Preliminary Results on the Experimental Investigation of the Structure Functions of Bound Nucleons

Conference · Mon Aug 01 00:00:00 EDT 2016

OSTI ID:1332088

Bodek, Arie ^[1]

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1. Univ. of Rochester, NY (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

We present preliminary results on an experimental study of the nuclear modification of the longitudinal ($$\sigma_L$$) and transverse ($$\sigma_T$$) structure functions of nucleons bound in nuclear targets. The origin of these modifications (commonly referred as as the EMC effect) is not fully understood. Our measurements of R= $$\sigma_L / \sigma_T$$ for nuclei ($$R_A$$) and for deuterium ($$R_D$$) indicate that nuclear modifications of the structure functions of bound nucleons are different for the longitudinal and transverse structure functions, and that contrary to expectation from several theoretical models, $$R_A< R_D$$.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1332088
• Report Number(s): JLAB-PHY-15-2161; DOE/OR/23177-3992; arXiv:1507.04967
• Resource Relation: Conference: CIPANP 2015, Vail, CO, May 19-24, 2015
• Country of Publication: United States
• Language: English