A search for high-mass resonances decaying to τ + τ − in pp collisions at √s =8 TeV with the ATLAS detector

ATLAS, Collaboration; Beck, Hans Peter; Cervelli, Alberto; Ereditato, Antonio; Haug, Sigve; Kabana, Sonja; Meloni, Federico; Pretzl, Klaus-Peter; Stramaglia, Maria Elena; Stucci, Stefania; Weber, Michael (2015). A search for high-mass resonances decaying to τ + τ − in pp collisions at √s =8 TeV with the ATLAS detector. Journal of High Energy Physics, 7(7), p. 157. Springer 10.1007/JHEP07(2015)157

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A search for high-mass resonances decaying into τ + τ − final states using proton-proton collisions at s √ =8 TeV produced by the Large Hadron Collider is presented. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 19.5-20.3 fb −1 . No statistically significant excess above the Standard Model expectation is observed; 95% credibility upper limits are set on the cross section times branching fraction of Z ′ resonances decaying into τ + τ − pairs as a function of the resonance mass. As a result, Z ′ bosons of the Sequential Standard Model with masses less than 2.02 TeV are excluded at 95% credibility. The impact of the fermionic couplings on the Z ′ acceptance is investigated and limits are also placed on a Z ′ model that exhibits enhanced couplings to third-generation fermions.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)
08 Faculty of Science > Other Institutions > Emeriti, Faculty of Science

UniBE Contributor:

Beck, Hans Peter; Cervelli, Alberto; Ereditato, Antonio; Haug, Sigve; Meloni, Federico; Pretzl, Klaus-Peter; Stramaglia, Maria Elena; Stucci, Stefania and Weber, Michael

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Annette Krebs-Wegenast

Date Deposited:

07 Sep 2016 11:36

Last Modified:

11 Sep 2016 02:12

Publisher DOI:

10.1007/JHEP07(2015)157

ArXiv ID:

1502.07177

Additional Information:

Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt

BORIS DOI:

10.7892/boris.87654

URI:

https://boris.unibe.ch/id/eprint/87654

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