Probing Dark Forces and Light Hidden Sectors at Low-Energy e+e- Colliders
Mar, 200942 pages
Published in:
- Phys.Rev.D 80 (2009) 015003
e-Print:
- 0903.3941 [hep-ph]
Report number:
- SLAC-PUB-13561,
- SU-ITP-09-12
Citations per year
Abstract: (arXiv)
A dark sector -- a new non-Abelian gauge group Higgsed or confined near the GeV scale -- can be spectacularly probed in low-energy e+e- collisions. A low-mass dark sector can explain the annual modulation signal reported by DAMA/LIBRA and the PAMELA, ATIC, and INTEGRAL observations by generating small mass splittings and new interactions for weak-scale dark matter. Some of these observations may be the first signs of a low-mass dark sector that collider searches can definitively confirm. Production and decay of O(GeV)-mass dark states is mediated by a Higgsed Abelian gauge boson that mixes kinetically with hypercharge. Existing data from BaBar, BELLE, CLEO-c, and KLOE may contain thousands of striking dark-sector events with a high multiplicity of leptons that reconstruct mass resonances and possibly displaced vertices. We discuss the production and decay phenomenology of Higgsed and confined dark sectors and propose e+e- collider search strategies. We also use the DAMA/LIBRA signal to estimate the production cross-sections and decay lifetimes for dark-sector states.- 13.66.Hk
- 14.80.-j
- 95.35.+d
- 12.60.-i
- dark matter: mass
- dark matter: electroproduction
- lepton: multiplicity
- gauge boson: abelian
- resonance: mass
- new interaction
References(0)
Figures(29)
Loading ...