Title

Search for pair production of second-generation scalar leptoquarks in pp collisions at √s= 7 TeV

Authors

V. Khachatryan
A. M. Sirunyan
Thomas Bergauer
Marc M. Baarmand
Marcus Hohlmann
H Kalakhety
Robert M. Ralich
Igor Vodopiyanov
B. Dorney
S. Guragain

Document Type

Article

Publication Title

Physical Review Letters

Abstract

A search for pair production of second-generation scalar leptoquarks in the final state with two muons and two jets is performed using proton-proton collision data at ffiffi s p ¼ 7 TeV collected by the CMS detector at the LHC. The data sample used corresponds to an integrated luminosity of 34 pb 1. The number of observed events is in good agreement with the predictions from the standard model processes. An upper limit is set on the second-generation leptoquark cross section times 2 as a function of the leptoquark mass, and leptoquarks with masses below 394 GeV are excluded at a 95% confidence level for ¼ 1, where is the leptoquark branching fraction into a muon and a quark. These limits are the most stringent to date.

DOI

10.1103/PhysRevLett.106.201803

Publication Date

5-17-2011

Recommended Citation

Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., . . . Weinberg, M. (2011). Search for pair production of second-generation scalar leptoquarks in pp collisions at √s=7TeV. Physical Review Letters, 106(20)