Search for low-mass dark matter with CsI(Tl) crystal detectors

Abstract

We present a search for low-mass (≤ 20 GeV/c 2 ) weakly interacting massive particles (WIMPs), strong candidates of dark matter particles, using the low-background CsI(Tl) detector array of the Korea Invisible Mass Search experiment. With a total data exposure of 24,524.3 kg·days, we search for WIMP interaction signals produced by nuclei recoiling from WIMP-nuclear elastic scattering with visible energies between 2 and 4 keVee (electron-equivalent energy). The observed energy distribution of candidate events is consistent with null signals, and upper limits of the WIMPproton spin-independent interaction are set with a 90% confidence level. The observed limit covers most of the low-mass region of parameter space favored by the DAMA annual modulation signal assuming the standard halo model.

ANAIS-112 sensitivity in the search for dark matter annual modulation

“…According to Eq. (14), the variance of the estimator of the modulation amplitude in the j th energy bin of the module k (k = 1, 2, · · · , 9) is:…”

“…Projects like DM-Ice [6], COSINE-100 [7,8], SABRE [9] and PICO-LON [10] also envisage the use of large masses of NaI(Tl) for dark matter searches. Results obtained by a e-mail: icoarasa@unizar.es b Deceased other experiments with other target materials and techniques (like those from CDMS [11], CRESST [12], EDELWEISS [13], KIMS [14], LUX [15], PICO [16], XENON [17] or DarkSide [18,19] collaborations) have been ruling out for years the most plausible compatibility scenarios. Nevertheless, DAMA/LIBRA has accumulated up to now twenty annual cycles in the [2,6] keV ee energy region (keV ee for keV electron-equivalent) with 12.8σ statistical significance (phase and period fixed) [3][4][5].…”

Dark compact objects: An extensive overview

“…Direct detection attempts to detect DM particles through their elastic scattering with nuclei (normal matter recoiling from DM collisions). The recoil is not measured directly but through crystal or liquid scintillation (DAMA/LIBRA [18], KIMS [19], CRESST-II [20], ZEPLIN [21]), phonons generation (CRESST-I [22]), ionization (CDMS [23], superCDMS [24], XENON100 [25], XENON1T [26], LUX [27]), axion cavities (ADMX [28]), and several others. The indirect searches aimt a detecting the products of WIMP annihilations (e.g., gamma rays, neutrinos, positrons, electrons, and antiprotons).…”

Shell-model study on event rates of lightest supersymmetric particles scattering offKr83andTePirinen1, Srivastava2, Suhonen3 et al. 2016Phys. Rev. D132130View full textAdd to dashboardCite

“…At present, the most favored nuclear targets include 19 F (SIMPLE [14], PICASSO [15]), 73 Ge (CDMS [16], EDELWEISS [17]) 127 I (KIMS [18], DAMA/LIBRA [19]), 129;131 Xe (XENON [20], XMASS [21], LZ [22]), and 133 Cs (KIMS). Aside from the above nuclei already used in detectors, there exist some other theoretically viable candidates [23], such as 83 Kr and 125 Te, which to our knowledge have not been examined thoroughly within a complete microscopic nuclear framework.…”