An inclusive measurement of the Zγ→ννγproduction cross section in ppcollisions at √s=8 TeVis presented, using data corresponding to an integrated luminosity of 19.6fb−1collected with the CMS detector at the LHC. This measurement is based on the observation of events with large missing energy and with a single photon with transverse momentum above 145GeVand absolute pseudorapidity in the range |η| <1.44. The measured Zγ→ννγproduction cross section, 52.7 ±2.1(stat)±6.4(syst)±1.4(lumi)fb, agrees well with the standard model prediction of 50.0+2.4−2.2fb. A study of the photon transverse momentum spectrum yields the most stringent limits to date on the anomalous ZZγand Zγγtrilinear gauge boson couplings.

Measurement of the Zγ→νν‾γ production cross section in pp collisions at s=8 TeV and limits on anomalous ZZγ and Zγγ trilinear gauge boson couplings

Sola, V.;AMAPANE, Nicola Carlo;ARGIRO', Stefano;BELLAN, Riccardo;COSTA, Marco;COVARELLI, Roberto;DEGANO, Alessandro;KIANI, Muhammad Bilal Manzoor;MIGLIORE, Ernesto;MONACO, Vincenzo;MONTEIL, ENNIO;OBERTINO, Maria Margherita;PACHER, LUCA;PINNA ANGIONI, GIAN LUCA;RAVERA, FABIO;ROMERO, Alessandra;SACCHI, Roberto;SOLANO, Ada Maria;
2016-01-01

Abstract

An inclusive measurement of the Zγ→ννγproduction cross section in ppcollisions at √s=8 TeVis presented, using data corresponding to an integrated luminosity of 19.6fb−1collected with the CMS detector at the LHC. This measurement is based on the observation of events with large missing energy and with a single photon with transverse momentum above 145GeVand absolute pseudorapidity in the range |η| <1.44. The measured Zγ→ννγproduction cross section, 52.7 ±2.1(stat)±6.4(syst)±1.4(lumi)fb, agrees well with the standard model prediction of 50.0+2.4−2.2fb. A study of the photon transverse momentum spectrum yields the most stringent limits to date on the anomalous ZZγand Zγγtrilinear gauge boson couplings.
2016
Inglese
Esperti anonimi
760
448
468
21
http://www.sciencedirect.com/science/journal/03702693
MET; Photon; Nuclear and High Energy Physics
1 – prodotto con file in versione Open Access (allegherò il file al passo 6 - Carica)
262
2273
Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M...espandi
info:eu-repo/semantics/article
open
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1639844
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