2014
DOI: 10.1103/physrevd.89.094506
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Low-energy scattering of the(DD¯*)±system and the resonance-like structure

Abstract: In this exploratory lattice study, low-energy scattering of the (DD * ) ± meson system is analyzed using lattice QCD with N f = 2 twisted mass fermion configurations with three pion mass values. The calculation is performed within single-channel Lüscher's finite-size formalism. The threshold scattering parameters, namely the scattering length a0 and the effective range r0, for the s-wave scattering in J P = 1 + channel are extracted. For the cases in our study, the interaction between the two charmed mesons is… Show more

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Cited by 66 publications
(40 citation statements)
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References 29 publications
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“…The authors of Refs. [205,243,467] noticed that it is not so easy to accommodate Z c (3900) as an isovector DD * molecular bound state, which is supported by several Lattice studies [468,469,470,471]. Prelovsek and Leskovec searched for the Z c (3900) on the lattice in the channel with J PC = 1 +− and I = 1 without success [468].…”
Section: Other Molecular Models On the Z C (3900) And Z C (4025)mentioning
confidence: 98%
See 1 more Smart Citation
“…The authors of Refs. [205,243,467] noticed that it is not so easy to accommodate Z c (3900) as an isovector DD * molecular bound state, which is supported by several Lattice studies [468,469,470,471]. Prelovsek and Leskovec searched for the Z c (3900) on the lattice in the channel with J PC = 1 +− and I = 1 without success [468].…”
Section: Other Molecular Models On the Z C (3900) And Z C (4025)mentioning
confidence: 98%
“…In Ref. [470], Chen et al analyzed the low-energy scattering of the DD * meson system using Lattice QCD with N f = 2 twisted mass fermion configurations with three pion mass values. Their results indicated a weak repulsive interaction between the two mesons D andD * , and did not support a bound state in this channel corresponding to the Z c (3900).…”
Section: Other Molecular Models On the Z C (3900) And Z C (4025)mentioning
confidence: 99%
“…Possible interpretations are tetra-quark [6], hadro-charmonium [7], D * D molecule [8] and threshold effects [9][10][11]. Lattice QCD studies provide theoretical support for the existence of X(3872) [12] but not for the Z c (3900) [13][14][15][16][17]. However, those studies were carried out on small volumes with unphysically heavy up and down quarks.…”
Section: Introductionmentioning
confidence: 99%
“…Then, building two-meson operators in these corresponding channels with the right quantum numbers will allow us to explore the problem within this single-channel approximation. CLQCD had estimated the effects of other operators/channels, making sure that they do not ruin the major channel correlators [64,65]. Partially twisted boundary conditions have been utilized to fully explore the near threshold region.…”
Section: Pos(lattice2016)006mentioning
confidence: 99%