Title
Measurement of the production cross section for <tex>$Z\gamma\rightarrow\nu\overline{\nu}\gamma$</tex> in pp collisions at <tex>$\sqrt{s}$</tex> =7 TeV and limits on <tex>$ZZ\gamma$</tex> and <tex>$Z\gamma\gamma$</tex> triple gauge boson couplings Measurement of the production cross section for <tex>$Z\gamma\rightarrow\nu\overline{\nu}\gamma$</tex> in pp collisions at <tex>$\sqrt{s}$</tex> =7 TeV and limits on <tex>$ZZ\gamma$</tex> and <tex>$Z\gamma\gamma$</tex> triple gauge boson couplings
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol ,
Subject
Physics
Source (journal)
Journal of high energy physics. - Bristol
Volume/pages
(2013) :10 , p. 1-30
ISSN
1126-6708
1029-8479
Article Reference
164
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A measurement of the Z gamma -> nu(nu) over bar gamma cross section in pp collisions at root s = 7 TeV 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 vertical bar eta vertical bar < 1.4 with transverse energy above 145 GeV. The Z gamma -> nu<(nu)over bar>gamma 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 with the CMS measurement of Z gamma production in the l(+)l(-)gamma final state (where l is an electron or a muon) to yield the most stringent limits to date on triple gauge boson couplings. vertical bar h(3)(Z)vertical bar < 2.7 x 10(-3), vertical bar h(4)(Z)vertical bar < 1.3 x 10(-5) for ZZ gamma and vertical bar h(3)(gamma)vertical bar < 2.9 x 10(-3), vertical bar h(4)(gamma)vertical bar < 1.5 x 10(-5) for Z gamma gamma couplings.
E-info
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/c32f22/112731.pdf
Handle