Fiducial qT resummation of color-singlet processes at N3LL+NNLO

被引：46
作者：
Becher, Thomas [1 ]
Neumann, Tobias [2 ,3 ]
机构：
[1] Univ Bern, Inst Theoret Phys, Albert Einstein Ctr Fundamental Phys, Sidlerstr 5, CH-3012 Bern, Switzerland
[2] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA
[3] IIT, Dept Phys, Chicago, IL 60616 USA
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 2021卷 / 03期
基金：
瑞士国家科学基金会;
关键词：
NLO Computations; QCD Phenomenology; TRANSVERSE-MOMENTUM RESUMMATION; PARTON DISTRIBUTIONS; BOSON PRODUCTION; PREDICTIONS; NNLO;
D O I：
10.1007/JHEP03(2021)199
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We present a framework for q(T) resummation at (NLL)-L-3+NNLO accuracy for arbitrary color-singlet processes based on a factorization theorem in SCET. Our implementation CuTe-MCFM is fully differential in the Born kinematics and matches to large-q(T) fixed-order predictions at relative order alpha s2. It provides an efficient way to estimate uncertainties from fixed-order truncation, resummation, and parton distribution functions. In addition to W-+/-, Z and H production, also the diboson processes gamma gamma, Z gamma, ZH and (WH)-H-+/- are available, including decays. We discuss and exemplify the framework with several direct comparisons to experimental measurements as well as inclusive benchmark results. In particular, we present novel results for gamma gamma and Z gamma at (NLL)-L-3+NNLO and discuss in detail the power corrections induced by photon isolation requirements.
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页数：58
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