Heavy quark S- to P-wave transitions in a consistent quark model

We report on a study of B mesons decaying into one of the narrow P -wave charm resonances, [Formula: see text] and D1(2420)0. Our preliminary results are based on 89 million [Formula: see text] pairs collected with the BABAR detector at the PEP-II asymmetric B Factory. Our study will be useful in the investigation of the properties of Heavy Quark Effective Theory.

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Understanding X(3862), X(3872), and X(3930) spectrum in a Friedrichs-model-like scheme

EPJ Web of Conferences ◽

10.1051/epjconf/201818202129 ◽

2018 ◽

Vol 182 ◽

pp. 02129

Author(s):

Zhiguang Xiao ◽

Zhi-Yong Zhou

Keyword(s):

Quark Model ◽

Good Accuracy ◽

Bound State ◽

P Wave ◽

Hadron Interaction ◽

Friedrichs Model ◽

Charmonium States

In this talk, we review the method we proposed to use the Friedrichs-like model combined with QPC model to include the hadron interaction corrections to the spectrum predicted by the quark model, in particular the Godfrey-Isgur model. This method is then used on the first excited P-wave charmonium states, and X(3862), X(3872), and X(3930) state could be simultaneously produced with a quite good accuracy. The X(3872) state is shown to be a bound state with a large DD* continuum component. At the same time, the hc(2P) state is perdicted at about 3902 MeV with a pole width of about 54 MeV.

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Heavy-quark binding and kinetic energies in heavy-light mesons and the constituent quark model

Physics Letters B ◽

10.1016/s0370-2693(97)01288-4 ◽

1997 ◽

Vol 415 (3) ◽

pp. 273-279 ◽

Cited By ~ 6

Author(s):

Silvano Simula

Keyword(s):

Heavy Quark ◽

Quark Model ◽

Constituent Quark ◽

Constituent Quark Model ◽

Light Mesons

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Heavy Quark Limit of Weak Transition Form Factors in a Light-Cone Constituent Quark Model

Communications in Theoretical Physics ◽

10.1088/0253-6102/26/3/347 ◽

1996 ◽

Vol 26 (3) ◽

pp. 347-354

Author(s):

Xiao-ming Xu

Keyword(s):

Heavy Quark ◽

Quark Model ◽

Light Cone ◽

Constituent Quark ◽

Form Factors ◽

Constituent Quark Model ◽

Transition Form ◽

Heavy Quark Limit ◽

Weak Transition

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Spectroscopy of heavy quark hadrons

International Journal of Modern Physics E ◽

10.1142/s0218301314610072 ◽

2014 ◽

Vol 23 (07) ◽

pp. 1461007

Author(s):

Makoto Oka

Keyword(s):

Heavy Quark ◽

Bound States ◽

Heavy Quarks ◽

P Wave ◽

Charmed Baryon ◽

Hadron Spectroscopy ◽

Distinct Features

Heavy quarks play special roles in the hadron spectroscopy. Some distinct features of heavy quark dynamics and their significance in the P-wave baryons with a single heavy quark are discussed. We also explore a new color configuration in exotic tetra-quark mesons with two heavy quarks. Finally, possibility of bound states of a charmed baryon with a nucleon and nuclei are examined.

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SYMMETRIES AND SYSTEMATICS OF DOUBLY HEAVY HADRONS

International Journal of Modern Physics A ◽

10.1142/s0217751x1250039x ◽

2012 ◽

Vol 27 (08) ◽

pp. 1250039 ◽

Cited By ~ 8

Author(s):

B. EAKINS ◽

W. ROBERTS

Keyword(s):

Experimental Data ◽

Excitation Energy ◽

Heavy Quark ◽

Quark Model ◽

Strange Quark ◽

Heavy Meson ◽

Heavy Quarks ◽

Heavy Mesons ◽

Heavy Baryons

We discuss the extension of the superflavor symmetry of doubly heavy baryons to states which contain an excited heavy diquark and we examine some of the consequences of this symmetry for the spectra of doubly heavy baryons and heavy mesons. We explore the ramifications of a proposed symmetry that relates heavy diquarks to doubly heavy mesons. We present a method for determining how the excitation energy of a system containing two heavy quarks will scale as one changes the strength of the interactions and the reduced mass of the system. We use this to derive consequences of the heavy diquark-doubly heavy meson symmetry. We compare these consequences to the results of a quark model as well as the experimental data for doubly and singly heavy mesons. We also discuss the possibility of treating the strange quark as a heavy quark and apply the ideas developed here to strange hadrons.

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NON-LEPTONIC WEAK TRANSITIONS WITH ΔI = 1/2 RULE IN DIQUARK-QUARK MODEL USING THE PAULI-GÜRSEY SYMMETRY

Modern Physics Letters A ◽

10.1142/s0217732394000885 ◽

1994 ◽

Vol 09 (12) ◽

pp. 1059-1069 ◽

Cited By ~ 5

Author(s):

K. SUZUKI ◽

H. TOKI

Keyword(s):

Quark Model ◽

Ground State ◽

Wave Functions ◽

P Wave ◽

Standard Process ◽

Weak Process ◽

Pion Emission ◽

Spin Singlet ◽

Weak Transitions

We study the non-leptonic weak transitions of ground state baryons in diquark-quark model. These weak transitions exhibit the ΔI = 1/2 rule, which is hard to account for in the standard weak process. If the diquark correlations are strong among flavor-antitriplet and spin-singlet pairs, we can make the weak transitions among diquarks followed by pion emission much stronger than the standard process. We estimate all the non-leptonic weak transitions of ground state baryons by assuming the Pauli-Gürsey symmetry together with the SU(6) wave functions. We can account for all the P-wave transition strengths quantitatively and hence the ΔI = 1/2 rule.

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