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Title: Two-body mechanisms in high momentum transfer processes on the trinucleon

Abstract

A breakdown of the Impulse Approximation is presented in pion photoproduction on {sup 3}He at high momentum transfers. The usual DWIA formalism with Faddeev wave functions which works well for small momentum transfers deviates from experimental measurements by up to two orders of magnitude of Q{sup 2} > 6fm{sup {minus}2}. It is found that the explicit inclusion of two-body mechanisms, where the photon is absorbed on one nucleon and the pion is emitted from another nucleon can restore agreement with the data.

Authors:
; ;  [1]
  1. and others
Publication Date:
OSTI Identifier:
374660
Report Number(s):
CONF-9304297-
Journal ID: BAPSA6; ISSN 0003-0503; TRN: 96:004080-0022
DOE Contract Number:  
FG05-86ER40270
Resource Type:
Journal Article
Journal Name:
Bulletin of the American Physical Society
Additional Journal Information:
Journal Volume: 40; Journal Issue: 2; Conference: 1993 joint meeting of the American Physical Society and the American Association of Physics Teachers, Washington, DC (United States), 12-15 Apr 1993; Other Information: PBD: Apr 1995
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; HELIUM 3 TARGET; PHOTONUCLEAR REACTIONS; PIONS; PHOTOPRODUCTION; DISTORTED WAVE THEORY

Citation Formats

Bennhold, C, Kamalov, S S, and Jinr, D. Two-body mechanisms in high momentum transfer processes on the trinucleon. United States: N. p., 1995. Web.
Bennhold, C, Kamalov, S S, & Jinr, D. Two-body mechanisms in high momentum transfer processes on the trinucleon. United States.
Bennhold, C, Kamalov, S S, and Jinr, D. Sat . "Two-body mechanisms in high momentum transfer processes on the trinucleon". United States.
@article{osti_374660,
title = {Two-body mechanisms in high momentum transfer processes on the trinucleon},
author = {Bennhold, C and Kamalov, S S and Jinr, D},
abstractNote = {A breakdown of the Impulse Approximation is presented in pion photoproduction on {sup 3}He at high momentum transfers. The usual DWIA formalism with Faddeev wave functions which works well for small momentum transfers deviates from experimental measurements by up to two orders of magnitude of Q{sup 2} > 6fm{sup {minus}2}. It is found that the explicit inclusion of two-body mechanisms, where the photon is absorbed on one nucleon and the pion is emitted from another nucleon can restore agreement with the data.},
doi = {},
journal = {Bulletin of the American Physical Society},
number = 2,
volume = 40,
place = {United States},
year = {1995},
month = {4}
}