A measurement of the Zγ → vv̄γ cross section in pp collisions at √s = 7TeV is presented, using data corresponding to an integrated luminosity of 5.0 fb-1 collected with the CMS detector. This measurement is based on the observation of events with an imbalance of transverse energy in excess of 130 GeV and a single photon in the absolute pseudorapidity range |n| < 1:4 with transverse energy above 145 GeV. The Zγ → vv̄γ production cross section is measured to be 21:1±4:2 (stat:)±4:3 (syst:)±0:5 (lum:) fb, which agrees with the standard model prediction of 21:9±1:1 fb. The results are combined withthe CMS measurement of Zγ production in the ℓ+ℓ-γfinal state (where ℓ is an electron or a muon) to yield the most stringent limits to date on triple gauge boson couplings: |hz < 2:7 × 10-3, |hz < 1:3 × 10-5 for ZZγ and |hγ < 2:9 × 10 -3, |hγ < 1:5 × 10-5 for Zγγ couplings.

Chatrchyan, S., Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., et al. (2013). Measurement of the production cross section for Zγ → vv̄γ in pp collisions at √s = 7 TeV and limits on ZZγ and Zγγ triple gauge boson couplings. JOURNAL OF HIGH ENERGY PHYSICS, 2013(10) [10.1007/JHEP10(2013)164].

Measurement of the production cross section for Zγ → vv̄γ in pp collisions at √s = 7 TeV and limits on ZZγ and Zγγ triple gauge boson couplings

Benaglia, A.;De Guio, F.;Di Matteo, L.;Fiorendi, S.;Ghezzi, A.;Govoni, P.;Lucchini, M. T.;Manzoni, R. A.;Martelli, A.;Moroni, L.;Paganoni, M.;Ragazzi, S.;de Fatis, T. Tabarelli;Branca, A.;Dinardo, M. E.;
2013

Abstract

A measurement of the Zγ → vv̄γ cross section in pp collisions at √s = 7TeV is presented, using data corresponding to an integrated luminosity of 5.0 fb-1 collected with the CMS detector. This measurement is based on the observation of events with an imbalance of transverse energy in excess of 130 GeV and a single photon in the absolute pseudorapidity range |n| < 1:4 with transverse energy above 145 GeV. The Zγ → vv̄γ production cross section is measured to be 21:1±4:2 (stat:)±4:3 (syst:)±0:5 (lum:) fb, which agrees with the standard model prediction of 21:9±1:1 fb. The results are combined withthe CMS measurement of Zγ production in the ℓ+ℓ-γfinal state (where ℓ is an electron or a muon) to yield the most stringent limits to date on triple gauge boson couplings: |hz < 2:7 × 10-3, |hz < 1:3 × 10-5 for ZZγ and |hγ < 2:9 × 10 -3, |hγ < 1:5 × 10-5 for Zγγ couplings.
Articolo in rivista - Articolo scientifico
Hadron-Hadron Scattering; Nuclear and High Energy Physics
English
2013
2013
10
164
none
Chatrchyan, S., Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., et al. (2013). Measurement of the production cross section for Zγ → vv̄γ in pp collisions at √s = 7 TeV and limits on ZZγ and Zγγ triple gauge boson couplings. JOURNAL OF HIGH ENERGY PHYSICS, 2013(10) [10.1007/JHEP10(2013)164].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/70383
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