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تسجيل مستخدم جديدDouble Transverse-Spin Asymmetries for Small-Q_T Drell-Yan Pair Production in pbar{p} Collisions
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تأليف
Hiroyuki Kawamura
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We discuss the double-spin asymmetries in transversely polarized Drell-Yan process, calculating all-order gluon resummation corrections up to the next-to-leading logarithmic accuracy. This resummation is relevant when the transverse-momentum $Q_T$ of the produced lepton pair is small, and reproduces the (fixed-order) next-to-leading QCD corrections upon integrating over $Q_T$. The resummation corrections in $pbar{p}$-collision behave differently compared with $pp$-collision cases, and are small at the kinematics in the proposed GSI experiments. This fact allows us to predict large value of the double-spin asymmetries at GSI, using recent empirical information on the transversity.
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اقرأ أيضاً
We discuss the double-spin asymmetries in transversely polarized Drell-Yan process, calculating all-order gluon resummation corrections up to the next-to-leading logarithmic accuracy. This resummation is relevant when the transverse-momentum Q_T of t
he produced lepton pair is small, and reproduces the (fixed-order) next-to-leading QCD corrections upon integrating over Q_T. The resummation corrections behave differently between pp- and pbar{p}-collision cases and are small for the latter case at the kinematics in the proposed GSI experiments. This fact allows us to predict large value of the double-spin asymmetries at GSI, using the recent empirical information on the transversity.
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