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Title: Limits on the anomalous ZZ{gamma} and Z{gamma}{gamma} couplings in p{anti p} collisions at {radical}s = 1.8 TeV

Abstract

The authors performed a direct search for the anomalous ZZ{gamma} and Z{gamma}{gamma} couplings by studying p{anti p} {yields} {ell}{ell}{gamma} + X, ({ell} = e, {mu}) events at {radical}s = 1.8 TeV with the D0 detector at the Fermilab Tevatron Collider. A fit to the transverse energy spectrum of the photon in the signal events, based on the data set corresponding to an integrated luminosity of 14.3 pb{sup {minus}1} (13.7 pb{sup {minus}1}) for the electron (muon) channel, yields the following 95% confidence level limits on the anomalous CP-conserving ZZ{gamma} couplings: {vert_bar}h{sub 30}{sup Z}{vert_bar} < 1.8 (h{sub 40}{sup Z} = 0), and {vert_bar}h{sub 40}{sup Z}{vert_bar} < 0.5 (h{sub 30}{sup Z} = 0), for a form-factor scale {Lambda} = 500 GeV. Limits for the Z{gamma}{gamma} couplings and CP-violating couplings are also discussed.

Authors:
Publication Date:
Research Org.:
Fermi National Accelerator Lab., Batavia, IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); CEA, 75 - Paris (France)
OSTI Identifier:
106574
Report Number(s):
FNAL/C-95/249-E; CONF-9508155-14
ON: DE95016198; TRN: 95:021910
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Conference
Resource Relation:
Conference: 17. international symposium on lepton-photon interactions, Beijing (China), 10-15 Aug 1995; Other Information: PBD: Jul 1995
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; Z NEUTRAL BOSONS; COUPLING; RADIATIVE DECAY; PHOTONS; PROTON-ANTIPROTON INTERACTIONS; LIMITING VALUES; CP INVARIANCE; PARTICLE PRODUCTION; GAUGE INVARIANCE; COUPLING CONSTANTS; DIPOLE MOMENTS; QUADRUPOLE MOMENTS; FORM FACTORS; PARTICLE IDENTIFICATION

Citation Formats

Abachi, S, and D0 Collaboration. Limits on the anomalous ZZ{gamma} and Z{gamma}{gamma} couplings in p{anti p} collisions at {radical}s = 1.8 TeV. United States: N. p., 1995. Web.
Abachi, S, & D0 Collaboration. Limits on the anomalous ZZ{gamma} and Z{gamma}{gamma} couplings in p{anti p} collisions at {radical}s = 1.8 TeV. United States.
Abachi, S, and D0 Collaboration. Sat . "Limits on the anomalous ZZ{gamma} and Z{gamma}{gamma} couplings in p{anti p} collisions at {radical}s = 1.8 TeV". United States. https://www.osti.gov/servlets/purl/106574.
@article{osti_106574,
title = {Limits on the anomalous ZZ{gamma} and Z{gamma}{gamma} couplings in p{anti p} collisions at {radical}s = 1.8 TeV},
author = {Abachi, S and D0 Collaboration},
abstractNote = {The authors performed a direct search for the anomalous ZZ{gamma} and Z{gamma}{gamma} couplings by studying p{anti p} {yields} {ell}{ell}{gamma} + X, ({ell} = e, {mu}) events at {radical}s = 1.8 TeV with the D0 detector at the Fermilab Tevatron Collider. A fit to the transverse energy spectrum of the photon in the signal events, based on the data set corresponding to an integrated luminosity of 14.3 pb{sup {minus}1} (13.7 pb{sup {minus}1}) for the electron (muon) channel, yields the following 95% confidence level limits on the anomalous CP-conserving ZZ{gamma} couplings: {vert_bar}h{sub 30}{sup Z}{vert_bar} < 1.8 (h{sub 40}{sup Z} = 0), and {vert_bar}h{sub 40}{sup Z}{vert_bar} < 0.5 (h{sub 30}{sup Z} = 0), for a form-factor scale {Lambda} = 500 GeV. Limits for the Z{gamma}{gamma} couplings and CP-violating couplings are also discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {7}
}

Conference:
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