scholarly journals Sensitivity of direct detection experiments to neutrino magnetic dipole moments

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
D. Aristizabal Sierra ◽  
R. Branada ◽  
O. G. Miranda ◽  
G. Sanchez Garcia
Keyword(s):  
Dark Matter ◽  
Magnetic Dipole ◽  
Direct Detection ◽  
Dipole Moments ◽  
Nuclear Recoil ◽  
Active Volume ◽  
Electron Recoil ◽  
Flux Measurements ◽  
Neutrino Fluxes ◽  
One Year

Abstract With large active volume sizes dark matter direct detection experiments are sensitive to solar neutrino fluxes. Nuclear recoil signals are induced by 8B neutrinos, while electron recoils are mainly generated by the pp flux. Measurements of both processes offer an opportunity to test neutrino properties at low thresholds with fairly low backgrounds. In this paper we study the sensitivity of these experiments to neutrino magnetic dipole moments assuming 1, 10 and 40 tonne active volumes (representative of XENON1T, XENONnT and DARWIN), 0.3 keV and 1 keV thresholds. We show that with nuclear recoil measurements alone a 40 tonne detector could be as competitive as Borexino, TEXONO and GEMMA, with sensitivities of order 8.0 × 10−11μB at the 90% CL after one year of data taking. Electron recoil measurements will increase sensitivities way below these values allowing to test regions not excluded by astrophysical arguments. Using electron recoil data and depending on performance, the same detector will be able to explore values down to 4.0 × 10−12μB at the 90% CL in one year of data taking. By assuming a 200-tonne liquid xenon detector operating during 10 years, we conclude that sensitivities in this type of detectors will be of order 10−12μB. Reducing statistical uncertainties may enable improving sensitivities below these values.

Pulse Shape Discrimination of Nuclear Recoil and Electron Recoil Events With a NaI(Tl) Crystal for Dark Matter Search

2016 ◽  
Vol 63 (2) ◽  
pp. 534-538
Author(s):  
K. W. Kim ◽  
G. Adhikari ◽  
P. Adhikari ◽  
S. Choi ◽  
C. Ha ◽  
...  
Keyword(s):  
Dark Matter ◽  
Pulse Shape ◽  
Pulse Shape Discrimination ◽  
Nuclear Recoil ◽  
Shape Discrimination ◽  
Dark Matter Search ◽  
Electron Recoil

BAYESIAN IMPLICATIONS OF COLLIDER AND SUSY DARK MATTER DIRECT AND INDIRECT SEARCHES

2013 ◽  
Vol 28 (02) ◽  
pp. 1340008
Author(s):  
LESZEK ROSZKOWSKI ◽  
ENRICO MARIA SESSOLO ◽  
YUE-LIN SMING TSAI
Keyword(s):  
Dark Matter ◽  
Parameter Space ◽  
Direct Detection ◽  
The Sun ◽  
Bayesian Analyses ◽  
Dwarf Spheroidal Galaxies ◽  
Γ Ray ◽  
One Year ◽  
Spheroidal Galaxies

In this talk we present our recent Bayesian analyses of the Constrained MSSM in which the model's parameter space is constrained by the CMS αT 1.1/fb data at the LHC, the XENON100 dark matter direct detection data, and Fermi-LAT γ-ray data from dwarf spheroidal galaxies (dSphs). We also show that the projected one-year sensitivities for annihilation-induced neutrinos from the Sun in the 86-string configuration of IceCube/DeepCore have the potential to yield additional constraining power on the parameter space of the CMSSM.

scholarly journals Magnetic dipole moments for composite dark matter

2016 ◽  
Vol 2016 (03) ◽  
pp. 034-034
Author(s):  
Alfredo Aranda ◽  
Luis Barajas ◽  
Jose A.R. Cembranos
Keyword(s):  
Dark Matter ◽  
Magnetic Dipole ◽  
Dipole Moments

scholarly journals Recommended conventions for reporting results from direct dark matter searches

2021 ◽  
Vol 81 (10) ◽  
Author(s):  
D. Baxter ◽  
I. M. Bloch ◽  
E. Bodnia ◽  
X. Chen ◽  
J. Conrad ◽  
...  
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Profile Likelihood ◽  
Large Degree ◽  
Ratio Method ◽  
Statistical Inferences ◽  
Standard Set ◽  
Neutrino Fluxes ◽  
Published Result ◽  
Matter Detection

AbstractThe field of dark matter detection is a highly visible and highly competitive one. In this paper, we propose recommendations for presenting dark matter direct detection results particularly suited for weak-scale dark matter searches, although we believe the spirit of the recommendations can apply more broadly to searches for other dark matter candidates, such as very light dark matter or axions. To translate experimental data into a final published result, direct detection collaborations must make a series of choices in their analysis, ranging from how to model astrophysical parameters to how to make statistical inferences based on observed data. While many collaborations follow a standard set of recommendations in some areas, for example the expected flux of dark matter particles (to a large degree based on a paper from Lewin and Smith in 1995), in other areas, particularly in statistical inference, they have taken different approaches, often from result to result by the same collaboration. We set out a number of recommendations on how to apply the now commonly used Profile Likelihood Ratio method to direct detection data. In addition, updated recommendations for the Standard Halo Model astrophysical parameters and relevant neutrino fluxes are provided. The authors of this note include members of the DAMIC, DarkSide, DARWIN, DEAP, LZ, NEWS-G, PandaX, PICO, SBC, SENSEI, SuperCDMS, and XENON collaborations, and these collaborations provided input to the recommendations laid out here. Wide-spread adoption of these recommendations will make it easier to compare and combine future dark matter results.

scholarly journals Halo uncertainties in electron recoil events at direct detection experiments

2021 ◽  
Vol 81 (11) ◽  
Author(s):  
Tarak Nath Maity ◽  
Tirtha Sankar Ray ◽  
Sambo Sarkar
Keyword(s):  
Dark Matter ◽  
Phase Space ◽  
Direct Detection ◽  
Space Distribution ◽  
Semiconductor Detectors ◽  
Detection Rates ◽  
Phase Space Distribution ◽  
Electron Recoil ◽  
Highly Correlated ◽  
The Impact

AbstractThe dark matter direct detection rates are highly correlated with the phase space distribution of dark matter particles in our galactic neighbourhood. In this paper we make a systematic study of the impact of astrophysical uncertainties on electron recoil events at the direct detection experiments with Xenon and semiconductor detectors. We find that within the standard halo model there can be up to $$ \sim 50\%$$ ∼ 50 % deviation from the fiducial choice in the exclusion bounds from these observational uncertainties. For non-standard halo models we report a similar deviation from the fiducial standard halo model when fitted with recent cosmological N-body simulations while even larger deviations are obtained in case of the observational uncertainties.

scholarly journals Erratum: Dark-matter electric and magnetic dipole moments [Phys. Rev. DPRVDAQ0556-282170, 083501 (2004)10.1103/PhysRevD.70.083501]

2006 ◽  
Vol 73 (8) ◽  
Author(s):  
Kris Sigurdson ◽  
Michael Doran ◽  
Andriy Kurylov ◽  
Robert R. Caldwell ◽  
Marc Kamionkowski
Keyword(s):  
Dark Matter ◽  
Magnetic Dipole ◽  
Dipole Moments

scholarly journals Dark matter electromagnetic dipoles: the WIMP expectation

2021 ◽  
Vol 2021 (11) ◽  
Author(s):  
Thomas Hambye ◽  
Xun-Jie Xu
Keyword(s):  
Dark Matter ◽  
Cross Sections ◽  
Direct Detection ◽  
Dipole Moments ◽  
Tree Level ◽  
Photon Exchange ◽  
Nucleus Scattering ◽  
The One ◽  
Scattering Cross Sections ◽  
Near Future

Abstract We perform a systematic study of the electric and magnetic dipole moments of dark matter (DM) that are induced at the one-loop level when DM experiences four-fermion interactions with Standard Model (SM) charged fermions. Related to their loop nature these moments can largely depend on the UV completion at the origin of the four-fermion operators. We illustrate this property by considering explicitly two simple ways to generate these operators, from t- or s-channel tree-level exchange. Fixing the strength of these interactions from the DM relic density constraint, we obtain in particular a magnetic moment that, depending on the interaction considered, lies typically between 10−20 to 10−23 ecm or identically vanishes. These non-vanishing values induce, via photon exchange, DM-nucleus scattering cross sections that could be probed by current or near future direct detection experiments.

scholarly journals Direct detection of mirror matter in Twin Higgs models

2021 ◽  
Vol 2021 (11) ◽  
Author(s):  
Zackaria Chacko ◽  
David Curtin ◽  
Michael Geller ◽  
Yuhsin Tsai
Keyword(s):  
Dark Matter ◽  
Cooling Rate ◽  
Direct Detection ◽  
The Earth ◽  
Electron Recoil ◽  
The Galaxy ◽  
The Masses ◽  
Event Rates ◽  
Modest Effect ◽  
Mirror Matter

Abstract We explore the possibility of discovering the mirror baryons and electrons of the Mirror Twin Higgs model in direct detection experiments, in a scenario in which these particles constitute a subcomponent of the observed DM. We consider a framework in which the mirror fermions are sub-nano-charged, as a consequence of kinetic mixing between the photon and its mirror counterpart. We consider both nuclear recoil and electron recoil experiments. The event rates depend on the fraction of mirror DM that is ionized, and also on its distribution in the galaxy. Since mirror DM is dissipative, at the location of the Earth it may be in the form of a halo or may have collapsed into a disk, depending on the cooling rate. For a given mirror DM abundance we determine the expected event rates in direct detection experiments for the limiting cases of an ionized halo, an ionized disk, an atomic halo and an atomic disk. We find that by taking advantage of the complementarity of the different experiments, it may be possible to establish not just the multi-component nature of mirror dark matter, but also its distribution in the galaxy. In addition, a study of the recoil energies may be able to determine the masses and charges of the constituents of the mirror sector. By showing that the mass and charge of mirror helium are integer multiples of those of mirror hydrogen, these experiments have the potential to distinguish the mirror nature of the theory. We also carefully consider mirror plasma screening effects, showing that the capture of mirror dark matter particles in the Earth has at most a modest effect on direct detection signals.

scholarly journals CONSTRAINTS ON UED KK-NEUTRINO DARK MATTER FROM MAGNETIC DIPOLE MOMENTS

2007 ◽  
Vol 16 (10) ◽  
pp. 1593-1600
Author(s):  
THOMAS FLACKE ◽  
DAVID W. MAYBURY
Keyword(s):  
Dark Matter ◽  
Magnetic Dipole ◽  
Extra Dimension ◽  
Dipole Moments ◽  
Dark Matter Candidate ◽  
Universal Extra Dimension ◽  
The Standard Model ◽  
Five Dimension ◽  
The Stability ◽  
Kaluza Klein

Generically, universal extra dimension (UED) extensions of the standard model predict the stability of the lightest Kaluza–Klein (KK) particle and hence provide a dark matter candidate. For UED scenarios with one extra dimension, we model-independently determine the size of the induced five-dimension magnetic dipole moment of the KK-neutrino, ν(1). We show that current observational bounds on the interactions of dipole dark matter place constraints on UED models with KK-neutrino dark matter.

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