scholarly journals Numerical resummation at subleading color in the strongly ordered soft gluon limit

2021 ◽  
Vol 104 (3) ◽  
Author(s):  
Stefan Höche ◽  
Daniel Reichelt
Keyword(s):  
Soft Gluon

scholarly journals Covariant phase space and soft factorization in non-Abelian gauge theories

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Temple He ◽  
Prahar Mitra
Keyword(s):  
Phase Space ◽  
Ward Identity ◽  
Gauge Theories ◽  
Minkowski Spacetime ◽  
Soft Gluon ◽  
Careful Study ◽  
Abelian Gauge ◽  
Gauge Sector ◽  
Vacuum States ◽  
The One

Abstract We perform a careful study of the infrared sector of massless non-abelian gauge theories in four-dimensional Minkowski spacetime using the covariant phase space formalism, taking into account the boundary contributions arising from the gauge sector of the theory. Upon quantization, we show that the boundary contributions lead to an infinite degeneracy of the vacua. The Hilbert space of the vacuum sector is not only shown to be remarkably simple, but also universal. We derive a Ward identity that relates the n-point amplitude between two generic in- and out-vacuum states to the one computed in standard QFT. In addition, we demonstrate that the familiar single soft gluon theorem and multiple consecutive soft gluon theorem are consequences of the Ward identity.

scholarly journals Resummation and Simulation of Soft Gluon Effects beyond Leading Color

2021 ◽  
Vol 126 (11) ◽  
Author(s):  
Matthew De Angelis ◽  
Jeffrey R. Forshaw ◽  
Simon Plätzer
Keyword(s):  
Soft Gluon

scholarly journals Soft gluon emission at two loops in full color

2020 ◽  
Vol 2020 (5) ◽  
Author(s):  
Lance J. Dixon ◽  
Enrico Herrmann ◽  
Kai Yan ◽  
Hua Xing Zhu
Keyword(s):  
Soft Gluon ◽  
Gluon Emission ◽  
Full Color

scholarly journals Forward dijets in proton-nucleus collisions at next-to-leading order: the real corrections

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Edmond Iancu ◽  
Yair Mulian
Keyword(s):  
Cross Section ◽  
Soft Gluon ◽  
Effective Theory ◽  
Dglap Evolution ◽  
Leading Order ◽  
Final State ◽  
Dijet Production ◽  
The Real ◽  
First Case ◽  
Subsequent Publication

Abstract Using the CGC effective theory together with the hybrid factorisation, we study forward dijet production in proton-nucleus collisions beyond leading order. In this paper, we compute the “real” next-to-leading order (NLO) corrections, i.e. the radiative corrections associated with a three-parton final state, out of which only two are being measured. To that aim, we start by revisiting our previous results for the three-parton cross-section presented in [1]. After some reshuffling of terms, we deduce new expressions for these results, which not only look considerably simpler, but are also physically more transparent. We also correct several errors in this process. The real NLO corrections to inclusive dijet production are then obtained by integrating out the kinematics of any of the three final partons. We explicitly work out the interesting limits where the unmeasured parton is either a soft gluon, or the product of a collinear splitting. We find the expected results in both limits: the B-JIMWLK evolution of the leading-order dijet cross-section in the first case (soft gluon) and, respectively, the DGLAP evolution of the initial and final states in the second case (collinear splitting). The “virtual” NLO corrections to dijet production will be presented in a subsequent publication.

scholarly journals Simulation of QCD jets including soft gluon interference

1984 ◽  
Vol 238 (1) ◽  
pp. 1-29 ◽  
Author(s):  
G. Marchesini ◽  
B.R. Webber
Keyword(s):  
Soft Gluon

scholarly journals Soft gluon resummation for associated t t ¯ H $$ \mathrm{t}\overline{\mathrm{t}}\mathrm{H} $$ production at the LHC

2016 ◽  
Vol 2016 (3) ◽  
Author(s):  
Anna Kulesza ◽  
Leszek Motyka ◽  
Tomasz Stebel ◽  
Vincent Theeuwes
Keyword(s):  
Soft Gluon

Generalized coherent state for soft gluon emission

1985 ◽  
Vol 249 (2) ◽  
pp. 301-331 ◽  
Author(s):  
S. Catani ◽  
M. Ciafaloni
Keyword(s):  
Coherent State ◽  
Soft Gluon ◽  
Gluon Emission
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