Role of the newly measured 
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 process to establish 
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Duan, Ming-Xiao; Wang, Jun-Zhang; Li, Yushuai; Liu, Xiang

doi:10.1103/physrevd.104.034035

Cited by 13 publications

(6 citation statements)

References 53 publications

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“…charmonium [8,9]. Very recently, the LHCb Collaboration reported a charmonium state named as X(3960)…”

Section: Introductionmentioning

confidence: 99%

Production rates of $D_{s}^{+}D_{s}^{-}$ and $D\bar{D}$ molecules in $B$ decays

Xie¹,

Liu²,

Geng³

2022

Preprint

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Motivated by the recent discovery of a charmonium X(3960) in B decays by the LHCb Collaboration, the likely existence of two bound/virtual states (denoted by X ss and X q q ) below the D + s D − s and DD mass thresholds has been re-examined recently. In this work, we employ the effective Lagrangian approach to calculate their production rates in B decays utilizing triangle diagrams. Our results show that the production yields of B + → X ss K + and *

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“…charmonium [8,9]. Very recently, the LHCb Collaboration reported a charmonium state named as X(3960)…”

Section: Introductionmentioning

confidence: 99%

Production rates of $D_{s}^{+}D_{s}^{-}$ and $D\bar{D}$ molecules in $B$ decays

Xie¹,

Liu²,

Geng³

2022

Preprint

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“…The Xð3915Þ was discovered by Belle [7] and a spin-parity analysis of this state by BABAR favored the J PC ¼ 0 þþ quantum numbers [8]. The Xð3915Þ is a candidate of the χ c0 ð2PÞ state [24][25][26][27]. In a recent amplitude analysis of the…”

Section: Introductionmentioning

confidence: 99%

Study of γγ→γψ(2S) at Belle

Wang¹,

Gao²,

Zhu³

et al. 2022

Phys. Rev. D

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Using 980 fb −1 of data at and around the ϒðnSÞ (n ¼ 1, 2, 3, 4, 5) resonances collected with the Belle detector at the KEKB asymmetric-energy e þ e − collider, the two-photon process γγ → γψð2SÞ is studied from the threshold to 4.2 GeV for the first time. Two structures are seen in the invariant mass distribution of γψð2SÞ: one at M R 1 ¼ 3922.4 AE 6.5 AE 2.0 MeV=c 2 with a width of Γ R 1 ¼ 22 AE 17 AE 4 MeV, and another at M R 2 ¼ 4014.3 AE 4.0 AE 1.5 MeV=c 2 with a width of Γ R 2 ¼ 4 AE 11 AE 6 MeV; the signals are parametrized with the incoherent sum of two Breit-Wigner functions. The first structure is consistent with the Xð3915Þ or the χ c2 ð3930Þ, and the local statistical significance is determined to be 3.1σ with the systematic uncertainties included. The second matches none of the known charmonium or charmoniumlike states, and its global significance is determined to be 2.8σ including the look-elsewhere effect. The production rates are Γ γγ BðR 1 → γψð2SÞÞ ¼ 9.8 AE 3.6 AE 1.3 eV assuming ðJ PC ; jλjÞ ¼ ð0 þþ ; 0Þ or 2.0 AE 0.7 AE 0.2 eV with ð2 þþ ; 2Þ for the first structure and Γ γγ BðR 2 → γψð2SÞÞ ¼ 6.2 AE 2.2 AE 0.8 eV with ð0 þþ ; 0Þ or 1.2 AE 0.4 AE 0.2 eV with ð2 þþ ; 2Þ for the second. Here, the first errors are statistical and the second systematic, and λ is the helicity.

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“…One can also consult Refs. [21][22][23][24][25][26][27][28][29][30][31][32] for other pertinent studies on parameters of these states.…”

Section: Introductionmentioning

confidence: 99%

Magnetic moment of the $X_1(2900)$ state in the diquark-antidiquark picture

Özdem¹,

Azizi²

2022

Preprint

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Motivated by the discovery of fully open-flavor tetraquark states X0(2900) and X1(2900) by the LHCb Collaboration, the magnetic dipole moment of the X1(2900) state with the quantum numbers J P = 1 − is determined in the diquark-antidiquark model using the light-cone sum rules. The magnetic moments of hadrons encompasses useful knowledge on the distributions of charge and magnetization their inside, which can be used to better understand their geometrical shapes and quark-gluon organizations. The observation of the X0(2900) and X1( 2900) as the first two fully open-flavor multiquark states has opened a new window for investigation of the exotic states. The obtained results in the present study may shed light on the future experimental and theoretical searches on the properties of fully open-flavor multiquark states.

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Role of the newly measured B→KDD¯ process to establish χ

Cited by 13 publications

References 53 publications

Production rates of $D_{s}^{+}D_{s}^{-}$ and $D\bar{D}$ molecules in $B$ decays

Production rates of $D_{s}^{+}D_{s}^{-}$ and $D\bar{D}$ molecules in $B$ decays

Study of γγ→γψ(2S) at Belle

Magnetic moment of the $X_1(2900)$ state in the diquark-antidiquark picture

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