The LPM effect in sequential bremsstrahlung: 4-gluon vertices

Arnold, Peter; Chang, Han-Chih; Iqbal, Shahin

doi:10.1007/JHEP10(2016)124

Title: The LPM effect in sequential bremsstrahlung: 4-gluon vertices

Abstract

The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect. In this paper, we continue study of the case when the coherence lengths of two consecutive splitting processes overlap (which is important for understanding corrections to standard treatments of the LPM effect in QCD), avoiding soft-gluon approximations. In particular, this paper completes the calculation of the rate for real double gluon bremsstrahlung from an initial gluon with various simplifying assumptions (thick media; qˆ approximation; and large N_c) by now including processes involving 4-gluon vertices.

Authors:

Arnold, Peter ^[1]; Chang, Han-Chih ^[1]; Iqbal, Shahin ^[2]

Univ. of Virginia, Charlottesville, VA (United States)
Quaid-i-Asam Univ. Campus, Islamabad (Pakistan)

Publication Date:: 2016-10-01

Research Org.:: Univ. of Virginia, Charlottesville, VA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1425922

Grant/Contract Number:: SC0007984

Resource Type:: Accepted Manuscript

Journal Name:: Journal of High Energy Physics (Online)

Additional Journal Information:: Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 10; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Arnold, Peter, Chang, Han-Chih, and Iqbal, Shahin. The LPM effect in sequential bremsstrahlung: 4-gluon vertices.  United States: N. p., 2016. 
Web.  doi:10.1007/JHEP10(2016)124.

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                    Arnold, Peter, Chang, Han-Chih, & Iqbal, Shahin. The LPM effect in sequential bremsstrahlung: 4-gluon vertices.  United States.  https://doi.org/10.1007/JHEP10(2016)124

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                    Arnold, Peter, Chang, Han-Chih, and Iqbal, Shahin. Sat .  
"The LPM effect in sequential bremsstrahlung: 4-gluon vertices".  United States.  https://doi.org/10.1007/JHEP10(2016)124.  https://www.osti.gov/servlets/purl/1425922.

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@article{osti_1425922,

  title        = {The LPM effect in sequential bremsstrahlung: 4-gluon vertices},

  author       = {Arnold, Peter and Chang, Han-Chih and Iqbal, Shahin},

  abstractNote = {The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect. In this paper, we continue study of the case when the coherence lengths of two consecutive splitting processes overlap (which is important for understanding corrections to standard treatments of the LPM effect in QCD), avoiding soft-gluon approximations. In particular, this paper completes the calculation of the rate for real double gluon bremsstrahlung from an initial gluon with various simplifying assumptions (thick media; qˆ approximation; and large Nc) by now including processes involving 4-gluon vertices.},

  doi          = {10.1007/JHEP10(2016)124},

  journal      = {Journal of High Energy Physics (Online)},

  number       = 10,

  volume       = 2016,

  place        = {United States},

  year         = {2016},

  month        = {10}

}

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https://doi.org/10.1007/JHEP10(2016)124

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Works referenced in this record:

Bremsstrahlung and Pair Production in Condensed Media at High Energies
journal, September 1956

Migdal, A. B.
Physical Review, Vol. 103, Issue 6
DOI: 10.1103/PhysRev.103.1811

The LPM effect in sequential bremsstrahlung: dimensional regularization
journal, October 2016

Arnold, Peter; Chang, Han-Chih; Iqbal, Shahin
Journal of High Energy Physics, Vol. 2016, Issue 10
DOI: 10.1007/JHEP10(2016)100

Radiative -broadening of high-energy quarks and gluons in QCD matter
journal, October 2013

Liou, Tseh; Mueller, A. H.; Wu, Bin
Nuclear Physics A, Vol. 916
DOI: 10.1016/j.nuclphysa.2013.08.005

Radiative energy loss and radiative p ⊥-broadening of high-energy partons in QCD matter
journal, December 2014

Wu, Bin
Journal of High Energy Physics, Vol. 2014, Issue 12
DOI: 10.1007/JHEP12(2014)081

Renormalization of the jet-quenching parameter
journal, September 2014

Blaizot, Jean-Paul; Mehtar-Tani, Yacine
Nuclear Physics A, Vol. 929
DOI: 10.1016/j.nuclphysa.2014.05.018

Probabilistic picture for medium-induced jet evolution
journal, June 2014

Blaizot, Jean-Paul; Dominguez, Fabio; Iancu, Edmond
Journal of High Energy Physics, Vol. 2014, Issue 6
DOI: 10.1007/JHEP06(2014)075

The non-linear evolution of jet quenching
journal, October 2014

Iancu, Edmond
Journal of High Energy Physics, Vol. 2014, Issue 10
DOI: 10.1007/JHEP10(2014)095

The LPM effect in sequential bremsstrahlung 2: factorization
journal, September 2016

Arnold, Peter; Chang, Han-Chih; Iqbal, Shahin
Journal of High Energy Physics, Vol. 2016, Issue 9
DOI: 10.1007/JHEP09(2016)078

The LPM effect in sequential bremsstrahlung
journal, April 2015

Arnold, Peter; Iqbal, Shahin
Journal of High Energy Physics, Vol. 2015, Issue 4
DOI: 10.1007/JHEP04(2015)070

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Title: The LPM effect in sequential bremsstrahlung: 4-gluon vertices

Abstract

Citation Formats

Bremsstrahlung and Pair Production in Condensed Media at High Energies journal, September 1956

The LPM effect in sequential bremsstrahlung: dimensional regularization journal, October 2016

Radiative -broadening of high-energy quarks and gluons in QCD matter journal, October 2013

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The LPM effect in sequential bremsstrahlung 2: factorization journal, September 2016

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Bremsstrahlung and Pair Production in Condensed Media at High Energies
journal, September 1956

The LPM effect in sequential bremsstrahlung: dimensional regularization
journal, October 2016

Radiative -broadening of high-energy quarks and gluons in QCD matter
journal, October 2013

Radiative energy loss and radiative p ⊥-broadening of high-energy partons in QCD matter
journal, December 2014

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journal, September 2014

Probabilistic picture for medium-induced jet evolution
journal, June 2014

The non-linear evolution of jet quenching
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journal, September 2016

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journal, April 2015