Implications of first LZ and XENONnT results: A comparative study of neutrino properties and light mediators

ShivaSankar, K.A.; Majumdar, Anirban; Papoulias, D. K.; Prajapati, H. R.; Srivastava, Rahul

doi:10.1016/j.physletb.2023.137742

Cited by 21 publications

(16 citation statements)

References 37 publications

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“…In recent years, neutrino experiments [12][13][14][15][16][17][18][19][20][21][22][23] and dark-matter direct detection experiments [24][25][26][27][28] have become increasingly important tools for studying the physics beyond the Standard Model [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43]. Among these experiments, XENONnT [27] and Borexino [15][16][17] are particularly noteworthy for their sensitivity to relatively low-energy new physics.…”

Section: Introductionmentioning

confidence: 99%

Probing non-standard neutrino interactions with interference: insights from dark matter and neutrino experiments

Park

Tomar

2023

J. Cosmol. Astropart. Phys.

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Neutrino-electron scattering experiments play a crucial role in investigating the non-standard interactions of neutrinos. In certain models, these interactions can include interference terms that may affect measurements. Next-generation direct detection experiments, designed primarily for dark-matter searches, are also getting sensitive to probe the neutrino properties. We utilise the data from XENONnT, a direct detection experiment, and Borexino, a low-energy solar neutrino experiment, to investigate the impact of interference on non-standard interactions. Our study considers models with an additional U(1) B-L , including U(1), U(1) L e - L µ , and U(1) L e - L τ , to investigate the impact of interference on non-standard neutrino interactions. We demonstrate that this interference can lead to a transition between the considered non-standard interaction models in the energy range relevant to both the XENONnT and Borexino experiments. This transition can be used to distinguish among the considered models if any signals are observed at direct detection or neutrino experiments. Our findings underscore the importance of accounting for the interference and incorporating both direct detection and solar neutrino experiments to gain a better understanding of neutrino interactions and properties.

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Section: Introductionmentioning

confidence: 99%

Probing non-standard neutrino interactions with interference: insights from dark matter and neutrino experiments

Park

Tomar

2023

J. Cosmol. Astropart. Phys.

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“…[26,87] and ES in ref. [88]. For the case of a new light scalar (LS) mediator, the CEνNS cross section reads…”

Section: Jhep04(2023)035mentioning

confidence: 99%

“…We compare our results with the existing limits from other CEνNS experiments, in particular CONNIE [110], CONUS [12] and Dresden-II [26], from the analysis given in ref. [88] of two multi-ton DM experiments (namely XENONnT [111] and LZ [112]), from the analysis of solar neutrino data collected by Borexino [113], from collider experiments [43], including BaBar [114] and LHCb [115], and from rare meson decays at NA48 [116]. In the ∼ 1 GeV mass region, we also show bounds from beam-dump experiments [41,117], including E141 [118,119], E137 [120], E774 [121], KEK [122], Orsay [123], U70/ν-CAL I [124,125], CHARM [126,127], NO-MAD [128], NA64 [129,130] and the fixed target experiments A1 [131] and APEX [132].…”

Section: Light Mediatorsmentioning

confidence: 99%

“…This comes from the fact that, even though the 2021 dataset increased the statistics considerably, the threshold of the COHERENT-CsI detector remained unchanged for the two measurements. Indeed, due to their larger threshold, CEνNS experiments cannot compete with the very low-threshold dark matter direct detection experiments, for which the sensitivity reach on the neutrino magnetic moment is in the few ×10 −12 µ B ballpark [88]. We have also performed a combined analysis, allowing both effective MM to vary simultaneously.…”

Section: Neutrino Em Properties 451 Effective Neutrino Magnetic Momentmentioning

confidence: 99%

“…As in the case of the effective neutrino magnetic moment, the present limits are less severe compared to the currently most stringent constraints derived from the analysis of LZ and XENONnT data in ref. [88] by two orders of magnitude (for reactor-based experiments see ref. [137]).…”

Section: Jhep04(2023)035mentioning

confidence: 99%

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Physics implications of a combined analysis of COHERENT CsI and LAr data

Romeri

Miranda

Papoulias

et al. 2023

J. High Energ. Phys.

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The observation of coherent elastic neutrino nucleus scattering has opened the window to many physics opportunities. This process has been measured by the COHERENT Collaboration using two different targets, first CsI and then argon. Recently, the COHERENT Collaboration has updated the CsI data analysis with a higher statistics and an improved understanding of systematics. Here we perform a detailed statistical analysis of the full CsI data and combine it with the previous argon result. We discuss a vast array of implications, from tests of the Standard Model to new physics probes. In our analyses we take into account experimental uncertainties associated to the efficiency as well as the timing distribution of neutrino fluxes, making our results rather robust. In particular, we update previous measurements of the weak mixing angle and the neutron root mean square charge radius for CsI and argon. We also update the constraints on new physics scenarios including neutrino nonstandard interactions and the most general case of neutrino generalized interactions, as well as the possibility of light mediators. Finally, constraints on neutrino electromagnetic properties are also examined, including the conversion to sterile neutrino states. In many cases, the inclusion of the recent CsI data leads to a dramatic improvement of bounds.

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