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Title: Kinematics of t-channel and Photon Radiation Processes in carlomat
Authors: Kołodziej, Karol
Keywords: kinematics; t-channel; physics
Issue Date: 2019
Citation: "Acta Physica Polonica B" Vol. 50, no 11 (2019), s. 1971-1981
Abstract: The automatic generation of multichannel Monte Carlo phase-space integration routines of carlomat, which up to now took into account only mappings of ∼ 1∕s or Breit–Wigner behaviour of the s-channel diagrams, is being supplemented with the parameterizations which map away the t-channel, soft and collinear photon or gluon emission. In order to improve numerical stability, the quadruple precision versions of the routines for computation of the helicity amplitudes and phase-space parameterizations have been written and calls to them are being implemented in the code generation part of the program.
DOI: 10.5506/APhysPolB.50.1971
ISSN: 0587-4254
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