Laboratory limits on the annihilation or decay of dark matter particles

by Prof. Carlos E. Yaguna (UPTC, Colombia)

Wednesday 20 Oct 2021, 10:00 → 12:00 Asia/Shanghai

Tsung-Dao Lee library/Fourth Floor-410 - 410# Meeting Room (Tsung-Dao Lee Library)

Abstract: 

 

Constraints on the indirect detection of dark matter are usually obtained from observations of astrophysical objects -- the Galactic Center, dwarf galaxies, M31, etc. Here we propose instead to look for the annihilation or decay of dark matter particles taking place inside detectors searching \emph{directly} for dark matter or in large neutrino experiments. We show that the data from XENON1T and Borexino set limits on the annihilation and decay rate of dark matter particles with masses in the keV to few MeV range. All relevant final states are considered: annihilation into γγ and e−e+, and decays into γγ, γν and e−e+. The expected sensitivities in XENONnT, DARWIN, JUNO and THEIA are also computed. Though weaker than current astrophysical bounds, the laboratory limits (and projections) obtained are free from the usual astrophysical uncertainties associated with J-factors and unknown backgrounds, and may thus offer a complementary probe of the dark matter properties. We point out that current and future (astro)particle physics detectors might also be used to set analogous limits for different decays and dark matter masses above a few MeV.

 

Biography

2017-present  JUNIOR, UPTC, Tunja

2015-2017     POSTDOC, Heidelberg, Max Planck Inst.

2011-2015      POSTDOC, Munster U., ITP

2008-2011      POSTDOC, Madrid, Autonoma U.

2005-2007      POSTDOC, UCLA2002-2005PHD, SISSA, Trieste

 

Tencent information: https://cern.zoom.us/j/68118108195?pwd=YmxicExtUHFIS2ZId0IrYXprbmtCdz09 

ID:  681 1810 8195     Password: 617998

 

 

 

211020 (Yaguna @ DM+nu Forum) - Laboratory limits on the annihilation or decay of dark matter particles.pdf