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13 papers · 2 filters
Breakdown of Conventional Factorization for Isolated Photon Cross Sections
Edmond L. Berger, Xiaofeng Guo, Jianwei Qiu
Using as an example, we show that the conventional factorization theorem in perturbative quantum chromodynamics breaks down for isolated photon cross sectio…
Nuclear Dependence in Direct Photon Production
Xiaofeng Guo, Jianwei Qiu
We calculate the nuclear dependence of direct photon production in hadron-nucleus collisions. In terms of a multiple scattering picture, we factorize the cross section for direct p…
The decays within the standard model
L. S. Littenberg, G. Valencia
We study the reactions within the minimal standard model. We use isospin symmetry to relate the matrix elements to the form factors measured in $K_{\e…
Study of Anomalous Couplings at a ~GeV Linear Collider with Polarized Beams
A. A. Likhoded, T. Han, G. Valencia
We consider the possibility of observing deviations from the Standard Model gauge-boson self-couplings at a future ~GeV linear collider. We concentrate on the case i…
Strongly-Interacting Electroweak Sector --Model Independent Approaches--
M. Golden, T. Han, G. Valencia
Phenomenology of a strongly-interacting electroweak symmetry breaking sector at current and future colliders is reviewed.
Limits on Non-Standard Top Quark Couplings from Electroweak Measurements
S. Dawson, G. Valencia
We calculate the typical size of loop corrections to electroweak observables arising from non-standard and vertices. We use an effective Lagrangian for…