Higher Twists and Color Polarizabilities in the Neutron

Journal Article · Sat May 01 00:00:00 EDT 2004

OSTI ID:823589

Meziani, Zein-Eddine; Melnitchouk, Wolodymyr; Chen, Jian-Ping; Choi, Seonho; Averett, Todd; Cates, Gordon; Jager, Cornelis de; Deur, Alexandre; Gao, Haiyan; Garibaldi, Franco; Gilman, Ronald; Hughes, Emlyn; Jiang, Xiaodong; Korsch, Wolfgang; Kramer, Kevin; Liyanage, Nilanga; Slifer, Karl; Yang, Jae-Choon

Color polarizabilities of the neutron are extracted from data on the lowest moment of the spin-dependent g1 structure function. New data in the resonance region from Jefferson Lab at Q{sup 2} <{approx} 1 GeV{sup 2}, in combination with world data at higher Q{sup 2}, allow a systematic determination of the 1/Q{sup 2} corrections, and provide the first constraints on 1/Q{sup 4} corrections. The results suggest that higher-twist effects in the neutron are surprisingly small, and that quark-hadron duality may be approximately valid, even down to Q{sup 2} {approx} 0.5 GeV{sup 2}.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 823589
• Report Number(s): JLAB-PHY-04-10; DOE/ER/40150-2659; hep-ph/0404066; TRN: US0401770
• Resource Relation: Other Information: No journal information given for this preprint; PBD: 1 May 2004
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COLOR
DUALITY
NEUTRONS
RESONANCE
STRUCTURE FUNCTIONS