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102 papers · 1 filter
Measurements of the branching fractions and CP-asymmetries of B- --> D0_(CP) K- decays
The BABAR Collaboration, B. Aubert
We present a study of the decay B- --> D0_(CP) K- and its charge conjugate, where D0_(CP) is reconstructed in CP-even, CP-odd, and non-CP flavor eigenstates, based on a sample of 2…
Electromagnetic vertex function of the pion at T > 0
J. van der heide, J. H. Koch, E. Laermann
The matrix element of the electromagnetic current between pion states is calculated in quenched lattice QCD at a temperature of . The nonperturbatively improved Sheik…
Improved Measurement of the b-bbar Production Cross Section in 920 GeV Fixed-Target Proton-Nucleus Collisions
B Collaboration, I. Abt
A new measurement of the b-bbar production cross section in 920 GeV proton-nucleus collisions is presented by the HERA-B collaboration. The b-bbar production is tagged via inclusiv…
Measurement of the J/Psi Production Cross Section in 920 GeV/c Fixed-Target Proton-Nucleus Interactions
B collaboration
The mid-rapidity (dsigma_(pN)/dy at y=0) and total sigma_(pN) production cross sections of J/Psi mesons are measured in proton-nucleus interactions. Data collected by the HERA-B ex…
Search for rare quark-annihilation decays, B --> Ds(*) Phi
The BABAR Collaboration, B. Aubert
We report on searches for B- --> Ds- Phi and B- --> Ds*- Phi. In the context of the Standard Model, these decays are expected to be highly suppressed since they proceed through ann…
First measurement of interference fragmentation on a transversely polarized hydrogen target
P. B. van der Nat
The HERMES experiment has measured for the first time single target-spin asymmetries in semi-inclusive two-pion production using a transversely polarized hydrogen target. These asy…