Multiple preequilibrium emission in Feshbach-Kerman-Koonin analyses

M. B. Chadwick, P. G. Young, D. C. George, Yukinobu Watanabe

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

We describe how multiple preequilibrium emission can be included in the Feshbach-Kerman-Koonin (FKK) theory. By analyzing (p,xn) and (p,xp) reactions on zirconium, at incident energies of 80 and 160 MeV, the importance of multiple preequilibrium emission can be clearly seen. This mechanism accounts for much of the emission spectra and its importance extends to relatively high emission energies. We show that multiple preequilibrium must be included in FKK analyses at these incident energies in order to simultaneously satisfy unitarity and account for inclusive nucleon emission spectra. The importance of multistep processes is reduced in comparison to analyses which omit multiple preequilibrium. Our calculated angular distributions account for measurements except at the highest backward angles, where we underpredict the data. We compare our results with other analyses at these energies.

Original languageEnglish
Pages (from-to)996-1005
Number of pages10
JournalPhysical Review C
Volume50
Issue number2
DOIs
Publication statusPublished - Jan 1 1994

Fingerprint

emission spectra
energy
angular distribution

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Multiple preequilibrium emission in Feshbach-Kerman-Koonin analyses. / Chadwick, M. B.; Young, P. G.; George, D. C.; Watanabe, Yukinobu.

In: Physical Review C, Vol. 50, No. 2, 01.01.1994, p. 996-1005.

Research output: Contribution to journalArticle

Chadwick, M. B. ; Young, P. G. ; George, D. C. ; Watanabe, Yukinobu. / Multiple preequilibrium emission in Feshbach-Kerman-Koonin analyses. In: Physical Review C. 1994 ; Vol. 50, No. 2. pp. 996-1005.
@article{2cd311ad5bdf4776af55bf9747665d54,
title = "Multiple preequilibrium emission in Feshbach-Kerman-Koonin analyses",
abstract = "We describe how multiple preequilibrium emission can be included in the Feshbach-Kerman-Koonin (FKK) theory. By analyzing (p,xn) and (p,xp) reactions on zirconium, at incident energies of 80 and 160 MeV, the importance of multiple preequilibrium emission can be clearly seen. This mechanism accounts for much of the emission spectra and its importance extends to relatively high emission energies. We show that multiple preequilibrium must be included in FKK analyses at these incident energies in order to simultaneously satisfy unitarity and account for inclusive nucleon emission spectra. The importance of multistep processes is reduced in comparison to analyses which omit multiple preequilibrium. Our calculated angular distributions account for measurements except at the highest backward angles, where we underpredict the data. We compare our results with other analyses at these energies.",
author = "Chadwick, {M. B.} and Young, {P. G.} and George, {D. C.} and Yukinobu Watanabe",
year = "1994",
month = "1",
day = "1",
doi = "10.1103/PhysRevC.50.996",
language = "English",
volume = "50",
pages = "996--1005",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "2",

}

TY - JOUR

T1 - Multiple preequilibrium emission in Feshbach-Kerman-Koonin analyses

AU - Chadwick, M. B.

AU - Young, P. G.

AU - George, D. C.

AU - Watanabe, Yukinobu

PY - 1994/1/1

Y1 - 1994/1/1

N2 - We describe how multiple preequilibrium emission can be included in the Feshbach-Kerman-Koonin (FKK) theory. By analyzing (p,xn) and (p,xp) reactions on zirconium, at incident energies of 80 and 160 MeV, the importance of multiple preequilibrium emission can be clearly seen. This mechanism accounts for much of the emission spectra and its importance extends to relatively high emission energies. We show that multiple preequilibrium must be included in FKK analyses at these incident energies in order to simultaneously satisfy unitarity and account for inclusive nucleon emission spectra. The importance of multistep processes is reduced in comparison to analyses which omit multiple preequilibrium. Our calculated angular distributions account for measurements except at the highest backward angles, where we underpredict the data. We compare our results with other analyses at these energies.

AB - We describe how multiple preequilibrium emission can be included in the Feshbach-Kerman-Koonin (FKK) theory. By analyzing (p,xn) and (p,xp) reactions on zirconium, at incident energies of 80 and 160 MeV, the importance of multiple preequilibrium emission can be clearly seen. This mechanism accounts for much of the emission spectra and its importance extends to relatively high emission energies. We show that multiple preequilibrium must be included in FKK analyses at these incident energies in order to simultaneously satisfy unitarity and account for inclusive nucleon emission spectra. The importance of multistep processes is reduced in comparison to analyses which omit multiple preequilibrium. Our calculated angular distributions account for measurements except at the highest backward angles, where we underpredict the data. We compare our results with other analyses at these energies.

UR - http://www.scopus.com/inward/record.url?scp=34548835264&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548835264&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.50.996

DO - 10.1103/PhysRevC.50.996

M3 - Article

AN - SCOPUS:34548835264

VL - 50

SP - 996

EP - 1005

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 2

ER -