| Published Articles | |
| Report number | arXiv:1702.00395 ; CERN-TH-2017-025 ; UDEM-GPP-TH-17-254 |
| Title | Hidden sector explanation of $B$-decay and cosmic ray anomalies |
| Related title | Hidden sector explanation of $B$-decay and cosmic ray anomalies |
| Author(s) | Cline, James M. (CERN ; McGill U.) ; Cornell, Jonathan M. (McGill U.) ; London, David (Montreal U.) ; Watanabe, Ryoutaro (Montreal U.) |
| Publication | 2017-05-19 |
| Imprint | 2017-02-01 |
| Number of pages | 16 |
| Note | 14 pages, 6 figures; v2: added references and remarks on CMB/BBN constraints; v3: expanded discussion of UV completion and CMB constraints; published version |
| In: | Phys. Rev. D 95 (2017) 095015 |
| DOI | 10.1103/PhysRevD.95.095015 |
| Subject category | astro-ph.HE ; Astrophysics and Astronomy ; hep-ph ; Particle Physics - Phenomenology |
| Abstract | There are presently several discrepancies in $b \to s \ell^+ \ell^-$ decays of $B$ mesons suggesting new physics coupling to $b$ quarks and leptons. We show that a $Z'$, with couplings to quarks and muons that can explain the $B$-decay anomalies, can also couple to dark matter in a way that is consistent with its relic abundance, direct detection limits, and hints of indirect detection. The latter include possible excess events in antiproton spectra recently observed by the AMS-02 experiment. We present two models, having a heavy (light) $Z'$ with $m_{Z'}\sim 600\,(12)\,$GeV and fermionic dark matter with mass $m_\chi \sim 50\,(2000)\,$GeV, producing excess antiprotons with energies of $\sim 10\, (300)\,$GeV. The first model is also compatible with fits for the galactic center GeV gamma-ray excess. |
| Copyright/License | arXiv nonexclusive-distrib. 1.0 Preprint: © 2016-2025 CERN (License: CC-BY-4.0) |
Corresponding record in: Inspire
Записът е създаден на 2017-02-09, последна промяна на 2023-03-12
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