Alfredo Valcarce
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Research Interests
Alfredo Valcarce has a total of 87 co-authors. Here are the top co-authors by number of shared publications:
- Javier Vijande
Departamento de Física Atómica, Molecular y Nuclear, Universitat de Valencia (UV), Burjassot, Spain
120 shared publications F. Fernández
Departamento de Física Fundamental and IUFFyM, Universidad de Salamanca, E-37008 Salamanca, Spain
54 shared publicationsH. Garcilazo
Instituto Politécnico Nacional
40 shared publications- Humberto Garcilazo
Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, Mexico, Mexico
34 shared publications P. González
Universidad de Valencia – CSIC
25 shared publications- Jean-Marc Richard
Institut de Physique des 2 Infinis de Lyon, CNRS-IN2P3, Université Claude Bernard (Lyon 1)
24 shared publications
Latest Publications
- Open Access
Multiquark bound states and resonances
We review the chromoelectric and chromomagnetic mechanisms that tentatively lead to stable or metastable multiquark configurations. An alternative interpretation of the dynamics is the quark interchange between hadrons, as illustrated in the case of the fully-charm systems.
Open AccessMultiquark bound states and resonances
We review the chromoelectric and chromomagnetic mechanisms that tentatively lead to stable or metastable multiquark configurations. An alternative interpretation of the dynamics is the quark interchange between hadrons, as illustrated in the case of the fully-charm systems.
- Open Access
- 23 December 2025
- Published by Sissa Medialab Srl
Multiquark bound states and resonances
We review the chromoelectric and chromomagnetic mechanisms that tentatively lead to stable or metastable multiquark configurations. An alternative interpretation of the dynamics is the quark interchange between hadrons, as illustrated in the case of the fully-charm systems.
- 23 December 2025
- Published by Sissa Medialab Srl
Open AccessMultiquark bound states and resonances
We review the chromoelectric and chromomagnetic mechanisms that tentatively lead to stable or metastable multiquark configurations. An alternative interpretation of the dynamics is the quark interchange between hadrons, as illustrated in the case of the fully-charm systems.
- Open Access
Exotic Heavy Hadrons
We review our recent findings on the structure and properties of exotic heavy hadrons, focusing on two main topics. First, we examine the role of correlations driven by the short-range Coulomb-like color interaction in hidden heavy-flavor pentaquarks. We show how this framework consistently accounts for the observed pattern of and states in the hidden-charm sector and enables predictions for the hidden-bottom sector, where experimental data are still lacking. The second topic explores the possibility of forming stable multihadron molecules from deeply bound two-hadron exotic states. In this context, a bound state of three B mesons, denoted as , with quantum numbers , is presented. We find that the binding energy generally decreases as the number of hadrons increases, primarily due to effects of the Pauli principle and the appearance of new decay thresholds. Nonetheless, resonances may still arise in specific cases, depending on the internal thresholds of the system. Finally, we discuss how the decay width of an exotic multihadron resonance can offer valuable insights into its internal structure and underlying dynamics.Open AccessExotic Heavy Hadrons
We review our recent findings on the structure and properties of exotic heavy hadrons, focusing on two main topics. First, we examine the role of correlations driven by the short-range Coulomb-like color interaction in hidden heavy-flavor pentaquarks. We show how this framework consistently accounts for the observed pattern of and states in the hidden-charm sector and enables predictions for the hidden-bottom sector, where experimental data are still lacking. The second topic explores the possibility of forming stable multihadron molecules from deeply bound two-hadron exotic states. In this context, a bound state of three B mesons, denoted as , with quantum numbers , is presented. We find that the binding energy generally decreases as the number of hadrons increases, primarily due to effects of the Pauli principle and the appearance of new decay thresholds. Nonetheless, resonances may still arise in specific cases, depending on the internal thresholds of the system. Finally, we discuss how the decay width of an exotic multihadron resonance can offer valuable insights into its internal structure and underlying dynamics. - Open Access
- 2 July 2025
- Published by American Physical Society (APS) in Physical Review D
- Vol. 112 (1)
Open-flavor heavy hadron production in heavy-ion collisions
We study the production of open-flavor heavy hadrons in relativistic heavy-ion collisions. The hadronization in the quark-gluon plasma is described in the quark coalescence model. We evaluated yields and transverse momentum distributions. A simultaneous study of conventional and exotic hadrons is carried out. The Wigner functions are evaluated using hadron wave functions obtained from a single realistic quark model. Thus, results are presented in a single framework for the production of open-flavor heavy mesons, baryons, and exotic tetraquarks, in particular: D 0 , B 0 , Λ Q , Σ Q , Ξ Q , Ξ Q Q ′ , and T Q Q ′ ( Q , Q ′ = c or b ). The consequences of a partial restoration of chiral symmetry at the hadronization temperature are studied in detail.
- 2 July 2025
- Published by American Physical Society (APS) in Physical Review D
- Vol. 112 (1)
Open AccessOpen-flavor heavy hadron production in heavy-ion collisions
We study the production of open-flavor heavy hadrons in relativistic heavy-ion collisions. The hadronization in the quark-gluon plasma is described in the quark coalescence model. We evaluated yields and transverse momentum distributions. A simultaneous study of conventional and exotic hadrons is carried out. The Wigner functions are evaluated using hadron wave functions obtained from a single realistic quark model. Thus, results are presented in a single framework for the production of open-flavor heavy mesons, baryons, and exotic tetraquarks, in particular: D 0 , B 0 , Λ Q , Σ Q , Ξ Q , Ξ Q Q ′ , and T Q Q ′ ( Q , Q ′ = c or b ). The consequences of a partial restoration of chiral symmetry at the hadronization temperature are studied in detail.
- Open Access
Open-Flavor Heavy Hadron Production in Heavy-Ion Collisions
We study the production of open-flavor heavy hadrons in relativistic heavy-ion collisions. The hadronization in the quark-gluon plasma is described in the quark coalescence model. We evaluated yields and transverse momentum distributions. A simultaneous study of conventional and exotic hadrons is carried out. The Wigner functions are evaluated using hadron wave functions obtained from a single realistic quark model. Thus, results are presented in a single framework for the production of open-flavor heavy mesons, baryons, and exotic tetraquarks, in particular: $D^{0}$, $B^{0}$, $Λ_{Q}$, $Σ_{Q}$, $Ξ_{Q}$, $Ξ_{QQ^\prime}$, and $T_{QQ^\prime}$ ($Q,Q^\prime=c$ or $b$). The consequences of a partial restoration of chiral symmetry at the hadronization temperature are studied in detail.Open AccessOpen-Flavor Heavy Hadron Production in Heavy-Ion Collisions
We study the production of open-flavor heavy hadrons in relativistic heavy-ion collisions. The hadronization in the quark-gluon plasma is described in the quark coalescence model. We evaluated yields and transverse momentum distributions. A simultaneous study of conventional and exotic hadrons is carried out. The Wigner functions are evaluated using hadron wave functions obtained from a single realistic quark model. Thus, results are presented in a single framework for the production of open-flavor heavy mesons, baryons, and exotic tetraquarks, in particular: $D^{0}$, $B^{0}$, $Λ_{Q}$, $Σ_{Q}$, $Ξ_{Q}$, $Ξ_{QQ^\prime}$, and $T_{QQ^\prime}$ ($Q,Q^\prime=c$ or $b$). The consequences of a partial restoration of chiral symmetry at the hadronization temperature are studied in detail. - Open Access
- 31 January 2025
- Published by American Physical Society (APS) in Physical Review D
- Vol. 111 (1)
Pauli principle forbids bound statesLattice QCD studies have shown the attractive character of the S 0 1 Ω Q Q Q Ω Q Q Q , Q = s , c , b , interaction, predicting deeply bound states as the mass of the heavy quark increases. This has led to the question of the possible existence of bound states of more than two Ω Q Q Q baryons, in particular Ω Q Q Q Ω Q Q Q Ω Q Q Q bound states. We discuss how these states might not exist in nature in any flavor sector. The reason would be due to the simultaneous action of two consequences of the Pauli principle in the different partial waves: one at the baryon level, affecting the S 0 1 partial wave, and the other due to the quark substructure, affecting the S 2 5 partial wave.
- 31 January 2025
- Published by American Physical Society (APS) in Physical Review D
- Vol. 111 (1)
Open AccessPauli principle forbids bound statesLattice QCD studies have shown the attractive character of the S 0 1 Ω Q Q Q Ω Q Q Q , Q = s , c , b , interaction, predicting deeply bound states as the mass of the heavy quark increases. This has led to the question of the possible existence of bound states of more than two Ω Q Q Q baryons, in particular Ω Q Q Q Ω Q Q Q Ω Q Q Q bound states. We discuss how these states might not exist in nature in any flavor sector. The reason would be due to the simultaneous action of two consequences of the Pauli principle in the different partial waves: one at the baryon level, affecting the S 0 1 partial wave, and the other due to the quark substructure, affecting the S 2 5 partial wave.
- Open AccessPauli principle forbids $Ω_{QQQ}Ω_{QQQ}Ω_{QQQ}$ bound statesLattice QCD studies have shown the attractive character of the $^1S_0$ $Ω_{QQQ}Ω_{QQQ}$, $Q=s,c,b$, interaction, predicting deeply bound states as the mass of the heavy quark increases. This has led to the question of the possible existence of bound states of more than two $Ω_{QQQ}$ baryons, in particular $Ω_{QQQ}Ω_{QQQ}Ω_{QQQ}$ bound states. We discuss how these states might not exist in nature in any flavor sector. The reason would be due to the simultaneous action of two consequences of the Pauli principle in the different partial waves: one at the baryon level, affecting the $^1S_0$ partial wave, and the other due to the quark substructure, affecting the $^5S_2$ partial wave.Open AccessPauli principle forbids $Ω_{QQQ}Ω_{QQQ}Ω_{QQQ}$ bound statesLattice QCD studies have shown the attractive character of the $^1S_0$ $Ω_{QQQ}Ω_{QQQ}$, $Q=s,c,b$, interaction, predicting deeply bound states as the mass of the heavy quark increases. This has led to the question of the possible existence of bound states of more than two $Ω_{QQQ}$ baryons, in particular $Ω_{QQQ}Ω_{QQQ}Ω_{QQQ}$ bound states. We discuss how these states might not exist in nature in any flavor sector. The reason would be due to the simultaneous action of two consequences of the Pauli principle in the different partial waves: one at the baryon level, affecting the $^1S_0$ partial wave, and the other due to the quark substructure, affecting the $^5S_2$ partial wave.
- Open Access
- 1 July 2024
- Published by Sociedad Mexicana de Fisica A C in Revista Mexicana de Física
- Vol. 70 (4 Jul-Aug)
ΩbbbΩbbbΩbbb tribaryons
We study the possible existence of bound states of three Ωbbb baryons. We consider only S wave interactions and we start from recent lattice QCD results which give a strongly attractive potential between two Ωbbb baryons in the 1S0 channel. We analyze different scenarios. At baryonic level, the ΩbbbΩbbb interaction could be understood to be basically spin-independent, so that the two contributing channels, 1S0 and 5S2, would have a very similar interaction. This baryonic analysis leads to the existence of bound states in the three-body system. At the quark level, repulsive effects would appear in the 5S2 channel, making it more repulsive than the 1S0 channel. We study the effect of such repulsion.
- 1 July 2024
- Published by Sociedad Mexicana de Fisica A C in Revista Mexicana de Física
- Vol. 70 (4 Jul-Aug)
Open AccessΩbbbΩbbbΩbbb tribaryons
We study the possible existence of bound states of three Ωbbb baryons. We consider only S wave interactions and we start from recent lattice QCD results which give a strongly attractive potential between two Ωbbb baryons in the 1S0 channel. We analyze different scenarios. At baryonic level, the ΩbbbΩbbb interaction could be understood to be basically spin-independent, so that the two contributing channels, 1S0 and 5S2, would have a very similar interaction. This baryonic analysis leads to the existence of bound states in the three-body system. At the quark level, repulsive effects would appear in the 5S2 channel, making it more repulsive than the 1S0 channel. We study the effect of such repulsion.
- Open Access
- 14 December 2022
- Published by American Physical Society (APS) in Physical Review D
- Vol. 106 (11) , 114012
Hidden-flavor pentaquarks
We have recently studied hidden-charm pentaquarks, , using the dynamical correlations between the heavy quarks arising from the Coulomb-like nature of the short-range interaction. A pattern was obtained that compares well with the experimental data. We extend our description to other flavor sectors which can be framed within the same type of structures discussed in the original paper. A detailed comparison is made with other results in the literature and with experimental data. The predictions will be a useful tool to discriminate between different models of multiquark system dynamics.- 14 December 2022
- Published by American Physical Society (APS) in Physical Review D
- Vol. 106 (11) , 114012
Open AccessHidden-flavor pentaquarks
We have recently studied hidden-charm pentaquarks, , using the dynamical correlations between the heavy quarks arising from the Coulomb-like nature of the short-range interaction. A pattern was obtained that compares well with the experimental data. We extend our description to other flavor sectors which can be framed within the same type of structures discussed in the original paper. A detailed comparison is made with other results in the literature and with experimental data. The predictions will be a useful tool to discriminate between different models of multiquark system dynamics. - Open Access$(I,J^P)=(1,1/2^+)$ $ΣNN$ quasibound stateJLab has recently found indications of the possible existence of a $\Sigma NN$ resonance at $(3.14 \pm 0.84) - i (2.28 \pm 1.2)$ MeV. In the past, using models that exploit symmetries between the two-baryon sector with and without strangeness, hyperon-nucleon interactions have been derived that reproduce the experimental data of the strangeness $-1$ sector. We make use of these interactions to review existing Faddeev studies of the $\Lambda NN$-$\Sigma NN$ system that show theoretical evidences about a $(I,J^P)=(1,1/2^+)$ $\Sigma NN$ quasibound state near threshold. The calculated position of the pole is at 2.92$\,-i\,$2.17 MeV, in reasonable agreement with the experimental findings.Open Access$(I,J^P)=(1,1/2^+)$ $ΣNN$ quasibound stateJLab has recently found indications of the possible existence of a $\Sigma NN$ resonance at $(3.14 \pm 0.84) - i (2.28 \pm 1.2)$ MeV. In the past, using models that exploit symmetries between the two-baryon sector with and without strangeness, hyperon-nucleon interactions have been derived that reproduce the experimental data of the strangeness $-1$ sector. We make use of these interactions to review existing Faddeev studies of the $\Lambda NN$-$\Sigma NN$ system that show theoretical evidences about a $(I,J^P)=(1,1/2^+)$ $\Sigma NN$ quasibound state near threshold. The calculated position of the pole is at 2.92$\,-i\,$2.17 MeV, in reasonable agreement with the experimental findings.