Dynamically generated <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msup><mml:mn>0</mml:mn><mml:mo>+</mml:mo></mml:msup></mml:math> heavy mesons in a heavy chiral unitary approach

Guo, Feng-Kun; Shen, Peng-Nian; Chiang, H. C.; Ping, Rong-Gang; Zou, Bing-Song

doi:10.1016/j.physletb.2006.08.064

Cited by 259 publications

(183 citation statements)

References 46 publications

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“…We use the unitarization approach that has been extensively employed to discuss the D * s0 (2317) previously in Refs. [12,13,16,18,19]. This unitarization method was also used to study many other important phenomenons in hadron physics, such as the light-flavor meson resonances [27,28,40], the Λ(1405) [41], etc.…”

Section: Chiral Amplitudes and Their Unitarizationmentioning

confidence: 99%

“…The second-Riemann-sheet pole is consistent with the observations made in by Refs. [14][15][16]19]. This pole can be regarded as a broad D * 0 (0, 1 2 ) state strongly coupled to the Dπ threshold.…”

Section: Fits To Lattice Simulation Datamentioning

confidence: 99%

“…Therefore we consider it is a good approximation to exclude the vector D * mesons when focusing only on the S-wave charmed D meson and pNGB scattering. Within the framework of covariant heavy meson χPT by taking the D (s) and the octet of pNGBs as the dynamical fields, the leading order (LO) [14][15][16], next-to-leading order (NLO) [12,13,[17][18][19] and next-to-next-to-leading order (NNLO) [20,21] calculations have been performed to investigate the properties of D * s0 (2317). The pole trajectories with varying up/down-and strange-quark masses are useful quantities to further probe the inner structure of the hadrons, e.g.…”

Section: Introductionmentioning

confidence: 99%

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New insights into theDs0*(2317)and other charm scalar mesons

2015

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Through the scattering of light-pseudoscalar mesons (π, K, η, η ′ ) off charmed mesons (D, D s ), we study the D * s0 (2317) state and other relevant charm scalar mesons in a unitarized chiral effective field theory approach. We investigate the charm scalar meson poles with different strangeness (S) and isospin (I) quantum numbers as well as their corresponding residues, which provide the coupling strengths of the charm scalar mesons. Both the light-quark mass and N C dependences of the pole positions of the D * s0 (2317) and the poles with (S, I) = (0, 1/2) are analyzed in detail in this work. Interestingly we observe quite similar pion mass trajectories for the resonance pole at around 2.1 GeV with (S, I) = (0, 1/2) to those of the f 0 (500) given in the literature. When increasing the values of N C we find that a bound state and a virtual state in the (S, I) = (1, 0) channel asymmetrically approach the DK threshold for N C < 6, and they meet at this threshold at N C = 6. When N C > 6, the bound and virtual states move into the complex plane on the second Riemann sheet and become a symmetric pair of resonance poles. For large enough values of N C , neither the D * s0 (2317) pole nor the poles with (S, I) = (0, 1/2) tend to fall down to the real axis, indicating that they do not behave like a standard quark-antiquark meson at large N C .

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Section: Chiral Amplitudes and Their Unitarizationmentioning

confidence: 99%

Section: Fits To Lattice Simulation Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New insights into theDs0*(2317)and other charm scalar mesons

2015

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“…Because of its low mass, the structure of this meson has been extensively discussed. The suggested interpretations cover a wide range: cs state [11][12][13][14][15][16], two-meson molecular state [17][18][19][20][21][22][23][24][25][26][27], K -D mixing [28], four-quark states [29][30][31][32][33] or a mixture between two-meson and four-quark states [34].…”

Section: Introductionmentioning

confidence: 99%

$$D^*_{s0}(2317)$$ D s 0 ∗ ( 2317 ) and $$\textit{DK}$$ DK scattering in B decays from BaBar and LHCb data

2016

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“…Including the heavy flavor meson sector other possible molecular states can arise. For example, the scalar and axial charm D * s0 (2317), D s1 (2460) and bottom B * s0 (5725) and B s1 (5778) mesons can be treated as DK, D * K, BK and B * K bound states [7,8,10,11,12], respectively. Other candidates for a hadronic molecule interpretation are the X(3872) as a D 0D * 0 + charge conjugate (c.c) bound state, Y (4260) as a DD 1 -c.c.…”

Section: Introductionmentioning

confidence: 99%