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Author Molina, R.; Oset, E.
Title T-cS (2900) as a threshold effect from the interaction of the D* K *, D *(s)rho channels Type Journal Article
Year 2023 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 107 Issue 5 Pages 056015 - 7pp
Keywords
Abstract We look at the mass distribution of the D(S)(+)i Pi(-) In the B-0 ->(DDS+)-D-0 Pi(-)decay, where a peak has been observed in the region of the D (*) (s)rho, D* K* thresholds. By creating these two channels together with a D (0) in B-0 decay and letting them interact as coupled channels, we obtain a structure around their thresholds, short of producing a bound state, which leads to a peak in the D-S(+) Pi(-)mass distribution in the B-0 -> (DDS+)-D-0 Pi(-)decay. We conclude that the interaction between the D*K* and D (*) (s)rho is essential to produce the cusp structure that we associate to the recently seen Tcs(2900), and that its experimental width is mainly due to the decay width of the rho meson. The peak obtained together with a smooth background reproduces fairly well the experimental mass distribution observed in the B (0)-> (DDS+)-D-0 Pi(-) decay.
Address [Molina, R.] Univ Valencia, Ctr Mixto, Inst Invest Paterna, CSIC,Dept Fis Teor, Aptdo 22085, Valencia 46071, 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 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:000989395900006 Approved no
Is ISI yes International Collaboration no
Call Number IFIC @ pastor @ Serial 5568
Permanent link to this record
 
 
Author Molina, R.; Xiao, C.W.; Liang, W.H.; Oset, E.
Title Correlation functions for the N*(1535) and the inverse problem Type Journal Article
Year 2024 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 109 Issue 5 Pages 054002 - 10pp
Keywords
Abstract The N*(1535) can be dynamically generated in the chiral unitary approach with the coupled channels, K0E+; K+E0; K+A, and eta p. In this work, we evaluate the correlation functions for every channel and face the inverse problem. Assuming the correlation functions to correspond to real measurements, we conduct a fit to the data within a general framework in order to extract the information contained in these correlation functions. The bootstrap method is used to determine the uncertainties of the different observables, and we find that, assuming errors of the same order than in present measurements of correlation functions, one can determine the scattering length and effective range of all channels with a very good accuracy. Most remarkable is the fact that the method predicts the existence of a bound state of isospin 12 nature around the mass of the N*(1535) with an accuracy of 6 MeV. These results should encourage the actual measurement of these correlation functions (only the K+A one is measured so far), which can shed valuable light on the relationship of the N*(1535) state to these coupled channels, a subject of continuous debate.
Address [Molina, Raquel; Xiao, Chu -Wen; Liang, Wei -Hong; Oset, Eulogio] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: aquel.molina@ific.uv.es;
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 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:001179747300004 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 6000
Permanent link to this record
 
 
Author Gil-Dominguez, F.; Molina, R.
Title Quark mass dependence of the D*s0 (2317) and D s1 (2460) resonances Type Journal Article
Year 2024 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 109 Issue 9 Pages 096002 - 17pp
Keywords
Abstract We determine the quark mass dependence-light and heavy-of the D*s0(2317) and Ds1(2460) properties, such as, mass, coupling to D(*)K, scattering lengths and compositeness, from a global analysis I = 0 for different boosts and two pion masses. The formalism is based in the local hidden-gauge interaction of Weinberg-Tomozawa type which respects both chiral and heavy quark spin symmetries, supplemented by a term that takes into account the D(*)K coupling to a bare cs<overline> component. The isospin violating decay of the D*s0(2317) -> D+s pi 0 is also evaluated.
Address [Gil-Dominguez, F.; Molina, R.] Ctr Mixto Univ Valencia, Dept Fis Teor, CSIC, Parc Cientif UV,C Catedrat Jose Beltran 2, Paterna 46980, Spain, Email: fernando.gil@ific.uv.es;
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 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:001224715500005 Approved no
Is ISI yes International Collaboration no
Call Number IFIC @ pastor @ Serial 6134
Permanent link to this record
 
 
Author Bayar, M.; Molina, R.; Oset, E.; Liu, M.Z.; Geng, L.S.
Title Subtleties in triangle loops for Ds+ → ρ+ η → π+ π0 η in a0(980) production Type Journal Article
Year 2024 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 109 Issue 7 Pages 076027 - 7pp
Keywords
Abstract We address a general problem in the evaluation of triangle loops stemming from the consideration of the range of the interaction involved in some of the vertices, as well as the energy dependence of the width of some unstable particles in the loop. We find sizeable corrections from both effects. We apply that to a loop relevant to the D + s -> pi + pi 0 eta decay, and find reductions of about a factor of 4 in the mass distribution of invariant mass of the pi eta in the region of the a 0 ( 980 ) . The method used is based on the explicit analytical evaluation of the q 0 integration in the d 4 q loop integration, using Cauchy 's residues method, which at the same time offers an insight on the convergence of the integrals and the effect of form factors and cutoffs.
Address [Bayar, M.] Kocaeli Univ, Dept Phys, TR-41380 Izmit, Turkiye, Email: melahat.bayar@kocaeli.edu;
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 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:001236271000017 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 6211
Permanent link to this record
 
 
Author Feng, Y.C.; Gil, F.; Döring, M.; Molina, R.; Mai, M.; Shastry, V.; Szczepaniak, A.
Title Unitary coupled-channel three-body amplitude with pions and kaons Type Journal Article
Year 2024 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 110 Issue 9 Pages 094002 - 21pp
Keywords
Abstract Three-body dynamics above threshold is required for the reliable extraction of many amplitudes and resonances from experiment and lattice QCD. The S-matrix principle of unitarity can be used to construct dynamical coupled-channel approaches in which three particles scatter off each other, rearranging two-body subsystems by particle exchange. This paper reports the development of a three-body coupled-channel, amplitude including pions and kaons. The unequal-mass amplitude contains two-body S- and P-wave subsystems (“isobars”) of all isospins, I = 0, 1/2, 1,3/2, 2, and it also allows for transitions within a given isobar. The f 0 ( 500 )( 6 ) ,f 0 ( 980 ) , p ( 700 ) ,K * 0 ( 700 )( K ) , and K * ( 892 ) resonances are included, apart from repulsive isobars. Different methods to evaluate the amplitude for physical momenta are discussed. Production amplitudes for a 1 quantum numbers are shown as a proof of principle for the numerical implementation.
Address [Feng, Yuchuan; Doring, Michael; Mai, Maxim] George Washington Univ, Washington, DC 20052 USA, Email: fengyuchuan@gwmail.gwu.edu;
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 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:001350063800004 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 6332
Permanent link to this record
 
 
Author Liang, W.H.; Molina, R.; Oset, E.
Title Ωc→π+(π0, η)πΞ*, π+(π0, η)K¯Σ* reactions and the two Ξ(1820) states Type Journal Article
Year 2024 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 110 Issue 3 Pages 036005 - 9pp
Keywords
Abstract We have studied the Omega c-* pi+(pi 0, + ( pi 0 , eta)pi Xi ) pi Xi and Omega c-* pi+(pi 0, + ( pi 0 , eta ) K Sigma decays, where the final pi Xi Xi or K Sigma Sigma comes from the decay of two resonances around the nominal Xi ( 1820 ) , which are generated from the interaction of coupled channels made of a pseudoscalar and a baryon of the decuplet. The pi Xi Xi mass distributions obtained in the six different reactions studied are quite different, and we single out four of them, which are free of a tree level contribution, showing more clearly the effect of the resonances. The lower mass resonance is clearly seen as a sharp peak, but the higher mass resonance manifests itself through an interference with the lower one that leads to a dip in the mass distribution around 1850 MeV. Such a feature is similar to the dip observed in the S- wave pi pi cross section around the 980 MeV coming from the interference of the f 0 ( 500 ) and f 0 ( 980 ) resonances. Its observation in coming upgrades of present facilities will shed light on the existence of these two resonances and their nature. On the other hand, when the Omega c-* pi+(pi 0, + ( pi 0 , eta ) K Sigma reactions are studied, both peaks are observed.
Address [Liang, Wei-Hong; Oset, Eulogio] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: liangwh@gxnu.edu.cn;
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 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:001347981700002 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 6338
Permanent link to this record
 
 
Author Gil-Domínguez, F.; Giachino, A.; Molina, R.
Title Quark mass dependence of the Tcc(3875) + pole Type Journal Article
Year 2025 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 111 Issue 1 Pages 016029 - 21pp
Keywords
Abstract Recently, several LQCD simulations have proven that the interaction in the isoscalar channel in DD* scattering is attractive. This channel is naturally connected to the Tcc(3875)+ which is observed in the D0D0,c+ invariant mass distribution. However, it remains an open question whether the virtual bound state found in these several LQCD simulations is actually linked to the LHCb experimental observation. In this article we perform an EFT-based analysis of the LQCD data and demonstrate that a proper chiral extrapolation leads to a Tcc pole compatible with experiment. At the physical pion mass, we find a virtual bound state with a binding energy Delta E = -0.06(+1.30 -2.20)(+0.5-1.110).Moreover, we extract from a global analysis both the light and heavy quark mass dependence of the Tcc pole and study the role of the p- and i-meson exchanges.
Address [Gil-Dominguez, F.; Giachino, A.; Molina, R.] Parc Cientif UV, Ctr Mixto Univ Valencia, CSIC, Dept Fis Teor, C Catedrat Jose Beltran 2, Paterna 46980, Spain, Email: Fernando.Gil@ific.uv.es;
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 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:001438175900018 Approved no
Is ISI yes International Collaboration no
Call Number IFIC @ pastor @ Serial 6549
Permanent link to this record
 
 
Author Zhai, Q.Y.; Molina, R.; Oset, E.; Geng, L.S.
Title Study of the exotic three-body ND*Kbar* system Type Journal Article
Year 2025 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 111 Issue 3 Pages 034039 - 6pp
Keywords
Abstract We have studied the ND*K<overline>* system in the framework of the fixed center approximation to the Faddeev equations, taking the exotic D*K<overline>* system as the cluster and allowing the N to interact with the components of the cluster. Previous studies have determined the existence of three states of spin 0, 1, 2 for the D*K<overline>* system, the one of spin 0 associated to the X0(2900) state observed by the LHCb Collaboration. From this perspective, we find five states with total spin 1/2, 3/2, 5/2, with bindings from 10 to 30 MeV and widths below 60 MeV, which could be well identified. We also discuss the decay channels of these states that should help in future experimental searches for these states.
Address [Zhai, Qing-Yu; Geng, Li-Sheng] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China, Email: Raquel.Molina@ific.uv.es;
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 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:001454808400008 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 6605
Permanent link to this record
 
 
Author Wu, J.J.; Molina, R.; Oset, E.; Zou, B.S.
Title Prediction of Narrow N* and Lambda* Resonances with Hidden Charm above 4 GeV Type Journal Article
Year 2010 Publication (up) Physical Review Letters Abbreviated Journal Phys. Rev. Lett.
Volume 105 Issue 23 Pages 232001 - 4pp
Keywords
Abstract The interaction between various charmed mesons and charmed baryons is studied within the framework of the coupled-channel unitary approach with the local hidden gauge formalism. Several meson-baryon dynamically generated narrow N* and Lambda* resonances with hidden charm are predicted with mass above 4 GeV and width smaller than 100 MeV. The predicted new resonances definitely cannot be accommodated by quark models with three constituent quarks and can be looked for in the forthcoming PANDA/FAIR experiments.
Address [Wu, Jia-Jun; Zou, B. S.] CAS, Inst High Energy Phys, Beijing 100049, Peoples R China
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 0031-9007 ISBN Medium
Area Expedition Conference
Notes ISI:000286731400003 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 526
Permanent link to this record
 
 
Author Molina, R.; Xie, J.J.; Liang, W.H.; Geng, L.S.; Oset, E.
Title Theoretical interpretation of the D-s(+) -> pi(+)pi(0)eta decay and the nature of a(0)(980) Type Journal Article
Year 2020 Publication (up) Physics Letters B Abbreviated Journal Phys. Lett. B
Volume 803 Issue Pages 135279 - 4pp
Keywords
Abstract In a recent paper [I], the BESIII Collaboration reported the so-called first observation of pure W-annihi- lation decays D-s(+) -> a(0)(+) (980)pi(0) and D-s(+) -> a(0)(0)(980)pi(+). The measured absolute branching fractions are, however, puzzlingly larger than those of other measured pure W-annihilation decays by at least one order of magnitude. In addition, the relative phase between the two decay modes is found to be about 0 degrees. In this letter, we show that all these can be easily understood if the a(0)(980) is a dynamically generated state from (K) over barK and pi eta interactions in coupled channels. In such a scenario, the D-s(+) decay proceeds via internal W emission instead of W-annihilation, which has a larger decay rate than W-annihilation. The proposed decay mechanism and the molecular nature of the a(0)(980) also provide a natural explanation to the measured negative interference between the two decay modes.
Address [Molina, Raquel; Liang, Wei-Hong; Oset, Eulogio] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: raqumoli@ucm.es;
Corporate Author Thesis
Publisher Elsevier Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0370-2693 ISBN Medium
Area Expedition Conference
Notes WOS:000521730300066 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 4356
Permanent link to this record