$$D_{s1}^*(2860)$$ D s 1 ∗ ( 2860 ) and $$D_{s3}^*(2860)$$ D s 3 ∗ ( 2860 ) : candidates for $$1D$$ 1 D charmed-strange mesons

Song, Qingbao; Chen, Dian-Yong; Liu, Xiang; Matsuki, Takayuki

doi:10.1140/epjc/s10052-015-3265-4

Cited by 25 publications

(12 citation statements)

References 45 publications

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“…In Refs. [72][73][74][75], the R values of the low-lying mesons were determined by the relativistic quark model and with these R parameters, the decays of the mesons were also investigated, and the obtained results were consistent with the experimental measurements. Fig.…”

Section: This Branching Ratio Is Of the Same Order As The B[bsupporting

confidence: 58%

“…In this model, the quark-antiquark pair is created from the vacuum with the J PC = 0 ++ , thus the QPC model is also named 3 P 0 model, which was proposed by Micu [62][63][64][65][66][67] and widely used to calculate the OZI allowed decay process [68][69][70][71][72][73][74]76]. For the OZI allowed strong decay process A → BC, the corresponding S-matrix is,…”

Section: This Branching Ratio Is Of the Same Order As The B[bmentioning

confidence: 99%

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Where are $$\chi _{cJ}(3P)$$ χ c J ( 3 P ) ?

Chen

2016

Eur. Phys. J. C

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In the present work, we propose Y (4140) as the χ c1 (3P) state by studying the χ c1 π + π − invariant mass spectrum of the B → K χ c1 π + π − process. In the DD invariant mass spectrum of the B → K DD process, we find a new resonance with the mass and width to be (4083.0 ± 5.0) and (24.1 ± 15.4) MeV, respectively, which could be a good candidate of the χ c0 (3P) state. The theoretical investigations on the decay behaviors of the χ cJ (3P) in the present work support the assignments of the Y (4140) and Y (4080) as the χ c1 (3P) and χ c0 (3P) states, respectively. In addition, the χ c2 (3P) state is predicted to be a very narrow state. The results in the present work could be tested by further experiments in the LHCb and forthcoming Belle II.When checking the mass spectrum of the charmonia, one can find the charmonia above 4 GeV are not abundant and our understanding of these states is not comprehensive. In the past decade, a number of the charmonium-like states around 4 GeV have been observed experimentally (see Ref.[1] for details), which provides us a good opportunity to expand our knowledge of the charmonia spectrum. For the P wave spintriplet, the ground states have been well established a long time ago, which are χ c0 (3414), χ c1 (3510), and χ c2 (3556) [2]. For the first excitation of the P wave state, the χ c2 (2P) state has been confirmed, which was successively discovered in the γ γ → DD process by Belle and Babar Collaborations [3,4]. X (3915) observed in the γ γ → J/ψω [5,6] and B → K J/ψω [7,8] processes is a candidate of χ c0 (2P), and X (3872) first observed in the B → K J/ψπ + π − process by the Belle Collaboration in 2003 [9], was supported to be χ c1 (2P) [10][11][12][13][14].The mass gap of χ c2 (2P) and χ c2 (1P) is about 370 MeV. By adding this mass gap to the mass of χ c2 (2P), we can roughly estimate that the χ c2 (3P) states should be below 4.3 GeV, since the mass gaps become smaller with the radial quantum number increasing. Thus, the masses of the a e-mail: chendy@impcas.ac.cn χ cJ (3P) state should be smaller than 4.3 GeV, which indicates that the charmonium-like states below 4.3 GeV with the positive C parity could be the candidates of the χ cJ (3P) states. Very recently, the LHCb Collaboration has confirmed the existence of the Y (4140) and the J PC quantum numbers were determined to be 1 ++ [15,16], so it could be a candidate of the χ c1 (3P) state.Y (4140) was first observed by the CDF Collaboration in the J/ψφ invariant mass spectrum in the exclusive B + → J/ψφ K + decays with a statistical significance of the signal being 3.8σ [17]. The mass and width of the structure were 4143.0 ± 2.9(stat.) ± 1.2(syst.) MeV and 11.7 +8.3 −5.0 (stat.) ± 3.7(syst.) MeV, respectively [17]. Later, the Belle Collaboration measured the cross sections for the γ γ → J/ψφ and found no evidence of Y (4140) [22], which would rule out the J PC = 0 ++ , 2 ++ assignment for the Y (4140). In 2011, the CDF Collaboration reanalyzed the process B ± → J/ψφ K ± with a larger data sample [18]. The obtained ...

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Section: This Branching Ratio Is Of the Same Order As The B[bsupporting

confidence: 58%

Section: This Branching Ratio Is Of the Same Order As The B[bmentioning

confidence: 99%

Where are $$\chi _{cJ}(3P)$$ χ c J ( 3 P ) ?

Chen

2016

Eur. Phys. J. C

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“…Here, we adopt the quark pair creation (QPC) model (also named 3 P 0 model since the J PC quantum numbers of the quark pair created from the vacuum are 0 þþ ) to estimate the open charm decays of charmonia. The QPC model was first proposed by Micu [34][35][36][37] and then widely used to estimate the Okubo-Zweig-Iizuka allowed strong decay processes [29,[38][39][40][41][42][43][44][45]. In the QPC model, the related Smatrix of A → BC process reads,…”

Section: Introductionmentioning

confidence: 99%

D -wave charmonia

Chen

Pang

et al. 2019

Phys. Rev. D

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Inspired by the recent observations of the vector charmoniumlike states at BES III Collaboration and ψð3842Þ at LHCb Collaboration, we comb the D wave charmonium state in the present work. We first evaluate the possibility of Yð4320Þ as ψð3 3 D 1 Þ by investigating its open charm decays in the quark-pair creation model and we find the width of Yð4320Þ can be reproduced in a reasonable parameter range. Moreover, we take ψð3770Þ, ψð4160Þ, and Yð4320Þ as the scale of 1D, 2D, and 3D charmonia to estimate the open charm decays of other D wave charmonia. The total and partial widths of D wave charmonium states have been predicted, which could be tested by further measurements at LHCb and Belle II Collaborations.

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“…As indicated in Refs. [29][30][31][32], these two states could be good candidates of D-wave charmed-strange mesons 1 3 D 1 and 1 3 D 3 , respectively. To data, the observed heaviest charmed strange meson is D s J (3040), which was discovered in D * K invariant mass spectrum of B decay process by BaBar Collaboration [33], which can be assigned as 2P 1 state as indicated in Refs.…”

Section: Introductionmentioning

confidence: 99%

Electric transitions of the charmed-strange mesons in a relativistic quark model

et al. 2020

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In the present work, we adopt a relativistic constituent quark model to depict the charmed strange meson spectroscopy, in which D s0 (2317) and D s1 (2460) are considered as the 1 3 P 0 and 1P 1 charmed strange mesons, respectively. By using the wave function obtained from the relativistic quark model, we further investigate the electric transitions between charmed strange mesons. We find the long wave length approximation is reasonable for the charmed strange meson radiative decay by comparing the results with different approximations. The estimated partial widths are all safely under the upper limits of the experimental data. Moreover, we find the branching ratio of D s1 (2536) → D * s γ /D s γ are large enough to be detected, which could be searched by further experiments in Belle II and LHCb.

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$$D_{s1}^(2860)$$ D s 1 ∗ ( 2860 ) and $$D_{s3}^(2860)$$ D s 3 ∗ ( 2860 ) : candidates for $$1D$$ 1 D charmed-strange mesons

Cited by 25 publications

References 45 publications

Where are $$\chi _{cJ}(3P)$$ χ c J ( 3 P ) ?

Where are $$\chi _{cJ}(3P)$$ χ c J ( 3 P ) ?

D -wave charmonia

Electric transitions of the charmed-strange mesons in a relativistic quark model

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