BibTex format
@article{Araujo:2023:10.1016/j.astropartphys.2023.102853,
author = {Araujo, HM and Balashov, SN and Borg, JE and Brunbauer, FM and Cazzaniga, C and Frost, CD and Garcia, F and Kaboth, AC and Kastriotou, M and Katsioulas, I and Khazov, A and Kraus, H and Kudryavtsev, VA and Lilley, S and Lindote, A and Loomba, D and Lopes, MI and Asamar, EL and Dapica, PL and Majewski, PA and Marley, T and McCabe, C and Mills, AF and Nakhostin, M and Neep, T and Neves, F and Nikolopoulos, K and Oliveri, E and Ropelewski, L and Tilly, E and Solovov, VN and Sumner, TJ and Tarrant, J and Turnley, R and van, der Grinten MGD and Veenhof, R},
doi = {10.1016/j.astropartphys.2023.102853},
journal = {Astroparticle Physics},
title = {The MIGDAL experiment: measuring a rare atomic process to aid the search for dark matter},
url = {http://dx.doi.org/10.1016/j.astropartphys.2023.102853},
volume = {151},
year = {2023}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - We present the Migdal In Galactic Dark mAtter expLoration (MIGDAL) experiment aiming at the unambiguousobservation and study of the so-called Migdal effect induced by fast-neutron scattering. It is hoped that thiselusive atomic process can be exploited to enhance the reach of direct dark matter search experiments tolower masses, but it is still lacking experimental confirmation. Our goal is to detect the predicted atomicelectron emission which is thought to accompany nuclear scattering with low, but calculable, probability, bydeploying an Optical Time Projection Chamber filled with a low-pressure gas based on CF4. Initially, pureCF4 will be used, and then in mixtures containing other elements employed by leading dark matter searchtechnologies — including noble species, plus Si and Ge. High resolution track images generated by a GasElectron Multiplier stack, together with timing information from scintillation and ionisation readout, will beused for 3D reconstruction of the characteristic event topology expected for this process — an arrangement oftwo tracks sharing a common vertex, with one belonging to a Migdal electron and the other to a nuclear recoil.Different energy-loss rate distributions along both tracks will be used as a powerful discrimination tool againstbackground events. In this article we present the design of the experiment, informed by extensive particle andtrack simulations and detailed estimations of signal and background rates. In pure CF4 we expect to observe8.9 (29.3) Migdal events per calendar day of exposure to an intense D–D (D–T) neutron generator beam at theNILE facility located at the Rutherford Appleton Laboratory (UK). With our nominal assumptions, 5 mediandiscovery significance can be achieved in under one day with either generator.
AU - Araujo,HM
AU - Balashov,SN
AU - Borg,JE
AU - Brunbauer,FM
AU - Cazzaniga,C
AU - Frost,CD
AU - Garcia,F
AU - Kaboth,AC
AU - Kastriotou,M
AU - Katsioulas,I
AU - Khazov,A
AU - Kraus,H
AU - Kudryavtsev,VA
AU - Lilley,S
AU - Lindote,A
AU - Loomba,D
AU - Lopes,MI
AU - Asamar,EL
AU - Dapica,PL
AU - Majewski,PA
AU - Marley,T
AU - McCabe,C
AU - Mills,AF
AU - Nakhostin,M
AU - Neep,T
AU - Neves,F
AU - Nikolopoulos,K
AU - Oliveri,E
AU - Ropelewski,L
AU - Tilly,E
AU - Solovov,VN
AU - Sumner,TJ
AU - Tarrant,J
AU - Turnley,R
AU - van,der Grinten MGD
AU - Veenhof,R
DO - 10.1016/j.astropartphys.2023.102853
PY - 2023///
SN - 0927-6505
TI - The MIGDAL experiment: measuring a rare atomic process to aid the search for dark matter
T2 - Astroparticle Physics
UR - http://dx.doi.org/10.1016/j.astropartphys.2023.102853
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000994021700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR - https://www.sciencedirect.com/science/article/pii/S0927650523000397
UR - http://hdl.handle.net/10044/1/113171
VL - 151
ER -