scholarly journals Next-to-leading order calculation for jets defined by a maximized jet function

2015 ◽  
Vol 91 (3) ◽  
Author(s):  
Tom Kaufmann ◽  
Asmita Mukherjee ◽  
Werner Vogelsang
Keyword(s):  
Leading Order ◽  
Order Calculation

Next-to-Next-to-Leading Order Calculation of Valence Quark Polarization in the Valon Model

2018 ◽  
Vol 58 (1) ◽  
pp. 157-166 ◽  
Author(s):  
F. Taghavi-Shahri ◽  
Z. Alizadeh Yazdi ◽  
S. Atashbar Tehrani
Keyword(s):  
Valence Quark ◽  
Leading Order ◽  
Order Calculation

HIGH pT JET PRODUCTION IN pp COLLISIONS

1995 ◽  
Vol 10 (20n21) ◽  
pp. 3071-3085 ◽  
Author(s):  
K.J. ESKOLA ◽  
X.-N. WANG
Keyword(s):  
Cross Sections ◽  
Leading Order ◽  
Pp Collisions ◽  
Production Rates ◽  
Parton Distributions ◽  
Jet Production ◽  
Order Calculation ◽  
Jet Cross Sections

Production rates of large pT jets inpp collisions at RHIC and LHC energies are studied using the next-to-leading order calculation of S.D. Ellis, Z. Kunszt and D. Soper. The computed inclusive one-jet cross sections are compared against the CERN and Fermilab jet data from [Formula: see text] and pp collisions. The dependence of the results on the choice of parton distributions and renormalization/factorization scales is investigated.

scholarly journals Groomed jet mass as a direct probe of collinear parton dynamics

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
Daniele Anderle ◽  
Mrinal Dasgupta ◽  
Basem Kamal El-Menoufi ◽  
Marco Guzzi ◽  
Jack Helliwell
Keyword(s):  
Mass Distribution ◽  
Leading Order ◽  
Order Calculation ◽  
Fixed Order ◽  
Collinear Limit

AbstractWe study the link between parton dynamics in the collinear limit and the logarithmically enhanced terms of the groomed jet mass distribution, for jets groomed with the modified mass-drop tagger (mMDT). While the leading-logarithmic (LL) result is linked to collinear evolution with leading-order splitting kernels, here we derive the NLL structure directly from triple-collinear splitting kernels. The calculation we present is a fixed-order calculation in the triple-collinear limit, independent of resummation ingredients and methods. It therefore constitutes a powerful cross-check of the NLL results previously derived using the SCET formalism and provides much of the insight needed for resummation within the traditional QCD approach.

scholarly journals NEXT-TO-NEXT-TO-LEADING-ORDER SOFT-GLUON CORRECTIONS IN DIRECT PHOTON PRODUCTION

2004 ◽  
Vol 19 (01) ◽  
pp. 149-158 ◽  
Author(s):  
NIKOLAOS KIDONAKIS ◽  
J. F. OWENS
Keyword(s):  
Scale Dependence ◽  
Photon Production ◽  
Direct Photon ◽  
Experimental Results ◽  
Soft Gluon ◽  
Leading Order ◽  
Convergence Properties ◽  
Good Convergence ◽  
Order Calculation ◽  
Direct Photon Production

Previous work on soft-gluon resummation for direct photon production is extended to include additional subleading logarithmic terms through [Formula: see text] and some representative comparisons are made to experimental results from the E-706 and UA-6 Collaborations. The additional terms are small in magnitude, indicating good convergence properties to the level of accuracy calculated. The scale dependence remains much smaller than that of the next-to-leading-order calculation.

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