Flavor-dependent long-range neutrino interactions in DUNE & T2HK: alone they constrain, together they discover

被引：6
作者：
Singh, Masoom [1 ,2 ]
Bustamante, Mauricio [3 ]
Agarwalla, Sanjib Kumar [1 ,4 ,5 ,6 ]
机构：
[1] Sainik Sch Post, Inst Phys, Sachivalaya Marg, Bhubaneswar 751005, India
[2] Utkal Univ, Dept Phys, Vani Vihar, Bhubaneswar 751004, India
[3] Univ Copenhagen, Niels Bohr Inst, Niels Bohr Int Acad, DK-2100 Copenhagen, Denmark
[4] Homi Bhabha Natl Inst, Training Sch Complex, Mumbai 400094, India
[5] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
[6] Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 2023卷 / 08期
关键词：
Neutrino Mixing; New Gauge Interactions; New Light Particles; Non-Standard Neutrino Properties; OSCILLATION EXPERIMENTS; MATTER; SIMULATION; VIOLATION; PHYSICS; FORCES; SQUARE; ENERGY; MODEL;
D O I：
10.1007/JHEP08(2023)101
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Discovering new neutrino interactions would represent evidence of physics beyond the Standard Model. We focus on new flavor-dependent long-range neutrino interactions mediated by ultra-light mediators, with masses below 10(-10) eV, introduced by new lepton-number gauge symmetries L-e - L-& mu;, L-e - L-& tau;, and L-& mu; - L-& tau;. Because the interaction range is ultra-long, nearby and distant matter - primarily electrons and neutrons - in the Earth, Moon, Sun, Milky Way, and the local Universe, may source a large matter potential that modifies neutrino oscillation probabilities. The upcoming Deep Underground Neutrino Experiment (DUNE) and the Tokai-to-Hyper-Kamiokande (T2HK) long-baseline neutrino experiments will provide an opportunity to search for these interactions, thanks to their high event rates and well-characterized neutrino beams. We forecast their probing power. Our results reveal novel perspectives. Alone, DUNE and T2HK may strongly constrain long-range interactions, setting new limits on their coupling strength for mediators lighter than 10(-18) eV. However, if the new interactions are subdominant, then both DUNE and T2HK, together, will be needed to discover them, since their combination lifts parameter degeneracies that weaken their individual sensitivity. DUNE and T2HK, especially when combined, provide a valuable opportunity to explore physics beyond the Standard Model.
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页数：36
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