114 citations · 174 across the 15 of their papers we have counts for
15 papers
Lorentz- and CPT-violating effects in Penning traps at linear boost
Ariam J. Acevedo-Lopez, Yunhua Ding, Kaito Iwasaki +1
We present in this work an analysis of Lorentz- and CPT-violating signals at linear boost order in Penning-trap experiments. The theory of quantum electrodynamics with Penning trap…
Enhanced cosmic-ray antihelium production from dark matter annihilation through light mediators
Yu-Chen Ding, Nan Li, Yu-Feng Zhou
Cosmic-ray (CR) antihelium is an important probe for the indirect search of dark matter (DM) annihilation in the Galaxy. However, due to stringent constraints from the measurements…
Searches for Lorentz and CPT Violation with Confined Particles
Yunhua Ding
An overview of recent progress on searches for Lorentz- and CPT-violating signals with confined particles and antiparticles in Penning traps is presented. In the context of the Sta…
Consistent explanation for the cosmic-ray positron excess in -wave Breit-Wigner enhanced dark matter annihilation
Yu-Chen Ding, Yu-Lin Ku, Chun-Cheng Wei +1
Dark matter (DM) annihilation in the galactic halo can be enhanced relative to that in the early Universe due to the Breit-Wigner enhancement, if the DM particles annihilate throug…
Penning-Trap Searches for Lorentz and CPT Violation
Yunhua Ding, Teague D. Olewiler, Mohammad Farhan Rawnak
An overview of recent progress on testing Lorentz and CPT symmetry using Penning traps is presented. The theory of quantum electrodynamics with Lorentz-violating operators of mass…
Consistent explanation for the cosmic-ray positron excess in p-wave Sommerfeld-enhanced dark matter annihilation
Yu-Chen Ding, Yu-Lin Ku, Chun-Cheng Wei +1
Sommerfeld-enhanced dark matter (DM) annihilation through -wave has been widely considered as a consistent explanation for both the observed cosmic-ray (CR) positron excess and…
Lorentz and CPT tests with charge-to-mass ratio comparisons in Penning traps
Yunhua Ding, Mohammad Farhan Rawnak
Applications of the general theory of quantum electrodynamics with Lorentz- and CPT-violating operators of mass dimensions up to six are presented to Penning-trap experiments compa…
Implications of a possible TeV break in the cosmic-ray electron and positron flux
Yu-Chen Ding, Nan Li, Chun-Cheng Wei +2
A TeV spectral break in the total flux of cosmic-ray electrons and positrons (CREs) at which the spectral power index softens from to has been observed by H.E.S.S…
The high energy window of probing dark matter with cosmic-ray antideuterium and antihelium
Yu-Chen Ding, Nan Li, Chun-Cheng Wei +1
Cosmic-ray (CR) anti-nuclei are often considered as important observables for dark matter (DM) indirect detections at low kinetic energies below GeV per nucleon. Since the primary…
Lorentz and CPT Tests using Penning Traps
Yunhua Ding
The theoretical prospects for quantum electrodynamics with Lorentz-violating operators of mass dimensions up to six are revisited in this work. The dominant effects due to Lorentz…
Comparative Penning-Trap Tests of Lorentz and CPT Symmetry
Yunhua Ding
The theoretical and experimental prospects for Lorentz- and CPT-violating quantum electrodynamics in Penning traps are reviewed in this work. With the recent reported results for t…
Notes on diffusive and shear quasinormal modes of black branes
Yu-Chen Ding, Li Li, Towe Wang
In the literature, to extract the dispersion relation of low-frequency quasinormal modes in both diffusive and shear channels, it is a customary recipe to assume firstly $ω\sim\mat…
Action growth rates of black holes in the Chern-Simons modified gravity
Yu-Chen Ding, Towe Wang
Among many modified gravity theories, the Chern-Simons modified gravity stands out as one of the few examples whose Dirichlet boundary problem has been well studied. Known solution…
Testing Lorentz and CPT Symmetries in Penning Traps
Yunhua Ding
A modified Dirac equation with general Lorentz- and CPT-violating operators in the electromagnetic field is studied. Constraints on and possible sensitivities to Lorentz-violating…
Lorentz-violating spinor electrodynamics and Penning traps
Yunhua Ding, Alan Kostelecky
The prospects are explored for testing Lorentz- and CPT-violating quantum electrodynamics in experiments with Penning traps. We present the Lagrange density of Lorentz-violating sp…