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Title: Proton Polarization Angular Distribution in Deuteron Photo-Disintegration

Abstract

The apparent scaling in 90 cm deuteron photodisintegration, first observed several years ago at SLAC, has lead to several related experiments and a number ot theoretical calculations.We have in the past year measured in Hall A, with up to 2.5-GeV photons, cross sections at large angles and the proton polarization at 90cm.Verypreliminary online analysis of the induced polarizations yields the very surprising result that theinduced polarizations apparently vanish starting at about the same energy at whichthe existing cross section data start to scale, to follow the constituent countingrules.Given this result, we propose further measurements to see if this observationholds at other angles.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
954613
Report Number(s):
JLAB-PR-00-007
TRN: US201014%%1189
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ANGULAR DISTRIBUTION; CROSS SECTIONS; DEUTERONS; PHOTONS; PHOTONUCLEAR REACTIONS; POLARIZATION; PROTONS; STANFORD LINEAR ACCELERATOR CENTER

Citation Formats

Sarty, Adam, Fox, Brendan, Meekins, David, Margaziotis, Demetrius, Kinney, Edward, Garibaldi, Franco, Gao, Juncai, Aniol, Konrad, Epstein, Martin, Amaryan, Moscov, Amaryan, Moskov, Markowitz, Pete, Bosted, Peter, Roche, Rikki, Gilman, Ronald, Frullani, Salvatore, and Churchwell, Steve. Proton Polarization Angular Distribution in Deuteron Photo-Disintegration. United States: N. p., 1999. Web. doi:10.2172/954613.
Sarty, Adam, Fox, Brendan, Meekins, David, Margaziotis, Demetrius, Kinney, Edward, Garibaldi, Franco, Gao, Juncai, Aniol, Konrad, Epstein, Martin, Amaryan, Moscov, Amaryan, Moskov, Markowitz, Pete, Bosted, Peter, Roche, Rikki, Gilman, Ronald, Frullani, Salvatore, & Churchwell, Steve. Proton Polarization Angular Distribution in Deuteron Photo-Disintegration. United States. https://doi.org/10.2172/954613
Sarty, Adam, Fox, Brendan, Meekins, David, Margaziotis, Demetrius, Kinney, Edward, Garibaldi, Franco, Gao, Juncai, Aniol, Konrad, Epstein, Martin, Amaryan, Moscov, Amaryan, Moskov, Markowitz, Pete, Bosted, Peter, Roche, Rikki, Gilman, Ronald, Frullani, Salvatore, and Churchwell, Steve. 1999. "Proton Polarization Angular Distribution in Deuteron Photo-Disintegration". United States. https://doi.org/10.2172/954613. https://www.osti.gov/servlets/purl/954613.
@article{osti_954613,
title = {Proton Polarization Angular Distribution in Deuteron Photo-Disintegration},
author = {Sarty, Adam and Fox, Brendan and Meekins, David and Margaziotis, Demetrius and Kinney, Edward and Garibaldi, Franco and Gao, Juncai and Aniol, Konrad and Epstein, Martin and Amaryan, Moscov and Amaryan, Moskov and Markowitz, Pete and Bosted, Peter and Roche, Rikki and Gilman, Ronald and Frullani, Salvatore and Churchwell, Steve},
abstractNote = {The apparent scaling in 90 cm deuteron photodisintegration, first observed several years ago at SLAC, has lead to several related experiments and a number ot theoretical calculations.We have in the past year measured in Hall A, with up to 2.5-GeV photons, cross sections at large angles and the proton polarization at 90cm.Verypreliminary online analysis of the induced polarizations yields the very surprising result that theinduced polarizations apparently vanish starting at about the same energy at whichthe existing cross section data start to scale, to follow the constituent countingrules.Given this result, we propose further measurements to see if this observationholds at other angles.},
doi = {10.2172/954613},
url = {https://www.osti.gov/biblio/954613}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 01 00:00:00 EST 1999},
month = {Wed Dec 01 00:00:00 EST 1999}
}