Producing fully-charmed tetraquarks via charm quark fragmentation in colliders
Abstract Within the framework of nonrelativistic QCD (NRQCD), we calculate the fragmentation function for a charm quark into an S-wave fully-charmed tetraquark, denoted as T 4c . The charm-to-T 4c fragmentation function is expressed as a sum of products of the perturbatively calculable short-distanc...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-09-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP09(2024)002 |
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| author | Xiao-Wei Bai Feng Feng Chang-Man Gan Yingsheng Huang Wen-Long Sang Hong-Fei Zhang |
| author_facet | Xiao-Wei Bai Feng Feng Chang-Man Gan Yingsheng Huang Wen-Long Sang Hong-Fei Zhang |
| author_sort | Xiao-Wei Bai |
| collection | DOAJ |
| description | Abstract Within the framework of nonrelativistic QCD (NRQCD), we calculate the fragmentation function for a charm quark into an S-wave fully-charmed tetraquark, denoted as T 4c . The charm-to-T 4c fragmentation function is expressed as a sum of products of the perturbatively calculable short-distance coefficients and the nonperturbative long-distance matrix elements (LDMEs). The short-distance coefficients are ascertained through the perturbative matching procedure at lowest order in α s expansion. The LDMEs are approximated using the T 4c four-body wave functions at the origin, which have been evaluated by various phenomenological potential models in literature. Incorporating the celebrated QCD factorization and the charm-to-T 4c fragmentation function, we predict the T 4c production rate at high transverse momentum p T regime in colliders. Both the differential distribution over p T and the integrated cross sections are predicted at the LHC. The cross sections for T 4c states production can reach several femtobarns to several hundreds femtobarns, suggesting a substantial potential for T 4c event production at the LHC. Additionally, we estimate for the photoproduction of T 4c in electron-proton (ep) collisions. It is observed that the cross sections for these processes are moderate at the HERA and EIC, and relatively small at the EicC. Given the luminosities of these colliders, the prospect of detecting these fully-charmed tetraquarks at ep colliders is somewhat challenging. |
| format | Article |
| id | doaj-art-d96f620d21cd4f0a96289f0f9cb5ce44 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-d96f620d21cd4f0a96289f0f9cb5ce442024-12-08T12:16:14ZengSpringerOpenJournal of High Energy Physics1029-84792024-09-012024912110.1007/JHEP09(2024)002Producing fully-charmed tetraquarks via charm quark fragmentation in collidersXiao-Wei Bai0Feng Feng1Chang-Man Gan2Yingsheng Huang3Wen-Long Sang4Hong-Fei Zhang5School of Physical Science and Technology, Southwest UniversityInstitute of High Energy Physics and Theoretical Physics Center for Science Facilities, Chinese Academy of SciencesSchool of Physical Science and Technology, Southwest UniversityHigh Energy Physics Division, Argonne National LaboratorySchool of Physical Science and Technology, Southwest UniversityCollege of Big Data Statistics, Guizhou University of Finance and EconomicsAbstract Within the framework of nonrelativistic QCD (NRQCD), we calculate the fragmentation function for a charm quark into an S-wave fully-charmed tetraquark, denoted as T 4c . The charm-to-T 4c fragmentation function is expressed as a sum of products of the perturbatively calculable short-distance coefficients and the nonperturbative long-distance matrix elements (LDMEs). The short-distance coefficients are ascertained through the perturbative matching procedure at lowest order in α s expansion. The LDMEs are approximated using the T 4c four-body wave functions at the origin, which have been evaluated by various phenomenological potential models in literature. Incorporating the celebrated QCD factorization and the charm-to-T 4c fragmentation function, we predict the T 4c production rate at high transverse momentum p T regime in colliders. Both the differential distribution over p T and the integrated cross sections are predicted at the LHC. The cross sections for T 4c states production can reach several femtobarns to several hundreds femtobarns, suggesting a substantial potential for T 4c event production at the LHC. Additionally, we estimate for the photoproduction of T 4c in electron-proton (ep) collisions. It is observed that the cross sections for these processes are moderate at the HERA and EIC, and relatively small at the EicC. Given the luminosities of these colliders, the prospect of detecting these fully-charmed tetraquarks at ep colliders is somewhat challenging.https://doi.org/10.1007/JHEP09(2024)002Effective Field Theories of QCDParton Distributions |
| spellingShingle | Xiao-Wei Bai Feng Feng Chang-Man Gan Yingsheng Huang Wen-Long Sang Hong-Fei Zhang Producing fully-charmed tetraquarks via charm quark fragmentation in colliders Journal of High Energy Physics Effective Field Theories of QCD Parton Distributions |
| title | Producing fully-charmed tetraquarks via charm quark fragmentation in colliders |
| title_full | Producing fully-charmed tetraquarks via charm quark fragmentation in colliders |
| title_fullStr | Producing fully-charmed tetraquarks via charm quark fragmentation in colliders |
| title_full_unstemmed | Producing fully-charmed tetraquarks via charm quark fragmentation in colliders |
| title_short | Producing fully-charmed tetraquarks via charm quark fragmentation in colliders |
| title_sort | producing fully charmed tetraquarks via charm quark fragmentation in colliders |
| topic | Effective Field Theories of QCD Parton Distributions |
| url | https://doi.org/10.1007/JHEP09(2024)002 |
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