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Du, ML; Guo, FK; Meissner, UG
Implications of chiral symmetry on S-wave pionic resonances and the scalar charmed mesons
Source PublicationPHYSICAL REVIEW D
AbstractThe chiral symmetry of QCD requires energy-dependent pionic strong interactions at low energies. This constraint, however, is not fulfilled by the usual Breit-Wigner parametrization of pionic resonances, leading to masses larger than the real ones. We derive relations between nonleptonic three-body decays of the B meson into a D meson and a pair of light pseudoscalar mesons based on SU(3) chiral symmetry. Employing effective field theory methods, we demonstrate that taking into account the final-state interactions, the experimental data of the decays B--> D+pi(-)pi(-), B-s(0)-> (D) over bar (0) K-pi(+), B-0 -> (D) over bar (0)pi(-)pi(+), B- -> D+pi K--(-) and B-0 -> (D ) over bar (0)pi K--(+) can all be described by the nonperturbative pi/eta/K-D/D-s scattering amplitudes previously obtained from a combination of chiral effective field theory and lattice QCD calculations. The results provide strong support of the scenario that the broad scalar charmed meson D-0*(2400) should be replaced by two states, the lower one of which has a mass of around 2.1 GeV, much smaller than that extracted from experimental data using a Breit-Wigner parametrization.
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
Indexed BySCIE
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.[Du, Meng-Lin
2.Meissner, Ulf-G.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
3.Meissner, Ulf-G.] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
6.[Meissner, Ulf-G.] Forschungszentrum Julich, Inst Kernphys, Inst Adv Simulat, D-52425 Julich, Germany
7.[Meissner, Ulf-G.] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
8.[Meissner, Ulf-G.] Tbilisi State Univ, Tbilisi 0186, Georgia
Recommended Citation
GB/T 7714
Du, ML,Guo, FK,Meissner, UG. Implications of chiral symmetry on S-wave pionic resonances and the scalar charmed mesons[J]. PHYSICAL REVIEW D,2019,99(11):114002.
APA Du, ML,Guo, FK,&Meissner, UG.(2019).Implications of chiral symmetry on S-wave pionic resonances and the scalar charmed mesons.PHYSICAL REVIEW D,99(11),114002.
MLA Du, ML,et al."Implications of chiral symmetry on S-wave pionic resonances and the scalar charmed mesons".PHYSICAL REVIEW D 99.11(2019):114002.
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