中微子及相关新物理研讨会 (NuPhyR)

The original modular flavor symmetry requires supersymmetry to enforce the Yukawa couplings to be holomorphic modular forms. The non-holomorphic modular symmetry is a generation in which supersymmetry is unnecessary in principle. In this talk, we shall present motivation, the formalism and application of non-holomorphic modular symmetry. A predictive model for both quarks and leptons will be...

Many Baryogenesis mechanisms have been proposed to address the baryon asymmetry of the universe, of which the Leptogenesis mechanism has received widespread attention due to the flourishing development of the neutrino physics. In this talk I will give a brief review on recent progress of the Leptogenesis mechanism.

We present an automatic renormalization group equations (RGEs) solver, D7RGESolver, designed for the precise numerical solution of one-loop RGEs of dim-7 operators within the SMEFT. This tool is capable of calculating the RGE effects of dim-5 and dim-7 SMEFT operators between any two scales above the electroweak scale. We take the nuclear neutrinoless double beta ($0\nu\beta\beta$) decay...

Leptogenesis provides an elegant mechanism to explain the observed baryon asymmetry of the Universe (BAU), yet its experimental verification remains challenging due to requirements of either extremely heavy right-handed neutrinos or precisely fine-tuned mass splittings.
We present a scenario where an additional scalar field, coupled to both the Higgs and right-handed neutrinos (RHNs),...

I will discuss supernova constraints on millicharged particles and axions, including both supernova cooling limits and low-energy supernova constraints.

In the construction of future lunar scientific stations, radio arrays can be deployed on the lunar surface and around subsurface lava tubes to detect high-energy neutrinos. The Askaryan effect, generated by the interaction between high-energy neutrinos and lunar regolith, produces radio emissions. On Earth, detecting radio signals from this effect is subject to significant radio frequency...

Core-collapse supernovae (CCSNe) mark the death of massive stars greater than about 8 solar masses. They are the birthplaces of neutron stars and black
holes, as well as the factories of heavy elements. The physical mechanism(s) driving their explosions is a premier open problem in astrophysics. In this talk, I will first introduce recent global efforts in advanced computer simulations that...

The study of nuclear double beta decay provides a uniquely sensitive window into physics beyond the Standard Model. While the two-neutrino mode, a rare second-order weak process, has been observed in several isotopes, the search for the neutrinoless mode remains a paramount objective in particle and nuclear physics. The observation of this decay would be a landmark discovery, as it violates...

In 2021, LHAASO observed a large number of PeV cosmic ray candidates in the Milky Way. We proposed to build a telescope with at least 30 times the sensitive volume of the IceCube detector, so as to observe those LHAAASO sources. In order to realize this project, we innovatively put forward a photosensitive detector unit based on a photomultiplier tube with a maximum photosensitive area of 20...

Over the past ten years, several breakthroughs have been made in multi-messenger astronomy. Thanks to the IceCube Neutrino Observatory, the detection of astrophysical neutrinos was proved to be practical. However, due to the limited statistics and field of view, only a few sources have been associated with IceCube neutrinos, making new and larger neutrino telescopes necessary. NEON is a...

Collider neutrinos open a new window into high-energy neutrino interactions and forward physics at hadron colliders. In this talk, I will first outline the motivation for studying collider neutrinos and introduce the LHC experiments FASER$\nu$ and SND@LHC. I will then discuss the production and detection of collider neutrinos, along with estimates of their fluxes and interaction rates at...

Charged-current quasielastic neutrino scattering is the signal process in neutrino oscillation experiments and requires precise theoretical prediction for the analysis of modern and future experimental data, starting with the nucleon vector and axial-vector coupling constants and axial-vector form factor at higher energies. In this talk, I compare a new MINERvA measurement of this form factor...

We propose a new mechanism wherein the electron and muon masses are generated at the one-loop level following the dynamical violation of the Ising fusion rule symmetry. This rule, being the minimal symmetry required to realize our model, also plays a crucial role in the neutrino sector. There, while neutrino masses are likewise generated at one loop, the Ising fusion rule stabilizes the...

射电探测具备其它类型探测器的大部分优点，且单个造价低廉，适合大规模铺设，被认为是研究超高能粒子的理想的下一代探测技术。截至目前为止，国际上已经提出地面或高山铺设，气球和卫星搭载，月基铺设等多种探测方案。国内截至目前为止，仅一个地面铺设方案在研。本报告将探讨这些探测方案的优劣，目的是找到一个性价比高（投入较少，灵敏度高），并能与其它技术组成联合观测的实验方案。

We present a comprehensive theoretical analysis of neutrino-induced decoherence in macroscopic matter-wave interferometry experiments designed to search for dark matter and beyond-Standard Model physics. Our calculation includes contributions from the cosmic neutrino background (CνB), solar neutrinos, and reactor antineutrinos, accounting for coherent scattering processes across nuclear,...

Neutrino self-interactions (νSI) mediated by light bosonic particles can produce characteristic spectral dips in astrophysical neutrino fluxes, thereby modifying the expected energy spectrum. The high-energy astrophysical neutrino spectrum has been extensively used to probe νSI models through these distinctive features. The recent detection of the ultrahigh-energy event KM3-230213A offers a...

The detection of ultrahigh-energy neutrinos not only offers a powerful probe of cosmic-ray accelerators but also opens a new window into fundamental particle physics. Ultrahigh-energy neutrino experiments have access to unprecedented energy, time, and length scales, providing unique opportunities to deepen our understanding of yet-unrevealed aspects of the Universe. Beyond the achievements of...