W Production in an Improved Parton-Shower Approach

Autor:	Torbjörn Sjöstrand, Gabriela Miu
Rok vydání:	1998
Předmět:	Physics Nuclear and High Energy Physics Gauge boson Particle physics High Energy Physics::Phenomenology Tevatron FOS: Physical sciences Graph High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) High Energy Physics::Experiment Resummation Parton shower Boson
DOI:	10.48550/arxiv.hep-ph/9812455
Popis:	In the description of the production properties of gauge bosons (W+/W-, Z0, gamma) at colliders, the lowest-order graph normally is not sufficient. The contributions of higher orders can be introduced either by an explicit order-by-order matrix-element calculation, by a resummation procedure or by a parton-shower algorithm. Each approach has its advantages and disadvantages. We here introduce a method that allows the parton-shower algorithm to be augmented by higher-order information, thereby offering an economical route to a description of all event properties. It is tested by comparing with the pT spectrum of W bosons at the Tevatron. Comment: 1+9 pages, 5 eps-figures, submitted to Phys. Lett. B
Databáze:	OpenAIRE
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