Extending light WIMP searches to single scintillation photons in LUX

Akerib, D. S.; Alsum, S.; Araújo, H. M.; Bai, X.; Balajthy, J.; Baxter, A.; Beltrame, P.; Bernard, E. P.; Bernstein, Adam; Biesiadzinski, T. P.; Boulton, E. M.; Boxer, B.; Brás, P.; Burdin, S.; Byram, D.; Carmona-Benitez, M. C.; Chan, C.; Cutter, J. E.; Viveiros, L. de; Druszkiewicz, E.; Fallon, S. R.; Fan, A.; Fiorucci, S.; Gaitskell, R. J.; Genovesi, J.; Ghag, C.; Gilchriese, M.; Gwilliam, C. B.; Hall, C.; Haselschwardt, S. J.; Hertel, S. A.; Hogan, D. P.; Horn, M.; Huang, Di; Ignarra, C. M.; Jacobsen, R. G.; Jahangir, O.; Ji, W.; Kamdin, K.; Kazkaz, K.; Khaitan, D.; Korolkova, E. V.; Kravitz, S.; Kudryavtsev, V. A.; Leason, E. A.; Lenardo, B. G.; Lesko, K. T.; Liao, J.; Lin, J.; Lindote, A.; Lopes, M. I.; Paredes, B. López; Manalaysay, A.; Mannino, R. L.; Marangou, N.; Marzioni, M. F.; McKinsey, D. N.; Mei, Dongming; Moongweluwan, M.; Morad, J. A.; Murphy, A. St. J.; Naylor, Andrew; Nehrkorn, C.; Nelson, H. N.; Neves, F.; Nilima, A.; Oliver-Mallory, K. C.; Palladino, K. J.; Pease, E. K.; Riffard, Q.; Rischbieter, G. R. C.; Rhyne, C.; Rossiter, P.; Shaw, S.; Shutt, T.; Silva, C.; Solmaz, M.; Solovov, V.; Sørensen, P.; Sumner, T. J.; Szydagis, M.; Taylor, D. J.; Taylor, R.; Taylor, WC; Tennyson, B. P.; Terman, P. A.; Tiedt, D. R.; To, W. H.; Tripathi, M.; Tvrznikova, L.; Utku, U.; Uvarov, S.; Vacheret, A.; Velan, V.; Webb, R.; White, James T.; Whitis, T. J.; Witherell, M. S.; Wolfs, F. L. H.; Woodward, David I.; Xu, J.; Zhang, C.

doi:10.1103/physrevd.101.042001

Cited by 34 publications

(39 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As illustrated in Fig. 2 and discussed in [21], an increase of the PHE rate is observed in LUX after particle interactions in the TPC. These PHEs do not exhibit a doublephotoelectron emission feature [44], suggesting that they have longer wavelengths than the vacuum ultraviolet (VUV) xenon photons associated with the regular S1 and S2 emission processes.…”

Section: B Photoelectron Backgroundmentioning

confidence: 61%

“…Most importantly, this background impairs the ability of xenon TPCs to search for ultralow energy interactions to which these detectors are otherwise sensitive. This problem is most notable in rare event searches that rely on the highgain ionization signals when scintillation signals are absent or at the detection limit [10,15,20,21]. Although preliminary successes have been demonstrated, the excess rate of ionizationlike background has so far limited further improvement of the low-energy sensitivity of Xe TPCs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation of background electron emission in the LUX detector

Akerib¹,

Alsum²,

Araújo³

et al. 2020

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

Dual-phase xenon detectors, as currently used in direct detection dark matter experiments, have observed elevated rates of background electron events in the low energy region. While this background negatively impacts detector performance in various ways, its origins have only been partially studied. In this paper we report a systematic investigation of the electron pathologies observed in the LUX dark matter experiment. We characterize different electron populations based on their emission intensities and their correlations with preceding energy depositions in the detector. By studying the background under different experimental conditions, we identified the leading emission mechanisms, including photoionization and the photoelectric effect induced by the xenon luminescence, delayed emission of electrons trapped under the liquid surface, capture and release of drifting electrons by impurities, and grid electron emission. We discuss how these backgrounds can be mitigated in LUX and future xenon-based dark matter experiments.

show abstract

Section: B Photoelectron Backgroundmentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Investigation of background electron emission in the LUX detector

Akerib¹,

Alsum²,

Araújo³

et al. 2020

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, the LUX collaboration has been able to set thresholds as low as 1.1 keV nr , with a 3.3 keV nr energy threshold at 50% detector efficiency in both the S1 and S2 channels required for ER/NR discrimination [127]. In light of this and the advent of new analysis techniques allowing for even lower energy thresholds [128], we have set thresholds for both LZ and DARWIN to be similar to this larger result. Above this threshold we can perform a nuclear recoil analysis with 99.5% rejection of ER backgrounds with a 50% acceptance of NR signal events [55,129].…”

Section: Jhep12(2020)155mentioning

confidence: 87%

Solar neutrino probes of the muon anomalous magnetic moment in the gauged $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$

Amaral

Cerdeño

Foldenauer

et al. 2020

J. High Energ. Phys.

View full text Add to dashboard Cite

Models of gauged $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$ U 1 L μ − L τ can provide a solution to the long-standing discrepancy between the theoretical prediction for the muon anomalous magnetic moment and its measured value. The extra contribution is due to a new light vector mediator, which also helps to alleviate an existing tension in the determination of the Hubble parameter. In this article, we explore ways to probe this solution via the scattering of solar neutrinos with electrons and nuclei in a range of experiments and considering high and low solar metallicity scenarios. In particular, we reevaluate Borexino constraints on neutrino-electron scattering, finding them to be more stringent than previously reported, and already excluding a part of the (g − 2)μ explanation with mediator masses smaller than 2 × 10−2 GeV. We then show that future direct dark matter detectors will be able to probe most of the remaining solution. Due to its large exposure, LUX-ZEPLIN will explore regions with mediator masses up to 5 × 10−2 GeV and DARWIN will be able to extend the search beyond 10−1 GeV, thereby covering most of the area compatible with (g − 2)μ. For completeness, we have also computed the constraints derived from the recent XENON1T electron recoil search and from the CENNS-10 LAr detector, showing that none of them excludes new areas of the parameter space. Should the excess in the muon anomalous magnetic moment be confirmed, our work suggests that direct detection experiments could provide crucial information with which to test the $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$ U 1 L μ − L τ solution, complementary to efforts in neutrino experiments and accelerators.

show abstract

“…3, we show the current upper bound on the spinindependent cross section (σ SI ) for the elastic scattering of the DM particle with a nucleon for the DM mass of m DM ≥ 2 GeV. For the DM mass m DM ≥ 6 GeV, the most stringent upper bound is obtained by XENON1T experiment [39] while for 2 GeV ≤ m DM ≤ 6 GeV, the upper bound is obtained by a combination of DarkSide-50 [40], LUX [41], and PandaX-II [42]. As is well known the constraints are most severe for a DM mass around 30 GeV and become weaker on either side of this mass.…”

Section: B Direct Detection Constraintsmentioning

confidence: 96%

Dark matter constraints on low mass and weakly coupled B−L gauge boson

Mohapatra

Okada

2020

Phys. Rev. D

View full text Add to dashboard Cite

We investigate constraints on the new B − L gauge boson (Z BL) mass and coupling (g BL) in a Uð1Þ B−L extension of the standard model (SM) with an SM singlet Dirac fermion (ζ) as dark matter (DM). The DM particle ζ has an arbitrary B − L charge Q chosen to guarantee its stability. We focus on the small Z BL mass and small g BL regions of the model, and find new constraints for the cases where the DM relic abundance arises from thermal freeze-out as well as freeze-in mechanisms. In the thermal freeze-out case, the dark matter coupling is given by g ζ ≡ g BL Q ≃ 0.016 ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi ffi m ζ ½GeV p to reproduce the observed DM relic density and g BL ≥ 2.7 × 10 −8 ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi ffi m ζ ½GeV p for the DM particle to be in thermal equilibrium prior to freeze-out. Combined with the direct dark matter detection constraints and the indirect constraints from cosmic microwave background and AMS-02 measurements, discussed in earlier papers, we find that the allowed mass regions are limited to be m ζ ≳ 200 GeV and M Z BL ≳ 10 GeV. We then discuss the lower g BL values where the freeze-in scenario operates and find the following relic density constraints on parameters depending on the g BL range and dark matter mass: Case (A): for g BL ≥ 2.7 × 10 −8 ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi ffi m ζ ½GeV p , one has g 2 ζ g 2 BL þ 0.82 1.2 g 4 ζ ≃ 8.2 × 10 −24 ; and Case (B): for g BL < 2.7 × 10 −8 ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi ffi m ζ ½GeV p , there are two separate constraints depending on m ζ. Case (B1): for m ζ ≲ 2.5 TeV, we find g 2 ζ g 2 BL ≃ 8.2 × 10 −24 ð m ζ 2.5 TeV Þ; and Case (B2): for m ζ ≳ 2.5 TeV, we have g 2 ζ g 2 BL ≃ 8.2 × 10 −24. For this case, we display the various parameter regions of the model that can be probed by a variety of "Lifetime Frontier" experiments such as FASER, FASER2, Belle II, SHiP, and LDMX.

show abstract

Extending light WIMP searches to single scintillation photons in LUX

Cited by 34 publications

References 35 publications

Investigation of background electron emission in the LUX detector

Investigation of background electron emission in the LUX detector

Solar neutrino probes of the muon anomalous magnetic moment in the gauged $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$

Dark matter constraints on low mass and weakly coupled B−L gauge boson

Contact Info

Product

Resources

About