Nuclear matter Ward identity and the theory of final-state interactions in inclusive and exclusive reactions

Journal Article · Fri Mar 01 00:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.43.1367· OSTI ID:6392729

Celenza, L S; Pantziris, A; Shakin, C M; Wang, H ^[1]

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1. Brooklyn College of the City University of New York, Brooklyn, New York (USA). Department of Physics Brooklyn College of the City University of New York, Brooklyn, New York (USA). Center for Nuclear Theory

We consider the response of a large nucleus, approximated by nuclear matter, to an electromagnetic probe at intermediate values of the momentum transfer, where nucleon knockout dominates the response. We discuss final-state interactions which may be included in the calculations of ({ital e},{ital e}{prime}) inclusive reactions or ({ital e},{ital e}{prime}{ital p}) reactions, for example. We remark that the standard method for performing these calculations is inconsistent and address the question of the magnitude of the corrections required. We extend the discussion of Bentz, Arima, Hyuga, Shimizu, and Yazaki, who considered the role of the Ward-Takahashi identity in the calculation of the electromagnetic response in nuclear matter, to higher values of the momentum transfer. We suggest specific vertex corrections which should provide a more consistent formalism. We find that these corrections may be small in the vicinity of the quasielastic peak. However, definitive estimates of the corrections suggested here will require rather complex calculations. (It is of interest to note that the vertex correction is complex when the energetics are such that nucleon knockout is possible.)

• OSTI ID: 6392729
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Vol. 43:3; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ELECTRON REACTIONS
KNOCK-OUT REACTIONS
NUCLEAR MATTER
WARD IDENTITY
ELECTROMAGNETIC INTERACTIONS
EXCLUSIVE INTERACTIONS
FINAL-STATE INTERACTIONS
GREEN FUNCTION
INCLUSIVE INTERACTIONS
BASIC INTERACTIONS
CHARGED-PARTICLE REACTIONS
DIRECT REACTIONS
FUNCTIONS
INTERACTIONS
LEPTON REACTIONS
MATTER
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
653003* - Nuclear Theory- Nuclear Reactions & Scattering
653002 - Nuclear Theory- Nuclear Matter