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Author Garcilazo, H.; Valcarce, A.; Vijande, J.
Title Stable bound states of N's, Lambda's and Xi's Type Journal Article
Year 2017 Publication Revista Mexicana de Fisica Abbreviated Journal Rev. Mex. Fis.
Volume 63 Issue 5 Pages 411-422
Keywords Baryon-Baryon interactions; Faddeev equations; variational approaches
Abstract We review our recent work about the stability of strange few-body systems containing N's, Lambda's, and Xi's. We make use of local central Yukawa-type Malfliet-Tjon interactions reproducing the low-energy parameters and phase shifts of the nucleon-nucleon system and the latest updates of the hyperon-nucleon and hyperon-hyperon ESCO8c Nijmegen potentials. We solve the three-and four-body bound-state problems by means of Faddeev equations and a generalized Gaussian variational method, respectively. The hypertriton, Lambda np(I)J(P) = (1/2)1/2(+), is bound by 144 keV; the recently discussed Lambda nn (I)J(P) = (1/2)1/2(+) system is unbound, as well as the Lambda Lambda nn (I)J(P) = (1)0(+) system, being just above threshold. Our results indicate that the Xi NN, Xi Xi N and Xi Xi NN systems with maximal isospin might be bound.
Address [Garcilazo, H.] Inst Politecn Nacl, Escuela Super Fis & Matemat, Edificio 9, Mexico City 07738, DF, Mexico, Email: humberto@esfm.ipn.mx;
Corporate Author Thesis
Publisher Soc Mexicana Fisica Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 0035-001x ISBN Medium
Area Expedition Conference
Notes WOS:000410015700003 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3291
Permanent link to this record
 
 
Author Valcarce, A.; Vijande, J.; Richard, J.M.; Garcilazo, H.
Title Stability of Heavy Tetraquarks Type Journal Article
Year 2018 Publication Few-Body Systems Abbreviated Journal Few-Body Syst.
Volume 59 Issue 2 Pages 9 - 7pp
Keywords
Abstract We discuss the stability of tetraquark systems with two different masses. After some reminders about the stability of very asymmetric QQ (q) over bar(q) over bar tetraquarks, we demonstrate that in the all-heavy limit q -> Q, the system becomes unstable for standard color-additive models. We also analyze the consequences of symmetry breaking for Qq (Q) over bar(q) over bar configurations: we find a kind of metastability between the lowest threshold Q (Q) over bar + q (q) over bar and the highest one, Q (q) over bar + (Q) over barq, and we calculate the width of the resonance. Our results are consistent with the experimental observation of narrow hadrons lying well above their lowest decay threshold.
Address [Valcarce, A.] Univ Salamanca, Dept Fis Fundamental, E-37008 Salamanca, Spain, Email: valcarce@usal.es;
Corporate Author Thesis
Publisher Springer Wien Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 0177-7963 ISBN Medium
Area Expedition Conference
Notes WOS:000427011200005 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3574
Permanent link to this record
 
 
Author Vijande, J.; Valcarce, A.; Carames, T.F.; Garcilazo, H.
Title Heavy Hadron Spectroscopy: A Quark Model Perspective Type Journal Article
Year 2013 Publication International Journal of Modern Physics E Abbreviated Journal Int. J. Mod. Phys. E
Volume 22 Issue 5 Pages 1330011 - 25pp
Keywords Heavy hadrons; constituent quark model; many-quark systems
Abstract We present recent results of hadron spectroscopy and hadron hadron interaction from the perspective of constituent quark models. We pay special attention to the role played by higher-order hock space components in the hadron spectra and the connection of this extension with the hadron-hadron interaction. The main goal of our description is to obtain a coherent understanding of the low-energy hadron phenomenology without enforcing any particular model, to constrain its characteristics and learn about the low-energy realization of the theory.
Address Univ Valencia, Dept Fis Atom Mol & Nucl, Valencia, Spain, Email: javier.vijande@uv.es
Corporate Author Thesis
Publisher World Scientific Publ Co Pte Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 0218-3013 ISBN Medium
Area Expedition Conference
Notes WOS:000319839500002 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1470
Permanent link to this record
 
 
Author Garcilazo, H.; Valcarce, A.; Vijande, J.
Title Neutral baryonic systems with strangeness Type Journal Article
Year 2020 Publication International Journal of Modern Physics E Abbreviated Journal Int. J. Mod. Phys. E
Volume 29 Issue 1 Pages 1930009 - 22pp
Keywords Few-body systems; baryon-baryon interaction; hypernuclei
Abstract We review the status as regards to the existence of three- and four-body bound states made of neutrons and Lambda hyperons. For interesting cases, the coupling to neutral baryonic systems made of charged particles of different strangeness has been addressed. There are strong arguments showing that the Lambda nn system has no bound states. Lambda Lambda nn strong stable states are not favored by our current knowledge of the strangeness -1 and -2 baryon-baryon interactions. However, a possible Xi(-) t quasibound state decaying to Lambda Lambda nn might exist in nature. Similarly, there is a broad agreement about the nonexistence of Lambda Lambda n bound states. However, the coupling to Xi NN states opens the door to a resonance above the Lambda Lambda n threshold.
Address [Garcilazo, H.] Inst Politecn Nacl, Escuela Super Fis & Matemat, Edificio 9, Mexico City 07738, DF, Mexico, Email: humberto@esfm.ipn.mx;
Corporate Author Thesis
Publisher World Scientific Publ Co Pte Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 0218-3013 ISBN Medium
Area Expedition Conference
Notes WOS:000527883500003 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 4381
Permanent link to this record
 
 
Author Valcarce, A.; Garcilazo, H.; Vijande, J.
Title Heavy baryon spectroscopy with relativistic kinematics Type Journal Article
Year 2014 Publication Physics Letters B Abbreviated Journal Phys. Lett. B
Volume 733 Issue Pages 288-295
Keywords
Abstract We present a comparative Faddeev study of heavy baryon spectroscopy with nonrelativistic and relativistic kinematics. We show results for different standard hyperfine interactions with both kinematics in an attempt to learn about the light quark dynamics. We highlight the properties of particular states accessible in nowadays laboratories that would help in discriminating between different dynamical models. The advance in the knowledge of light quark dynamics is a key tool for the understanding of the existence of exotic hadrons.
Address [Valcarce, A.] Univ Salamanca, Dept Fis Fundamental, E-37008 Salamanca, Spain
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 0370-2693 ISBN Medium
Area Expedition Conference
Notes WOS:000336430400050 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1806
Permanent link to this record
 
 
Author Vijande, J.; Valcarce, A.; Carames, T.F.; Garcilazo, H.
Title Heavy hadron spectroscopy: A quark model perspective Type Journal Article
Year 2013 Publication Nuclear Physics A Abbreviated Journal Nucl. Phys. A
Volume 914 Issue Pages 472-481
Keywords Heavy hadrons; Constituent quark model; Many-quark systems
Abstract We present recent results of hadron spectroscopy and hadron-hadron interaction from the perspective of constituent quark models. We pay special attention to the role played by higher order Fock space components in the hadron spectra and the connection of this extension with the hadron-hadron interaction. The main goal of our description is to obtain a coherent understanding of the low-energy hadron phenomenology without enforcing any particular model, to constrain its characteristics and learn about low-energy realization of the theory.
Address [Vijande, J.] UV, Dept Fis Atom Mol & Nucl, Valencia, Spain, Email: javier.vijande@uv.es
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 0375-9474 ISBN Medium
Area Expedition Conference
Notes WOS:000324847700067 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1599
Permanent link to this record
 
 
Author Vijande, J.; Valcarce, A.; Garcilazo, H.
Title Heavy-baryon quark model picture from lattice QCD Type Journal Article
Year 2014 Publication Physical Review D Abbreviated Journal Phys. Rev. D
Volume 90 Issue 9 Pages 094004 - 6pp
Keywords
Abstract The ground state and excited spectra of baryons containing three identical heavy quarks, b or c, have been recently calculated in nonperturbative lattice QCD. The energy of positive and negative parity excitations has been determined with high precision. Lattice results constitute a unique opportunity to learn about the quark-confinement mechanism as well as elucidating our knowledge about the nature of the strong force. We analyze the nonperturbative lattice QCD results by means of heavy-quark static potentials derived using SU(3) lattice QCD. We make use of different numerical techniques for the three-body problem.
Address [Vijande, J.] Univ Valencia, Dept Fis Atom Mol & Nucl, E-46100 Burjassot, Spain
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 1550-7998 ISBN Medium
Area Expedition Conference
Notes WOS:000344917200004 Approved no
Is ISI yes International Collaboration no
Call Number IFIC @ pastor @ Serial 2013
Permanent link to this record
 
 
Author Vijande, J.; Valcarce, A.; Garcilazo, H.
Title Constituent-quark model description of triply heavy baryon nonperturbative lattice QCD data Type Journal Article
Year 2015 Publication Physical Review D Abbreviated Journal Phys. Rev. D
Volume 91 Issue 5 Pages 054011 - 7pp
Keywords
Abstract This paper provides results for the spectra of triply charmed and bottom baryons based on a constituent-quark model approach. We take advantage of the assumption that potential models are expected to describe triply heavy baryons to a similar degree of accuracy as the successful results obtained in the charmonium and bottomonium sectors. The high precision calculation of the ground state and positive and negative parity excited states recently reported by nonperturbative lattice QCD provides us with a unique opportunity to confront model predictions with the data. This comparison may also help to build a bridge between two difficult to reconcile lattice QCD results, namely, the lattice SU(3) QCD static three-quark potential and the recent results of nonperturbative lattice QCD for the triply heavy baryon spectra.
Address [Vijande, J.] Univ Valencia, Dept Fis Atom Mol & Nucl, E-46100 Burjassot, Spain
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 1550-7998 ISBN Medium
Area Expedition Conference
Notes WOS:000352025200005 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2184
Permanent link to this record
 
 
Author Garcilazo, H.; Valcarce, A.; Vijande, J.
Title (4)(Lambda Lambda) n system Type Journal Article
Year 2017 Publication Chinese Physics C Abbreviated Journal Chin. Phys. C
Volume 41 Issue 7 Pages 074102 - 6pp
Keywords baryon-baryon interactions; few-body systems
Abstract Using local central Yukawa-type Malfliet-Tjon interactions reproducing the low-energy parameters and phase shifts of the nn system, and the latest updates of the n Lambda and Lambda Lambda Nijmegen ESCO8c potentials, we study the possible existence of a (4)(Lambda Lambda)n bound state. Our results indicate that the (4)(Lambda Lambda)n is unbound, being just above threshold. We discuss the role played by the S-1(0) nn repulsive term of the Yukawa-type Malfliet-Tjon interaction.
Address [Garcilazo, H.] Inst Politecn Nacl, Escuela Super Fis & Matemat, Edificio 9, Mexico City 07738, DF, Mexico, Email: humberto@esfm.ipn.mx;
Corporate Author Thesis
Publisher Chinese Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 1674-1137 ISBN Medium
Area Expedition Conference
Notes WOS:000406156700007 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3222
Permanent link to this record
 
 
Author Garcilazo, H.; Valcarce, A.; Vijande, J.
Title Xi(-)t quasibound state instead of Lambda Lambda nn bound state Type Journal Article
Year 2020 Publication Chinese Physics C Abbreviated Journal Chin. Phys. C
Volume 44 Issue 2 Pages 024102 - 7pp
Keywords baryon-baryon interactions; few-body systems; Faddeev equations
Abstract The coupled Lambda Lambda nn – Xi-pnn system was studied to investigate whether the inclusion of channel coupling is able to bind the Lambda Lambda nn system. We use a separable potential three-body model of the coupled Lambda Lambda nn – Xi-pnn system and a variational four-body calculation with realistic interactions. Our results exclude the possibility of a bound state by a large margin. Instead, we found a Xi(-)t quasibound state above the Lambda Lambda nn threshold.
Address [Garcilazo, H.] Inst Politecn Nacl, Escuela Super Fis & Matemat, Edificio 9, Mexico City 07738, DF, Mexico, Email: humberto@esfm.ipn.mx;
Corporate Author Thesis
Publisher Iop Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN (up) 1674-1137 ISBN Medium
Area Expedition Conference
Notes WOS:000509960900001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 4267
Permanent link to this record