| DATE: |
2009-10-06 16:00 - 17:00 |
| PLACE: |
Kenkyu Honkan 3F Rm. 322 |
| TITLE: |
Quark fragmentation to pions in the NJL-jet model |
| CONTACT: |
YASUI Shigehiro / yasuis AT post.kek.jp |
| SPEAKER: |
Prof. Wolfgang Bentz (Tokai Univseristy) |
| LANGUAGE: |
English |
| ABSTRACT: |
A description of fragmentation functions which satisfy the momentum and isospin
sum rules is presented in the Nambu-Jona-Lasinio model. Concentrating on the pion
fragmentation function, take into account cascade-like processes in a generalized
jet-model approach, and show that the momentum and isospin sum rules can be
satisfied naturally without introduction of ad hoc parameters. The comparison with
empirical fragmentation functions shows that the NJL-jet model is a very useful
framework to describe semi-inclusive hard scattering processes. |
