Search for single production of scalar leptoquarks in proton-proton collisions at s =8 TeV

(CMS Collaboration)

doi:10.1103/PhysRevD.93.032005

Search for single production of scalar leptoquarks in proton-proton collisions at s =8 TeV

(CMS Collaboration)

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

A search is presented for the production of both first- and second-generation scalar leptoquarks with a final state of either two electrons and one jet or two muons and one jet. The search is based on a data sample of proton-proton collisions at center-of-mass energy s=8 TeV recorded with the CMS detector and corresponding to an integrated luminosity of 19.6 fb-1. Upper limits are set on both the first- and second-generation leptoquark production cross sections as functions of the leptoquark mass and the leptoquark couplings to a lepton and a quark. Results are compared with theoretical predictions to obtain lower limits on the leptoquark mass. At 95% confidence level, single production of first-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 1730 GeV, and second-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 530 GeV. These are the best overall limits on the production of first-generation leptoquarks to date.

Original language	English
Article number	032005
Journal	Physical Review D
Volume	93
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.93.032005
Publication status	Published - 24 Feb 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 CERN.

Funding

Funders	Funder number
National Science Foundation	1151640, 1506168, 1206044, 1314131, 1401984, 1306951, 1506130, 1120138, 1211067, 1508869
Seventh Framework Programme	246806
Science and Technology Facilities Council	ST/L00609X/1, ST/N000250/1, ST/J004901/1, ST/K003542/1, ST/K001256/1, GRIDPP, ST/J005479/1, ST/I000305/1, PP/E000479/1, ST/J005665/1, ST/J50094X/1, ST/M004775/1, ST/M002020/1, ST/N000242/1, ST/K003844/1, ST/J004871/1, PP/E002803/1, ST/N001273/1, ST/H000925/2, ST/H000925/1, ST/K001531/1, ST/M005356/1, ST/I005912/1, ST/K001639/1, ST/L005603/1, ST/I003622/1
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	153664

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10.1103/PhysRevD.93.032005

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@article{7926f815e9774f3898b466e367be66de,

title = "Search for single production of scalar leptoquarks in proton-proton collisions at s =8 TeV",

abstract = "A search is presented for the production of both first- and second-generation scalar leptoquarks with a final state of either two electrons and one jet or two muons and one jet. The search is based on a data sample of proton-proton collisions at center-of-mass energy s=8 TeV recorded with the CMS detector and corresponding to an integrated luminosity of 19.6 fb-1. Upper limits are set on both the first- and second-generation leptoquark production cross sections as functions of the leptoquark mass and the leptoquark couplings to a lepton and a quark. Results are compared with theoretical predictions to obtain lower limits on the leptoquark mass. At 95% confidence level, single production of first-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 1730 GeV, and second-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 530 GeV. These are the best overall limits on the production of first-generation leptoquarks to date.",

author = "{(CMS Collaboration)} and V. Khachatryan and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, {V. M.} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and V. Kn{\"u}nz and A. K{\"o}nig and M. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and B. Rahbaran and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and J. Strauss and W. Treberer-Treberspurg and W. Waltenberger and Wulz, {C. E.} and V. Mossolov and N. Shumeiko and {Suarez Gonzalez}, J. and S. Alderweireldt and T. Cornelis and {De Wolf}, {E. A.} and X. Janssen and A. Knutsson and J. Lauwers and S. Luyckx and S. Ochesanu and R. Rougny and {Van De Klundert}, M. and {Van Haevermaet}, H. and {Van Mechelen}, P. and A. Cakir",

note = "Publisher Copyright: {\textcopyright} 2016 CERN.",

year = "2016",

month = feb,

day = "24",

doi = "10.1103/PhysRevD.93.032005",

language = "English",

volume = "93",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

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T1 - Search for single production of scalar leptoquarks in proton-proton collisions at s =8 TeV

AU - (CMS Collaboration)

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Knünz, V.

AU - König, A.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Lauwers, J.

AU - Luyckx, S.

AU - Ochesanu, S.

AU - Rougny, R.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Cakir, A.

PY - 2016/2/24

Y1 - 2016/2/24

N2 - A search is presented for the production of both first- and second-generation scalar leptoquarks with a final state of either two electrons and one jet or two muons and one jet. The search is based on a data sample of proton-proton collisions at center-of-mass energy s=8 TeV recorded with the CMS detector and corresponding to an integrated luminosity of 19.6 fb-1. Upper limits are set on both the first- and second-generation leptoquark production cross sections as functions of the leptoquark mass and the leptoquark couplings to a lepton and a quark. Results are compared with theoretical predictions to obtain lower limits on the leptoquark mass. At 95% confidence level, single production of first-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 1730 GeV, and second-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 530 GeV. These are the best overall limits on the production of first-generation leptoquarks to date.

AB - A search is presented for the production of both first- and second-generation scalar leptoquarks with a final state of either two electrons and one jet or two muons and one jet. The search is based on a data sample of proton-proton collisions at center-of-mass energy s=8 TeV recorded with the CMS detector and corresponding to an integrated luminosity of 19.6 fb-1. Upper limits are set on both the first- and second-generation leptoquark production cross sections as functions of the leptoquark mass and the leptoquark couplings to a lepton and a quark. Results are compared with theoretical predictions to obtain lower limits on the leptoquark mass. At 95% confidence level, single production of first-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 1730 GeV, and second-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 530 GeV. These are the best overall limits on the production of first-generation leptoquarks to date.

UR - http://www.scopus.com/inward/record.url?scp=84960498306&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.93.032005

DO - 10.1103/PhysRevD.93.032005

M3 - Article

AN - SCOPUS:84960498306

SN - 2470-0010

VL - 93

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 032005

ER -

Search for single production of scalar leptoquarks in proton-proton collisions at s =8 TeV

Abstract

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