New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from (2)H, (3)He, (4)He, (9)Be and (12)C for 0.3 < x < 0.9, Q(2) approximately 3-6 GeV(2). These data represent the first measurement of the EMC effect for (3)He at large x and a significant improvement for (4)He. The data do not support previous A-dependent or density-dependent fits to the EMC effect and suggest that the nuclear dependence of the quark distributions may depend on the local nuclear environment.

Seely, J

Daniel, A

Gaskell, D

Arrington, J

Fomin, N

Solvignon, P

Asaturyan, R

Benmokhtar, F

Boeglin, W

Boillat, B

Bosted, P

Bruell, A

Bukhari, MHS

Christy, ME

Clasie, B

Connell, S

Dalton, MM

Day, D

Dunne, J

Dutta, D

El Fassi, L

Ent, R

Fenker, H

Filippone, BW

Gao, H

Hill, C

Holt, RJ

Horn, T

Hungerford, E

Jones, MK

Jourdan, J

Kalantarians, N

Keppel, CE

Kiselev, D

Kotulla, M

Lee, C

Lung, AF

Malace, S

Meekins, DG

Mertens, T

Mkrtchyan, H

Navasardyan, T

Niculescu, G

Niculescu, I

Nomura, H

Okayasu, Y

Opper, AK

Perdrisat, C

Potterveld, DH

Punjabi, V

Qian, X

Reimer, PE

Roche, J

Rodriguez, VM

Rondon, O

Schulte, E

Segbefia, E

Slifer, Karl

Smith, GR

Tadevosyan, V

Tajima, S

Tang, L

Testa, G

Trojer, R

Tvaskis, V

Vulcan, WF

Wesselmann, FR

Wood, SA

Wright, J

Yuan, L

Zheng, X

published 

November 13, 2009

General Physics

Physical Review Letters  Journal