TY - JOUR
T1 - A QCD description of the ATLAS jet veto measurement
AU - Hatta, Y.
AU - Marquet, C.
AU - Royon, C.
AU - Soyez, G.
AU - Ueda, T.
AU - Werder, D.
PY - 2013/3/12
Y1 - 2013/3/12
N2 - 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-pT 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(αs2) and show that the perturbative series is unstable at large rapidity intervals.
AB - 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-pT 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(αs2) and show that the perturbative series is unstable at large rapidity intervals.
U2 - 10.1103/PhysRevD.87.054016
DO - 10.1103/PhysRevD.87.054016
M3 - Article
AN - SCOPUS:84875157163
SN - 1550-7998
VL - 87
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 5
M1 - 054016
ER -