Perturbative QCD effects observed in 490 GeV deep-inelastic muon scattering

Journal Article · Wed Dec 01 04:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.5057· OSTI ID:5803126

Adams, M R; Aied, S; Anthony, P L; Baker, M D; Bartlett, J; Bhatti, A A; Braun, H M; Busza, W; Conrad, J M; Coutrakon, G; Davisson, R; Derado, I; Dhawan, S K; Dougherty, W; Dreyer, T; Dziunikowska, K; Eckardt, V; Ecker, U; Erdmann, M; Eskreys, A ; Figiel, J; Gebauer, H J; Geesaman, D F; Gilman, R; Green, M C; Haas, J; Halliwell, C; Hanlon, J; Hantke, D; Hughes, V W; Jackson, H E; Jaffe, D E; Jancso, G; Jansen, D M; Kaufman, S; Kennedy, R D; Kirk, T; Kobrak, H G.E.; Krzywdzinski, S; Kunori, S; Lord, J J; Lubatti, H J; McLeod, D; Magill, S; Malecki, P; Manz, A; Melanson, H; Michael, D G; Mohr, W; Montgomery, H E; Morfin, J G; Nickerson, R B; O'Day, S; Olkiewicz, K; Osborne, L; Papavassiliou, V; Pawlik, B; Pipkin, F M; Ramberg, E J; Roeser, A; Ryan, J J; Salgado, C W; Salvarani, A; Schellman, H; Schmitt, M; Schmitz, N; Schueler, K P; Skuja, A; Snow, G A; Soeldner-Rembold, S; Steinberg, P H; Stier, H E; Stopa, P; Swanso,

Results on forward charged hadrons in 490 GeV deep-inelastic muon scattering are presented. The transverse momenta, azimuthal asymmetry, and energy flow of events with four or more forward charged hadrons are studied. The range of the invariant hadronic mass squared 300[lt][ital W][sup 2][lt]900 GeV[sup 2]/[ital c][sup 4] extends higher than previous deep-inelastic muon scattering experiments. Data are compared to the predictions of the Lund Monte Carlo model with perturbative QCD simulated by matrix elements, parton showers, and color dipole radiation. All of the QCD-based models are consistent with the data while a model without QCD processes is not. Correlations with the multiplicity-independent event variable [Pi][congruent][summation][vert bar][ital p][sub [ital T]][vert bar] are studied. The relationship between the azimuthal asymmetry and transverse momentum of forward hadrons is also presented. The data are most consistent with intrinsic parton transverse momentum squared [ital k][sub [ital T]][sup 2] of 0.25 GeV[sup 2]/[ital c][sup 2].

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5803126
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:11; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662330* -- Photon & Charged-Lepton Interactions with Hadrons-- (1992)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CALCULATION METHODS
COMPOSITE MODELS
CORRECTIONS
DEEP INELASTIC SCATTERING
ENERGY RANGE
FIELD THEORIES
GEV RANGE
GEV RANGE 100-1000
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MONTE CARLO METHOD
MULTIPLICITY
MUON-DEUTERON INTERACTIONS
MUON-NUCLEON INTERACTIONS
MUON-PROTON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTON MODEL
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SCATTERING
TRANSVERSE MOMENTUM