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28 papers · 2 filters
Bounds on R-parity violating supersymmetric couplings from leptonic and semi-leptonic meson decays
H. K. Dreiner, M. Kramer, Ben O'Leary
We present a comprehensive update of the bounds on R-Parity violating supersymmetric couplings from lepton-flavour- and lepton-number-violating decay processes. We consider tau and…
Aspects of radiative K^+_e3 decays
Bastian Kubis, Eike H. Müller, Jürg Gasser +1
We re-investigate the radiative charged kaon decay K+- --> pi0 e+- nu_e gamma in chiral perturbation theory, merging the chiral expansion with Low's theorem. We thoroughly analyze…
Higher Twist Effects in Photon-Photon Collisions
A. I. Ahmadov, I. Boztosun, A. Soylu +1
In this article, we investigate the contribution of the high twist Feynman diagrams to the large single pseudoscalar and vector mesons inclusive production cross section in…
Supersymmetric NLO QCD Corrections to Resonant Slepton Production and Signals at the Tevatron and the LHC
H. K. Dreiner, S. Grab, M. Krämer +1
We compute the total cross section and the transverse momentum distribution for single charged slepton and sneutrino production at hadronic colliders including NLO supersymmetric a…
Discovery potential of radiative neutralino production at the ILC
Herbi K. Dreiner, Olaf Kittel, Ulrich Langenfeld
We study radiative neutralino production e^+e^- \to \tildeχ^0_1 \tildeχ^0_1γat the linear collider with longitudinally polarised beams. We consider the Standard Model background fr…
Stringy origin of non-Abelian discrete flavor symmetries
Tatsuo Kobayashi, Hans Peter Nilles, Felix Plöger +2
We study the origin of non-Abelian discrete flavor symmetries in superstring theory. We classify all possible non-Abelian discrete flavor symmetries which can appear in heterotic o…