Beam Thrust Cross Section for Drell-Yan Production at Next-to-Next-to-Leading-Logarithmic Order
Name
Stewart-2011-Beam Thrust Cross Section for Drell-Yan Production at Next-to-Next-to-Leading-Logarithmic Order.pdf
Size
421.52 KB
Format
Adobe PDF
Checksum (MD5)
da58490835649849c5b222baad04e667
Author(s)
Tackmann, Frank
Waalewijn, Wouter Jonathan
Stewart, Iain W
Date Issued
January 2011
Journal
Physical review letters
Publisher
American Physical Society
Citation
Stewart, Iain, Frank Tackmann, and Wouter Waalewijn. “Beam Thrust Cross Section for Drell-Yan Production at Next-to-Next-to-Leading-Logarithmic Order.” Physical Review Letters 106.3 (2011) : n. pag. © 2011 American Physical Society
Version
Final published version
Abstract
At the LHC and Tevatron strong initial-state radiation (ISR) plays an important role. It can significantly affect the partonic luminosity available to the hard interaction or contaminate a signal with additional jets and soft radiation. An ideal process to study ISR is isolated Drell-Yan production, pp→Xℓ+ℓ- [pp→ l superscript + l superscript -] without central jets, where the jet veto is provided by the hadronic event shape beam thrust τB [T subscript B]. Most hadron collider event shapes are designed to study central jets. In contrast, requiring τB≪1 [T subscript B <<1] provides an inclusive veto of central jets and measures the spectrum of ISR. For τB≪1 [T subscript B <<1] we carry out a resummation of αsnlnmτB [alpha superscript n subscript s 1 n superscript m T subscript B] corrections at next-to-next-to-leading-logarithmic order. This is the first resummation at this order for a hadron-hadron collider event shape. Measurements of τB [T subscript B] at the Tevatron and LHC can provide crucial tests of our understanding of ISR and of τB’s [T subscript B]'s utility as a central jet veto.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.106.032001
