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Author Albaladejo, M.; Nieves, J.; Oset, E.; Sun, Z.F.; Liu, X.
Title Can X(5568) be described as a B-s pi, B(K)over-bar resonant state? Type Journal Article
Year 2016 Publication Physics Letters B Abbreviated Journal Phys. Lett. B
Volume 757 Issue Pages 515-519
Keywords
Abstract The DO Collaboration has recently seen a resonant-like peak in the B-s pi invariant mass spectrum, claimed to be a new state called X(5568). Using a B-s pi-B (K) over bar coupled channel analysis, implementing unitarity, and with the interaction derived from Heavy Meson Chiral Perturbation Theory, we are able to reproduce the reported spectrum, with a pole that can be associated to the claimed X(5568) state, and with mass and width in agreement with the ones reported in the experimental analysis. However, if the T-matrix regularization is performed by means of a momentum cutoff, the value for the latter needed to reproduce the spectrum is Lambda = 2.80 +/- 0.04 GeV, which is much larger than a “natural” value Lambda similar or equal to 1 GeV. In view of this, it is difficult to interpret the nature of this new state. This state would not qualify as a resonance dynamically generated by the unitarity loops. Assuming the observed peak to correspond to a physical state, we make predictions for partners in the D, D*, and B* sectors. Their observation (or lack thereof) would shed light into this issue.
Address [Albaladejo, Miguel; Nieves, Juan; Oset, Eulogio; Sun, Zhi-Feng] Univ Valencia, CSIC, Inst Invest Paterna, Inst Fis Corpuscular IFIC,Ctr Mixto, Aptd 22085, E-46071 Valencia, Spain, Email: Miguel.Albaladejo@ific.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 (down) Series Issue Edition
ISSN 0370-2693 ISBN Medium
Area Expedition Conference
Notes WOS:000376800300072 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2698
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Author Zhou, B.; Sun, Z.F.; Liu, X.; Zhu, S.L.
Title Chiral corrections to the 1(-+) exotic meson mass Type Journal Article
Year 2017 Publication Chinese Physics C Abbreviated Journal Chin. Phys. C
Volume 41 Issue 4 Pages 043101 - 12pp
Keywords exotic mesons; hybrid state; lattice QCD
Abstract We first construct the effective chiral Lagrangians for the 1(-+) exotic mesons. With the infrared regularization scheme, we derive the one-loop infrared singular chiral corrections to the pi(1) (1600) mass explicitly. We investigate the variation of the different chiral corrections with the pion mass under two schemes. Hopefully, the explicit non-analytical chiral structures will be helpful for the chiral extrapolation of lattice data from the dynamical lattice QCD simulation of either the exotic light hybrid meson or the tetraquark state.
Address [Zhou, Bin] Peking Univ, Dept Phys, Beijing 100871, Peoples R China, Email: binzhou@pku.edu.cn;
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 (down) Series Issue Edition
ISSN 1674-1137 ISBN Medium
Area Expedition Conference
Notes WOS:000400124800001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3106
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Author Sun, Z.F.; Xie, J.J.; Oset, E.
Title Bottom strange molecules with isospin 0 Type Journal Article
Year 2018 Publication Physical Review D Abbreviated Journal Phys. Rev. D
Volume 97 Issue 9 Pages 094031 - 9pp
Keywords
Abstract Using the local hidden gauge approach, we study the possibility of the existence of bottom strange molecular states with isospin 0. We find three bound states with spin parity 0(+), 1(+), and 2(+) generated by the (K) over bar *B* and omega B-s(*) interaction, among which the state with spin 2 can be identified as B(s2)(*()5840). In addition, we also study the (K) over bar *B* and omega B-s(*) interaction and find a bound state which can be associated to B-s1(5830). In addition, the (K) over barB*, eta B-s(*)(K) over barB, and eta B-s systems are studied, and two bound states are predicted. We expect that further experiments can confirm our predictions.
Address [Sun, Zhi-Feng] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China, Email: sunzf@lzu.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 (down) Series Issue Edition
ISSN 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:000433912000003 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3615
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Author Hiller Blin, A.N.; Sun, Z.F.; Vicente Vacas, M.J.
Title Electromagnetic form factors of spin-1/2 doubly charmed baryons Type Journal Article
Year 2018 Publication Physical Review D Abbreviated Journal Phys. Rev. D
Volume 98 Issue 5 Pages 054025 - 13pp
Keywords
Abstract We study the electromagnetic form factors of the doubly charmed baryons, using covariant chiral perturbation theory within the extended on-mass-shell scheme. Vector-meson contributions are also taken into account. We present results for the baryon magnetic moments, charge, and magnetic radii. While some of the chiral Lagrangian parameters could be set to values determined in previous works, the available lattice results for Xi(+)(CC) and Omega(+)(CC) only allow for robust constraints on the low-energy constant combination, c(89) (= -1/3 c(8) + 4c(9)). The couplings of the doubly charmed baryons to the vector mesons have been estimated assuming the Okubo-Zweig-Iizuka rule. We also give the expressions for the form factors of the double-beauty baryons considering the masses predicted in the framework of quark models. A comparison of our results with those obtained in heavy baryon chiral perturbation theory at the same chiral order is made.
Address [Blin, Astrid N. Hiller] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany, Email: hillerbl@uni-mainz.de;
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 (down) Series Issue Edition
ISSN 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:000445503600008 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3739
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Author Dias, J.M.; Yu, Q.X.; Liang, W.H.; Sun, Z.F.; Xie, J.J.; Oset, E.
Title Xi(bb) and Omega(bbb) molecular states Type Journal Article
Year 2020 Publication Chinese Physics C Abbreviated Journal Chin. Phys. C
Volume 44 Issue 6 Pages 064101 - 8pp
Keywords doubly-heavy baryons; strong interaction; molecular state
Abstract Using the vector exchange interaction in the local hidden gauge approach, which in the light quark sector generates the chiral Lagrangians and has produced realistic results for Omega(C), Xi(c), Xi(b) and the hidden charm pentaquark states, we study the meson-baryon interactions in the coupled channels that lead to the Xi(bb) and Omega(bbb) excited states of the molecular type. We obtain seven states of the Xi(bb) type with energies between and MeV, and one Omega(bbb) state at MeV.
Address [Dias, J. M.; Yu, Qi-Xin; Liang, Wei-Hong; Oset, E.] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: isengardjor@gmail.com;
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 (down) Series Issue Edition
ISSN 1674-1137 ISBN Medium
Area Expedition Conference
Notes WOS:000541533100001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 4432
Permanent link to this record