Izlaganje sa skupa

Few-body physics with real photons at TAGX

Koichi Maruyama ; Center for Nuclear Study, University of Tokyo, Midoricho, Tanashi, Tokyo 188-0002, Japan

Sažetak

The proton-neutron (pn) pairs in light nuclei such as 3He, 4He, and 6Li have been investigated with the photon beam from the 1.3-GeV Tokyo Electron Synchrotron. Photodisintegration of the nuclei has been measured in the ∆-resonance region with the large-acceptance spectrometer TAGX. The strengths of the photon absorption by the pn-pairs vary depending on nuclei and on the photon energy. The pair in 3He is found to be three-times more active than the deuteron in absorbing the photon. The photon absorption cross sections by the pn-pairs in 4He show a jump at the pion-production threshold. The total cross sections for five 4He-breakup channels including new data are illustrated.

Ključne riječi

photodisintegration; photon absorption; 3He; 4He; pn-pair; ∆-resonance

Hrčak ID:

305303

URI

https://hrcak.srce.hr/305303

Datum izdavanja:

1.3.1999.

Podaci na drugim jezicima: hrvatski

Posjeta: 102 *