scholarly journals Medium-induced soft gluon radiation in forward dijet production in relativistic proton-nucleus collisions

2015 ◽  
Vol 2015 (1) ◽  
Author(s):  
Stéphane Peigné ◽  
Rodion Kolevatov
Keyword(s):  
Soft Gluon ◽  
Gluon Radiation ◽  
Dijet Production ◽  
Relativistic Proton

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 Triple (and quadruple) soft-gluon radiation in QCD hard scattering

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Stefano Catani ◽  
Dimitri Colferai ◽  
Alessandro Torrini
Keyword(s):  
Soft Gluon ◽  
Hard Scattering ◽  
Gluon Radiation

scholarly journals Soft gluon radiation in photon plus single jet events at LEP

1994 ◽  
Vol 324 (3-4) ◽  
pp. 487-491 ◽  
Author(s):  
E.W.N. Glover ◽  
A.G. Morgan
Keyword(s):  
Soft Gluon ◽  
Gluon Radiation ◽  
Single Jet

scholarly journals Soft Gluon Radiation off Heavy Quarks beyond Eikonal Approximation

2016 ◽  
Vol 2016 ◽  
pp. 1-10
Author(s):  
Trambak Bhattacharyya ◽  
Surasree Mazumder ◽  
Raktim Abir
Keyword(s):  
Quark Gluon Plasma ◽  
Radiation Spectrum ◽  
Eikonal Approximation ◽  
Gluon Plasma ◽  
Heavy Quarks ◽  
Soft Gluon ◽  
Plasma Medium ◽  
Gluon Radiation ◽  
Radiation Distribution ◽  
Angle Scattering

We calculate the soft gluon radiation spectrum off heavy quarks (HQs) interacting with light quarks (LQs) beyond small angle scattering (eikonality) approximation and thus generalize the dead-cone formula of heavy quarks extensively used in the literatures of Quark-Gluon Plasma (QGP) phenomenology to the large scattering angle regime which may be important in the energy loss of energetic heavy quarks in the deconfined Quark-Gluon Plasma medium. In the proper limits, we reproduce all the relevant existing formulae for the gluon radiation distribution off energetic quarks, heavy or light, used in the QGP phenomenology.

scholarly journals Examination of the Gunion-Bertsch formula for soft gluon radiation

2012 ◽  
Vol 85 (3) ◽  
Author(s):  
Trambak Bhattacharyya ◽  
Surasree Mazumder ◽  
Santosh K. Das ◽  
Jan-e Alam
Keyword(s):  
Soft Gluon ◽  
Gluon Radiation

scholarly journals Next-to-eikonal corrections to soft gluon radiation: a diagrammatic approach

2011 ◽  
Vol 2011 (1) ◽  
Author(s):  
Eric Laenen ◽  
Lorenzo Magnea ◽  
Gerben Stavenga ◽  
Chris D. White
Keyword(s):  
Soft Gluon ◽  
Gluon Radiation

scholarly journals Testing the Reliability of the Soft-Gluon Approximation for High p⊥ Particles

Proceedings ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 13
Author(s):  
Bojana Blagojevic ◽  
Magdalena Djordjevic ◽  
Marko Djordjevic
Keyword(s):  
Energy Loss ◽  
Jet Quenching ◽  
Soft Gluon ◽  
Radiative Energy ◽  
Gluon Radiation ◽  
Radiative Energy Loss ◽  
First Order ◽  
Analytical Expressions ◽  
Made In

The soft-gluon approximation assumes that a high p ⊥ parton propagating through dense QCD matter loses only a small amount of its energy via gluon radiation. This assumption is made in many different jet quenching approaches, which nevertheless predicted a sizable radiative energy loss of such particles. This questions the reliability of this approximation, which must then be reconsidered. To address this issue, we relaxed the soft-gluon approximation within the DGLV formalism to the first order in opacity. The obtained analytical expressions are notably different from the soft-gluon case. Surprisingly the numerical effects that stem from waiving this assumption on fractional radiative energy loss and number of radiated gluons are small. Additionally, the effect on suppression is negligible, which can be intuitively understood by the cancellation of the opposite effects on the above mentioned variables. Consequently, our results surprisingly indicate that, contrary to the doubts mentioned above, the soft-gluon approximation remains well-founded within the DGLV formalism. We also investigate the effects of this assumption in the case of a dynamical medium, which suggests generality of the conclusions presented here.

scholarly journals Soft gluon radiation in top quark events: Effect of hadronicWdecays

1996 ◽  
Vol 54 (7) ◽  
pp. 4453-4462 ◽  
Author(s):  
Bond Masuda ◽  
Lynne H. Orr ◽  
W. J. Stirling
Keyword(s):  
Top Quark ◽  
Soft Gluon ◽  
Gluon Radiation

Soft gluon radiation in

1992 ◽  
Vol 378 (3) ◽  
pp. 413-442 ◽  
Author(s):  
V.A. Khoze ◽  
W.J. Stirling ◽  
Lynne H. Orr
Keyword(s):  
Soft Gluon ◽  
Gluon Radiation
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