Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace:

The width of the omega meson in the nuclear medium
Ramos Gómez, Àngels; Tolós Rigueiro, Laura; Molina, R.; Oset Baguena, Eulogio
Universitat de Barcelona
We evaluate the width of the ω meson in nuclear matter. We consider the free decay mode of the ω into three pions, which is dominated by ρπ decay, and replace the ρ and π propagators by their medium-modified ones. We also take into account the quasielastic and inelastic processes induced by a vector-baryon interaction dominated by vector meson exchange, as well as the contributions coming from the ω→KK¯ mechanism with medium-modified K , K¯ propagators. We obtain a substantial increase of the ω width in the medium, reaching a value of 121 ± 10 MeV at normal nuclear matter density for an ω at rest, which comes mainly from ωN → ππN, ωNN → πNN processes associated to the dominant ω → ρπ decay mode. The value of the width increases moderately with momentum, reaching values of around 200MeV at 600MeV/c.
Mesons (Física nuclear)
Estructura nuclear
Física nuclear
Mesons (Nuclear physics)
Nuclear structure
Nuclear physics
(c) Società Italiana di Fisica & Springer Verlag, 2013
Società Italiana di Fisica & Springer Verlag

Mostrar el registro completo del ítem

Documentos relacionados

Otros documentos del mismo autor/a

Tolós Rigueiro, Laura; Molina, R.; Oset Baguena, Eulogio; Ramos Gómez, Àngels
Oset Baguena, Eulogio; Liang, Wei-Hong; Bayar, Melahat; Xie, Ju-Jun; Dai, Lian Rong; Albaladejo, Miguel; Nielsen, Marina; Sekihara, Takayasu; Navarra, Fernando; Roca, L.; Mai, Maxim; Nieves, J.; Morais Dias, Jorgivan; Feijoo, Alberto; Magas, V. K.; Ramos Gómez, Àngels; Miyahara, Kenta; Hyodo, Tetsuo; Jido, Daisuke; Döring, Michael; Molina, R.; Chen, Hua-Xing; Wang, En; Geng, Lisheng; Ikeno, Natsumi; Fernández-Soler, Pedro; Sun, Zhi Feng
Tolós Rigueiro, Laura; Ramos Gómez, Àngels; Oset Baguena, Eulogio
Tolos, L.; Molina, R.; Oset, E.; Ramos Gómez, Àngels
Oset, E.; Ramos Gómez, Àngels; Garzon, E. J.; Molina, R.; Tolos, L.; Xiao, C. W.; Wu, J. J.; Zou, B. S.