Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/10693
Title: Search for contact interactions in mu(+)mu(-) events in pp collisions at root s = 7 TeV
Authors: Chatrchyan, S.
Khachatryan, V.
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Aguilo, E.
CMS Collaboration
Issue Date: 2013
Publisher: American Physical Society
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
URI: https://doi.org/10.1103/PhysRevD.87.032001
https://hdl.handle.net/10693
ISSN: 2470-0010
2470-0029
Appears in Collections:WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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