登录 注册 会员服务 联系我们

First measurements of the absolute branching fraction of Λc(2625)+→Λc+π+π− and upper limit on Λc(2595)+→Λc+π+π−

  • Published:2024-06-05 Issue:11 Volume:109 Page:
  • ISSN:2470-0010
  • Container-title:Physical Review D
  • language:en
  • Short-container-title:Phys. Rev. D

Author:

Ablikim M.1,Achasov M. N.2,Adlarson P.3,Ai X. C.4,Aliberti R.5,Amoroso A.678,An M. R.9,An Q.1011,Bai Y.12,Bakina O.13,Balossino I.8,Ban Y.14,Bao H.-R.15,Batozskaya V.116,Begzsuren K.17,Berger N.5,Berlowski M.16,Bertani M.18,Bettoni D.8,Bianchi F.678,Bianco E.678,Bortone A.678,Boyko I.13,Briere R. A.19,Brueggemann A.20,Cai H.21,Cai X.111,Calcaterra A.18,Cao G. F.115,Cao N.115,Cetin S. A.22,Chang J. F.111,Chang W. L.115,Che G. R.23,Chelkov G.13,Chen C.23,Chen Chao24,Chen G.1,Chen H. S.115,Chen M. L.11115,Chen S. J.25,Chen S. L.26,Chen S. M.27,Chen T.115,Chen X. R.2815,Chen X. T.115,Chen Y. B.111,Chen Y. Q.29,Chen Z. J.30,Choi S. K.31,Chu X.23,Cibinetto G.8,Coen S. C.32,Cossio F.8,Cui J. J.33,Dai H. L.111,Dai J. P.34,Dbeyssi A.35,de Boer R. E.32,Dedovich D.13,Deng Z. Y.1,Denig A.5,Denysenko I.13,Destefanis M.678,De Mori F.678,Ding B.361,Ding X. X.14,Ding Y.29,Ding Y.37,Dong J.111,Dong L. Y.115,Dong M. Y.11115,Dong X.21,Du M. C.1,Du S. X.4,Duan Z. H.25,Egorov P.13,Fan Y. H.26,Fang J.111,Fang S. S.115,Fang W. X.1,Fang Y.1,Fang Y. Q.111,Farinelli R.8,Fava L.388,Feldbauer F.32,Felici G.18,Feng C. Q.1011,Feng J. H.39,Feng Y. T.1011,Fischer K.40,Fritsch M.32,Fu C. D.1,Fu J. L.15,Fu Y. W.1,Gao H.15,Gao Y. N.14,Gao Yang1011,Garbolino S.8,Garzia I.841,Ge P. T.21,Ge Z. W.25,Geng C.39,Gersabeck E. M.42,Gilman A.40,Goetzen K.43,Gong L.37,Gong W. X.111,Gradl W.5,Gramigna S.841,Greco M.678,Gu M. H.111,Gu Y. T.44,Guan C. Y.115,Guan Z. L.45,Guo A. Q.2815,Guo L. B.46,Guo M. J.33,Guo R. P.47,Guo Y. P.48,Guskov A.13,Gutierrez J.49,Han K. L.15,Han T. T.1,Han W. Y.9,Hao X. Q.50,Harris F. A.51,He K. K.24,He K. L.115,Heinsius F. H. H.32,Heinz C. H.5,Heng Y. K.11115,Herold C.52,Holtmann T.32,Hong P. C.48,Hou G. Y.115,Hou X. T.115,Hou Y. R.15,Hou Z. L.1,Hu B. Y.39,Hu H. M.115,Hu J. F.53,Hu T.11115,Hu Y.1,Huang G. S.1011,Huang K. X.39,Huang L. Q.2815,Huang X. T.33,Huang Y. P.1,Hussain T.54,Hüsken N.495,in der Wiesche N.20,Irshad M.1011,Jackson J.49,Jaeger S.32,Janchiv S.17,Jeong J. H.31,Ji Q.1,Ji Q. P.50,Ji X. B.115,Ji X. L.111,Ji Y. Y.33,Jia X. Q.33,Jia Z. K.1011,Jiang H. B.21,Jiang P. C.14,Jiang S. S.9,Jiang T. J.55,Jiang X. S.11115,Jiang Y.15,Jiao J. B.33,Jiao Z.56,Jin S.25,Jin Y.36,Jing M. Q.115,Jing X. M.15,Johansson T.3,K. X.1,Kabana S.57,Kalantar-Nayestanaki N.58,Kang X. L.59,Kang X. S.37,Kavatsyuk M.58,Ke B. C.4,Khachatryan V.49,Khoukaz A.20,Kiuchi R.1,Kolcu O. B.22,Kopf B.32,Kuessner M.32,Kupsc A.163,Kühn W.60,Lane J. J.42,Larin P.35,Lavezzi L.678,Lei T. T.1011,Lei Z. H.1011,Leithoff H.5,Lellmann M.5,Lenz T.5,Li C.23,Li C.61,Li C. H.9,Li Cheng1011,Li D. M.4,Li F.111,Li G.1,Li H.1011,Li H. B.115,Li H. J.50,Li H. N.53,Li Hui23,Li J. R.27,Li J. S.39,Li J. W.33,Li Ke1,Li L. J.115,Li L. K.1,Li Lei62,Li M. H.23,Li P. R.63,Li Q. X.33,Li S. X.48,Li T.33,Li W. D.115,Li W. G.1,Li X. H.1011,Li X. L.33,Li Xiaoyu115,Li Y. G.14,Li Z. J.39,Li Z. X.44,Liang C.25,Liang H.1011,Liang H.115,Liang Y. F.64,Liang Y. T.2815,Liao G. R.65,Liao L. Z.33,Liao Y. P.115,Libby J.66,Limphirat A.52,Lin D. X.2815,Lin T.1,Liu B. J.1,Liu B. X.21,Liu C.29,Liu C. X.1,Liu F. H.67,Liu Fang1,Liu Feng68,Liu G. M.53,Liu H.63,Liu H. B.44,Liu H. M.115,Liu Huanhuan1,Liu Huihui69,Liu J. B.1011,Liu J. Y.115,Liu K.63,Liu K. Y.37,Liu Ke45,Liu L.1011,Liu L. C.23,Liu Lu23,Liu M. H.48,Liu P. L.1,Liu Q.15,Liu S. B.1011,Liu T.48,Liu W. K.23,Liu W. M.1011,Liu X.63,Liu Y.63,Liu Y.4,Liu Y. B.23,Liu Z. A.11115,Liu Z. Q.33,Lou X. C.11115,Lu F. X.39,Lu H. J.56,Lu J. G.111,Lu X. L.1,Lu Y.70,Lu Y. P.111,Lu Z. H.115,Luo C. L.46,Luo M. X.71,Luo T.48,Luo X. L.111,Lyu X. R.15,Lyu Y. F.23,Ma F. C.37,Ma H.34,Ma H. L.1,Ma J. L.115,Ma L. L.33,Ma M. M.115,Ma Q. M.1,Ma R. Q.115,Ma X. Y.111,Ma Y.14,Ma Y. M.28,Maas F. E.35,Maggiora M.678,Malde S.40,Mangoni A.8,Mao Y. J.14,Mao Z. P.1,Marcello S.678,Meng Z. X.36,Messchendorp J. G.4358,Mezzadri G.8,Miao H.115,Min T. J.25,Mitchell R. E.49,Mo X. H.11115,Moses B.49,Muchnoi N. Yu.2,Muskalla J.5,Nefedov Y.13,Nerling F.35,Nikolaev I. B.2,Ning Z.111,Nisar S.72,Niu Q. L.63,Niu W. D.24,Niu Y.33,Olsen S. L.15,Ouyang Q.11115,Pacetti S.873,Pan X.24,Pan Y.12,Pathak A.29,Patteri P.18,Pei Y. P.1011,Pelizaeus M.32,Peng H. P.1011,Peng Y. Y.63,Peters K.43,Ping J. L.46,Ping R. G.115,Plura S.5,Prasad V.57,Qi F. Z.1,Qi H.1011,Qi H. R.27,Qi M.25,Qi T. Y.48,Qian S.111,Qian W. B.15,Qiao C. F.15,Qin J. J.74,Qin L. Q.65,Qin X. S.33,Qin Z. H.111,Qiu J. F.1,Qu S. Q.27,Redmer C. F.5,Ren K. J.9,Rivetti A.8,Rolo M.8,Rong G.115,Rosner Ch.35,Ruan S. N.23,Salone N.16,Sarantsev A.13,Schelhaas Y.5,Schoenning K.3,Scodeggio M.841,Shan K. Y.48,Shan W.75,Shan X. Y.1011,Shangguan J. F.24,Shao L. G.115,Shao M.1011,Shen C. P.48,Shen H. F.115,Shen W. H.15,Shen X. Y.115,Shi B. A.15,Shi H. C.1011,Shi J. L.48,Shi J. Y.1,Shi Q. Q.24,Shi R. S.115,Shi X.111,Song J. J.50,Song T. Z.39,Song W. M.291,Song Y. J.48,Sosio S.678,Spataro S.678,Stieler F.5,Su Y. J.15,Sun G. B.21,Sun G. X.1,Sun H.15,Sun H. K.1,Sun J. F.50,Sun K.27,Sun L.21,Sun S. S.115,Sun T.76,Sun W. Y.29,Sun Y.59,Sun Y. J.1011,Sun Y. Z.1,Sun Z. T.33,Tan Y. X.1011,Tang C. J.64,Tang G. Y.1,Tang J.39,Tang Y. A.21,Tao L. Y.74,Tao Q. T.30,Tat M.40,Teng J. X.1011,Thoren V.3,Tian W. H.77,Tian W. H.39,Tian Y.2815,Tian Z. F.21,Uman I.78,Wan Y.24,Wang S. J.33,Wang B.1,Wang B. L.15,Wang Bo1011,Wang C. W.25,Wang D. Y.14,Wang F.74,Wang H. J.63,Wang J. P.33,Wang K.111,Wang L. L.1,Wang M.33,Wang Meng115,Wang N. Y.15,Wang S.48,Wang S.63,Wang T.48,Wang T. J.23,Wang W.39,Wang W.74,Wang W. P.1011,Wang X.14,Wang X. F.63,Wang X. J.9,Wang X. L.48,Wang Y.27,Wang Y. D.26,Wang Y. F.11115,Wang Y. L.50,Wang Y. N.26,Wang Y. Q.1,Wang Yaqian791,Wang Yi27,Wang Z.111,Wang Z. L.74,Wang Z. Y.115,Wang Ziyi15,Wei D.80,Wei D. H.65,Weidner F.20,Wen S. P.1,Wenzel C. W.32,Wiedner U.32,Wilkinson G.40,Wolke M.3,Wollenberg L.32,Wu C.9,Wu J. F.181,Wu L. H.1,Wu L. J.115,Wu X.48,Wu X. H.29,Wu Y.10,Wu Y. H.24,Wu Y. J.28,Wu Z.111,Xia L.1011,Xian X. M.9,Xiang T.14,Xiao D.63,Xiao G. Y.25,Xiao S. Y.1,Xiao Y. L.48,Xiao Z. J.46,Xie C.25,Xie X. H.14,Xie Y.33,Xie Y. G.111,Xie Y. H.68,Xie Z. P.1011,Xing T. Y.115,Xu C. F.115,Xu C. J.39,Xu G. F.1,Xu H. Y.36,Xu Q. J.55,Xu Q. N.82,Xu W.1,Xu W. L.36,Xu X. P.24,Xu Y. C.83,Xu Z. P.25,Xu Z. S.15,Yan F.48,Yan L.48,Yan W. B.1011,Yan W. C.4,Yan X. Q.1,Yang H. J.76,Yang H. L.29,Yang H. X.1,Yang Tao1,Yang Y.48,Yang Y. F.23,Yang Y. X.115,Yang Yifan115,Yang Z. W.63,Yao Z. P.33,Ye M.111,Ye M. H.81,Yin J. H.1,You Z. Y.39,Yu B. X.11115,Yu C. X.23,Yu G.115,Yu J. S.30,Yu T.74,Yu X. D.14,Yuan C. Z.115,Yuan L.84,Yuan S. C.1,Yuan Y.115,Yuan Z. Y.39,Yue C. X.9,Zafar A. A.54,Zeng F. R.33,Zeng S. H.74,Zeng X.48,Zeng Y.30,Zeng Y. J.115,Zhai X. Y.29,Zhai Y. C.33,Zhan Y. H.39,Zhang A. Q.115,Zhang B. L.115,Zhang B. X.1,Zhang D. H.23,Zhang G. Y.50,Zhang H.10,Zhang H. C.11115,Zhang H. H.39,Zhang H. H.29,Zhang H. Q.11115,Zhang H. Y.111,Zhang J.4,Zhang J.39,Zhang J. J.77,Zhang J. L.85,Zhang J. Q.46,Zhang J. W.11115,Zhang J. X.63,Zhang J. Y.1,Zhang J. Z.115,Zhang Jianyu15,Zhang L. M.27,Zhang L. Q.39,Zhang Lei25,Zhang P.115,Zhang Q. Y.94,Zhang Shuihan115,Zhang Shulei30,Zhang X. D.26,Zhang X. M.1,Zhang X. Y.33,Zhang Y.40,Zhang Y.74,Zhang Y. T.4,Zhang Y. H.111,Zhang Yan1011,Zhang Yao1,Zhang Z. D.1,Zhang Z. H.1,Zhang Z. L.29,Zhang Z. Y.23,Zhang Z. Y.21,Zhao G.1,Zhao J. Y.115,Zhao J. Z.111,Zhao Lei1011,Zhao Ling1,Zhao M. G.23,Zhao R. P.15,Zhao S. J.4,Zhao Y. B.111,Zhao Y. X.2815,Zhao Z. G.1011,Zhemchugov A.13,Zheng B.74,Zheng J. P.111,Zheng W. J.115,Zheng Y. H.15,Zhong B.46,Zhong X.39,Zhou H.33,Zhou L. P.115,Zhou X.21,Zhou X. K.68,Zhou X. R.1011,Zhou X. Y.9,Zhou Y. Z.48,Zhu J.23,Zhu K.1,Zhu K. J.11115,Zhu L.29,Zhu L. X.15,Zhu S. H.80,Zhu S. Q.25,Zhu T. J.48,Zhu W. J.48,Zhu Y. C.1011,Zhu Z. A.115,Zou J. H.1,Zu J.1011,

Affiliation:

1. Institute of High Energy Physics

2. Budker Institute of Nuclear Physics SB RAS (BINP)

3. Uppsala University

4. Zhengzhou University

5. Johannes Gutenberg University of Mainz

6. University of Turin and INFN

7. University of Turin

8. INFN

9. Liaoning Normal University

10. University of Science and Technology of China

11. State Key Laboratory of Particle Detection and Electronics

12. Southeast University

13. Joint Institute for Nuclear Research

14. Peking University

15. University of Chinese Academy of Sciences

16. National Centre for Nuclear Research

17. Institute of Physics and Technology

18. INFN Laboratori Nazionali di Frascati

19. Carnegie Mellon University

20. University of Muenster

21. Wuhan University

22. Istinye University

23. Nankai University

24. Soochow University

25. Nanjing University

26. North China Electric Power University

27. Tsinghua University

28. Institute of Modern Physics

29. Jilin University

30. Hunan University

31. Chung-Ang University

32. Bochum Ruhr-University

33. Shandong University

34. Yunnan University

35. Helmholtz Institute Mainz

36. University of Jinan

37. Liaoning University

38. University of Eastern Piedmont

39. Sun Yat-Sen University

40. University of Oxford

41. University of Ferrara

42. University of Manchester

43. GSI Helmholtzcentre for Heavy Ion Research GmbH

44. Guangxi University

45. Henan University of Technology

46. Nanjing Normal University

47. Shandong Normal University

48. Fudan University

49. Indiana University

50. Henan Normal University

51. University of Hawaii

52. Suranaree University of Technology

53. South China Normal University

54. University of the Punjab

55. Hangzhou Normal University

56. Huangshan College

57. Universidad de Tarapacá

58. University of Groningen

59. China University of Geosciences

60. Justus-Liebig-Universitaet Giessen

61. Qufu Normal University

62. Renmin University of China

63. Lanzhou University

64. Sichuan University

65. Guangxi Normal University

66. Indian Institute of Technology

67. Shanxi University

68. Central China Normal University

69. Henan University of Science and Technology

70. Central South University

71. Zhejiang University

72. COMSATS University Islamabad

73. University of Perugia

74. University of South China

75. Hunan Normal University

76. Shanghai Jiao Tong University

77. Shanxi Normal University

78. Near East University

79. Hebei University

80. University of Science and Technology Liaoning

81. China Center of Advanced Science and Technology

82. Inner Mongolia University

83. Yantai University

84. Beihang University

85. Henan University

Abstract

The absolute branching fraction of the decay Λc(2625)+→Λc+π+π− is measured for the first time to be (50.2±5.7stat±3.5syst)% with 368.48  pb−1 of e+e− collision data collected by the BESIII detector at the center-of-mass energies of s=4.918 and 4.950 GeV. Although the central value of the result is lower than the theoretical prediction of 67%, obtained from isospin symmetry, they are consistent taking the uncertainties into account. This is the first absolute branching fraction measurement for Λc(2625)+ since it was found. This measurement is necessary to obtain the coupling constants for the transitions between s-wave and p-wave charmed baryons in heavy hadron chiral perturbation theory. In addition, we search for the decay Λc(2595)+→Λc+π+π−. No significant signal is observed, and the upper limit on its branching fraction is determined to be 85.0% at the 90% confidence level. Published by the American Physical Society 2024

Funder

Institute of High Energy Physics

National Key Research and Development Program of China

National Natural Science Foundation of China

Chinese Academy of Sciences

CAS Center for Excellence in Particle Physics

Institut National de Physique Nucléaire et de Physique des Particules

Shanghai Key Laboratory for Particle Physics and Cosmology

European Commission

HORIZON EUROPE Marie Sklodowska-Curie Actions

Deutsche Forschungsgemeinschaft

Istituto Nazionale di Fisica Nucleare Sezione di Padova

Kalkınma Bakanlığı

National Research Foundation of Korea

Narodowe Centrum Nauki

Vetenskapsrådet

Knut och Alice Wallenbergs Stiftelse

U.S. Department of Energy

National Science and Technology fund of Mongolia

Institutional Development, Research

Publisher

American Physical Society (APS)

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线，采集、加工和组织学术论文而形成的新型学术文献查询和分析系统，可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容，当前同舟云学术共收录了国内外主流学术期刊6万余种，收集的期刊论文及会议论文总量共计约1.5亿篇，并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询！咨询电话：010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3