G. Valencia

activity

20232025

most cited

B \to K +

invisible, dark matter, and

C P

violation in hyperon decays

14 citations · 28 across the 8 of their papers we have counts for

collaborators

Showing 2025Show all

4 papers · 1 filter

hep-ph2025★ 4 cited

CP violation in the hyperon decays $Σ \to N π$

Xiao-Gang He, Xiao-Dong Ma, Jusak Tandean +1

The study of $C P$ violation in hyperon transitions has a long history. In the early 2000s the HyperCP experiment made a major effort to seek $C P$ -odd signals in the decay sequence…

hep-ph2025

Monojet and direct detection constraints on real scalar dark matter: EFT and a simple UV completion

Arnab Roy, Michael A. Schmidt, German Valencia

We consider constraints that can be placed on certain invisible scalar particles through monojet studies at the LHC and compare them with those from direct detection experiments wh…

hep-ph2025★ 5 cited

Light dark-matter window constrained by \boldmath $K^{+} \to π^{+}$ $+$ $\neq E$

Xiao-Gang He, Xiao-Dong Ma, Jusak Tandean +1

We explore the constraints on new physics from the recent NA62 observation of the kaon decay $K^{+} \to π^{+}$ + $\neq E$ with missing energy $\neq E$ in the context of a dark-ma…

hep-ph2025★ 14 cited

$B \to K +$ invisible, dark matter, and $C P$ violation in hyperon decays

Xiao-Gang He, Xiao-Dong Ma, Jusak Tandean +1

Recently the Belle II Collaboration has reported a measurement of the $B^{+} \to K^{+} ν ν ˉ$ rate that is higher than the standard-model expectation. Since the emitted neutrinos are un…

CP violation in the hyperon decays Σ→Nπ

Monojet and direct detection constraints on real scalar dark matter: EFT and a simple UV completion

Light dark-matter window constrained by \boldmathK+→π++E

B→K+invisible, dark matter, and CP violation in hyperon decays

CP violation in the hyperon decays $Σ \to N π$

Light dark-matter window constrained by \boldmath $K^{+} \to π^{+}$ $+$ $\neq E$

$B \to K +$ invisible, dark matter, and $C P$ violation in hyperon decays