Photoproduction of three jets in the CGC: gluon TMDs and dilute limit
Abstract We study the process γA → q q ¯ g $$ q\overline{q}g $$ + X in the Color Glass Condensate (CGC) effective theory. After obtaining the cross section, we consider two kinematic limits which are encompassed in our result. In the so-called correlation limit, the vector sum of the transverse mome...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-07-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP07(2020)143 |
| _version_ | 1819330648622497792 |
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| author | Tolga Altinoluk Renaud Boussarie Cyrille Marquet Pieter Taels |
| author_facet | Tolga Altinoluk Renaud Boussarie Cyrille Marquet Pieter Taels |
| author_sort | Tolga Altinoluk |
| collection | DOAJ |
| description | Abstract We study the process γA → q q ¯ g $$ q\overline{q}g $$ + X in the Color Glass Condensate (CGC) effective theory. After obtaining the cross section, we consider two kinematic limits which are encompassed in our result. In the so-called correlation limit, the vector sum of the transverse momenta of the three outgoing particles is small with respect to the individual transverse momenta; the cross section then simplifies considerably and can be written in a factorized form, sensitive to both the unpolarized and linearly-polarized Weizsäcker-Williams transverse momentum dependent gluon distribution function (gluon TMD). The second limit of the CGC cross section that we consider is the dilute limit, which we obtain after performing a weak-field expansion; we recover a typical linear-regime expression, involving a single unintegrated gluon distribution function. Using numerical simulations of the small-x QCD evolution of the TMDs, we investigate the rapidity dependence of the cross section in the correlation limit. |
| first_indexed | 2024-12-24T14:01:52Z |
| format | Article |
| id | doaj.art-3b3c316c7cb14dec8d0c3a470fce2070 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-24T14:01:52Z |
| publishDate | 2020-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-3b3c316c7cb14dec8d0c3a470fce20702022-12-21T16:52:27ZengSpringerOpenJournal of High Energy Physics1029-84792020-07-012020715210.1007/JHEP07(2020)143Photoproduction of three jets in the CGC: gluon TMDs and dilute limitTolga Altinoluk0Renaud Boussarie1Cyrille Marquet2Pieter Taels3Theoretical Physics Division, National Centre for Nuclear ResearchPhysics Department, Brookhaven National LaboratoryCentre de Physique Théorique, École polytechnique, CNRS, I.P. ParisCentre de Physique Théorique, École polytechnique, CNRS, I.P. ParisAbstract We study the process γA → q q ¯ g $$ q\overline{q}g $$ + X in the Color Glass Condensate (CGC) effective theory. After obtaining the cross section, we consider two kinematic limits which are encompassed in our result. In the so-called correlation limit, the vector sum of the transverse momenta of the three outgoing particles is small with respect to the individual transverse momenta; the cross section then simplifies considerably and can be written in a factorized form, sensitive to both the unpolarized and linearly-polarized Weizsäcker-Williams transverse momentum dependent gluon distribution function (gluon TMD). The second limit of the CGC cross section that we consider is the dilute limit, which we obtain after performing a weak-field expansion; we recover a typical linear-regime expression, involving a single unintegrated gluon distribution function. Using numerical simulations of the small-x QCD evolution of the TMDs, we investigate the rapidity dependence of the cross section in the correlation limit.http://link.springer.com/article/10.1007/JHEP07(2020)143Heavy Ion Phenomenology |
| spellingShingle | Tolga Altinoluk Renaud Boussarie Cyrille Marquet Pieter Taels Photoproduction of three jets in the CGC: gluon TMDs and dilute limit Journal of High Energy Physics Heavy Ion Phenomenology |
| title | Photoproduction of three jets in the CGC: gluon TMDs and dilute limit |
| title_full | Photoproduction of three jets in the CGC: gluon TMDs and dilute limit |
| title_fullStr | Photoproduction of three jets in the CGC: gluon TMDs and dilute limit |
| title_full_unstemmed | Photoproduction of three jets in the CGC: gluon TMDs and dilute limit |
| title_short | Photoproduction of three jets in the CGC: gluon TMDs and dilute limit |
| title_sort | photoproduction of three jets in the cgc gluon tmds and dilute limit |
| topic | Heavy Ion Phenomenology |
| url | http://link.springer.com/article/10.1007/JHEP07(2020)143 |
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