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Theoretical considerations for a jet simulation with spin

Abstract : A first part lists basic rules, taken from the string- and multiperipheral models, that a recursive quark fragmentation model should obey. A second part describes spin effects given by the classical "string + 3P0" mechanism of quark-antiquark pair creation, in pseudoscalar and vector meson production: Collins effect, jet handedness and "hidden spin" effects in unpolarized experiments. The last part constructs a recursive quantum-mechanical model of spin-dependent fragmentation. In a "ab initio" approach an integral equation must be solved as a preliminary task. With a "renormalized input", this task is reduced to an ordinary integration. A spin-dependent generalization of the symmetric Lund model is obtained.
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Submitted on : Friday, February 28, 2014 - 12:07:41 PM
Last modification on : Tuesday, November 19, 2019 - 2:40:28 AM
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X. Artru, Z. Belghobsi. Theoretical considerations for a jet simulation with spin. XV Advanced Research Workshop on High Energy Spin Physics, Oct 2013, Dubna, Russia. pp.33-40. ⟨in2p3-00953539⟩

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