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Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at s√=13s=13 TeV

Title	Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at s√=13s=13 TeV
Author	Khachatryan, V., Işıldak, Bora
Publication Date:	2017-02
Publication Place	- Springer International Publishing
Subject	Beyond standard model, Hadron-Hadron scattering (experiments), Particle and resonance production
Type	Periodical
Language	English
Digital	Yes
Manuscript	No
Library:	Özyeğin University
Library Asset ID	1029-8479
Record ID	5b560c45-a8a8-4da8-bc1c-a97447750120
Library Location	Natural and Mathematical Sciences
Date	2017-02
Sample Text	A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at s√=13s=13 TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 2.2 fb−1. The observations are in agreement with standard model predictions. An upper limit at 95% confidence level on the product of the production cross section and branching fraction into tau lepton pairs is calculated as a function of the resonance mass. For the sequential standard model, the presence of Z′ bosons decaying into tau lepton pairs is excluded for Z′ masses below 2.1 TeV, extending previous limits for this final state. For the topcolor-assisted technicolor model, which predicts Z′ bosons that preferentially couple to third-generation fermions, Z′ masses below 1.7 TeV are excluded, representing the most stringent limit to date.
DOI	10.1007/JHEP02(2017)048

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Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at s√=13s=13 TeV

Author Khachatryan, V., Işıldak, Bora

Publication Date 2017-02

Publication Place - Springer International Publishing

Subject Beyond standard model, Hadron-Hadron scattering (experiments), Particle and resonance production

Type Periodical

Language English

Digital Yes

Manuscript No

Library Özyeğin University

Library Asset ID 1029-8479

Record ID 5b560c45-a8a8-4da8-bc1c-a97447750120

Library Location Natural and Mathematical Sciences

Date 2017-02

Sample Text A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at s√=13s=13 TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 2.2 fb−1. The observations are in agreement with standard model predictions. An upper limit at 95% confidence level on the product of the production cross section and branching fraction into tau lepton pairs is calculated as a function of the resonance mass. For the sequential standard model, the presence of Z′ bosons decaying into tau lepton pairs is excluded for Z′ masses below 2.1 TeV, extending previous limits for this final state. For the topcolor-assisted technicolor model, which predicts Z′ bosons that preferentially couple to third-generation fermions, Z′ masses below 1.7 TeV are excluded, representing the most stringent limit to date.

DOI 10.1007/JHEP02(2017)048