Study Z gamma events and limits on anomalous ZZ gamma and Z gamma gamma couplings in pp(-) collisions at root s=1.96 Tev
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Issue Date
2005-07Author
Baringer, Philip S.
Bean, Alice
Christofek, L.
Coppage, Don
Gardner, J.
Hensel, Carsten
Jabeen, S.
Wilson, Graham Wallace
Publisher
AMERICAN PHYSICAL SOC
Type
Article
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We present a measurement of the Z gamma production cross section and limits on anomalous ZZ gamma and Z gamma gamma couplings for form-factor scales of Lambda=750 and 1000 GeV. The measurement is based on 138 (152) candidates in the ee gamma (mu mu gamma) final state using 320(290) pb(-1) of p (p) over bar collisions at root s=1.96 TeV. The 95% C.L. limits on real and imaginary parts of individual anomalous couplings are vertical bar h(10,30)(Z)vertical bar < 0.23, vertical bar h(20,40)(Z)vertical bar < 0.020, vertical bar h(10,30)(gamma)vertical bar < 0.23, and vertical bar h(20,40)(gamma)vertical bar < 0.019 for Lambda=1000 GeV.
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Citation
Abazov, VM; Abbott, B, et al. Study Z gamma events and limits on anomalous ZZ gamma and Z gamma gamma couplings in pp(-) collisions at root s=1.96 Tev. PHYSICAL REVIEW LETTERS. July 2005. 95(5)
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