Measurement of the {gamma} cross section at D0 using dimuons

Technical Report · Sat Jul 01 00:00:00 EDT 1995

DOI:https://doi.org/10.2172/102428· OSTI ID:102428

Abachi, S; Abbott, B; Abolins, M ^[1]

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1. and others

The D0 experiment has measured the {gamma} differential cross section in p{bar p} collisions at {radical}s = 1.8 TeV for {vert_bar}y{sup {gamma}}{vert_bar} < 0.7. We find the measured cross section to be a factor of five larger than the O({alpha}{sub s}{sup 3}) QCD prediction for p{sub T}{sup {gamma}} > 5 GeV/c.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); CEA, 75 - Paris (France); Russian Atomic Energy Commission, Moscow (Russian Federation); Ministry of Science and Technology Policy (Russian Federation); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Sao Paulo, SP (Brazil); Department of Atomic Energy, Bombay (India). Atomic Minerals Div.; Department of Science and Tech., New Delhi (India); Department of Education (India); Calciencias; Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico City (Mexico); Korea Ministry of Education (Korea)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 102428
• Report Number(s): FNAL/C-95/206-E; CONF-950705-3; ON: DE95015933; TRN: 95:020360
• Resource Relation: Conference: HEP 95: international Europhysics conference on high-energy physics, Brussels (Belgium), 27 Jul - 2 Aug 1995; Other Information: PBD: Jul 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHARMONIUM
PARTICLE PRODUCTION
DIFFERENTIAL CROSS SECTIONS
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
BRANCHING RATIO
EXPERIMENTAL DATA
MUON PAIRS