Results 31 to 40 of about 106,878 (284)

FCNC B and K meson decays with light bosonic Dark Matter

Journal of High Energy Physics, 2023
We consider decays of B and K mesons into a pseudo-scalar or vector meson plus missing energy. Within the SM, these modes originate from flavor changing neutral current (FCNC) processes with two neutrinos in the final state. In this paper we consider the
Xiao-Gang He, Xiao-Dong Ma, German Valencia   +2 more
doaj   +1 more source

Theory of Rare B Decays [PDF]

, 1995
Theoretical aspects of rare $B$ decays are reviewed. The focus is on the relation between short-distance interactions and physical observables. It is argued that there remain significant uncertainties in the theoretical treatment of certain important ...
Falk, Adam F.
core   +2 more sources

More synergies from beauty, top, Z and Drell-Yan measurements in SMEFT

Journal of High Energy Physics, 2023
We perform a global analysis of Beauty, Top, Z and Drell-Yan measurements in the framework of the Standard Model effective theory (SMEFT). We work within the minimal flavor violation (MFV) hypothesis, which relates different sectors and generations ...
Cornelius Grunwald, Gudrun Hiller, Kevin Kröninger, Lara Nollen   +3 more
doaj   +1 more source

Review of Rare and Forbidden $\tau$ Decays

, 1997
This is a review of rare and forbidden decays of the $\tau$ lepton. For the rare decays, this includes new results on the chiral anomaly decay $\taupietapio$, new upper limits on the second-class-current decay $\taupieta$, and the observations of the ...
Alam, Albrecht, Arnowitt, Artuso, Aubrecht, Barbieri, Barnett, Bartelt, Bartelt, Braaten, Buskulic, Decker, Dicus, Edwards, Feynman, Gomez, Gonzalez-Garcia, Hisano, Ilakovoc, Ilakovoc, Ilakovoc, K.K. Gan, Kelley, Mophapatra, Mophapatra, Narison, Neufeld, Pati, Pich, Pilaftsis, Tisserant, Vermaseren, Weinberg, Wess, Wu   +34 more
core   +1 more source

Rare kaon decays revisited

Physics Letters B, 2004
We present an updated discussion of $K\ra \bar{l} l$ decays in a combined framework of chiral perturbation theory and Large--$N_c$ QCD, which assumes the dominance of a minimal narrow resonance structure in the invariant mass dependence of the $ \bar{l} l$ pair.
Friot, Samuel, Greynat, David, de Rafael, Eduardo   +2 more
openaire   +2 more sources

Improved Standard-Model prediction for K L → ℓ + ℓ −

Journal of High Energy Physics
We present a comprehensive calculation of the K L → γ ∗ γ ∗ form factor in dispersion theory, using input from the leptonic decays K L → ℓ + ℓ − γ, $${K}_{L}\to {{\ell}}_{1}^{+}{{\ell}}_{1}^{-}{{\ell}}_{2}^{+}{{\ell}}_{2}^{-}$$ , the hadronic mode K L ...
Martin Hoferichter, Bai-Long Hoid, Jacobo Ruiz de Elvira   +2 more
doaj   +1 more source

FCNC charmed-hadron decays with invisible singlet particles in light of recent data

Journal of High Energy Physics, 2023
The flavor-changing neutral current (FCNC) decays of charmed hadrons with missing energy (Ɇ) can serve as potentially promising hunting grounds for hints of new physics, as the standard-model backgrounds are very suppressed.
Geng Li, Jusak Tandean
doaj   +1 more source

Next-to-leading Order Calculations of the Radiative and Semileptonic Rare B Decays in the Standard Model and Comparison with Data [PDF]

, 2002
We review some selected rare B decays calculated in next-to-leading order accuracy in the Standard Model (SM). These include the radiative decays $B \to (X_s,K^*,\rho)\gamma$ and the semileptonic decays $B \to (X_s,K,K^*) \ell^+ \ell^-$, for which new ...
A. Ali, Abe, Alam, Ali, Ali, Ali, Ali, Ali, Ali, Ali, Ali, Ali, Ammar, Asatrian, Ball, Barate, Beneke, Beneke, Beneke, Bobeth, Bosch, Buchalla, Buras, Charles, Chen, Chetyrkin, Chetyrkin, Del Debbio, Falk, Gambino, Greub, Greub, Greub, Grinstein, Hagiwara, Jezabek, Kagan, Khodjamirian, Melikhov, Misiak, Narison, Soares   +41 more
core   +3 more sources

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Uniting low-energy semileptonic and hadronic anomalies within SMEFT

Journal of High Energy Physics
Two categories of four-fermion SMEFT operators are semileptonic (two quarks and two leptons) and hadronic (four quarks). At tree level, an operator of a given category contributes only to processes of the same category.
Alakabha Datta, Jacky Kumar, Suman Kumbhakar, David London   +3 more
doaj   +1 more source