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156 papers · 1 filter
Search for anomalous top quark couplings with the D0 detector
D0 Collaboration, V. Abazov
Anomalous Wtb couplings modify the angular correlations of the top quark decay products and change the single top quark production cross section. We present limits on anomalous top…
Determining the CP parity of Higgs bosons at the LHC in the to 1-prong decay channels
Stefan Berge, Werner Bernreuther
We propose a method for determining the CP nature of a neutral Higgs boson or spin-zero resonance at the CERN Large Hadron Collider (LHC) in its decay channel.…
The Top Quark Decay Vertex in Standard Model Extensions
Werner Bernreuther, Patrick Gonzalez, Martin Wiebusch
New physics interactions can affect the strength and structure of the vertex. We investigate the magnitudes and phases of "anomalous" contributions to this vertex in a two-Hi…
A Scintillating Fiber Tracker With SiPM Readout
G. Roper Yearwood, B. Beischer, Ch. -H. Chung +11
We present a prototype for the first tracking detector consisting of 250 micron thin scintillating fibers and silicon photomultiplier (SiPM) arrays. The detector has a modular desi…
A real-time study of diffusive and ballistic transport in spin-1/2 chains using the adaptive time-dependent density matrix renormalization group method
S. Langer, F. Heidrich-Meisner, J. Gemmer +2
Using the adaptive time-dependent density matrix renormalization group method, we numerically study the spin dynamics and transport in one-dimensional spin-1/2 systems at zero temp…
PCAC and coherent pion production by low energy neutrinos
Ch. Berger, L. M. Sehgal
Coherent pi^+ and pi^0 production in low energy neutrino reactions is discussed in the framework of the partially conserved axial vector current theory (PCAC). The role of lepton m…