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9 papers · 2 filters
Excited Baryon Production and Decays
Carl E. Carlson
We consider decays of the lowest-lying positive parity 56-plet and negative parity bf 70-plet excited baryons. For the 70-plet, we include both single-quark and two-quark decay ope…
Evaluating matrix elements relevant to some Lorenz violating operators
Vahagn Nazaryan
Carlson, Carone and Lebed have derived the Feynman rules for a consistent formulation of noncommutative QCD. The results they obtained were used to constrain the noncommutativity p…
Single Spin Asymmetry in Open Charm Photoproduction and Decay as a Test of pQCD
N. Ya. Ivanov, P. E. Bosted, K. Griffioen +1
We analyze the possibility of measuring the single spin asymmetry (SSA) in open charm production by linearly polarized photons in the planned E160/E161 experiments at SLAC using th…
Supersymmetric Noncommutative QED and Lorentz Violation
Carl E. Carlson, Christopher D. Carone, Richard F. Lebed
We consider Lorentz-violating operators induced at the loop level in softly-broken supersymmetric noncommutative QED. Dangerous operators forbidden in the supersymmetric limit are…
Tau Decays to Mu + Eta in Supersymmetric Models
Marc Sher
The existence of large ν_μ-ν_τmixing suggests the likelihood of large smuon-stau mixing in supersymmetric models, leading to μand τnumber violation. In addition to interesting sign…
τ- μFlavor Violation as a Probe of the Scale of New Physics
Deirdre Black, Tao Han, Hong-Jian He +1
Motivated by the recent strong experimental evidence of large ν_mu-ν_tau neutrino mixing, we explore current bounds on the analogous mixing in the charged lepton sector. We present…