Study of Bs0 → J/ψπ+π-K+K- decays

被引：0

作者：

Aaij, R. ^{[32
]}

Beteta, C. Abellan ^{[50
]}

Ackernley, T. ^{[60
]}

Adeva, B. ^{[46
]}

Adinolfi, M. ^{[54
]}

Afsharnia, H. ^{[9
]}

Aidala, C. A. ^{[86
]}

Aiola, S. ^{[25
]}

Ajaltouni, Z. ^{[9
]}

Akar, S. ^{[65
]}

Albrecht, J. ^{[14
]}

Alessio, F. ^{[48
]}

Alexander, M. ^{[59
]}

Alfonso Albero, A. ^{[45
]}

Aliouche, Z. ^{[62
]}

Alkhazov, G. ^{[38
]}

Cartelle, P. Alvarez ^{[48
]}

Amato, S. ^{[2
]}

Amhis, Y. ^{[11
]}

An, L. ^{[21
]}

Anderlini, L. ^{[21
]}

Andreianov, A. ^{[38
]}

Andreotti, M. ^{[20
]}

Archilli, F. ^{[16
]}

Artamonov, A. ^{[44
]}

Artuso, M. ^{[68
]}

Arzymatov, K. ^{[42
]}

Aslanides, E. ^{[10
]}

Atzeni, M. ^{[50
]}

Audurier, B. ^{[11
]}

Bachmann, S. ^{[16
]}

Bachmayer, M. ^{[49
]}

Back, J. J. ^{[56
]}

Baker, S. ^{[61
]}

Baladron Rodriguez, P. ^{[46
]}

Balagura, V ^{[11
]}

Baldini, W. ^{[20
]}

Leite, J. Baptista ^{[1
]}

Barlow, R. J. ^{[62
]}

Barsuk, S. ^{[11
]}

Barter, W. ^{[61
]}

Bartolini, M. ^{[23
,95
]}

Baryshnikov, F. ^{[81
]}

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

Bassi, G. ^{[29
]}

Batsukh, B. ^{[68
]}

Battig, A. ^{[14
]}

Bay, A. ^{[49
]}

Becker, M. ^{[14
]}

Bedeschi, F. ^{[29
]}

机构：

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

[2] Univ Fed Rio de 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 Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, IN2P3,LAPP, Annecy, France

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

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

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

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

[13] Rhein Westfal TH Aachen, Phys Inst 1, 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] Ist Nazl Fis Nucl, Sez Bari, Bari, Italy

[19] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy

[20] Ist Nazl Fis Nucl, Sez Ferrara, Ferrara, Italy

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

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

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

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

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

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

[27] Univ Padua, Padua, Italy

[28] Ist Nazl Fis Nucl, Padua, Italy

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

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

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

[32] Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands

[33] Vrije Univ Amsterdam, Amsterdam, Netherlands

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

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

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

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

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

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

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

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

[42] Yandex Sch Data Anal, Moscow, Russia

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

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

[45] Univ Barcelona, ICCUB, Barcelona, Spain

[46] Univ Santiago de Compostela, Inst Galego Fis Altas Enerxias IGFAE, Santiago De Compostela, Spain

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

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

[49] Ecole Polytech Fed Lausanne EPFL, Inst Phys, Lausanne, Switzerland

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 02期

关键词：

B physics; Branching fraction; Hadron-Hadron scattering (experiments); Quarkonium; Spectroscopy; SHORT-DISTANCE ANALYSIS; HEAVY-QUARK SYSTEMS; TOOL;

D O I：

10.1007/JHEP02(2021)024

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The decays B-s(0) -> J/psi pi(+)pi-K+K- are studied using a data set corresponding to an integrated luminosity of 9 fb(-1), collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13TeV. The decays B-s(0) -> J/psi K*(K) over bar *0 and B-s(0) -> chi(c1)(3872)K+K-, where the K+K- pair does not originate from a phi meson, are observed for the first time. Precise measurements of the ratios of branching fractions between intermediate chi(c1)(3872)phi, J/psi K*0 (K) over bar *0, psi(2S)phi and chi(c1)(3872)K+K- states are reported. A structure, denoted as X(4740), is observed in the J/psi phi mass spectrum and, assuming a Breit-Wigner parameterisation, its mass and width are determined to be m(X(4740)) = 4741 +/- 6 +/- 6 MeV/c(2), Gamma(X(4740)) = 53 +/- 15 +/- 11MeV, where the first uncertainty is statistical and the second is systematic. In addition, the most precise single measurement of the mass of the B-s(0) meson is performed and gives a value of m(Bs)(0) = 5366.98 +/- 0.07 +/- 0.13MeV/c(2).

引用

页数：34

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