Observation of a New Excited Ds+ Meson in B0 → D- D+ K+ π- Decays

被引：23

作者：

Aaij, R. ^{[31
]}

Beteta, C. Abellan ^{[49
]}

Ackernley, T. ^{[59
]}

Adeva, B. ^{[45
]}

Adinolfi, M. ^{[53
]}

Afsharnia, H. ^{[9
]}

Aidala, C. A. ^{[84
]}

Aiola, S. ^{[25
]}

Ajaltouni, Z. ^{[9
]}

Akar, S. ^{[64
]}

Albrecht, J. ^{[14
]}

Alessio, F. ^{[47
]}

Alexander, M. ^{[58
]}

Albero, A. Alfonso ^{[44
]}

Aliouche, Z. ^{[61
]}

Alkhazov, G. ^{[37
]}

Cartelle, P. Alvarez ^{[47
]}

Amato, S. ^{[2
]}

Amhis, Y. ^{[11
]}

An, L. ^{[21
]}

Anderlini, L. ^{[21
]}

Andreianov, A. ^{[37
]}

Andreotti, M. ^{[20
]}

Archilli, F. ^{[16
]}

Artamonov, A. ^{[43
]}

Artuso, M. ^{[67
]}

Arzymatov, K. ^{[41
]}

Aslanides, E. ^{[10
]}

Atzeni, M. ^{[49
]}

Audurier, B. ^{[11
]}

Bachmann, S. ^{[16
]}

Bachmayer, M. ^{[48
]}

Back, J. J. ^{[55
]}

Baker, S. ^{[60
]}

Rodriguez, P. Baladron ^{[45
]}

Balagura, V ^{[11
]}

Baldini, W. ^{[20
]}

Leite, J. Baptista ^{[1
]}

Barlow, R. J. ^{[61
]}

Barsuk, S. ^{[11
]}

Barter, W. ^{[60
]}

Bartolini, M. ^{[23
,85
]}

Baryshnikov, F. ^{[80
]}

Basels, J. M. ^{[13
]}

Bassi, G. ^{[28
]}

Batsukh, B. ^{[67
]}

Battig, A. ^{[14
]}

Bay, A. ^{[48
]}

Becker, M. ^{[14
]}

Bedeschi, F. ^{[28
]}

机构：

[1] Ctr Brasileiro Pesquisas Sicas CBPF, Rio De Janeiro, Brazil

[2] Univ Fed Rio Janeiro UFRJ, Rio De Janeiro, Brazil

[3] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China

[4] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China

[5] Univ Chinese Acad Sci, Beijing, Peoples R China

[6] Inst High Energy Phys IHEP, Beijing, Peoples R China

[7] Cent China Normal Univ, Inst Particle Phys, Wuhan, Hubei, Peoples R China

[8] Univ Grenoble Alpes, Univ Savoie Mt Blanc, CNRS, IN2P3 LAPP, Annecy, France

[9] Univ Clermont Auvergne, LPC, CNRS, IN2P3, Clermont Ferrand, France

[10] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France

[11] Univ Paris Saclay, IJCLab, CNRS, IN2P3, Orsay, France

[12] Sorbonne Univ, Paris Diderot Sorbonne Paris Cite, LPNHE, CNRS IN2P3, Paris, France

[13] Rhein Westfal TH Aachen, Phys Inst, Aachen, Germany

[14] Tech Univ Dortmund, Fak Phys, Dortmund, Germany

[15] Max Planck Inst Kernphys MPIK, Heidelberg, Germany

[16] Heidelberg Univ, Phys Inst, Heidelberg, Germany

[17] Univ Coll Dublin, Sch Phys, Dublin, Ireland

[18] INFN Sez Bari, Bari, Italy

[19] INFN Sez Bologna, Bologna, Italy

[20] INFN Sez Ferrara, Ferrara, Italy

[21] Sez Firenze, Ist Nazl Fis Nucl, Florence, Italy

[22] Lab Nazl Frascati, Ist Nazl Fis Nucl, Frascati, Italy

[23] Sez Genova, Ist Nazl Fis Nucl, Genoa, Italy

[24] Sez Milano Bicocca, Ist Nazl Fis Nucl, Milan, Italy

[25] Sez Milano, Ist Nazl Fis Nucl, Milan, Italy

[26] Sez Cagliari, Ist Nazl Fis Nucl, Monserrato, Italy

[27] Univ Padua, Univ & INFN, Padua, Italy

[28] Sez Pisa, Ist Nazl Fis Nucl, Pisa, Italy

[29] Sez Roma Tor Vergata, Ist Nazl Fis Nucl, Rome, Italy

[30] Sez Roma Sapienza, Ist Nazl Fis Nucl, Rome, Italy

[31] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands

[32] Vrije Univ Amsterdam, Amsterdam, Netherlands

[33] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland

[34] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland

[35] Natl Ctr Nucl Res NCBJ, Warsaw, Poland

[36] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania

[37] NRC Kurchatov Inst PNPI NRC KI, Petersburg Nucl Phys Inst, Gatchina, Russia

[38] NRC Kurchatov Inst ITEP NRC KI, Inst Theoret & Expt Phys, Moscow, Russia

[39] Moscow State Univ SINP MSU, Inst Nucl Phys, Moscow, Russia

[40] Russian Acad Sci INR RAS, Inst Nucl Res, Moscow, Russia

[41] Yandex Sch Data Anal, Moscow, Russia

[42] Budker Inst Nucl Phys SB RAS, Novosibirsk, Russia

[43] NRC Kurchatov Inst IHEP NRC, Inst High Energy Phys, Protvino, Russia

[44] Univ Barcelona, ICCUB, Barcelona, Spain

[45] Univ Santiago Compostela, Inst Galego Fis Altas Enerx IGFAE, Santiago De Compostela, Spain

[46] Ctr Mixto Univ Valencia, Inst Fis Corpuscular, CSIC, Valencia, Spain

[47] European Org Nucl Res CERN, Geneva, Switzerland

[48] Ecole Polytech Rale Lausanne EPFL, Inst Phys, Lausanne, Switzerland

[49] Univ Zurich, Phys Inst, Zurich, Switzerland

[50] NSC Kharkiv Inst Phys & Technol NSC KIPT, Kharkiv, Ukraine

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 126卷 / 12期

关键词：

TOOL;

D O I：

10.1103/PhysRevLett.126.122002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using pp collision data corresponding to an integrated luminosity of 5.4 fb(-1) collected with the LHCb detector at a center-of-mass energy of 13 TeV, the B-0 -> D- D+ K+ pi(-) decay is studied. A new excited D-s(+) meson is observed decaying into the D+K+pi(-) final state with large statistical significance. The pole mass and width, and the spin parity of the new state are measured with an amplitude analysis to be m(R) = 2591 +/- 6 +/- 7 MeV, Gamma(R) = 89 +/- 16 +/- 12 MeV, and J(P) = 0(-), where the first uncertainty is statistical and the second systematic. Fit fractions for all components in the amplitude analysis are also reported. The new resonance, denoted as D-s0(2590)(+), is a strong candidate to be the D-s(2(1)S(0))(+) state, the radial excitation of the pseudoscalar ground-state D-s(+) meson.

引用

页数：11

共 50 条

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