Bibliographic Details
| Title: |
Fully charmed tetraquark production at the LHC experiments |
| Authors: |
Ilia Belov, Alessandro Giachino, Elena Santopinto |
| Source: |
Journal of High Energy Physics, Vol 2025, Iss 1, Pp 1-29 (2025) |
| Publisher Information: |
SpringerOpen, 2025. |
| Publication Year: |
2025 |
| Collection: |
LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| Subject Terms: |
Specific QCD Phenomenology, Properties of Hadrons, Scattering Amplitudes, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| More Details: |
Abstract We develop the formalism for production of a fully heavy tetraquark and apply it to the calculation of pp → T 4c + X cross-sections. We demonstrate that the production cross-section of a fully heavy tetraquark, even if it is a diquark-antidiquark cluster, can be obtained in the meson-like basis, for which the spin-color projection technique is well established. Prompted by the recent LHCb, ATLAS and CMS data, we perform a pQCD calculation of O $$ \mathcal{O} $$ ( α s 5 $$ {\alpha}_s^5 $$ ) short-distance factors in the dominant channel of gluon fusion, and match these to the four-body T 4c wave functions in order to obtain the unpolarized T 4c (0++ , 1+− , 2++) cross-sections. The novelty in comparison with the recently published article [1] lies in the fact that we predict the absolute values as well as the dσ/dp T spectra in the kinematic ranges accessible at the ongoing LHC experiments. From the comparison with the signal yield at LHCb we derive the constraints on the Φ · Br(J/ψ J/ψ) (reduced wave function times branching) product for the T 4c candidates for X(6900) and observe that X(6900) is compatible with a 2++(2S) state. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
1029-8479 |
| Relation: |
https://doaj.org/toc/1029-8479 |
| DOI: |
10.1007/JHEP01(2025)093 |
| Access URL: |
https://doaj.org/article/4b1fe9ca769d476ea4130ca73f7dc55d |
| Accession Number: |
edsdoj.4b1fe9ca769d476ea4130ca73f7dc55d |
| Database: |
Directory of Open Access Journals |
