TY  - JOUR
A1  - Schlottmann, Elisabeth
A1  - Schicke, David
A1  - Krüger, Felix
A1  - Lingnau, Benjamin
A1  - Schneider, Christian
A1  - Höfling, Sven
A1  - Lüdge, Kathy
A1  - Porte, Xavier
A1  - Reitzenstein, Stephan
T1  - Stochastic polarization switching induced by optical injection in bimodal quantum-dot micropillar lasers
JF  - Optics Express
N2  - Mutual coupling and injection locking of semiconductor lasers is of great interest in non-linear dynamics and its applications for instance in secure data communication and photonic reservoir computing. Despite its importance, it has hardly been studied in microlasers operating at mu W light levels. In this context, vertically emitting quantum dot micropillar lasers are of high interest. Usually, their light emission is bimodal, and the gain competition of the associated linearly polarized fundamental emission modes results in complex switching dynamics. We report on selective optical injection into either one of the two fundamental mode components of a bimodal micropillar laser. Both modes can lock to the master laser and influence the non-injected mode by reducing the available gain. We demonstrate that the switching dynamics can be tailored externally via optical injection in very good agreement with our theory based on semi-classical rate equations. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
KW  - Nonlinear Dynamics
KW  - Bistability
KW  - Generation
KW  - Subject
KW  - Regimes
KW  - Physics
KW  - Vcsels
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-228603
VL  - 27
IS  - 20
ER  - 
TY  - JOUR
A1  - Akshat, Puri
A1  - Aaboud, M.
A1  - Aad, G.
A1  - Abbott, B.
A1  - Abdinov, O.
A1  - Abeloos, B.
A1  - Abhayasinghe, D. K.
A1  - Abidi, S. H.
A1  - Abou Zeid, O. S.
A1  - Abraham, N. L.
A1  - Abramowicz, H.
A1  - Abreu, H.
A1  - Abulaiti, Y.
A1  - Acharya, B. S.
A1  - Adachi, S.
A1  - Adam, L.
A1  - Adamczyk, L.
A1  - Adelman, J.
A1  - Adersberger, M.
A1  - Adiguzel, A.
A1  - Adye, T.
A1  - Affolder, A. A.
A1  - Afik, Y.
A1  - Agheorghiesei, C.
A1  - Aguilar-Saavedra, J. A.
A1  - Ahmadov, F.
A1  - Aiellil, G.
A1  - Akatsuka, S.
A1  - Akesson, T. P. A.
A1  - Akilli, E.
A1  - Akimov, A. V.
A1  - Alberghi, G. L.
A1  - Albert, J.
A1  - Albicocco, P.
A1  - Alconada Verzini, M. J.
A1  - Alderweireld, S.
A1  - Aleksa, M.
A1  - Aleksandrov, I. N.
A1  - Alexa, C.
A1  - Alexopoulos, T.
A1  - Alhroob, M.
A1  - Ali, B.
A1  - Alimonti, G.
A1  - Alison, J.
A1  - Andre, S. P.
A1  - Allaire, C.
A1  - Allbrooke, B. M. M.
A1  - Allen, B. W.
A1  - Allport, P. P.
A1  - Aloisio, A.
A1  - Alonso, A.
A1  - Alonso, F.
A1  - Alpigiani, C.
A1  - Alshehri, A. A.
A1  - Alstaty, M. I.
A1  - Alvarez, Gonzalez B.
A1  - Alvarez Piqueras, D.
A1  - Alviggi, M. G.
A1  - Amadio, B. T.
A1  - Amaral, Coutinho, Y.
A1  - Ambler, A.
A1  - Ambroz, L.
A1  - Amelung, C.
A1  - Amidei, D.
A1  - Amor Dos Santos, S. P.
A1  - Amoroso, S.
A1  - Amrouche, C. S.
A1  - Anastopoulos, C.
A1  - Ancu, L. S.
A1  - Andari, N.
A1  - Andeen, T.
A1  - Anders, C. F.
A1  - Anders, J. K.
A1  - Anderson, K. J.
A1  - Andreazza, A.
A1  - Andrei, V.
A1  - et al, 
T1  - Measurement of angular and momentum distributions of charged particles within and around jets in Pb plus Pb and pp collisions at root s(NN)=5.02 TeV with ATLAS at the LHC : XXVIIth International Conference on Ultrarelativistic Nucleus-Nucleus Collisions
(Quark Matter 2018)
JF  - Nuclear Physics A
N2  - Studies of the fragmentation of jets into charged particles in heavy-ion collisions can help in understanding the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon plasma. These proceedings present a measurement of the angular distribution of charged particles around the jet axis in root s(NN) = 5.02 TeV Pb+Pb and pp collisions, done using the ATLAS detector at the LHC. The measurement is performed inside jets reconstructed with the anti-k(t) algorithm with radius parameter R = 0.4, and is extended to regions outside the jet cone. Results are presented as a function of Pb+Pb collision centrality, and both jet and charged-particle transverse momenta.
KW  - jets
KW  - fragmentation functions
KW  - jet shapes
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-224703
VL  - 982
IS  - 2
ER  - 
TY  - JOUR
T1  - Search for light resonances decaying to boosted quark pairs and produced in association with a photon or a jet in proton-proton collisions at root s=13 TeV with the ATLAS detector
JF  - Physics Letters B
N2  - This Letter presents a search for new light resonances decaying to pairs of quarks and produced in association with a high-p(T) photon or jet. The dataset consists of proton-proton collisions with an integrated luminosity of 36.1 fb(-1) at a centre-of-mass energy of root s = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. Resonance candidates are identified as massive large-radius jets with substructure consistent with a particle decaying into a quark pair. The mass spectrum of the candidates is examined for local excesses above background. No evidence of a new resonance is observed in the data, which are used to exclude the production of a lepto-phobic axial-vector Z' boson. (C) 2018 The Author(s). Published by Elsevier B.V.
KW  - Parton Distributions
KW  - Dark-matter
KW  - Constraints
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-319552
VL  - 788
ER  - 
TY  - JOUR
A1  - Radchuk, Volodymyr
A1  - Rajiv, Sharma
A1  - Potokina, Elena
A1  - Radchuk, Ruslana
A1  - Weier, Diana
A1  - Munz, Eberhard
A1  - Schreiber, Miriam
A1  - Mascher, Martin
A1  - Stein, Nils
A1  - Wicker, Thomas
A1  - Kilian, Benjamin
A1  - Borisjuk, Ljudmilla
T1  - The highly divergent \(Jekyll\) genes, required for sexual reproduction, are lineage specific for the related grass tribes Triticeae and Bromeae
JF  - Plant Journal
N2  - Phylogenetically related groups of species contain lineage-specific genes that exhibit no sequence similarity to any genes outside the lineage. We describe here that the Jekyll gene, required for sexual reproduction, exists in two much diverged allelic variants, Jek1 and Jek3. Despite low similarity, the Jek1 and Jek3 proteins share identical signal peptides, conserved cysteine positions and direct repeats. The Jek1/Jek3 sequences are located at the same chromosomal locus and inherited in a monogenic Mendelian fashion. Jek3 has a similar expression as Jek1 and complements the Jek1 function in Jek1-deficient plants. Jek1 and Jek3 allelic variants were almost equally distributed in a collection of 485 wild and domesticated barley accessions. All domesticated barleys harboring the Jek1 allele belong to single haplotype J1-H1 indicating a genetic bottleneck during domestication. Domesticated barleys harboring the Jek3 allele consisted of three haplotypes. Jekyll-like sequences were found only in species of the closely related tribes Bromeae and Triticeae but not in other Poaceae. Non-invasive magnetic resonance imaging revealed intrinsic grain structure in Triticeae and Bromeae, associated with the Jekyll function. The emergence of Jekyll suggests its role in the separation of the Bromeae and Triticeae lineages within the Poaceae and identifies the Jekyll genes as lineage-specific.
KW  - gene alleles
KW  - lineage-specific genes
KW  - Triticeae
KW  - Hordeum vulgare
KW  - Triticum aestivum
KW  - gene family evolution
KW  - plant reproduction
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-224769
VL  - 98
IS  - 6
ER  - 
TY  - JOUR
T1  - Resolution of the ATLAS muon spectrometer monitored drift tubes in LHC Run 2
JF  - Journal of Instrumentation
N2  - The momentum measurement capability of the ATLAS muon spectrometer relies fundamentally on the intrinsic single-hit spatial resolution of the monitored drift tube precision tracking chambers. Optimal resolution is achieved with a dedicated calibration program that addresses the specific operating conditions of the 354 000 high-pressure drift tubes in the spectrometer. The calibrations consist of a set of timing offsets and drift time to drift distance transfer relations, and result in chamber resolution functions. This paper describes novel algorithms to obtain precision calibrations from data collected by ATLAS in LHC Run 2 and from a gas monitoring chamber, deployed in a dedicated gas facility. The algorithm output consists of a pair of correction constants per chamber which are applied to baseline calibrations, and determined to be valid for the entire ATLAS Run 2. The final single-hit spatial resolution, averaged over 1172 monitored drift tube chambers, is 81.7 +/- 2.2 mu m.
KW  - Gaseous detectors
KW  - Chambers
KW  - Muon spectrometers
KW  - Particle tracking detectors (Gaseous detectors)
KW  - Wire chambers (MWPC, Thin-gap chambers, drift chambers, drift tubes, proportional chambers etc)
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226869
VL  - 14
ER  - 
TY  - JOUR
T1  - Search for high-mass dilepton resonances using 139 fb\(^{-1}\) of \(pp\) collision data collected at root \(s\)=13 TeV with the ATLAS detector
JF  - Physics Letters B
N2  - A search for high-mass dielectron and dimuon resonances in the mass range of 250 GeV to 6TeV is presented. The data were recorded by the ATLAS experiment in proton-proton collisions at a centre-ofmass energy of root s = 13 TeV during Run 2 of the Large Hadron Collider and correspond to an integrated luminosity of 139 fb(-1). A functional form is fitted to the dilepton invariant-mass distribution to model the contribution from background processes, and a generic signal shape is used to determine the significance of observed deviations from this background estimate. No significant deviation is observed and upper limits are placed at the 95% confidence level on the fiducial cross-section times branching ratio for various resonance width hypotheses. The derived limits are shown to be applicable to spin-0, spin-1 and spin-2 signal hypotheses. For a set of benchmark models, the limits are converted into lower limits on the resonance mass and reach 4.5 TeV for the E-6-motivated Z(psi)' boson. Also presented are limits on Heavy Vector Triplet model couplings. (C) 2019 The Author. Published by Elsevier B.V.
KW  - Monte-Carlo
KW  - Bosons
KW  - Decay
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226844
VL  - 796
ER  - 
TY  - JOUR
T1  - Search for electroweak diboson production in association with a high-mass dijet system in semileptonic final states in \(pp\) collisions at √\(s\) =13 TeV with the ATLAS detector
JF  - Physical Review D
N2  - This paper reports on a search for electroweak diboson (WW/WZ/ZZ) production in association with a high-mass dijet system, using data from proton-proton collisions at a center-of-mass energy of N root s = 13 TeV. The data, corresponding to an integrated luminosity of 35.5 fb(-1), were recorded with the ATLAS detector in 2015 and 2016 at the Large Hadron Collider. The search is performed in final states in which one boson decays leptonically, and the other boson decays hadronically. The hadronically decaying W/Z boson is reconstructed as either two small-radius jets or one large-radius jet using jet substructure techniques. The electroweak production of WW/WZ/ZZ in association with two jets is measured with an observed (expected) significance of 2.7 (2.5) standard deviations, and the fiducial cross section is measured to be 45.1 +/- 8.6(stat.)(-14.6)(+15.9)(syst.) fb.
KW  - Proton-Proton Collisions
KW  - 2 Jets
KW  - Parton Distributions
KW  - Weak-Interactions
KW  - Cross-Section
KW  - High-Energies
KW  - Boson
KW  - Constraints
KW  - Scattering
KW  - Couplings
KW  - Particle accelerators
KW  - Hadron colliders
KW  - W & Z bosons
KW  - Gauge bosons
KW  - Quantum electrodynamics
KW  - Electroweak interaction
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226877
VL  - 100
ER  - 
TY  - JOUR
T1  - Search for a heavy charged boson in events with a charged lepton and missing transverse momentum from \(pp\) collisions at √\(s\)=13 TeV with the ATLAS detector
JF  - Physical Review D
N2  - A search for a heavy charged-boson resonance decaying into a charged lepton (electron or muon) and a neutrino is reported. A data sample of 139 fb(-1) of proton-proton collisions at root s = 13 TeV collected with the ATLAS detector at the LHC during 2015-2018 is used in the search. The observed transverse mass distribution computed from the lepton and missing transverse momenta is consistent with the distribution expected from the Standard Model, and upper limits on the cross section for pp -> W'-> lv are extracted (l = e or mu). These vary between 1.3 pb and 0.05 tb depending on the resonance mass in the range between 0.15 and 7.0 TeV at 95% confidence level for the electron and muon channels combined. Gauge bosons with a mass below 6.0 and 5.1 TeV are excluded in the electron and muon channels, respectively, in a model with a resonance that has couplings to fermions identical to those of the Standard Model W boson. Cross-section limits are also provided for resonances with several fixed Gamma/m values in the range between 1% and 15%. Model-independent limits are derived in single-bin signal regions defined by a varying minimum transverse mass threshold. The resulting visible cross-section upper limits range between 4.6 (15) ph and 22 (22) ab as the threshold increases from 130 (110) GeV to 5.1 (5.1) TeV in the electron (muon) channel.
KW  - Pair Production
KW  - Symmetry
KW  - Decay
KW  - Monte-Carlo
KW  - semileptonic & radiative decays
KW  - Leptonic
KW  - Hadron-hadron interactions
KW  - Extensions of gauge sector
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226835
VL  - 100
ER  - 
TY  - JOUR
T1  - Measurement of distributions sensitive to the underlying event in inclusive Z boson production in \(pp\) collisions at √\(s\)=13 TeV with the ATLAS detector
JF  - European Physical Journal C
N2  - This paper presents measurements of charged-particle distributions sensitive to the properties of the underlying event in events containing a Z boson decaying into a muon pair. The data were obtained using the ATLAS detector at the LHC in proton-proton collisions at a centre-of-mass energy of 13 TeV with an integrated luminosity of 3.2 fb(-1). Distributions of the charged-particle multiplicity and of the charged-particle transverse momentum are measured in regions of the azimuth defined relative to the Z boson direction. The measured distributions are compared with the predictions of various Monte Carlo generators which implement different underyling event models. The Monte Carlo model predictions qualitatively describe the data well, but with some significant discrepancies.
KW  - Cross-Section
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226883
VL  - 79
IS  - 666
ER  - 
TY  - JOUR
T1  - Measurement of the cross-section and charge asymmetry of W bosons produced in proton-proton collisions at √\(s\)=8 TeV with the ATLAS detector
JF  - European Physical Journal C
N2  - This paper presents measurements of the W+->mu+nu and W-->mu-nu cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton-proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of 20.2fb(-1). The precision of the cross-section measurements varies between 0.8 and 1.5% as a function of the pseudorapidity, excluding the 1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured with an uncertainty between 0.002 and 0.003. The results are compared with predictions based on next-to-next-to-leading-order calculations with various parton distribution functions and have the sensitivity to discriminate between them.
KW  - Pair Production
KW  - Monte-Carlo
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226850
VL  - 79
IS  - 760
ER  - 
TY  - JOUR
T1  - Observation of Light-by-Light Scattering in Ultraperipheral Pb + Pb Collisions with the ATLAS Detector
JF  - Physical Review Letters
N2  - This Letter describes the observation of the light-by-light scattering process, gamma gamma -> gamma gamma, in Pb + Pb collisions at root S-NN = 5.02 TeV. The analysis is conducted using a data sample corresponding to an integrated luminosity of 1.73 nb(-1), collected in November 2018 by the ATLAS experiment at the LHC. Light-by-light scattering candidates are selected in events with two photons produced exclusively, each with transverse energy E-T(gamma) > 3 GeV and pseudorapidity vertical bar eta(gamma)vertical bar < 2.4, diphoton invariant mass above 6 GeV, and small diphoton transverse momentum and acoplanarity. After applying all selection criteria, 59 candidate events are observed for a background expectation of 12 +/- 3 events. The observed excess of events over the expected background has a significance of 8.2 standard deviations. The measured fiducial cross section is 78 +/- 13(stat) +/- 7(syst) +/- 3(lumi) nb.
KW  - Ultrarelativistic Heavy-Ion
KW  - Delbruck Scattering
KW  - Physics
KW  - Relativistic heavy-ion collisions
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226892
VL  - 123
ER  - 
TY  - JOUR
T1  - Identification of boosted Higgs bosons decaying into \(b\)-quark pairs with the ATLAS detector at 13 TeV
JF  - European Physical Journal C
N2  - This paper describes a study of techniques for identifying Higgs bosons at high transverse momenta decaying into bottom-quark pairs, H -> b (b) over bar, for proton-proton collision data collected by the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy root s = 13 TeV. These decays are reconstructed from calorimeter jets found with the anti-k(t) R = 1.0 jet algorithm. To tag Higgs bosons, a combination of requirements is used: b-tagging of R = 0.2 track-jets matched to the large-R calorimeter jet, and requirements on the jet mass and other jet substructure variables. The Higgs boson tagging efficiency and corresponding multijet and hadronic top-quark background rejections are evaluated using Monte Carlo simulation. Several benchmark tagging selections are defined for different signal efficiency targets. The modelling of the relevant input distributions used to tag Higgs bosons is studied in 36 fb(-1) of data collected in 2015 and 2016 using g -> b (b) over bar and Z(-> b (b) over bar)gamma event selections in data. Both processes are found to be well modelled within the statistical and systematic uncertainties.
KW  - Parton distributions
KW  - PP collisions
KW  - search
KW  - MASS
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226812
VL  - 79
IS  - 836
ER  - 
TY  - JOUR
T1  - Measurement of the inclusive cross-section for the production of jets in association with a \(Z\) boson in proton-proton collisions at 8 TeV using the ATLAS detector
JF  - European Physical Journal C
N2  - The inclusive cross-section for jet production in association with a Z boson decaying into an electronpositron pair is measured as a function of the transverse momentum and the absolute rapidity of jets using 19.9 fb(-1) of root s = 8 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider. The measured Z + jets cross-section is unfolded to the particle level. The cross-section is compared with state-of-the-art Standard Model calculations, including the next-to-leading-order and next-to-next-to-leading-order perturbative QCD calculations, corrected for non-perturbative and QED radiation effects. The results of the measurements cover final-state jets with transverse momenta up to 1 TeV, and show good agreement with fixed-order calculations.
KW  - P(P) over-bar collisions
KW  - +
KW  - distributions
KW  - decay
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226821
VL  - 79
IS  - 847
ER  - 
TY  - JOUR
T1  - Search for diboson resonances in hadronic final states in 139 fb\(^{-1}\) of \(pp\) collisions at √\(s\)=13 TeV with the ATLAS detector
JF  - Journal of High Energy Physics
N2  - Narrow resonances decaying into WW, WZ or ZZ boson pairs are searched for in 139 fb(-1) of proton-proton collision data at a centre-of-mass energy of root s = 13TeV recorded with the ATLAS detector at the Large Hadron Collider from 2015 to 2018. The diboson system is reconstructed using pairs of high transverse momentum, large-radius jets. These jets are built from a combination of calorimeter- and tracker-inputs compatible with the hadronic decay of a boosted W or Z boson, using jet mass and substructure properties. The search is performed for diboson resonances with masses greater than 1.3TeV. No significant deviations from the background expectations are observed. Exclusion limits at the 95% confidence level are set on the production cross-section times branching ratio into dibosons for resonances in a range of theories beyond the Standard Model, with the highest excluded mass of a new gauge boson at 3.8TeV in the context of mass-degenerate resonances that couple predominantly to gauge bosons.
KW  - Hadron-Hadron scattering (experiments)
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226905
VL  - 09
IS  - 91
ER  - 
TY  - JOUR
T1  - FCC-hh: The Hadron Collider: Future Circular Collider Conceptual Design Report Volume 3
JF  - European Physical Journal - Special Topics
N2  - In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100TeV. Its unprecedented centre of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries.
KW  - Multiple-Scattering
KW  - Top-Quark
KW  - CERN
KW  - Energy
KW  - Reduction
KW  - Impact
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226917
VL  - 228
ER  - 
TY  - JOUR
T1  - HE-LHC: The High-Energy Large Hadron Collider : Future Circular Collider Conceptual Design Report Volume 4
JF  - European Physical Journal - Special Topics
N2  - In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100 km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100 TeV. Its unprecedented centre-of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries.
KW  - Event builder
KW  - Impact
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226928
VL  - 228
IS  - 5
ER  - 
TY  - JOUR
T1  - FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1
JF  - European Physical Journal C
N2  - We review the physics opportunities of the Future Circular Collider, covering its e(+)e(-), pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of electroweak, Higgs and strong interactions, the top quark and flavour, as well as phenomena beyond the Standard Model. We highlight the synergy and complementarity of the different colliders, which will contribute to a uniquely coherent and ambitious research programme, providing an unmatchable combination of precision and sensitivity to new physics.
KW  - Electroweak Phase-Transition
KW  - By-Light Scattering
KW  - Deep Inelastic-scattering
KW  - Strange Baryon Production
KW  - Dark-Matter
KW  - Radiative-corrections
KW  - E(+)E(-) collicions
KW  - Transverse-Momentum
KW  - Top-Quark
KW  - Branching fractions
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226938
VL  - 79
IS  - 474
ER  - 
TY  - JOUR
T1  - FCC-ee: The Lepton Collider: Future Circular Collider Conceptual Design Report Volume 2
JF  - European Physical Journal - Special Topics
N2  - In response to the 2013 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) study was launched, as an international collaboration hosted by CERN. This study covers a highest-luminosity high-energy lepton collider (FCC-ee) and an energy-frontier hadron collider (FCC-hh), which could, successively, be installed in the same 100 km tunnel. The scientific capabilities of the integrated FCC programme would serve the worldwide community throughout the 21st century. The FCC study also investigates an LHC energy upgrade, using FCC-hh technology. This document constitutes the second volume of the FCC Conceptual Design Report, devoted to the electron-positron collider FCC-ee. After summarizing the physics discovery opportunities, it presents the accelerator design, performance reach, a staged operation scenario, the underlying technologies, civil engineering, technical infrastructure, and an implementation plan. FCC-ee can be built with today's technology. Most of the FCC-ee infrastructure could be reused for FCC-hh. Combining concepts from past and present lepton colliders and adding a few novel elements, the FCC-ee design promises outstandingly high luminosity. This will make the FCC-ee a unique precision instrument to study the heaviest known particles (Z, W and H bosons and the top quark), offering great direct and indirect sensitivity to new physics.
KW  - Large Hadron Collider
KW  - Double-Beta Decay
KW  - e(+)e(-) Collisions
KW  - Flavor Violation
KW  - Electroweak Measurements
KW  - Bhabha Scattering
KW  - Missing Energy
KW  - Single-Photon
KW  - Neutrino Mass
KW  - Higgy-Boson
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226947
VL  - 228
IS  - 2
ER  - 
TY  - JOUR
A1  - Winter, Patrick
A1  - Andelovic, Kristina
A1  - Kampf, Thomas
A1  - Gutjahr, Fabian Tobias
A1  - Heidenreich, Julius
A1  - Zernecke, Alma
A1  - Bauer, Wolfgang Rudolf
A1  - Jakob, Peter Michael
A1  - Herold, Volker
T1  - Fast self-navigated wall shear stress measurements in the murine aortic archusing radial 4D-phase contrast cardiovascular magnetic resonance at 17.6 T
JF  - Journal of Cardiovascular Magnetic Resonance
N2  - Purpose
4D flow cardiovascular magnetic resonance (CMR) and the assessment of wall shear stress (WSS) are non-invasive tools to study cardiovascular risks in vivo. Major limitations of conventional triggered methods are the long measurement times needed for high-resolution data sets and the necessity of stable electrocardiographic (ECG) triggering. In this work an ECG-free retrospectively synchronized method is presented that enables accelerated high-resolution measurements of 4D flow and WSS in the aortic arch of mice.

Methods
4D flow and WSS were measured in the aortic arch of 12-week-old wildtype C57BL/6 J mice (n = 7) with a radial 4D-phase-contrast (PC)-CMR sequence, which was validated in a flow phantom. Cardiac and respiratory motion signals were extracted from the radial CMR signal and were used for the reconstruction of 4D-flow data. Rigid motion correction and a first order B0 correction was used to improve the robustness of magnitude and velocity data.

The aortic lumen was segmented semi-automatically. Temporally averaged and time-resolved WSS and oscillatory shear index (OSI) were calculated from the spatial velocity gradients at the lumen surface at 14 locations along the aortic arch. Reproducibility was tested in 3 animals and the influence of subsampling was investigated.

Results
Volume flow, cross-sectional areas, WSS and the OSI were determined in a measurement time of only 32 min. Longitudinal and circumferential WSS and radial stress were assessed at 14 analysis planes along the aortic arch. The average longitudinal, circumferential and radial stress values were 1.52 ± 0.29 N/m2, 0.28 ± 0.24 N/m2 and − 0.21 ± 0.19 N/m2, respectively. Good reproducibility of WSS values was observed.

Conclusion
This work presents a robust measurement of 4D flow and WSS in mice without the need of ECG trigger signals. The retrospective approach provides fast flow quantification within 35 min and a flexible reconstruction framework.
KW  - 4D flow
KW  - WSS
KW  - OSI
KW  - Self-navigation
KW  - Mouse
KW  - Aortic arch
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-201120
VL  - 21
ER  - 
TY  - JOUR
A1  - Herold, Volker
A1  - Kampf, Thomas
A1  - Jakob, Peter Michael
T1  - Dynamic magnetic resonance scattering
JF  - Communications Physics
N2  - Dynamic light scattering is a popular technique to determine the size distribution of small particles in the sub micrometer region. It operates in reciprocal space, by analyzing the signal fluctuations with the photon auto correlation function. Equally, pulsed field gradient magnetic resonance is a technique generating data in the reciprocal space of the density distribution of an object. Here we show the feasibility of employing a magnetic resonance imaging system as a dynamic scattering device similar to dynamic light scattering appliances. By acquiring a time series of single data points from reciprocal space, analogue to dynamic light scattering, we demonstrate the examination of motion patterns of microscopic particles. This method allows the examination of particle dynamics significantly below the spatial resolution of magnetic resonance imaging. It is not limited by relaxation times and covers a wide field of applications for particle or cell motion in opaque media.
KW  - Characterization and analytical techniques
KW  - Imaging techniques
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-201091
VL  - 2
ER  -