Drell-Yan process with jet vetoes: breaking of generalized factorization
نویسندگان
چکیده
منابع مشابه
The Drell - Yan Process and Factorization in Impact Parameter Space ∗
The cross section for Drell-Yan pair production in the limit of small xtarget is derived in the rest frame of the target hadron. Our calculation is based on the fundamental quantity σ(ρ), the cross section for the scattering of a qq̄-pair with fixed transverse separation ρ off a hadronic target. As in deep inelastic scattering the result can be given in terms of integrals of σ(ρ). This is consis...
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We show that initial state interactions violate the factorization conjecture for the Drell-Yan process order by order in perturbation theory. We also discuss the effects of elastic and inelastic initial state interactions on the observed cross sections. A Talk Presented by G. T. Bodwin at the 1981 Banff Summer School on Particles and Fields Alberta, Canada, August 16-28, 1981 * Work supported b...
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The results of a recent calculation of the QCD corrections to the longitudinally polarized Drell-Yan process are summarized. In addition to the parity conserving double spin asymmetry which is already accessible in the Drell-Yan production of lepton pairs at fixed target energies, we consider parity violating single spin asymmetries appearing only in the production of massive vector bosons at p...
متن کاملEnergy Loss in Nuclear Drell-Yan Process
By means of the nuclear parton distributions which can be used to provide a good explanation for the EMC effect in the whole x range, we investigate the energy loss effect in nuclear Drell-Yan process. When the cross section of lepton pair production is considered varying with the center-of-mass energy of the nucleon-nucleon collision, we find that the nuclear Drell-Yan(DY) ratio is suppressed ...
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Hard processes with polarized nucleon beams enable us to study spin-dependent dynamics of QCD and the spin structure of nucleon. The helicity distribution ∆q(x) of quarks within nucleon has been measured in polarized DIS experiments, and ∆G(x) of gluons has also been estimated from the scaling violations of them. On the other hand, the transversity distribution δq(x), i.e. the distribution of t...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2015
ISSN: 1029-8479
DOI: 10.1007/jhep10(2015)189