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Related papers: All-charm tetraquarks at hadron colliders: A high-…

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We investigate the high-energy production of tetraquark-jet systems at the LHC and its forthcoming High-Luminosity upgrade. In this review, we examine the leading-power fragmentation of fully heavy tetraquarks ($T_{4Q}$) in hadronic…

High Energy Physics - Phenomenology · Physics 2026-04-03 Francesco Giovanni Celiberto

We extend the study of exotic matter formation via the TQ4Q1.1 set of collinear, variable-flavor-number-scheme fragmentation functions for fully charmed or bottomed tetraquarks in three quantum configurations: scalar ($J^{PC} = 0^{++}$),…

High Energy Physics - Phenomenology · Physics 2025-10-30 Francesco Giovanni Celiberto

We investigate the inclusive production of fully charmed tetraquarks, $T_{4c}(0^{++})$ or $T_{4c}(2^{++})$ radial excitations, in high-energy proton collisions. We build our study upon the collinear fragmentation of a single parton in a…

High Energy Physics - Phenomenology · Physics 2024-12-17 Francesco Giovanni Celiberto , Gabriele Gatto , Alessandro papa

We present and discuss the release of novel sets of collinear, variable-flavor-number-scheme fragmentation functions for axial-vector, fully heavy $T_{4c}(1^{+-})$ and $T_{4b}(1^{+-})$ tetraquarks. Working within the single-parton…

High Energy Physics - Phenomenology · Physics 2025-06-04 Francesco Giovanni Celiberto

We present an uncertainty-aware description of leading-power fragmentation for all-charm pentaquark states ($S$-wave $|cccc\bar{c}\rangle$) at hadron colliders. We construct a multimodal set of collinear fragmentation functions, PQ5Q1.1,…

High Energy Physics - Phenomenology · Physics 2026-05-05 Francesco Giovanni Celiberto

We examine the leading-power fragmentation of fully heavy pentaquarks in high-energy hadronic collisions. To this end, we complete the release of the hadron-structure-oriented PQ5Q1.0 fragmentation functions, by discussing the $P_{5c}$ set…

High Energy Physics - Phenomenology · Physics 2026-04-16 Francesco Giovanni Celiberto

The $X(6900)$ resonance, very recently discovered in the double-$J/\psi$ channel at LHCb experiment, has spurred intensive interest in unravelling the nature of the fully charmed tetraquark state. The aim of this paper is to present a…

High Energy Physics - Phenomenology · Physics 2020-09-18 Feng Feng , Yingsheng Huang , Yu Jia , Wen-Long Sang , Xiaonu Xiong , Jia-Yue Zhang

The $X(6900)$ resonance, originally discovered by the \texttt{LHCb} collaboration and later confirmed by both \texttt{ATLAS} and \texttt{CMS} experiments, has sparked broad interests in the fully-charmed tetraquark states. Relative to the…

High Energy Physics - Phenomenology · Physics 2023-04-25 Feng Feng , Yingsheng Huang , Yu Jia , Wen-Long Sang , De-Shan Yang , Jia-Yue Zhang

We investigate the core dynamics behind exotic matter formation via the TQ4Q1.1 set of collinear fragmentation functions for fully charmed or bottomed tetraquarks in three quantum configurations: scalar ($0^{++}$), axial vector ($1^{+-}$),…

High Energy Physics - Phenomenology · Physics 2026-04-03 Francesco Giovanni Celiberto

We review the semi-inclusive hadroproduction of a neutral hidden-flavor tetraquark with light and heavy quark flavor at the HL-LHC, accompanied by another heavy hadron or a light-flavored jet. We make use of the novel TQHL1.0 determinations…

High Energy Physics - Phenomenology · Physics 2026-04-02 Francesco Giovanni Celiberto

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…

High Energy Physics - Phenomenology · Physics 2024-09-04 Xiao-Wei Bai , Feng Feng , Chang-Man Gan , Yingsheng Huang , Wen-Long Sang , Hong-Fei Zhang

We study the semi-inclusive hadroproduction of doubly bottomed tetraquarks ($X_{b\bar{b}q\bar{q}}$) as well as fully bottomed ones ($T_{4b}$), to which we collectively refer as "bottomoniumlike" states. We rely upon the variable-flavor…

High Energy Physics - Phenomenology · Physics 2025-02-25 Francesco Giovanni Celiberto , Gabriele Gatto

We investigate the leading-power fragmentation of fully charmed pentaquark states ($S$-wave $|c\bar{c}ccc\rangle$ pentacharms) at hadron colliders. We introduce a new set of multimodal collinear fragmentation functions, named PQ5Q1.0. They…

High Energy Physics - Phenomenology · Physics 2025-12-10 Francesco Giovanni Celiberto

In this study, we compute the electromagnetic and hadronic decay widths of the S-wave fully heavy tetraquark $T_{4Q}$ ($Q=c$ or $b$) at lowest order in $\alpha_s$ and $v$, in the framework of nonrelativistic QCD. The short-distance…

High Energy Physics - Phenomenology · Physics 2024-10-10 Wen-Long Sang , Tao Wang , Yu-Dong Zhang , Feng Feng

By taking advantage of the natural stability of the high-energy resummation, recently discovered in the context of heavy-flavor studies, we investigate the inclusive hadroproduction of a neutral heavy-light, hidden-flavored tetraquark…

High Energy Physics - Phenomenology · Physics 2023-12-22 Francesco Giovanni Celiberto , Alessandro Papa

We investigate the production of the fully - heavy tetraquark states $T_{4Q}$ in the $\gamma \gamma$ interactions present in proton-proton, proton-nucleus and nucleus-nucleus collisions at the CERN Large Hadron Collider (LHC). We focus on…

High Energy Physics - Phenomenology · Physics 2021-04-14 Victor P. Goncalves , Bruno D. Moreira

We develop the formalism for production of a fully heavy tetraquark and apply it to the calculation of $pp\to T_{4c}+X$ cross-sections. We demonstrate that the production cross-section of a fully heavy tetraquark, even if it is a…

High Energy Physics - Phenomenology · Physics 2025-02-05 Ilia Belov , Alessandro Giachino , Elena Santopinto

We report the first complete next-to-leading order QCD calculation for processes involving fully charm tetraquark states, revealing that the renormalization constant of the color-singlet four charm quark operator is exactly unity at this…

High Energy Physics - Phenomenology · Physics 2026-04-23 Yefan Wang , Ruilin Zhu

We investigate the inclusive hadroproduction of pseudoscalar heavy quarkonia, $\eta_c$ and $\eta_b$ mesons, in high-energy proton collisions. Our framework bases on the single-parton collinear fragmentation within a variable-flavor number…

High Energy Physics - Phenomenology · Physics 2025-12-29 Francesco Giovanni Celiberto , Francesca Lonigro

We report on recent developments of the Heavy-Flavor Non-Relativistic evolution (HF-NRevo) scheme, a framework designed to describe heavy-hadron formation through leading-power fragmentation at moderate and large transverse momentum. The…

High Energy Physics - Phenomenology · Physics 2026-03-31 Francesco Giovanni Celiberto , Francesca Lonigro
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