Investigations of charmless decays of 
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 via intermediate meson loops

Wang, Yan; Wu, Qi; Li, Gang; Qin, Wen-Hua; Liu, Xiao-Hai; An, Chun-Sheng; Xie, Ju-Jun

doi:10.1103/physrevd.106.074015

Cited by 13 publications

(3 citation statements)

References 68 publications

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“…This result is in agreement with the X(3872) loosely bound molecular nature and with Ref. [9], which estimates a B ∼ [1 -10] %.…”

Section: X(3872) To Light Hadronssupporting

confidence: 92%

Spectroscopy at BESIII: A Selected XYZ Review

Scodeggio

2024

Proceedings of Workshop Italiano Sulla Fisica ad Alta Intensità — PoS(WIFAI2023)

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Since 2003, a new group of exotic states has been identified, commonly known as XY Z states. These exotic states are incompatible with the quark-antiquark model and, therefore, are potential candidates for tetraquarks, mesonic molecules, and hybrids (e.g., gluon-quark states). Since the BESIII experiment started colliding e + e − beams in the energy range between 2.0 and 4.9 GeV, it has been a significant contributor to deepening our knowledge of this new family of states without a clear theoretical interpretation. Some of the most recent and noteworthy results from the BESIII collaboration, along with possible interpretations, are presented.

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“…This result is in agreement with the X(3872) loosely bound molecular nature and with Ref. [9], which estimates a B ∼ [1 -10] %.…”

Section: X(3872) To Light Hadronssupporting

confidence: 92%

Spectroscopy at BESIII: A Selected XYZ Review

Scodeggio

2024

Proceedings of Workshop Italiano Sulla Fisica ad Alta Intensità — PoS(WIFAI2023)

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“…[52][53][54] In Ref. [55], based on the molecular nature of 𝑋(3872), its charmless decays via intermediate meson loops were studied.…”

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confidence: 99%

Molecular Nature of X(3872) in B ⁰ → K ⁰ X(3872) and B ⁺ K ⁺ X(3872) Decays

Wang¹,

Geng²,

Wang³

et al. 2023

Chinese Phys. Lett.

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We investigate the decays of $B^0 \to K^0 X(3872)$ and $B^+ \to K^+ X(3872)$ based on the picture where the $X(3872)$ resonance is strongly coupled to the $D\bar{D}^* + c.c.$ channel. In addition to the decay mechanism where the $X(3872)$ resonance is formed from the $c\bar{c}$ pair hadronization with the short-distance interaction, we have also considered the $D\bar{D}^*$ rescattering diagrams in the long-distance scale, where $D$ and $\bar{D}^*$ are formed from $c$ and $\bar{c}$ separately. Because of the difference of the mass thresholds of charged and neutral $D\bar{D}^*$ channels, and the rather narrow width of the $X(3872)$ resonance, at the $X(3872)$ mass, the loop functions of $D^0\bar{D}^{*0}$ and $D^+\bar{D}^{*-}$ are much different. Taking this difference into account, the ratio of $\mathcal{B}[B^0\to K^0X(3872)]/\mathcal{B}[B^+ \to K^+ X(3872)] \simeq 0.5$ can be naturally obtained. Based on this result, we also evaluate the decay widths of $B_s^0 \to \eta(\eta') X(3872)$. It is expected that future experimental measurements of these decays can be used to elucidate the nature of the $X(3872)$ resonance.

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“…In Refs. [58,59], we have investigated the charmless decays of charmoniunlike states Z c (3900)/Z c (4020) and X(3872) by considering the contributions of intermediate charmed meson loops, and predicted accessible decay rates. In this work, we investigate the light hadron decay modes of Z (′) b → VP via the intermediate bottomed meson loops using an effective Lagrangian approach.…”

Section: Introductionmentioning

confidence: 99%

Investigations on the light hadron decays of $Z_b(10610)$ and $Z_b(10650)$

Wu¹,

Zheng²,

Liu³

et al. 2022

Preprint

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The light hadron decay processes of Z b (10610)/Z b (10650) provide us a way to study their nature and decay mechanism. In this work, we evaluate the branching ratios of Z b (10610)/Z b (10650) → V P (V and P stand for light vector and pseudoscalar mesons, respectively) using an effective Lagrangian approach, in which the contributions of intermediate bottomed meson triangle loops are considered. In our calculations, the Z b (10610) and Z b (10650) are regarded as B B * + c.c. and B * B * molecular states, respectively. The predicted branching ratios of Z b (10610) → V P are about in the order of 10 −2 , while the branching ratios of Z b (10650) → V P are in the order of 10 −3 . Furthermore, the dependence of these ratios between different decay modes of Z b (10610)/Z b (10650) on the mixing η − η ′ angle θ P is investigated, which may be a good quantity for the experiments. It is hoped that the calculations here could be tested by future experiments.

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Investigations of charmless decays of X(3872) via intermediate meson loops

Cited by 13 publications

References 68 publications

Spectroscopy at BESIII: A Selected XYZ Review

Spectroscopy at BESIII: A Selected XYZ Review

Molecular Nature of X(3872) in B ⁰ → K ⁰ X(3872) and B ⁺ K ⁺ X(3872) Decays

Investigations on the light hadron decays of $Z_b(10610)$ and $Z_b(10650)$

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Investigations of charmless decays of X(3872) via intermediate meson loops

Cited by 13 publications

References 68 publications

Spectroscopy at BESIII: A Selected XYZ Review

Spectroscopy at BESIII: A Selected XYZ Review

Molecular Nature of X(3872) in B 0 → K 0 X(3872) and B + K + X(3872) Decays

Investigations on the light hadron decays of $Z_b(10610)$ and $Z_b(10650)$

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Molecular Nature of X(3872) in B ⁰ → K ⁰ X(3872) and B ⁺ K ⁺ X(3872) Decays