Observation of a 
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 Resonance Consistent with a Strange Pentaquark Candidate in 
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Aaij, R.; Abdelmotteleb, Ahmed Sameh Wagih; Beteta, C. Abellán; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Afsharnia, H.; Agapopoulou, C.; Aidala, C.; Ajaltouni, Z.; Akar, S.; Akiba, K. Carvalho; Albrecht, J.; Alessio, F.; Alexander, M.; Albero, A. Alfonso; Aliouche, Z.; Cartelle, P. Alvarez; Amalric, R; Amato, S.; Amey, Jake Lewis; Amhis, Y.; An, L.; Anderlini, L.; Andersson, M.; Andreianov, A.; Andreotti, M.; Andreou, D.; Ao, D.; Archilli, F.; Artamonov, A.; Artuso, M.; Aslanides, E.; Atzeni, M.; Audurier, B.; Bachmann, S.; Bachmayer, M.; Back, J. J.; Bailly-reyre, A.; Rodríguez, P. Baladrón; Balagura, V.; Baldini, W.; Leite, J. Baptista; Barbetti, Matteo; Barlow, R. J.; Barsuk, S.; Barter, W.; Bartolini, M.; Baryshnikov, F.; Basels, Jan-Marc; Bassi, G.; Batsukh, B.; Battig, A.; Bay, A.; Beck, A.; Becker, M.; Bedeschi, F.; Bediaga, I.; Beiter, A.; Belavin, V.; Belin, S.; Bellée, V.; Belous, K.; Belov, Ilia; Belyaev, I.; Benane, G.; Bencivenni, G.; Ben-Haim, E.; Berezhnoy, A.; Bernet, R.; Andres, S. Bernet; Berninghoff, D.; Bernstein, H. C.; Bertella, C.; Bertolin, A.; Betancourt, C.; Betti, F.; Bezshyiko, Ia.; Bhasin, S.; Bhom, J.; Bian, L.; Bieker, M. S.; Biesuz, N. V.; Bifani, S.; Billoir, P.; Biolchini, Alice; Birch, Matthew; Bishop, F. C. R.; Bitadze, A.; Bizzeti, A.; Blago, M. P.; Blake, T.; Blanc, F.; Blank, J. E.; Blusk, S.; Bobulska, D.; Boelhauve, J. A.; García, O. Boente; Boettcher, T.; Boldyrev, A. S.; Bolognani, C. S.; Bolzonella, R.; Bondar, N.; Borgato, F.; Borghi, S.; Borsato, M.; Borsuk, J. T.; Bouchiba, Sonia Amina; Bowcock, T. J. V.; Boyer, A.; Bozzi, C.; Bradley, Matthew John; Braun, S.; Rodríguez, A. Brea; Brodzicka, J.; Gonzalo, A. Brossa; Brown, J.; Brundu, D.; Buonaura, A.; Buonincontri, Laura; Burke, Aodhan Tomas; Burr, C.; Bursche, A.; Butkevich, A.; Butter, J. S.; Buytaert, J.; Byczynski, W.; Cadeddu, S.; Cai, H.; Calabrese, R.; Calefice, Lukas; Cali, S.; Calladine, R.; Calvi, M.; Gomez, M. Calvo; Campana, P.; Perez, D. H. Campora; Campoverde, A.; Capelli, S.; Capriotti, L.; Carbone, A.; Carboni, G.; Cardinale, R.; Cardini, A.; Carniti, P.; Carus, Leon David; Vidal, A. Casais; Caspary, Rowina; Casse, G.; Cattaneo, M.; Cavallero, G.; Cavallini, V.; Celani, S.; Cerasoli, J.; Červenkov, D.; Chadwick, Abbie Jane; Chapman, M. G.; Charles, M.; Charpentier, Ph.; Barajas, C. A. Chavez; Chefdeville, M.; Chen, C.; Chen, S.; Chernov, A.; Chernyshenko, S.; Chobanova, V.; Cholak, S.; Chrząszcz, M.; Chubykin, A.; Chulikov, V.; Ciambrone, P.; Cicala, M. F.; Vidal, X. Cid; Ciezarek, G.; Ciullo, G.; Clarke, P. E. L.; Clemencic, M.; Cliff, H. V.; Closier, J.; Cobbledick, J. 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doi:10.1103/physrevlett.131.031901

“…The success of the hadronic molecule picture for the states prompted the extension of systems to their SU(3) flavor partners with hidden-charm (double-)strangeness channels [39−48]. Recently, two states were reported by the LHCb collaboration, [49] and [50], which are perfect candidates of the and molecules, respectively (see, e.g., Refs. [17, 51−64]).…”

Section: Introductionmentioning

confidence: 99%

Molecular states in systems*

Yalikun,

Dong 董,

Zou 邹

2023

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The possible hadronic molecules in systems with , and are investigated with interactions described by light meson exchanges. By varying the cutoff in a phenomenologically reasonable range of GeV, we find ten near-threshold (bound or virtual) states in the single-channel case. After introducing the coupled-channel dynamics of - - - - - systems, these states, except those below the lowest channels in each sector, move into the complex energy plane and become resonances in the mass range GeV. Their spin-parities and nearby thresholds are , , , , , , , , , and . The impact of the -term in the one-boson-exchange model on these states is presented. Setting GeV as an illustrative value, it is found that is a stable bound state (becoming unstable if the coupling to lower channels is turned on), and are physical resonances in cases where the -term is included or excluded, and the other seven states are physical resonances or "virtual-state-like" poles near thresholds, depending on whether the -term is included. In addition, the partial decay widths of the physical resonances are provided. These double-charm hidden-strangeness pentaquark states, as the partners of the experimentally observed and states, can be searched for in the final states in the future.

show abstract

“…Mass and width of this hidden-charm pentaquark candidate with strange quark content are 4458.8±2.9 +4.7 −1.1 MeV and 17.3±6.5 +8.0 −5.7 MeV, respectively. In 2022, another strange pentaquark candidate, P cs (4338), was observed with high significance in B − → J/ψΛp decays [4]. Its experimental mass and width are 4338.2±0.7±0.4 MeV and 7.0±1.2±1.…”

Section: Introductionmentioning

confidence: 99%

Hidden-charm tetraquarks with strangeness in the chiral quark model

Yang

¹

,

Ping

²

,

Segovia

³

2021

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The LHCb collaboration has recently announced the discovery of two hidden-charm pentaquark states with also strange quark content, Pcs(4338) and Pcs(4459); its analysis points towards having both hadrons isospin equal to zero and spin-parity quantum numbers 1 2 − and 3 2 − , respectively. We perform herein a systematical investigation of the qqscc (q = u, d) system by means of a chiral quark model, along with a highly accurate computational method, the Gaussian expansion approach combined with the complex-scaling technique. Baryon-meson configurations in both singletand hidden-color channels are considered. The Pcs(4338) and Pcs(4459) signals can be well identified as molecular bound states with dominant components ΛJ/ψ (60%) and ΞcD (23%) for the lowest-energy case and ΞcD * (72%) for the highest-energy one. Besides, it seems that some narrow resonances can be also found in each allowed I(J P )-channel in the energy region of 4.6 − 5.5 GeV, except for the 1( 1 2 − ) where a shallow bound state with dominant Ξ * c D * structure is obtained at 4673 MeV with binding energy EB = −3 MeV. These exotic states are expected to be confirmed in future high energy experiments.

show abstract

“…In 2020, through the LHCb collaboration, evidence of a new structure was observed in the mass spectrum with a significance of in the decays [3]. In 2021, the LHCb collaboration observed evidence of a new structure in the and systems in the decays with a significance of [4]. In 2022, the LHCb collaboration observed evidence of a new structure in the mass spectrum in the decays with Breit-Wigner masses and widths of and , respectively, and the preferred spin-parity [5].…”

mentioning

confidence: 99%

Strong decays of the P _c(4312) and its isospin cousin via the QCD sum rules*

Wang,

Wang 王

2024

Chinese Phys. C

1

0

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In the present work, considering the conservation of isospin in the strong decays, we investigate the strong decays of the pentaquark molecule candidate $P_c(4312)$ and its possible higher isospin cousin $P_c(4330)$ in the framework of the QCD sum rules. What's more, the pole residue of the $\Delta$ baryon with isospin eigenstate $|II_3\rangle=|\frac{3}{2}\frac{1}{2}\rangle$ is obtained. If the possible pentaquark molecule candidate $P_c(4330)$ could be testified in the future experiment, it would shed light on interpretations of the $P_c$ states. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Observation of a J/ψΛ Resonance Consistent with a Strange Pentaquark Candidate in B−→J/ψΛ

Cited by 51 publications

References 36 publications

Molecular states in systems*

Molecular states in systems*

Hidden-charm tetraquarks with strangeness in the chiral quark model

Strong decays of the P _c(4312) and its isospin cousin via the QCD sum rules*

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Observation of a J/ψΛ Resonance Consistent with a Strange Pentaquark Candidate in B−→J/ψΛ

Cited by 51 publications

References 36 publications

Molecular states in systems*

Molecular states in systems*

Hidden-charm tetraquarks with strangeness in the chiral quark model

Strong decays of the P c(4312) and its isospin cousin via the QCD sum rules*

Contact Info

Product

Resources

About

Strong decays of the P _c(4312) and its isospin cousin via the QCD sum rules*