Observation of two-neutrino double electron capture in 124Xe with XENON1T - Nature.com

1.

Winter, R. G. Double K capture and single K capture with positron emission. Phys. Rev. 100, 142–144 (1955).

2.

Gavrilyuk, Y. M. et al. Indications of 2ν2K capture in ⁷⁸Kr. Phys. Rev. C 87, 035501 (2013).

3.

Ratkevich, S. S. et al. Comparative study of the double-K-shell-vacancy production in single- and double-electron-capture decay. Phys. Rev. C 96, 065502 (2017).

4.

Meshik, A. P., Hohenberg, C. M., Pravdivtseva, O. V. & Kapusta, Y. S. Weak decay of ¹³⁰Ba and ¹³²Ba: geochemical measurements. Phys. Rev. C 64, 035205 (2001).

5.

Pujol, M., Marty, B., Burnard, P. & Philippot, P. Xenon in archean barite: weak decay of ¹³⁰Ba, mass-dependent isotopic fractionation and implication for barite formation. Geochim. Cosmochim. Acta 73, 6834–6846 (2009).

6.

Gavriljuk, Y. M. et al. 2K-capture in ¹²⁴Xe: results of data processing for an exposure of 37.7 kg day. Phys. Part. Nucl. 49, 563–568 (2018).

7.

Abe, K. et al. Improved search for two-neutrino double electron capture on ¹²⁴Xe and ¹²⁶Xe using particle identification in XMASS-I. Progr. Theor. Exp. Phys. 2018, 053D03 (2018).

8.

Suhonen, J. Double beta decays of ¹²⁴Xe investigated in the QRPA framework. J. Phys. G Nucl. Phys. 40, 075102 (2013).

9.

Aunola, M. & Suhonen, J. Systematic study of beta and double beta decay to excited final states. Nucl. Phys. A 602, 133–166 (1996).

10.

Singh, S., Chandra, R., Rath, P. K., Raina, P. K. & Hirsch, J. G. Nuclear deformation and the two neutrino double-β-decay in ^124,126Xe, ^128,130Te, ^130,132Ba and ¹⁵⁰Nd isotopes. Eur. Phys. J. A 33, 375–388 (2007).

11.

Hirsch, M., Muto, K., Oda, T. & Klapdor-Kleingrothaus, H. V. Nuclear structure calculation of β⁺β⁺, β⁺/EC and EC/EC decay matrix elements. Z. Phys. A 347, 151–160 (1994).

12.

Rumyantsev, O. A. & Urin, M. H. The strength of the analog and Gamow–Teller giant resonances and hindrance of the 2νββ-decay rate. Phys. Lett. B 443, 51–57 (1998).

13.

Pirinen, P. & Suhonen, J. Systematic approach to β and 2νββ decays of mass A = 100–136 nuclei. Phys. Rev. C 91, 054309 (2015).

14.

Coello Pérez, E. A., Menéndez, J. & Schwenk, A. Two-neutrino double electron capture on 124Xe based on an effective theory and the nuclear shell model. Preprint at https://arxiv.org/abs/1809.04443 (2018).

15.

Majorana, E. Theory of the symmetry of electrons and positrons. Nuovo Cimento 14, 171–184 (1937).

16.

Bernabeu, J., De Rujula, A. & Jarlskog, C. Neutrinoless double electron capture as a tool to measure the ν _e mass. Nucl. Phys. B 223, 15–28 (1983).

17.

Sujkowski, Z. & Wycech, S. Neutrinoless double electron capture: a tool to search for Majorana neutrinos. Phys. Rev. C 70, 052501 (2004).

18.

Aprile, E. et al. Physics reach of the XENON1T dark matter experiment. J. Cosmol. Astropart. Phys. 1604, 027 (2016).

19.

Mount, B. J. et al. LUX-ZEPLIN (LZ). Report No. LBNL-1007256 (Lawrence Berkeley National Laboratory, 2017).

20.

Aalbers, J. et al. DARWIN: towards the ultimate dark matter detector. J. Cosmol. Astropart. Phys. 1611, 017 (2016).

21.

Doi, M. & Kotani, T. Neutrinoless modes of double beta decay. Prog. Theor. Phys. 89, 139–159 (1993).

22.

Cullen, D. Program RELAX: A Code Designed to Calculate Atomic Relaxation Spectra of X-Rays and Electrons. Report No. UCRL-ID–110438 (Lawrence Livermore National Laboratory, 1992).

23.

Buchmüller, W., Peccei, R. & Yanagida, T. Leptogenesis as the origin of matter. Annu. Rev. Nucl. Part. Sci. 55, 311–355 (2005).

24.

Nesterenko, D. A. et al. Double-beta transformations in isobaric triplets with mass numbers A = 124, 130, and 136. Phys. Rev. C 86, 044313 (2012).

25.

Aprile, E. et al. Search for two-neutrino double electron capture of ¹²⁴Xe with XENON100. Phys. Rev. C 95, 024605 (2017).

26.

Aprile, E. et al. The XENON1T dark matter experiment. Eur. Phys. J. C 77, 881 (2017).

27.

Aprile, E. et al. Dark matter search results from a one tonne × year exposure of XENON1T. Phys. Rev. Lett. 121, 111302 (2018).

28.

Aprile, E. et al. Conceptual design and simulation of a water Cherenkov muon veto for the XENON1T experiment. J. Instrum. 9, P11006 (2014).

29.

Aprile, E. et al. Material radioassay and selection for the XENON1T dark matter experiment. Eur. Phys. J. C 77, 890 (2017).

30.

Aprile, E. et al. Removing krypton from xenon by cryogenic distillation to the ppq level. Eur. Phys. J. C 77, 275 (2017).

31.

de Laeter, J. et al. Atomic weights of the elements. Review 2000 (IUPAC technical report). Pure Appl. Chem. 75, 683–800 (2003).

32.

Linstrom, P. & Mallard, W. G. E. NIST Chemistry WebBook, NIST Standard Reference Database Number 69 https://doi.org/10.18434/T4D303 (2018).

33.

Zhang, H. et al. Dark matter direct search sensitivity of the PandaX-4T experiment. Sci. China Phys. Mech. Astron. 62, 31011 (2019).

34.

Manalaysay, A. et al. Spatially uniform calibration of a liquid xenon detector at low energies using ^83mKr. Rev. Sci. Instrum. 81, 073303 (2010).

35.

Conti, E. et al. Correlated fluctuations between luminescence and ionization in liquid xenon. Phys. Rev. B 68, 054201 (2003).

36.

Aprile, E., Giboni, K. L., Majewski, P., Ni, K. & Yamashita, M. Observation of anti-correlation between scintillation and ionization for MeV gamma-rays in liquid xenon. Phys. Rev. B 76, 014115 (2007).

37.

Szydagis, M. et al. NEST: a comprehensive model for scintillation yield in liquid xenon. J. Instrum. 6, P10002 (2011).

38.

Akerib, D. S. et al. Signal yields, energy resolution, and recombination fluctuations in liquid xenon. Phys. Rev. D 95, 012008 (2017).

39.

Aprile, E. et al. The XENON100 dark matter experiment. Astropart. Phys. 35, 573–590 (2012).

Let's block ads! (Why?)

https://www.nature.com/articles/s41586-019-1124-4

2019-04-24 17:03:45Z
52780276380124

Bagikan Berita Ini