Angular distributions for (3,4)(Lambda)H bound states in the (3,4)He(e,e(')K+) reaction.
/ Authors
F. Dohrmann, A. Ahmidouch, C. Armstrong, J. Arrington, R. Asaturyan, S. Avery, K. Bailey, H. Bitao, H. Breuer, D. Brown
and 53 more authors
R. Carlini, J. Cha, N. Chant, E. Christy, A. Cochran, L. Cole, J. Crowder, S. Danagoulian, M. Elaasar, R. Ent, H. Fenker, Y. Fujii, L. Gan, K. Garrow, D. Geesaman, P. Guèye, K. Hafidi, W. Hinton, H. Juengst, C. Keppel, Y. Liang, J. Liu, A. Lung, D. Mack, P. Markowitz, J. Mitchell, T. Miyoshi, H. Mkrtchyan, S. Mtingwa, B. Mueller, G. Niculescu, I. Niculescu, D. Potterveld, B. Raue, P. Reimer, J. Reinhold, J. Roche, M. Sarsour, Y. Sato, R. Segel, A. Semenov, S. Stepanyan, V. Tadevosian, S. Tajima, L. Tang, A. Uzzle, S. Wood, H. Yamaguchi, C. Yan, L. Yuan, B. Zeidman, M. Zeier, B. Zihlmann
/ Abstract
The (3,4)(Lambda)H and (4)(Lambda)H hypernuclear bound states have been observed for the first time in kaon electroproduction on (3,4)He targets. The production cross sections have been determined at Q(2)=0.35 GeV2 and W=1.91 GeV. For either hypernucleus the nuclear form factor is determined by comparing the angular distribution of the (3,4)He(e,e(')K+)(3,4)(Lambda)H processes to the elementary cross section 1H(e,e K+)Lambda on the free proton, measured during the same experiment.
Journal: Physical review letters