Angular distribution of leptons from the decay of massive vector bosons

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dc.creatorBerger, Edmond L.
dc.creatorQiu, Jian-Wei
dc.creatorRodriguez-Pedraza, Ricardo A.
dc.date2007-07-20
dc.date2007-09-23
dc.date.accessioned2026-07-07T11:17:58Z
dc.date.available2026-07-07T11:17:58Z
dc.descriptionWe examine the transverse momentum $Q_\perp$ dependence of the helicity structure functions for massive vector bosons of mass $Q$ in hadron reactions. We demonstrate that large logarithmic terms of the form $\ln(Q/Q_\perp)$ in the helicity structure functions have the same origin as the logarithmic terms in the angular-integrated cross section and that they can be resummed to all orders in the strong coupling $α_s$, in the same way as the angular-integrated cross section. As a consequence of current conservation, the resummed part of the helicity structure functions preserves the Lam-Tung relation as a function of $Q_\perp$ to all orders in $α_s$.
dc.description4 pages; a few changes in wording; one reference added. Version in press at Phys. Lett. B
dc.identifierhttps://arxiv.org/abs/0707.3150
dc.identifierhttp://arxiv.org/abs/0707.3150
dc.identifierPhys.Lett.B656:74-78,2007
dc.identifierdoi:10.1016/j.physletb.2007.09.008
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193190
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleAngular distribution of leptons from the decay of massive vector bosons
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