scholarly journals The BDX-MINI detector for Light Dark Matter search at JLab

2021 ◽  
Vol 81 (2) ◽  
Author(s):  
M. Battaglieri ◽  
P. Bisio ◽  
M. Bondí ◽  
A. Celentano ◽  
P. L. Cole ◽  
...  
Keyword(s):  
Dark Matter ◽  
Mass Range ◽  
Passive Layer ◽  
Minimal Access ◽  
Silicon Photomultipliers ◽  
Dark Matter Search ◽  
Beam Dump ◽  
Beam Incident ◽  
And Performance ◽  
Electron Beam Incident

AbstractThis paper describes the design and performance of a compact detector, BDX-MINI, that incorporates all features of a concept that optimized the detection of light dark matter in the MeV-GeV mass range produced by electrons in a beam dump. It represents a reduced version of the future BDX experiment expected to run at JLAB. BDX-MINI was exposed to penetrating particles produced by a 2.176 GeV electron beam incident on the beam dump of Hall A at Jefferson Lab. The detector consists of 30.5 kg of PbWO$$_4$$ 4 crystals with sufficient material following the beam dump to eliminate all known particles except neutrinos. The crystals are read out using silicon photomultipliers. Completely surrounding the detector are a passive layer of tungsten and two active scintillator veto systems, which are also read out using silicon photomultipliers. The design was validated and the performance of the robust detector was shown to be stable during a six month period during which the detector was operated with minimal access.

A 20cm 2 CCD mosaic camera for a dark matter search part II : Electronics, data acquisition and performance

1994 ◽  
Vol 4 (3-4) ◽  
pp. 279-296 ◽  
Author(s):  
M. Arnaud ◽  
E. Aubourg ◽  
P. Bareyre ◽  
S. Br';ehin ◽  
R. Caridroit ◽  
...  
Keyword(s):  
Dark Matter ◽  
Data Acquisition ◽  
Dark Matter Search ◽  
And Performance

scholarly journals Dark matter search in nucleon, pion, and electron channels from a proton beam dump with MiniBooNE

2018 ◽  
Vol 98 (11) ◽  
Author(s):  
A. A. Aguilar-Arevalo ◽  
M. Backfish ◽  
A. Bashyal ◽  
B. Batell ◽  
B. C. Brown ◽  
...  
Keyword(s):  
Dark Matter ◽  
Proton Beam ◽  
Dark Matter Search ◽  
Beam Dump

scholarly journals Hierarchical formation of Dark Matter Halos near the Free Streaming Scale, and Their Implications on Indirect Dark Matter Search

2014 ◽  
Vol 11 (S308) ◽  
pp. 416-419
Author(s):  
Tomoaki Ishiyama
Keyword(s):  
Dark Matter ◽  
Early Universe ◽  
Power Law ◽  
Mass Concentration ◽  
Milky Way ◽  
Mass Range ◽  
Dark Matter Halos ◽  
Dark Matter Search ◽  
Concentration Parameter ◽  
Formation And Evolution

AbstractThe smallest dark matter halos are formed first in the early universe. According to recent studies, the central density cusp is much steeper in these halos than in larger halos and scales as ρ ∝ r−(1.5−1.3). We present results of very large cosmological N-body simulations of the hierarchical formation and evolution of halos over a wide mass range, beginning from the formation of the smallest halos. We confirmed early studies that the inner density cusps are steeper in halos at the free streaming scale. The cusp slope gradually becomes shallower as the halo mass increases. The slope of halos 50 times more massive than the smallest halo is approximately -1.3. The concentration parameter is nearly independent of halo mass, and ruling out simple power law mass-concentration relations. The steeper inner cusps of halos near the free streaming scale enhance the annihilation luminosity of a Milky Way sized halo between 12 to 67%.

Characterization of a CsI(Tl)-SiPM detector to low energy protons for light dark matter search in a future Beam Dump eXperiment

2017 ◽  
Vol 12 (03) ◽  
pp. C03009-C03009 ◽  
Author(s):  
M. Bondí ◽  
M. Battaglieri ◽  
M. Carpinelli ◽  
A. Celentano ◽  
M. De Napoli ◽  
...  
Keyword(s):  
Dark Matter ◽  
Low Energy ◽  
Dark Matter Search ◽  
Beam Dump

scholarly journals Beam Purity for Light Dark Matter Search in Beam Dump Experiments

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
D. Banerjee ◽  
P. Crivelli ◽  
A. Rubbia
Keyword(s):  
Dark Matter ◽  
Electron Beam ◽  
Beam Line ◽  
Test Beam ◽  
Dark Matter Search ◽  
Beam Dump ◽  
Background Rejection ◽  
Unexplored Area ◽  
Simulation Results

This paper reviews the search for light dark matter in beam dump experiments with a special emphasis on the necessity of beam purity for precise background rejection at the sensitivities aimed at these experiments. As a case study we cite the P348 experiment which has test beam time in Fall 2015 at the SPS H4 beam line at CERN and aims to search for theU′(1)gauge boson,A′, which as per one model of dark matter mediates a weak interaction between ordinary matter and dark matter via mixing of these “dark photons” with ordinary photon. The experiment aims to probe the still unexplored area of mixing strength10-5≤ϵ≤10-3and massesMA′≤100 MeV by using 10–300 GeV electron beam from the CERN SPS. This paper presents the simulation results for rejection of background due to beam impurity, by tracking the incoming particles with Micromegas detectors at a level <10-10.

scholarly journals The SHiP experiment at CERN

2018 ◽  
Vol 182 ◽  
pp. 02016 ◽  
Author(s):  
Walter M. Bonivento
Keyword(s):  
Dark Matter ◽  
Standard Model ◽  
Theoretical Models ◽  
Mass Range ◽  
New Physics ◽  
Beyond The Standard Model ◽  
Beam Dump ◽  
Weakly Coupled ◽  
Physics Potential ◽  
The Standard Model

The discovery of the Higgs boson has fully confirmed the Standard Model of particles and fields. Nevertheless, there are still fundamental phenomena, like the existence of dark matter and the baryon asymmetry of the Universe, deserving an explanation that could come from the discovery of new particles. Searches for new physics with accelerators are performed at the LHC, looking for high massive particles coupled to matter with ordinary strength. A new experiment at CERN meant to search for very weakly coupled particles in the few GeV mass domain has been recently proposed. The existence of such particles, foreseen in different theoretical models beyond the Standard Model, is largely unexplored. A beam dump facility using high intensity 400 GeV protons is a copious source of such unknown particles in the GeV mass range. The beam dump is also a copious source of neutrinos and in particular it is an ideal source of tau neutrinos, the less known particle in the Standard Model. The neutrino detector can also search for dark matter through its scattering off the electrons. We report the physics potential of the SHiP experiment.

Sign in / Sign up

Export Citation Format

Share Document