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Výbor pro spolupráci ČR se Spojeným ústavem jaderných výzkumů Dubna Přihlášení
Search for pair production of first-generation scalar leptoquarks at root s=13 TeV

Autor
Sirunyan A.M. Yerevan Physics Institute, Armenia
Finger Miroslav, prof. Ing. DrSc. Matematicko-fyzikální fakulta UK v Praze
Finger Michael, M.Sc. CSc. Matematicko-fyzikální fakulta UK v Praze, SÚJV Dubna
Afanasjev , Dr. SÚJV
et al.  různé instituce

Rok
2019

Časopis
PHYSICAL REVIEW D 99 (5) 052002

Web


Obsah
A search for the pair production of first-generation scalar leptoquarks is performed using proton-proton collision data recorded at 13 TeV center-of-mass energy with the CMS detector at the LHC. The data correspond to an integrated luminosity of 35.9 fb(-1). The leptoquarks are assumed to decay promptly to a quark and either an electron or a neutrino, with branching fractions beta and 1 - beta, respectively. The search targets the decay final states comprising two electrons, or one electron and large missing transverse momentum, along with two quarks that are detected as hadronic jets. First-generation scalar leptoquarks with masses below 1435 (1270) GeVare excluded for beta = 1.0(0.5). These are the most stringent limits on the mass of first-generation scalar leptoquarks to date. The data are also interpreted to set exclusion limits in the context of an R-parity violating supersymmetric model, predicting promptly decaying top squarks with a similar dielectron final state.

Příklad citace článku:
A. Sirunyan, M. Finger, M. Finger, . Afanasjev, . et al., "Search for pair production of first-generation scalar leptoquarks at root s=13 TeV ", PHYSICAL REVIEW D 99 (5) 052002 (2019)