Spin Sum Rules at Low Q2

Conference · Tue Dec 01 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3293883· OSTI ID:980893

Chen, Jian-Ping

Recent precision spin-structure data from Jefferson Lab have significantly advanced our knowledge of nucleon structure at low Q2. Results on the neutron spin sum rules and polarizabilities in the low to intermediate Q2 region are presented. The Burkhardt-Cuttingham Sum Rule was verified within experimental uncertainties. When comparing with theoretical calculations, results on spin polarizability show surprising disagreements with Chiral Perturbation Theory predictions. Preliminary results on first moments at very low Q2 are also presented.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 980893
• Report Number(s): JLAB-PHY-09-1023; DOE/OR/23177-0861; TRN: US1003958
• Journal Information: AIP Conference Proceedings, Vol. 1182; Conference: CIPANP 2009: 10th Conference on the Intersections of Particle and Nuclear Physics, San Diego, California, 26-31 May 2009
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
CALIFORNIA
DATA
MEETINGS
NEUTRONS
NUCLEAR PHYSICS
NUCLEONS
PARTICLES
PERTURBATION THEORY
POLARIZABILITY
SPIN
SUM RULES