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

Albaladejo, M.; Nieves, J.; Oset, E.

doi:10.1140/epjc/s10052-016-4144-3

Cited by 46 publications

(35 citation statements)

References 69 publications

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“…An excess of events in the DK invariant mass distributions, close to the threshold, has been experimentally observed in similar decays of B and B s mesons [7,8]. The main idea is to show that this feature is also observed in our decay process, and due to the dynamically generation of the D * s0 (2317) + .…”

Section: Introductionsupporting

confidence: 53%

“…As we have mentioned at the introduction, the threshold enhancement has been observed experimentally in several decays of heavy mesons, see for example in Ref. [7,8] the B's and B s 's decays into KD final states. We are presenting an unmeasured reaction where this feature is also predicted, but in our case is due to the dynamically generation of the D * s0 (2317).…”

Section: Resultsmentioning

confidence: 93%

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The $D_{s0}^{*}(2317)$ and its Relation with the $B_{c} \to J/\Psi KD$ Weak Decay

Fernández-Soler¹,

Sun²,

Bayar³

et al. 2017

Proceedings of the 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016)

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In this work we study the decay of a B c into a final state of J/ψDK mesons. We compute the KD invariant mass distribution considering that the heavy meson decays via weak interaction into a cs quark pair, which hadronizes into final meson states. The D * s0 (2317) scalar resonance is dynamically generated by the interaction of the final state. We describe the interaction of mesons by a phenomenological Lagrangian. The parameters of the model are fine tuned in order to reproduce the mass of the scalar resonance, and then we predict the KD invariant mass distribution of the decay and the ratio of the processes B c → J/ψDK and B c → J/ψD * s0 (2317). This reaction proposed here has not been measured yet, and it can be sensitive to the nature of the D * s0 (2317).

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Section: Introductionsupporting

confidence: 53%

Section: Resultsmentioning

confidence: 93%

The $D_{s0}^{*}(2317)$ and its Relation with the $B_{c} \to J/\Psi KD$ Weak Decay

Fernández-Soler¹,

Sun²,

Bayar³

et al. 2017

Proceedings of the 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016)

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“…Particular interest has been paid to the positive-parity charm-strange mesons D * s0 (2317) and D s1 (2460) observed in 2003 by the BaBar (Aubert et al, 2003) and CLEO (Besson et al, 2003) Collaborations. The masses of D * s0 (2317) and D s1 (2460) are below the DK and D * K thresholds, respectively, by about the same amount, only 45 MeV (see Table I and references therein), which makes them natural candidates for hadronic molecules (Albaladejo et al, 2016c;Barnes et al, 2003;van Beveren and Rupp, 2003;Cleven et al, 2014aCleven et al, , 2011bFaessler et al, 2007;Flynn and Nieves, 2007;Gamermann et al, 2007;Guo et al, 2007Guo et al, , 2006Hofmann and Lutz, 2004;Kolomeitsev and Lutz, 2004;Szczepaniak, 2003;, while also other explanations such as P -wave cs states and tetraquarks exist in the literature. We will come back to the properties of these states occasionally in this review.…”

Section: B Open Heavy-flavor Mesonsmentioning

confidence: 99%

Hadronic molecules

et al. 2018

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A large number of experimental discoveries especially in the heavy quarkonium sector that did not at all fit to the expectations of the until then very successful quark model led to a renaissance of hadron spectroscopy. Among various explanations of the internal structure of these excitations, hadronic molecules, being analogues of light nuclei, play a unique role since for those predictions can be made with controlled uncertainty. We review experimental evidences of various candidates of hadronic molecules, and methods of identifying such structures. Nonrelativistic effective field theories are the suitable framework for studying hadronic molecules, and are discussed in both the continuum and finite volumes. Also pertinent lattice QCD results are presented. Further, we discuss the production mechanisms and decays of hadronic molecules, and comment on the reliability of certain assertions often made in the literature.

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“…There have thus been extensive discussions on the D * s0 (2317), such as a cs state [112,113,114,115,116], two-meson molecular state [117,118,119,120,121,122], D-K mixing [123], tetraquark state [124,125,126,127], or a mixture of two-meson and tetraquark states [128]. Also, in terms of the compositeness, the KD molecular component of the D * s0 (2317) has been studied experimentally via some observables [129], and a lattice simulation [130] has indicated the existence of a dominant KD molecular component of about 70% in the D * s0 (2317) wave function.…”

Section: Heavy Hadronsmentioning

confidence: 99%

Exotic hadrons from heavy ion collisions

Cho

Hyodo

Jido

et al. 2017

Progress in Particle and Nuclear Physics

135

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High energy heavy ion collisions are excellent ways for producing heavy hadrons and composite particles, including the light (anti)nuclei. With upgraded detectors at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC), it has become possible to measure hadrons beyond their ground states. Therefore, heavy ion collisions provide a new method for studying exotic hadrons that are either molecular states made of various hadrons or compact system consisting of multiquarks. Because their structures are related to the fundamental properties of Quantum Chromodynamics (QCD), studying exotic hadrons is currently one of the most active areas of research in hadron physics. Experiments carried out at various accelerator facilities have indicated that some exotic hadrons may have already been produced. The present review is a summary of the current understanding of a selected set of exotic particle candidates that can be potentially measured in heavy ion collisions. It also includes discussions on the production of resonances, exotics and hadronic molecular states in these collisions based on the coalescence model and the statistical model. A more detailed discussion is given on the results from these models, leading to the conclusion that the yield of a hadron that is a compact multiquark state is typically an order of magnitude smaller than if it is an excited hadronic state with normal quark numbers or a loosely bound hadronic molecule. Attention is also given to some of the proposed heavy exotic hadrons that could be produced with sufficient abundance in heavy ion collisions because of the significant numbers of charm and bottom quarks that are produced at RHIC and even larger numbers at LHC, making it possible to study them in these experiments. Further included in the discussion are the general formalism for the coalescence model that involves resonance particles and its implication on the present estimated yield for resonance production. 1 arXiv:1702.00486v1 [nucl-th] 1 Feb 2017Finally, a review is given on recent studies to constrain the hadron-hadron interaction through correlation measurements in heavy ion collisions and their implications on the interpretation and the possible existence of exotic states in hadronic interactions.

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

Abstract: We study the experimental DK invariant mass spectra of the reactions

Cited by 46 publications

References 69 publications

The \(D_{s0}^{*}(2317)\) and its Relation with the \(B_{c} \to J/\Psi KD\) Weak Decay

The \(D_{s0}^{*}(2317)\) and its Relation with the \(B_{c} \to J/\Psi KD\) Weak Decay

Hadronic molecules

Exotic hadrons from heavy ion collisions

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