New cross sections for the reaction e p-->e p eta are reported for total center of mass energy W = 1.5--1.86 GeV and invariant momentum transfer Q2 = 0.25--1.5 (GeV/c)(2). This large kinematic range allows extraction of important new information about response functions, photocouplings, and eta N coupling strengths of baryon resonances. Newly observed structure at W approximately 1.65 GeV is shown to come from interference between S and P waves and can be interpreted with known resonances. Improved values are derived for the photon coupling amplitude for the S11(1535) resonance.

Thompson, R

Dytman, S

Kim, KY

Mueller, J

Adams, GS

Amaryan, MJ

Anciant, E

Anghinolfi, M

Asavapibhop, B

Auger, T

Audit, G

Avakian, H

Barrow, S

Battaglieri, M

Beard, K

Bektasoglu, M

Bertozzi, W

Bianchi, N

Biselli, A

Boiarinov, S

Bonner, BE

Briscoe, WJ

Brooks, W

Burkert, VD

Calarco, JR

Capitani, G

Carman, DS

Carnahan, B

Cole, PL

Coleman, A

Connelly, J

Cords, D

Corvisiero, P

Crabb, D

Crannell, H

Cummings, J

Day, D

Degtyarenko, PV

Demirchyan, RA

Dennis, LC

Deppman, A

De Sanctis, E

De Vita, R

Dhuga, KS

Djalali, C

Dodge, GE

Doughty, D

Dragovitsch, P

Dugger, M

Eckhause, M

Efremenko, YV

Egiyan, H

Egiyan, KS

Elouadrhiri, L

Farhi, L

Feuerbach, RJ

Ficenec, J

Fissum, K

Freyberger, A

Funsten, H

Gai, M

Gavrilov, VB

Gilfoyle, GP

Giovanetti, K

Gilad, S

Girard, P

Griffioen, KA

Guidal, M

Guillo, M

Gyurjyan, V

Hancock, D

Hardie, J

Heddle, D

Heisenberg, J

Hersman, FW

Hicks, K

Hicks, RS

Holtrop, Maurik

Hyde-Wright, CE

Ito, MM

Jenkins, D

Joo, K

Kane, J

Khandaker, M

Kim, W

Klein, A

Klein, FJ

Klusman, M

Kossov, M

Kuhn, SE

Kuang, Y

Laget, JM

Lawrence, D

Leskin, GA

Longhi, A

Loukachine, K

Lucas, M

Magahiz, R

Major, RW

Manak, JJ

Marchand, C

Matthews, SK

McAleer, S

McCarthy, J

McNabb, JW

Mecking, BA

Mestayer, MD

Meyer, CA

Minehart, R

Mirazita, M

Miskimen, R

Muccifora, V

Mutchler, GS

Napolitano, J

Niyazov, RA

Ohandjanyan, MS

O'Brien, JT

Opper, A

Patois, Y

Peterson, GA

Philips, S

Pivnyuk, N

Pocanic, D

Pogorelko, O

Polli, E

Preedom, BM

Price, JW

Qin, LM

Raue, BA

Reolon, AR

Riccardi, G

Ricco, G

Ripani, M

Ritchie, BG

Ronchetti, F

Rossi, P

Roudot, F

Rowntree, D

Rubin, PD

Salgado, CW

Sanzone, M

Sapunenko, V

Sarty, A

Sargsyan, M

Schumacher, RA

Shafi, A

Sharabian, YG

Shaw, J

Shuvalov, SM

Skabelin, A

Smith, T

Smith, C

Smith, ES

Sober, DI

Spraker, M

Stepanyan, S

Stoler, P

Taiuti, M

Taylor, S

Tedeschi, D

Tung, TY

Vineyard, MF

Vlassov, A

Weller, H

Weinstein, LB

Welsh, R

Weygand, DP

Whisnant, S

Witkowski, M

Wolin, E

Yegneswaran, A

Yun, J

Zhou, Z

Zhao, J

CLAS Collaboration

published 

February 26, 2001

General Physics

Physical Review Letters  Journal