New $X_{0,1}(2900)$-like exotic states in $b$-baryon decays

Hsiao, Yu-Kuo; Yu, Yao

doi:10.48550/arxiv.2104.01296

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…Productions of the X 0,1 (2900) states in the Λ b and Ξ b decays were studied in Ref. [444], where the authors also investigated their partners X 0,1 with the quark content us dc. They estimated their branching fractions…”

Section: Open Heavy Flavor Multiquark Statesmentioning

confidence: 99%

An updated review of the new hadron states

Chen¹,

Chen²,

Liu³

et al. 2022

Preprint

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The past decades witnessed the golden era of hadron physics. Many excited open heavy flavor mesons and baryons have been observed since 2017. We shall provide an updated review of the recent experimental and theoretical progresses in this active field. Besides the conventional heavy hadrons, we shall also review the recently observed open heavy flavor tetraquark states X(2900) and T + cc (3875) as well as the hidden heavy flavor multiquark states X(6900), P cs (4459) 0 , Z cs (3985) − , Z cs (4000) + , and Z cs (4220) + . We will also cover the recent progresses on the glueballs and light hybrid mesons, which are the direct manifestations of the non-Abelian SU (3) gauge interaction of the Quantum Chromodynamics in the low-energy region.

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Section: Open Heavy Flavor Multiquark Statesmentioning

confidence: 99%

An updated review of the new hadron states

Chen¹,

Chen²,

Liu³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…One can also consult Refs. [20][21][22][23][24][25][26][27][28][29][30][31] for other pertinent works.…”

Section: Introductionmentioning

confidence: 99%

How to understand the $X(2900)$?

Wang,

Zhu

2021

Preprint

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In this work, the Sand P -wave D * K * interactions are studied in a coupled-channel formalism to understand the recently observed X0(2900) and X1(2900) at LHCb. The experimental event distributions can be well described, and two states with I(J P ) = 0(0 + ) and 0(1 − ) are yielded in an unified framework with the same set of parameters. Their masses and widths are determined to be [m, Γ] −10.7 , 52.5 +9.5 −1.3 ] MeV from the pole analyses, respectively. The masses of the 0 + and 1 − states are consistent with the experimental data, but the width of the 0 + state is larger than that of the 1 − one. The X1(2900) can be interpreted as the P -wave excitation of the ground-state X0(2900) in the hadronic molecular picture. The Sand P -wave multiplets in the D * K * system have many members, so the present peak in the D − K + invariant mass distributions might contain multi subpeaks. In order to probe the fine structures behind the single whole peak now, more refined measurements in the B + → D + D − K + decay channel are necessary.

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New $X_{0,1}(2900)$-like exotic states in $b$-baryon decays

Cited by 2 publications

References 24 publications

An updated review of the new hadron states

An updated review of the new hadron states

How to understand the $X(2900)$?

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