Standard

Observation of a Near-Threshold Structure in the K+ Recoil-Mass Spectra in e+e- →k+ (Ds- D∗0+ Ds∗- D0). / The BESIII Collaboration.

в: Physical Review Letters, Том 126, № 10, 102001, 12.03.2021, стр. 102001.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

The BESIII Collaboration 2021, 'Observation of a Near-Threshold Structure in the K+ Recoil-Mass Spectra in e+e- →k+ (Ds- D∗0+ Ds∗- D0)', Physical Review Letters, Том. 126, № 10, 102001, стр. 102001. https://doi.org/10.1103/PhysRevLett.126.102001

APA

The BESIII Collaboration (2021). Observation of a Near-Threshold Structure in the K+ Recoil-Mass Spectra in e+e- →k+ (Ds- D∗0+ Ds∗- D0). Physical Review Letters, 126(10), 102001. [102001]. https://doi.org/10.1103/PhysRevLett.126.102001

Vancouver

The BESIII Collaboration. Observation of a Near-Threshold Structure in the K+ Recoil-Mass Spectra in e+e- →k+ (Ds- D∗0+ Ds∗- D0). Physical Review Letters. 2021 март 12;126(10):102001. 102001. doi: 10.1103/PhysRevLett.126.102001

Author

The BESIII Collaboration. / Observation of a Near-Threshold Structure in the K+ Recoil-Mass Spectra in e+e- →k+ (Ds- D∗0+ Ds∗- D0). в: Physical Review Letters. 2021 ; Том 126, № 10. стр. 102001.

BibTeX

@article{698acfaeebaf414cbf2ac7e3e086366e,
title = "Observation of a Near-Threshold Structure in the K+ Recoil-Mass Spectra in e+e- →k+ (Ds- D∗0+ Ds∗- D0)",
abstract = "We report a study of the processes of e+e-→K+Ds-D∗0 and K+Ds∗-D0 based on e+e- annihilation samples collected with the BESIII detector operating at BEPCII at five center-of-mass energies ranging from 4.628 to 4.698 GeV with a total integrated luminosity of 3.7 fb-1. An excess of events over the known contributions of the conventional charmed mesons is observed near the Ds-D∗0 and Ds∗-D0 mass thresholds in the K+ recoil-mass spectrum for events collected at s=4.681 GeV. The structure matches a mass-dependent-width Breit-Wigner line shape, whose pole mass and width are determined as (3982.5-2.6+1.8±2.1) MeV/c2 and (12.8-4.4+5.3±3.0) MeV, respectively. The first uncertainties are statistical and the second are systematic. The significance of the resonance hypothesis is estimated to be 5.3 σ over the contributions only from the conventional charmed mesons. This is the first candidate for a charged hidden-charm tetraquark with strangeness, decaying into Ds-D∗0 and Ds∗-D0. However, the properties of the excess need further exploration with more statistics.",
author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and P. Adlarson and S. Ahmed and M. Albrecht and R. Aliberti and A. Amoroso and Q. An and Anita and Bai, {X. H.} and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and I. Balossino and Y. Ban and K. Begzsuren and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J. Biernat and J. Bloms and A. Bortone and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and A. Calcaterra and Cao, {G. F.} and N. Cao and Cetin, {S. A.} and Chang, {J. F.} and Chang, {W. L.} and G. Chelkov and Chen, {D. Y.} and G. Chen and Chen, {H. S.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and Chen, {Z. J.} and Cheng, {W. S.} and G. Cibinetto and F. Cossio and Cui, {X. F.} and Dai, {H. L.} and Dai, {X. C.} and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",
note = "Funding Information: The BESIII Collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work was supported in part by National Key Basic Research Program of China under Contract No. 2015CB856700; National Key Research and Development Program of China under Contracts No. 2020YFA0406300 and No. 2020YFA0406400; National Natural Science Foundation of China (NSFC) under Contracts No. 11625523, No. 11635010, No. 11735014, No. 11805086, No. 11822506, No. 11835012, No. 11935015, No. 11935016, No. 11935018, and No. 11961141012; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS PIFI program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1732263 and No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; the Fundamental Research Funds for the Central Universities; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contract No. 443159800, Collaborative Research Center CRC 1044, FOR 2359, GRK 2149; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts No. DH140054 and No. DH160214; The Swedish Research Council; and U.S. Department of Energy under Contracts No. DE-FG02-05ER41374 and No. DE-SC-0012069. Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",
year = "2021",
month = mar,
day = "12",
doi = "10.1103/PhysRevLett.126.102001",
language = "English",
volume = "126",
pages = "102001",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "10",

}

RIS

TY - JOUR

T1 - Observation of a Near-Threshold Structure in the K+ Recoil-Mass Spectra in e+e- →k+ (Ds- D∗0+ Ds∗- D0)

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Aliberti, R.

AU - Amoroso, A.

AU - An, Q.

AU - Anita,

AU - Bai, X. H.

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Balossino, I.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Biernat, J.

AU - Bloms, J.

AU - Bortone, A.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cao, N.

AU - Cetin, S. A.

AU - Chang, J. F.

AU - Chang, W. L.

AU - Chelkov, G.

AU - Chen, D. Y.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Chen, Z. J.

AU - Cheng, W. S.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Cui, X. F.

AU - Dai, H. L.

AU - Dai, X. C.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

N1 - Funding Information: The BESIII Collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work was supported in part by National Key Basic Research Program of China under Contract No. 2015CB856700; National Key Research and Development Program of China under Contracts No. 2020YFA0406300 and No. 2020YFA0406400; National Natural Science Foundation of China (NSFC) under Contracts No. 11625523, No. 11635010, No. 11735014, No. 11805086, No. 11822506, No. 11835012, No. 11935015, No. 11935016, No. 11935018, and No. 11961141012; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS PIFI program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1732263 and No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; the Fundamental Research Funds for the Central Universities; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contract No. 443159800, Collaborative Research Center CRC 1044, FOR 2359, GRK 2149; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; Olle Engkvist Foundation under Contract No. 200-0605; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts No. DH140054 and No. DH160214; The Swedish Research Council; and U.S. Department of Energy under Contracts No. DE-FG02-05ER41374 and No. DE-SC-0012069. Publisher Copyright: © 2021 authors. Published by the American Physical Society. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/3/12

Y1 - 2021/3/12

N2 - We report a study of the processes of e+e-→K+Ds-D∗0 and K+Ds∗-D0 based on e+e- annihilation samples collected with the BESIII detector operating at BEPCII at five center-of-mass energies ranging from 4.628 to 4.698 GeV with a total integrated luminosity of 3.7 fb-1. An excess of events over the known contributions of the conventional charmed mesons is observed near the Ds-D∗0 and Ds∗-D0 mass thresholds in the K+ recoil-mass spectrum for events collected at s=4.681 GeV. The structure matches a mass-dependent-width Breit-Wigner line shape, whose pole mass and width are determined as (3982.5-2.6+1.8±2.1) MeV/c2 and (12.8-4.4+5.3±3.0) MeV, respectively. The first uncertainties are statistical and the second are systematic. The significance of the resonance hypothesis is estimated to be 5.3 σ over the contributions only from the conventional charmed mesons. This is the first candidate for a charged hidden-charm tetraquark with strangeness, decaying into Ds-D∗0 and Ds∗-D0. However, the properties of the excess need further exploration with more statistics.

AB - We report a study of the processes of e+e-→K+Ds-D∗0 and K+Ds∗-D0 based on e+e- annihilation samples collected with the BESIII detector operating at BEPCII at five center-of-mass energies ranging from 4.628 to 4.698 GeV with a total integrated luminosity of 3.7 fb-1. An excess of events over the known contributions of the conventional charmed mesons is observed near the Ds-D∗0 and Ds∗-D0 mass thresholds in the K+ recoil-mass spectrum for events collected at s=4.681 GeV. The structure matches a mass-dependent-width Breit-Wigner line shape, whose pole mass and width are determined as (3982.5-2.6+1.8±2.1) MeV/c2 and (12.8-4.4+5.3±3.0) MeV, respectively. The first uncertainties are statistical and the second are systematic. The significance of the resonance hypothesis is estimated to be 5.3 σ over the contributions only from the conventional charmed mesons. This is the first candidate for a charged hidden-charm tetraquark with strangeness, decaying into Ds-D∗0 and Ds∗-D0. However, the properties of the excess need further exploration with more statistics.

UR - http://www.scopus.com/inward/record.url?scp=85102950604&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.126.102001

DO - 10.1103/PhysRevLett.126.102001

M3 - Article

C2 - 33784133

AN - SCOPUS:85102950604

VL - 126

SP - 102001

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 10

M1 - 102001

ER -

ID: 28141159