| Full text | |
| Author(s): |
Total Authors: 4
|
| Affiliation: | [1] Univ Fed Bahia, Inst Fis, Campus Ondina, BR-40170115 Salvador, BA - Brazil
[2] Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo, SP - Brazil
[3] Univ Paris Saclay, CNRS, CEA, Inst Phys Theor, F-91191 Gif Sur Yvette - France
[4] Stanford Univ, SLAC Nacl Acelerator Lab, Stanford, CA 94309 - USA
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | EUROPEAN PHYSICAL JOURNAL C; v. 78, n. 9 SEP 19 2018. |
| Web of Science Citations: | 1 |
| Abstract | |
In this work we investigate the Z(b)(10610) (called simply Z(b)) abundance in the hot hadron gas produced in heavy ion collisions after the quark-gluon plasma phase. We use effective Lagrangians to calculate the thermally averaged cross sections of Z(b) production in processes such as B-({*}()) + (B) over bar ((){*}()) -> pi + Z(b)(10610) and also of its absorption in the corresponding inverse processes. We then solve the rate equation to follow the time evolution of the Z(b) multiplicity. We find that, if we neglect the Z(b) decay, the number of Z(b)'s produced at the end of the quark-gluon plasma phase remains almost constant during the hadron phase. The introduction of the decay in the rate equation leads to a suppression in the final yield by a factor two. (AU) | |
| FAPESP's process: | 17/07278-5 - Exotic states from an effective hadron dynamics from superconformal algebra |
| Grantee: | Marina Nielsen |
| Support Opportunities: | Scholarships abroad - Research |
| FAPESP's process: | 12/50984-4 - Hadron Physics |
| Grantee: | Fernando Silveira Navarra |
| Support Opportunities: | Research Projects - Thematic Grants |