Exploring the effects of scalar non standard interactions on the CP violation sensitivity at DUNE

被引：17

作者：

Medhi, Abinash ^{[1
]}

Dutta, Debajyoti ^{[2
]}

Devi, Moon Moon ^{[1
]}

机构：

[1] Tezpur Univ, Dept Phys, Sonitpur 784028, Assam, India

[2] Assam Don Bosco Univ, Dept Phys, Sonapur 782402, Assam, India

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2022年 / 2022卷 / 06期

关键词：

Neutrino Physics; Beyond Standard Model; CP violation; NONSTANDARD NEUTRINO INTERACTIONS; OSCILLATION EXPERIMENTS; SOLAR NEUTRINOS; SIMULATION; MATTER; MODEL;

D O I：

10.1007/JHEP06(2022)129

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：

The Neutrino oscillations have provided an excellent opportunity to study new-physics beyond the Standard Model, popularly known as BSM. The unknown couplings involving neutrinos, termed non-standard interactions (NSI), may appear as 'new-physics' in different neutrino experiments. The neutrino NSI offers significant effects on neutrino oscillations and CP-sensitivity, which may be probed in various neutrino experiments. The idea of neutrinos coupling with a scalar has evolved recently and looks promising. The effects of scalar NSI may appear as a perturbation to the neutrino mass matrix in the neutrino Hamiltonian. It modifies the neutrino mass matrix and may provide a direct possibility of probing neutrino mass models. As the scalar NSI affects the neutrino mass matrix in the Hamiltonian, its effect is energy independent. Moreover, the matter effects due to scalar NSI scales linearly with the matter density. In this work, we have performed a model-independent study of the effects of scalar NSI at long baseline neutrino experiments, taking DUNE as a case study. We have performed such a thorough study for DUNE for the first time. Various neutrino parameters may get affected due to the inclusion of scalar NSI as it modifies the effective mass matrix of neutrinos. We have explored the impact of scalar NSI in neutrino oscillations and its impact on the measurements of various mixing parameters. We have probed the effects of scalar NSI on different oscillation channels relevant to the experiment. We have also explored the impact of various possible elements in the scalar NSI term on the CP-violation sensitivity at DUNE.

引用

页数：22

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