Study of 
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Ablikim, M.; Adlarson, P.; Biernat, J.; Andersson, W. Ikegami; Johansson, T.; Kupść, A.; Li, Cui; Papenbrock, M.; Pettersson, J.; Schönning, K.; Thoren, V.; Wolke, M.; Zou, J. H.

doi:10.1103/physrevd.100.111102

Cited by 16 publications

(6 citation statements)

References 34 publications

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“…The quantum number of Z c (4020) may also be I G J P C = 1 + 1 +− , and it has been observed in the h c π and D * D * channels [61,82]. Evidence for the Z c (3900) → η c ρ decay was reported at √ s = 4.226 GeV with the relative branching ratio [83]:…”

Section: Introductionmentioning

confidence: 99%

Hadronic molecules in B decays

Chen

2021

Preprint

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There are eighteen possibly existing D ( * ) D( * ) , D ( * ) K( * ) , and D ( * ) D ( * )− s hadronic molecular states. We construct their corresponding interpolating currents, and calculate their masses and decay constants using QCD sum rules. Based on these results, we calculate their relative production rates in B and B * decays through the current algebra, and calculate their relative branching ratios through the Fierz rearrangement, as summarized in Table III. Our results support the interpretations of the X(3872), Zc(3900), Zc(4020), and X0(2900) as the molecular states D D * of J

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Section: Introductionmentioning

confidence: 99%

Hadronic molecules in B decays

Chen

2021

Preprint

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“…On the other hand, it is known from BESIII experiments [1,23] that, close to the threshold of the third channel, all three elastic channels show resonant peaks. If we assume that these three peaks correspond to a single resonance structure, constraint equations can be obtained from Eq.…”

Section: Resonance Scenario In Ross-shaw Theorymentioning

confidence: 96%

“…In principle, Ross-Shaw effective range expansion also works for higher partial waves. For example, one simply replaces the kinematic factors k 1=2 by k lþ1=2 for a partial wave with orbital angular momentum l. However, since no higher partial waves are observed in the experiments [22,23,26], we therefore will not work out the explicit formula in the general case. The matrix k is the kinematic matrix which is a diagonal matrix given by…”

Section: The Ross-shaw Effective Range Theorymentioning

confidence: 99%

“…BESIII experiments have investigated several channels and these three channels are found to couple to Z c ð3900Þ strongly, all of which are s-wave two-particle channels, with DD Ã , ρη c and Jψπ in decreasing order of the effective coupling and threshold. In fact, they have not seen an indication of Z c ð3900Þ in other channels, e.g., higher partial wave two-particle channels [22,23]. Therefore, in this paper, we utilize the Ross-Shaw effective range theory [24,25] for the above mentioned three channels and derive the constraint relations among the parameters of Ross-Shaw matrix M in the zero-range approximation, assuming that there is a resonance close to the threshold of the third channel, i.e., that of DD Ã .…”

Section: Introductionmentioning

confidence: 98%

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Towards the understanding of Zc(3900) from lattice QCD

Liu

Zhang

2020

Phys. Rev. D

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Within the framework of three-channel Ross-Shaw effective range theory, we derive the constraints among different parameters of the theory in the case of a narrow resonance close to the threshold of the third channel, which is relevant for the resonancelike structure Z c ð3900Þ. The usage of these constraint relations, together with the multichannel Lüscher formula in lattice QCD calculations are also discussed and the strategies are outlined.

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“…Later on, another charmoniumlike states Z ± c (4020) was observed by the BESIII collaboration in e + e − → π + π − h c [22]. Moreover, these two charged charmoniumlike states have also been observed in the open charm processes [23,24] and η c ρ channel [25].…”

Section: Introductionmentioning

confidence: 99%

Exploration of the hidden charm decays of $Z_{cs}(3985)$

Wu¹,

Chen²

2021

Preprint

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In the present work, we investigate the decays of Z − cs (3985) in the D − s D * 0 + D * − s D 0 molecular frame. By using an effective Lagrangian approach, the branching ratios of Z − cs → J/ψK − and Z − cs → η c K * − are estimated. It is found that the dominating decay mode of Z − cs ( 3985) is open charm channel, while, the branching ratio of the hidden charm decay channels is about 20%. In particular, the branching ratios of Z − cs → J/ψK − and Z − cs → η c K * − are predicted to be of order of 10%. Moreover, our estimation indicates that the fraction of the quasi-two-body cascade decay via Z cs (3985) and the total cross section of e + e − → K + K − J/ψ around 4.68 GeV is 6.8 +10.5 −6.2 %. All the predicted branching ratios in the present work could be tested by further measurements in BESIII and Belle II.

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Study of e+e−→π+π−

Cited by 16 publications

References 34 publications

Hadronic molecules in B decays

Hadronic molecules in B decays

Towards the understanding of Zc(3900) from lattice QCD

Exploration of the hidden charm decays of $Z_{cs}(3985)$

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