Near-threshold deuteron photodisintegration: An indirect determination of the Gerasimov-Drell-Hearn sum rule and forward spin polarizability ({gamma}{sub 0}) for the deuteron at low energies
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics, Duke University, Durham, North Carolina 27708 (United States) and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-90308 (United States)
It is shown that a measurement of the analyzing power obtained with linearly polarized {gamma}-rays and an unpolarized target can provide an indirect determination of two physical quantities. These are the Gerasimov-Drell-Hearn (GDH) sum rule integrand for the deuteron and the sum rule integrand for the forward spin polarizability ({gamma}{sub 0}) near photodisintegration threshold. An analysis of data for the d({gamma}-vector,n)p reaction and other experiments is presented. A fit to the world data analyzed in this manner gives a GDH integral value of -603{+-}43{mu}b between the photodisintegration threshold and 6 MeV. This result is the first confirmation of the large contribution of the {sup 1}S{sub 0}(M1) transition predicted for the deuteron near photodisintegration threshold. In addition, a sum rule value of 3.75{+-}0.18 fm{sup 4} for {gamma}{sub 0} is obtained between photodisintegration threshold and 6 MeV. This is a first indirect confirmation of the leading-order effective field theory prediction for the forward spin-polarizability of the deuteron.
- OSTI ID:
- 21189895
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 77; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Incompatibility of multipole predictions for the nucleon spin-polarizability and Drell-Hearn-Gerasimov sum rules
First Measurement of the Gerasimov-Drell-Hearn Integral for H
Contribution of single pion electroproduction to the generalized Gerasimov-Drell-Hearn sum rule for the deuteron
Journal Article
·
Wed Nov 30 23:00:00 EST 1994
· Physical Review, D (Particles Fields); (United States)
·
OSTI ID:7098038
First Measurement of the Gerasimov-Drell-Hearn Integral for H
Journal Article
·
Mon Jul 09 00:00:00 EDT 2001
· Physical Review Letters
·
OSTI ID:40276953
Contribution of single pion electroproduction to the generalized Gerasimov-Drell-Hearn sum rule for the deuteron
Journal Article
·
Wed Jul 15 00:00:00 EDT 2009
· Physical Review. C, Nuclear Physics
·
OSTI ID:21289969