Erlangen 2022 – scientific programme
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A: Fachverband Atomphysik
A 9: Collisions, scattering and correlation phenomena
A 9.2: Poster
Tuesday, March 15, 2022, 16:30–18:30, P
Charge-exchange three-body reaction with participation of stau τ — •Renat A. Sultanov — Odessa College, Department of Mathematics, 201 W. University Blvd., Odessa, Texas 79764, USA
We report computational results for a few-body charge-exchange reaction with participation of heavy, long-lived, SUSY supersymmetric particle stau τ (or tau slepton) [1]. Specifically, the cross sections and rates are computed for the following three-body reaction:
| (pX−) + 4He++ → (4He++X−) + p, (1) |
where p is a proton, 4He++ is a helium nucleus and X− is stau. The mass of X− is ∼125 GeV [1]. Stau is a supersymmetric partner of τ-lepton. The quasi-stable negatively charged NLSP (next-to-lightest supersymmetric particle) X− can make Coulomb bound states with nuclei and severely affect the early Big Bang Nucleosynthesis (BBN) era nuclear reactions [2,3]. A detailed few-body approach based on a modified Faddeev-Hahn-type equation formalism [4] is applied to the charge-transfer reaction (1) in this work.
1. CMS Collaboration, Eur. Phys. J. C 80:189 (2020).
2. M. Pospelov, Phys. Rev. Lett. 98, 231301 (2007).
3. K. Hamaguchi, T. Hatsuda, M. Kamimura, Y. Kino, T. T. Yanagida, Phys. Lett. B 650 268 (2007).
4. R. A. Sultanov and S. K. Adhikari, J. Phys. B 32, 5751 (1999).