scholarly journals Sub-GeV dark matter production at fixed-target experiments

2020 ◽  
Vol 102 (9) ◽  
Author(s):  
Asher Berlin ◽  
Patrick deNiverville ◽  
Adam Ritz ◽  
Philip Schuster ◽  
Natalia Toro
Keyword(s):  
Dark Matter ◽  
Fixed Target ◽  
Fixed Target Experiments ◽  
Matter Production

scholarly journals Non-minimal dark matter search in dark matter colliders

2018 ◽  
Vol 168 ◽  
pp. 06008
Author(s):  
Seodong Shin
Keyword(s):  
Dark Matter ◽  
Dark Sector ◽  
Fixed Target ◽  
Dark Matter Search ◽  
Fixed Target Experiments ◽  
Neutrino Scattering ◽  
Secondary Procedure ◽  
Neutrino Detectors ◽  
Detection Strategy ◽  
The Universe

In the scenarios of dark matter (DM) with a non-minimal dark sector, we revisit a new detection strategy of observing two or three simultaneous signals from inelastic scattering of a boosted DM [1]. The relativistically incoming DM can scatter off inelastically to a heavier unstable dark sector particle which decays back in to the DM associated with visible Standard Model particles inside large volume neutrino detectors. The existence of the secondary procedure renders us to separate it from conventional neutrino scattering background. The relativistically incoming DM can come from the universe by the annihilation of heavy DM component in an inelastic boosted DM scenario or produced by the beam bombardments in fixed target experiments.

scholarly journals Fully Geant4 compatible package for the simulation of Dark Matter in fixed target experiments

2021 ◽  
pp. 108129
Author(s):  
M. Bondi ◽  
A. Celentano ◽  
R.R. Dusaev ◽  
D.V. Kirpichnikov ◽  
M.M. Kirsanov ◽  
...  
Keyword(s):  
Dark Matter ◽  
Fixed Target ◽  
Fixed Target Experiments

scholarly journals Feebly-interacting particles: FIPs 2020 workshop report

2021 ◽  
Vol 81 (11) ◽  
Author(s):  
P. Agrawal ◽  
M. Bauer ◽  
J. Beacham ◽  
A. Berlin ◽  
A. Boyarsky ◽  
...  
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
New Physics ◽  
Experimental Results ◽  
Interacting Particles ◽  
Fixed Target ◽  
Fixed Target Experiments ◽  
Workshop Report ◽  
Beam Dump ◽  
Neutrino Experiments

AbstractWith the establishment and maturation of the experimental programs searching for new physics with sizeable couplings at the LHC, there is an increasing interest in the broader particle and astrophysics community for exploring the physics of light and feebly-interacting particles as a paradigm complementary to a New Physics sector at the TeV scale and beyond. FIPs 2020 has been the first workshop fully dedicated to the physics of feebly-interacting particles and was held virtually from 31 August to 4 September 2020. The workshop has gathered together experts from collider, beam dump, fixed target experiments, as well as from astrophysics, axions/ALPs searches, current/future neutrino experiments, and dark matter direct detection communities to discuss progress in experimental searches and underlying theory models for FIPs physics, and to enhance the cross-fertilisation across different fields. FIPs 2020 has been complemented by the topical workshop “Physics Beyond Colliders meets theory”, held at CERN from 7 June to 9 June 2020. This document presents the summary of the talks presented at the workshops and the outcome of the subsequent discussions held immediately after. It aims to provide a clear picture of this blooming field and proposes a few recommendations for the next round of experimental results.

scholarly journals Testing light dark matter coannihilation with fixed-target experiments

2017 ◽  
Vol 96 (5) ◽  
Author(s):  
Eder Izaguirre ◽  
Yonatan Kahn ◽  
Gordan Krnjaic ◽  
Matthew Moschella
Keyword(s):  
Dark Matter ◽  
Fixed Target ◽  
Fixed Target Experiments

scholarly journals Vector dark matter production from inflation with symmetry breaking

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
Borna Salehian ◽  
Mohammad Ali Gorji ◽  
Hassan Firouzjahi ◽  
Shinji Mukohyama
Keyword(s):  
Dark Matter ◽  
Symmetry Breaking ◽  
Matter Production

scholarly journals Dark matter freeze-in from semi-production

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Andrzej Hryczuk ◽  
Maxim Laletin
Keyword(s):  
Dark Matter ◽  
Early Universe ◽  
Cross Section ◽  
Thermal Equilibrium ◽  
Indirect Detection ◽  
Production Mechanism ◽  
Number Density ◽  
Matter Production ◽  
Relic Density ◽  
Standard Formalism

Abstract We study a novel dark matter production mechanism based on the freeze-in through semi-production, i.e. the inverse semi-annihilation processes. A peculiar feature of this scenario is that the production rate is suppressed by a small initial abundance of dark matter and consequently creating the observed abundance requires much larger coupling values than for the usual freeze-in. We provide a concrete example model exhibiting such production mechanism and study it in detail, extending the standard formalism to include the evolution of dark matter temperature alongside its number density and discuss the importance of this improved treatment. Finally, we confront the relic density constraint with the limits and prospects for the dark matter indirect detection searches. We show that, even if it was never in full thermal equilibrium in the early Universe, dark matter could, nevertheless, have strong enough present-day annihilation cross section to lead to observable signals.

scholarly journals Dark Matter production from relativistic bubble walls

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Aleksandr Azatov ◽  
Miguel Vanvlasselaer ◽  
Wen Yin
Keyword(s):  
Phase Transition ◽  
Dark Matter ◽  
Electroweak Phase Transition ◽  
First Order ◽  
Matter Production ◽  
First Order Phase Transition ◽  
Relic Abundance ◽  
Higgs Portal ◽  
First Order Phase ◽  
Gravitational Background

Abstract In this paper we present a novel mechanism for producing the observed Dark Matter (DM) relic abundance during the First Order Phase Transition (FOPT) in the early universe. We show that the bubble expansion with ultra-relativistic velocities can lead to the abundance of DM particles with masses much larger than the scale of the transition. We study this non-thermal production mechanism in the context of a generic phase transition and the electroweak phase transition. The application of the mechanism to the Higgs portal DM as well as the signal in the Stochastic Gravitational Background are discussed.

scholarly journals Interactions of Beams with Surroundings

2020 ◽  
pp. 183-203
Author(s):  
M. Brugger ◽  
H. Burkhardt ◽  
B. Goddard ◽  
F. Cerutti ◽  
R. G. Alia
Keyword(s):  
High Energy Physics ◽  
High Energy ◽  
Fixed Target ◽  
Fixed Target Experiments ◽  
Secondary Particles ◽  
Radiation Sources ◽  
Residual Gas ◽  
The Impact ◽  
High Energy Particles ◽  
Energy Physics

AbstractWith the exceptions of Synchrotron Radiation sources, beams of accelerated particles are generally designed to interact either with one another (in the case of colliders) or with a specific target (for the operation of Fixed Target experiments, the production of secondary beams and for medical applications). However, in addition to the desired interactions there are unwanted interactions of the high energy particles which can produce undesirable side effects. These interactions can arise from the unavoidable presence of residual gas in the accelerator vacuum chamber, or from the impact of particles lost from the beam on aperture limits around the accelerator, as well as the final beam dump. The wanted collisions of the beams in a collider to produce potentially interesting High Energy Physics events also reduces the density of the circulating beam and can produce high fluxes of secondary particles.

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