Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector
Please always quote using this URN: urn:nbn:de:bvb:20-opus-127427
- A search for a fermiophobic Higgs boson using diphoton events produced in proton-proton collisions at a centre-of-mass energy of √s=7 TeV is performed using data corresponding to an integrated luminosity of 4.9 fb\(^{−1}\) collected by the ATLAS experiment at the Large Hadron Collider. A specific benchmark model is considered where all the fermion couplings to the Higgs boson are set to zero and the bosonic couplings are kept at the Standard Model values (fermiophobic Higgs model). The largest excess with respect to the background-onlyA search for a fermiophobic Higgs boson using diphoton events produced in proton-proton collisions at a centre-of-mass energy of √s=7 TeV is performed using data corresponding to an integrated luminosity of 4.9 fb\(^{−1}\) collected by the ATLAS experiment at the Large Hadron Collider. A specific benchmark model is considered where all the fermion couplings to the Higgs boson are set to zero and the bosonic couplings are kept at the Standard Model values (fermiophobic Higgs model). The largest excess with respect to the background-only hypothesis is found at 125.5 GeV, with a local significance of 2.9 standard deviations, which reduces to 1.6 standard deviations when taking into account the look-elsewhere effect. The data exclude the fermiophobic Higgs model in the ranges 110.0–118.0 GeV and 119.5–121.0 GeV at 95 % confidence level.…
| URN: | urn:nbn:de:bvb:20-opus-127427 |
|---|---|
| Document Type: | Journal article |
| Faculties: | Fakultät für Physik und Astronomie |
| Language: | English |
| Parent Title (English): | The European Physical Journal C |
| Year of Completion: | 2012 |
| Volume: | 72 |
| Issue: | 2157 |
| Source: | European Physical Journal C (2012) 72:2157 DOI 10.1140/epjc/s10052-012-2157-0 |
| DOI: | https://doi.org/10.1140/epjc/s10052-012-2157-0 |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 539 Moderne Physik |
| Tag: | Higgs boson signal; diphoton invariant mass; invariant mass resolution; photon energy scale; unconverted photon |
| Release Date: | 2016/11/04 |
| Creating Corporation: | ATLAS Collaboration |
| Licence (German): |  CC BY: Creative-Commons-Lizenz: Namensnennung |