Vector boson pair production and trilinear gauge boson couplings - Results from the Tevatron

Conference · Thu Oct 01 04:00:00 EDT 1998

OSTI ID:2050

Diehl, H T ^[1]

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1. Fermilab

Direct measurements of vector boson pair production processes and trilinear gauge boson couplings have been conducted by the CDF and D0 Collaborations. Preliminary results from searches for anomalous WW/WZ {yields} {mu}{nu} jet jet and WZ {yields} eee{nu} production are presented. 95% CL anomalous coupling limits from previously published D0 results are -0.20< {lambda} < 0.20 ({Delta}{kappa} = 0) and -3.0<{Delta}{kappa} < 0:43 ({lambda} = 0) for {Lambda} = 2000 GeV where the WW{gamma} couplings are assumed to equal the WWZ couplings. Combined D0 + LEP experiment anomalous coupling limits are presented for the rst time. 95% CL limits are -0.16 < {lambda}{sub {gamma}} < 0:10 ({Delta}{kappa} = 0) and -0.15< {Delta}{kappa}{sub {gamma}} < 0:41 ({lambda} = 0) under the assumption that the couplings are related by the \HISZ" constraints. 95% CL anomalous ZZ{gamma} and Z{gamma}{gamma} coupling limits from D0 are jh{sup Z}{sub 30} j < 0:36 (h{sup Z}{sub 40 = 0) and jh{sup Z}{sub 40} j < 0:05 (h{sup Z}{sub 30} = 0) for {Lambda} = 750 GeV. CDF reports the first observation of a ZZ event. Prospects for Run II are discussed.

• Research Organization: Fermi National Accelerator Laboratory, Batavia, IL
• Sponsoring Organization: USDOE Office of Energy Research (ER)
• OSTI ID: 2050
• Report Number(s): FERMILAB-Conf-98/303-E; ON: DE00002050
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
Coupling
Fermilab Tevatron
Intermediate Vector Bosons
Pair Production