Search for new physics in same-sign dilepton events in proton–proton collisions at √s = 13 TeV

Vardan Khachatryan; Felix Bachmair; Lukas Bäni; Lorenzo Bianchini; Bruno Casal; Günther Dissertori; Michael Dittmar; Mauro Donegà; Philipp Eller; Christoph Grab; Constantin Heidegger; Dmitry Hits; Jan Hoss; Gregor Kasieczka; Pierre Lecomte; Werner Lustermann; Boris Mangano; Matthieu Marionneau; Pablo Martinez Ruiz Del Arbol; Mario Masciovecchio; Maren T Meinhard; Daniel Meister; Francesco Micheli; Pasquale Musella; Francesca Nessi-Tedaldi; Francesco Pandolfi; Felicitas Pauss; Gaël Perrin; Luca Perrozzi; Milena Quittnat; Marco Rossini; Myriam Schönenberger; Andrey Starodumov; Maiko Takahashi; Vittorio R Tavolaro; Konstantinos Theofilatos; Rainer Wallny; CMS Collaboration

doi:10.1140/epjc/s10052-016-4261-z

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Search for new physics in same-sign dilepton events in proton–proton collisions at √s = 13 TeV

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Search for new physics in same-sign dilepton events in proton–proton collisions at √s = 13 TeV

Vardan Khachatryan, Felix Bachmair, Lukas Bäni, Lorenzo Bianchini, Bruno Casal, Günther Dissertori, Michael Dittmar, Mauro Donegà, Philipp Eller, Christoph Grab, …

The European physical journal. C, Particles and fields, Vol.76(8), 439

08/01/2016

DOI: 10.1140/epjc/s10052-016-4261-z

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Abstract

A search for new physics is performed using events with two isolated same-sign leptons, two or more jets, and missing transverse momentum. The results are based on a sample of protonâ€“proton collisions at a center-of-mass energy of 13TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 2.3 fb1. Multiple search regions are defined by classifying events in terms of missing transverse momentum, the scalar sum of jet transverse momenta, the transverse mass associated with a W boson candidate, the number of jets, the number of b quark jets, and the transverse momenta of the leptons in the event. The analysis is sensitive to a wide variety of possible signals beyond the standard model. No excess above the standard model background expectation is observed. Constraints are set on various supersymmetric models, with gluinos and bottom squarks excluded for masses up to 1300 and 680GeV, respectively, at the 95 % confidence level. Upper limits on the cross sections for the production of two top quark-antiquark pairs (119fb) and two same-sign top quarks (1.7pb) are also obtained. Selection efficiencies and model independent limits are provided to allow further interpretations of the results.

High Energy Physics

Experiment

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Title: Subtitle: Search for new physics in same-sign dilepton events in proton–proton collisions at √s = 13 TeV
Creators: Vardan Khachatryan - Yerevan Physics Institute
Felix Bachmair
Lukas Bäni
Lorenzo Bianchini
Bruno Casal
Günther Dissertori
Michael Dittmar
Mauro Donegà
Philipp Eller
Christoph Grab
Constantin Heidegger
Dmitry Hits
Jan Hoss
Gregor Kasieczka
Pierre Lecomte
Werner Lustermann
Boris Mangano
Matthieu Marionneau
Pablo Martinez Ruiz Del Arbol
Mario Masciovecchio
Maren T Meinhard
Daniel Meister
Francesco Micheli
Pasquale Musella
Francesca Nessi-Tedaldi
Francesco Pandolfi
Felicitas Pauss
Gaël Perrin
Luca Perrozzi
Milena Quittnat
Marco Rossini
Myriam Schönenberger
Andrey Starodumov
Maiko Takahashi
Vittorio R Tavolaro
Konstantinos Theofilatos
Rainer Wallny
CMS Collaboration
Contributors: Y Onel (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: The European physical journal. C, Particles and fields, Vol.76(8), 439
DOI: 10.1140/epjc/s10052-016-4261-z
NLM abbreviation: Eur Phys J C Part Fields
ISSN: 1434-6044
eISSN: 1434-6052
Publisher: Springer
Language: English
Date published: 08/01/2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984199734502771

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