Nuclear dilepton production of Drell-Yan process in the constituent quark model

Journal Article · Mon Apr 01 04:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.43.1996· OSTI ID:5607519

Zhu, W ^[1]; Shen, J G ^[2]

---

1. Department of Physics, East China Normal University, Shanghai 200062, People's Republic of China (CN)
2. Institute of Nuclear Research, Academia Sinica, P. O. Box 800-204, Shanghai 201800, People's Republic of China (CN)

The high-mass dilepton production on nuclear targets observed by the E772 Collaboration is analyzed by the constituent quark model. We show that the constituent quark model even without the nuclear shadowing improvement agrees better with the existing data on nuclear targets not only in the inelastic-scattering process, but also in the Drell-Yan process. Further, the QCD improvement for the partonic shadowing model is made. It is found that both the {ital Q}{sup 2} dependence of the shadowing strength and the momentum loss due to the annihilation of the shadowed sea quarks evidently depress the distributions of nuclear sea components in the antishadowing region.

• OSTI ID: 5607519
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 43:4; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANNIHILATION
BASIC INTERACTIONS
BOUND STATE
COMPOSITE MODELS
DRELL MODEL
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
EMC EFFECT
FERMIONS
FIELD THEORIES
FUNCTIONS
INELASTIC SCATTERING
INTERACTIONS
LEPTONS
MATHEMATICAL MODELS
MATRIX ELEMENTS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTONS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM NUMBERS
QUARK MODEL
SCALING LAWS
SCATTERING
SHADOW EFFECT
STRUCTURE FUNCTIONS
WAVE FUNCTIONS