Search for contact interactions in mu(+)mu(-) events in pp collisions at root s = 7 TeV

Abstract

Results are reported from a search for the effects of contact interactions using events with a high-mass, oppositely charged muon pair. The events are collected in proton-proton collisions at root s = 7 TeV using the Compact Muon Solenoid detector at the Large Hadron Collider. The data sample corresponds to an integrated luminosity of 5: 3 fb(-1). The observed dimuon mass spectrum is consistent with that expected from the standard model. The data are interpreted in the context of a quark-and muon-compositeness model with a left-handed isoscalar current and an energy scale parameter Lambda. The 95 confidence level lower limit on Lambda is 9.5 TeV under the assumption of destructive interference between the standard model and contact-interaction amplitudes. For constructive interference, the limit is 13.1 TeV. These limits are comparable to the most stringent ones reported to date. DOI: 10.1103/PhysRevD.87.032001


Tutti gli autori

  • POMPILI A.;MARANGELLI B.;CALABRIA C.;SELVAGGI G.;SINGH G.;LUSITO L.;BARBONE L.;ABBRESCIA M.;DE PALMA M.;PACIFICO N.;MY S.;NUZZO S.V.;CHHIBRA S.S

Titolo volume/Rivista

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Anno di pubblicazione

2013

ISSN

1550-7998

ISBN

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Numero di citazioni Wos

4

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Numero di citazioni Scopus

7

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Settori ERC

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Codici ASJC

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