Baryon-number — flavor separation in the topological expansion of QCD
Abstract Gauge invariance of QCD dictates the presence of string junctions in the wave functions of baryons. In high-energy inclusive processes, these baryon junctions have been predicted to induce the separation of the flows of baryon number and flavor. In this paper we describe this phenomenon usi...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2024-07-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP07(2024)262 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850204474558119936 |
|---|---|
| author | David Frenklakh Dmitri Kharzeev Giancarlo Rossi Gabriele Veneziano |
| author_facet | David Frenklakh Dmitri Kharzeev Giancarlo Rossi Gabriele Veneziano |
| author_sort | David Frenklakh |
| collection | DOAJ |
| description | Abstract Gauge invariance of QCD dictates the presence of string junctions in the wave functions of baryons. In high-energy inclusive processes, these baryon junctions have been predicted to induce the separation of the flows of baryon number and flavor. In this paper we describe this phenomenon using the analog-gas model of multiparticle production proposed long time ago by Feynman and Wilson and adapted here to accommodate the topological expansion in QCD. In this framework, duality arguments suggest the existence of two degenerate junction-antijunction glueball Regge trajectories of opposite C $$ \mathcal{C} $$ -parity with intercept close to 1/2. The corresponding results for the energy and rapidity dependence of baryon stopping are in reasonably good agreement with recent experimental findings from STAR and ALICE experiments. We show that accounting for correlations between the fragmenting strings further improves agreement with the data, and outline additional experimental tests of our picture at the existing (RHIC, LHC, JLab) and future (EIC) facilities. |
| format | Article |
| id | doaj-art-e2bbdcb342ae48b0acbbdfb822a2c67b |
| institution | OA Journals |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-e2bbdcb342ae48b0acbbdfb822a2c67b2025-08-20T02:11:17ZengSpringerOpenJournal of High Energy Physics1029-84792024-07-012024712610.1007/JHEP07(2024)262Baryon-number — flavor separation in the topological expansion of QCDDavid Frenklakh0Dmitri Kharzeev1Giancarlo Rossi2Gabriele Veneziano3Center for Nuclear Theory, Department of Physics and Astronomy, Stony Brook UniversityCenter for Nuclear Theory, Department of Physics and Astronomy, Stony Brook UniversityDipartimento di Fisica, Università di Roma “Tor Vergata” INFN, Sezione di Roma “Tor Vergata”Theory Department, CERNAbstract Gauge invariance of QCD dictates the presence of string junctions in the wave functions of baryons. In high-energy inclusive processes, these baryon junctions have been predicted to induce the separation of the flows of baryon number and flavor. In this paper we describe this phenomenon using the analog-gas model of multiparticle production proposed long time ago by Feynman and Wilson and adapted here to accommodate the topological expansion in QCD. In this framework, duality arguments suggest the existence of two degenerate junction-antijunction glueball Regge trajectories of opposite C $$ \mathcal{C} $$ -parity with intercept close to 1/2. The corresponding results for the energy and rapidity dependence of baryon stopping are in reasonably good agreement with recent experimental findings from STAR and ALICE experiments. We show that accounting for correlations between the fragmenting strings further improves agreement with the data, and outline additional experimental tests of our picture at the existing (RHIC, LHC, JLab) and future (EIC) facilities.https://doi.org/10.1007/JHEP07(2024)2621/N ExpansionProperties of HadronsSpecific QCD Phenomenology |
| spellingShingle | David Frenklakh Dmitri Kharzeev Giancarlo Rossi Gabriele Veneziano Baryon-number — flavor separation in the topological expansion of QCD Journal of High Energy Physics 1/N Expansion Properties of Hadrons Specific QCD Phenomenology |
| title | Baryon-number — flavor separation in the topological expansion of QCD |
| title_full | Baryon-number — flavor separation in the topological expansion of QCD |
| title_fullStr | Baryon-number — flavor separation in the topological expansion of QCD |
| title_full_unstemmed | Baryon-number — flavor separation in the topological expansion of QCD |
| title_short | Baryon-number — flavor separation in the topological expansion of QCD |
| title_sort | baryon number flavor separation in the topological expansion of qcd |
| topic | 1/N Expansion Properties of Hadrons Specific QCD Phenomenology |
| url | https://doi.org/10.1007/JHEP07(2024)262 |
| work_keys_str_mv | AT davidfrenklakh baryonnumberflavorseparationinthetopologicalexpansionofqcd AT dmitrikharzeev baryonnumberflavorseparationinthetopologicalexpansionofqcd AT giancarlorossi baryonnumberflavorseparationinthetopologicalexpansionofqcd AT gabrieleveneziano baryonnumberflavorseparationinthetopologicalexpansionofqcd |