A QCD description of the ATLAS jet veto measurement
2013 (English)In: Physical Review D, ISSN 1550-7998, Vol. 87, no 5, 054016- p.Article in journal (Refereed) Published
We present a new QCD description of the ATLAS jet veto measurement, using the Banfi-Marchesini-Smye equation to constrain the interjet QCD radiation. This equation resums emissions of soft gluons at large angles, at leading-logarithmic accuracy, and accounts for both the so-called Sudakov and nonglobal logarithms. We show that this approach is able to reproduce, with no fitting parameters, the fraction of high-p(T) forward-backward dijet events which do not contain additional hard emissions in the interjet rapidity range. We also compute the gap fraction in fixed-order perturbation theory to O(alpha(2)(s)) and show that the perturbative series is unstable at large rapidity intervals.
Place, publisher, year, edition, pages
2013. Vol. 87, no 5, 054016- p.
IdentifiersURN: urn:nbn:se:uu:diva-198388DOI: 10.1103/PhysRevD.87.054016ISI: 000316108400008OAI: oai:DiVA.org:uu-198388DiVA: diva2:616177