181 citations · 2.1k across the 61 of their papers we have counts for
61 papers
Solar Constraints on Heavy Neutral Leptons with Mixing
Vedran Brdar, Samiur R. Mir, Xun-Jie Xu
The mixing of heavy neutral leptons (HNLs) with tau neutrinos remains largely unconstrained compared to their mixing with electron and muon neutrinos. In this work, we investigate…
Shedding light on neutrino self-interactions with solar antineutrino searches
Quan-feng Wu, Xun-Jie Xu
Solar antineutrinos are absent in the standard solar model prediction. Consequently, solar antineutrino searches emerge as a powerful tool to probe new physics capable of convertin…
constraints on light mediators coupled to neutrinos: the dilution-resistant effect
Shao-Ping Li, Xun-Jie Xu
We investigate the impact of new light particles, carrying significant energy in the early universe after neutrino decoupling, on the cosmological effective relativistic neutrino s…
Beyond Tree Level with Solar Neutrinos: Towards Measuring the Flavor Composition and CP Violation
Vedran Brdar, Xun-Jie Xu
After being produced as electron neutrinos (), solar neutrinos partially change their flavor to and en route to Earth. Although the flavor ratio of the flux…
Neutrino forces and experimental probes
Xun-Jie Xu
Neutrinos as almost massless particles could mediate long-range forces, known as neutrino forces. In this talk, I will introduce some theoretical aspects of neutrino forces, includ…
Neutrino Magnetic Moments Meet Precision Measurements
Shao-Ping Li, Xun-Jie Xu
In the early universe, Dirac neutrino magnetic moments due to their chirality-flipping nature could lead to thermal production of right-handed neutrinos, which would make a signifi…
Solar neutrino physics
Xun-Jie Xu, Zhe Wang, Shaomin Chen
As a free, intensive, weakly interacting, and well directional messenger, solar neutrinos have been driving both solar physics and neutrino physics developments for more than half…
Neutrino forces in neutrino backgrounds
Mitrajyoti Ghosh, Yuval Grossman, Walter Tangarife +2
The Standard Model predicts a long-range force, proportional to , between fermions due to the exchange of a pair of neutrinos. This quantum force is feeble and has not b…
Timing and Multi-Channel: Novel Method for Determining the Neutrino Mass Ordering from Supernovae
Vedran Brdar, Xun-Jie Xu
One of the few remaining unknowns in the standard three-flavor neutrino oscillation paradigm is the ordering of neutrino masses. In this work we propose a novel method for determin…
Probing the -philic at DUNE near detectors
Garv Chauhan, P. S. Bhupal Dev, Xun-Jie Xu
We consider a hidden gauge symmetry under which only the right-handed neutrinos () are charged. The corresponding gauge boson is referred to as the -philic $Z'…
Towards deconstructing the simplest seesaw mechanism
Sanjoy Mandal, O. G. Miranda, G. Sanchez Garcia +2
The triplet or type-II seesaw mechanism is the simplest way to endow neutrinos with mass in the Standard Model (SM). Here we review its associated theory and phenomenology, includi…
Neutrino forces and the Sommerfeld enhancement
Rupert Coy, Xun-Jie Xu, Bingrong Yu
The Sommerfeld enhancement plays an important role in dark matter (DM) physics, and can significantly enhance the annihilation cross section of non-relativistic DM particles. In th…
The Forward Physics Facility at the High-Luminosity LHC
Jonathan L. Feng, Felix Kling, Mary Hall Reno +233
High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing L…
High-energy colliders as a probe of neutrino properties
Sanjoy Mandal, O. G. Miranda, G. Sanchez Garcia +2
The mediators of neutrino mass generation can provide a probe of neutrino properties at the next round of high-energy hadron (FCC-hh) and lepton colliders (FCC-ee/ILC/CEPC/CLIC). W…
On the short-range behavior of neutrino forces beyond the Standard Model: from to , , and
Xun-jie Xu, Bingrong Yu
The exchange of a pair of neutrinos between two objects, seperated by a distance , leads to a long-range effective potential proportional to , assuming massless neutri…
Neutrino bound states and bound systems
Alexei Yu. Smirnov, Xun-Jie Xu
Yukawa interactions of neutrinos with a new light scalar boson can lead to formation of stable bound states and bound systems of many neutrinos (-clusters). For allowed valu…
Searching for new physics from SMEFT and leptoquarks at the P2 experiment
Ingolf Bischer, P. S. Bhupal Dev, Werner Rodejohann +2
The P2 experiment aims at high-precision measurements of the parity-violating asymmetry in elastic electron-proton and electron-C scatterings with longitudinally polarized e…
Dark matter produced from neutrinos
Marco Hufnagel, Xun-Jie Xu
In the presence of interactions between neutrinos and dark matter (DM), DM can potentially be produced via freeze-in from the neutrino sector. We investigate the implications of su…
Probing the muon with future beam dump experiments
Rupert Coy, Xun-Jie Xu
We consider the light explanation of the muon anomaly. Even if such a has no tree-level coupling to electrons, in general one will be induced at loop-level. We show…
Dark matter electromagnetic dipoles: the WIMP expectation
Thomas Hambye, Xun-Jie Xu
We perform a systematic study of the electric and magnetic dipole moments of dark matter (DM) that are induced at the one-loop level when DM experiences four-fermion interactions w…
Searching for bosons at the P2 experiment
P. S. Bhupal Dev, Werner Rodejohann, Xun-Jie Xu +1
The P2 experiment aims at high-precision measurements of the parity-violating asymmetry in elastic electron-proton and electron-C scatterings with longitudinally polarized e…
How dark is the -philic dark photon?
Garv Chauhan, Xun-Jie Xu
We consider a generic dark photon that arises from a hidden gauge symmetry imposed on right-handed neutrinos (). Such a -philic dark photon is naturally dark d…
Dirac neutrinos and II: the freeze-in case
Xuheng Luo, Werner Rodejohann, Xun-Jie Xu
We discuss Dirac neutrinos whose right-handed component has new interactions that may lead to a measurable contribution to the effective number of relativistic neutrino speci…
Flavoured Neutrinoless Double Beta Decay
Lukas Graf, Sudip Jana, Manfred Lindner +2
We discuss a mechanism of neutrinoless double beta decay, where neutrinos of different flavours come into play. This is realized by effective flavour-violating scalar interactions.…