Zobrazeno 1 - 10
of 442
pro vyhledávání: '"Ma, Xiao Dong"'
Most studies on baryon number violating (BNV) processes in the literature focus on free or bound nucleons in nuclei, with limited attention given to the decay of bound atoms. Given that hydrogen is the most abundant atom in the universe, it is partic
Externí odkaz:
http://arxiv.org/abs/2412.20774
We investigate the impact of effective interactions of dimension-8 (dim-8) operators in the standard model effective field theory (SMEFT) on neutral meson mixing, focusing on the $K^0-\bar K^0$, $B_{d,s}-\bar B_{d,s}$, and $D^0-\bar D^0$ systems. Wit
Externí odkaz:
http://arxiv.org/abs/2409.10305
In this paper, we systematically investigate the general dark matter-electron interactions within the framework of effective field theories (EFT). We consider both the non-relativistic (NR) EFT and the relativistic EFT descriptions of the interaction
Externí odkaz:
http://arxiv.org/abs/2406.10912
Autor:
Ge, Shao-Feng, Ma, Xiao-Dong
We propose the nucleon consumption induced by dark matter (DM) as a new scenario to overcome the energy threshold of direct detection. It can be realized with proton ($\chi + p \rightarrow \chi + \ell^+$) or neutron ($\chi + n \rightarrow \chi + \nu$
Externí odkaz:
http://arxiv.org/abs/2406.00445
Publikováno v:
Phys. Rev. D 110, L091701 (2024)
In this Letter we revisit general dark matter (DM)-bound-electron interactions studied previously in the influential work [R. Catena {\it et al.,} Atomic responses to general dark matter-electron interactions, Phys. Rev. Res. 2, 033195 (2020)] For th
Externí odkaz:
http://arxiv.org/abs/2405.04855
Recently Belle II reported the first measurement of $B^+\to K^++{\rm invisible (inv)}$, which is $2.7\sigma$ above the standard model (SM) prediction. If confirmed, this calls for new physics beyond SM. In the SM, the invisible particles are neutrino
Externí odkaz:
http://arxiv.org/abs/2403.12485
Effective field theory (EFT) provides a model-independent framework for interpreting the results of dark matter (DM) direct detection experiments. In this study, we demonstrate that the two fermionic DM-quark tensor operators, $(\bar{\chi} i\sigma^{\
Externí odkaz:
http://arxiv.org/abs/2401.05005
Belle II has recently reported the new measurement ${\cal B}(B^+\to K^+\nu\bar\nu)=(2.3\pm0.7)\times 10^{-5}$ \cite{Belle-II:2023esi} which is two times larger than their previous result (although consistent within errors) and about $2.7\,\sigma$ hig
Externí odkaz:
http://arxiv.org/abs/2309.12741
We introduce the effective field theory of two different light dark particles interacting with the standard model (SM) light states in a single vertex, termed dark sector effective field theory (DSEFT). We focus on the new light particles with spin u
Externí odkaz:
http://arxiv.org/abs/2309.12166
Fermionic dark matter can be pairly produced and hence searched with missing energy at colliders. We extend such probe to the associated production of a neutrino and a dark sector fermion at the future $e^+ e^-$ colliders such as CEPC, FCC-ee, ILC, a
Externí odkaz:
http://arxiv.org/abs/2306.00657