Measurement of the Z gamma production cross section in pp collisions at 8 TeV and search for anomalous triple gauge boson couplings

Title
Measurement of the Z gamma production cross section in pp collisions at 8 TeV and search for anomalous triple gauge boson couplings
Authors
김태정
Keywords
Hadron-Hadron Scattering
Issue Date
2015-05
Publisher
SPRINGER
Citation
JOURNAL OF HIGH ENERGY PHYSICS, NO 4, Page. 10-28
Abstract
The cross section for the production of Z gamma in proton-proton collisions at 8 TeV is measured based on data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of 19.5 fb(-1). Events with an oppositely-charged pair of muons or electrons together with an isolated photon are selected. The differential cross section as a function of the photon transverse momentum is measured inclusively and exclusively, where the exclusive selection applies a veto on central jets. The observed cross sections are compatible with the expectations of next-to-next-to-leading-order quantum chromodynamics. Limits on anomalous triple gauge couplings of ZZ gamma and Z gamma gamma are set that improve on previous experimental results obtained with the charged lepton decay modes of the Z boson.
URI
http://link.springer.com/article/10.1007%2FJHEP04%282015%29164http://hdl.handle.net/20.500.11754/24764
ISSN
1029-8479
DOI
http://dx.doi.org/10.1007/JHEP04(2015)164
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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