Nonstandard neutrino interactions at COHERENT, DUNE, T2HK and LHC

Nonstandard neutrino interactions at COHERENT, DUNE, T2HK and LHC
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DOI:
10.1007/jhep11(2019)028
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发表时间:
2019-10
影响因子:
5.4
通讯作者:
T. Han;J. Liao;Hongkai Liu;D. Marfatia
T. Han;J. Liao;Hongkai Liu;D. Marfatia
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
T. Han;J. Liao;Hongkai Liu;D. Marfatia

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我们研究如何通过结合来自 COHERENT、DUNE、T2HK 和高光度 (HL) LHC 的相干弹性中微子-核散射、中微子振荡和对撞机数据来探测非标准中微子相互作用 (NSI)。我们专注于在通用无异常紫外完整模型中由新风味规范玻色子 Z' 引起的 NSI。对于高于 10 GeV 的 Z′ 质量,无论模型的味道结构如何,HL-LHC 都具有最佳灵敏度。对于0.01 GeV−10 GeV之间的质量,当前LHCb数据和未来的COHERENT数据具有最佳灵敏度,除非与第一代和第二代轻子的Z′耦合被抑制,在这种情况下DUNE和T2HK具有最佳灵敏度。对于大约 5 MeV−20 MeV 之间的 Z′ 质量,DUNE 和 T2HK 具有最佳灵敏度。我们还展示了 COHERENT 和 LHC 数据的联合分析如何限制此类模型。
We study how nonstandard neutrino interactions (NSI) may be probed by a combination of coherent elastic neutrino-nucleus scattering, neutrino oscillation and collider data, from COHERENT, DUNE, T2HK and the high-luminosity (HL) LHC. We focus on NSI induced by a new flavored gauge boson Z′ in a generic anomaly-free ultraviolet-complete model. For Z′ masses above 10 GeV, the HL-LHC has the best sensitivity regard-less of the flavor structure of the model. For masses between 0.01 GeV− 10 GeV, current LHCb data and future COHERENT data have the best sensitivity unless the Z′ couplings to the first and second generation leptons are suppressed, in which case DUNE and T2HK have the best sensitivity. For Z′ masses between about 5 MeV− 20 MeV, DUNE and T2HK have the best sensitivity. We also show how joint analyses of COHERENT and LHC data may constrain such models.