Measurements of the Branching Fractions of the Semileptonic Decays Xi(0)(c)-> Xi(-)l(+)nu(l) and the Asymmetry Parameter of Xi(0)(c) -> Xi(-)pi(+)

Y. B. Li; C. P. Shen; Adachi; K. Adamczyk; H. Aihara; S. Al Said; D. M. Asner; T. Aushev; R. Ayad; Babu; P. Behera; J. Bennett; M. Bessner; Bhardwaj; B. Bhuyan; T. Bilka; J. Biswal; G. Bonvicini; A. Bozek; M. Bracko; T. E. Browder; M. Campajola; D. Cervenkov; M-C Chang; A. Chen; B. G. Cheon; K. Chilikin; K. Cho; S-J Cho; S-K Choi; Y. Choi; S. Choudhury; D. Cinabro; S. Cunliffe; S. Das; N. Dash; G. De Nardo; R. Dhamija; F. Di Capua; T. Dong; S. Eidelman; D. Epifanov; T. Ferber; B. G. Fulsom; R. Garg; Gaur; N. Gabyshev; A. Garmash; A. Giri; P. Goldenzweig; O. Grzymkowska; K. Gudkova; C. Hadjivasiliou; O. Hartbrich; K. Hayasaka; H. Hayashii; M. Hernandez Villanueva; C-L Hsu; A. Ishikawa; R. Itoh; M. Iwasaki; Y. Iwasaki; W. W. Jacobs; S. Jia; Y. Jin; C. W. Joo; K. K. Joo; K. H. Kang; G. Karyan; Y. Kato; H. Kichimi; C. H. Kim; D. Y. Kim; K-H Kim; S. H. Kim; K. Kinoshita; P. Kodys; T. Konno; A. Korobov; S. Korpar; E. Kovalenko; P. Krizan; R. Kroeger; P. Krokovny; T. Kuhr; M. Kumar; R. Kumar; K. Kumara; A. Kuzmin; Y-J Kwon; K. Lalwani; J. S. Lange; I. S. Lee; S. C. Lee; C. H. Li; L. K. Li; L. Li Gioi; J. Libby; K. Lieret; D. Liventsev; M. Masuda; D. Matvienko; J. T. McNeil; F. Metzner; R. Mizuk; G. B. Mohanty; T. J. Moon; T. Mori; R. Mussa; A. Natochii; L. Nayak; M. Nayak; M. Niiyama; N. K. Nisar; S. Nishida; K. Nishimura; S. Ogawa; H. Ono; Y. Onuki; P. Pakhlov; G. Pakhlova; T. Pang; S. Pardi; H. Park; S. Patra; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; T. Podobnik; Popov; E. Prencipe; M. T. Prim; M. Rohrken; A. Rostomyan; N. Rout; G. Russo; D. Sahoo; Y. Sakai; S. Sandilya; L. Santelj; T. Sanuki; Savinov; G. Schnell; C. Schwanda; Y. Seino; K. Senyo; M. Shapkin; C. Sharma; J-G Shiu; A. Sokolov; E. Solovieva; M. Staric; Z. S. Stottler; M. Sumihama; U. Tamponi; K. Tanida; F. Tenchini; M. Uchida; S. Uehara; T. Uglov; K. Uno; S. Uno; Y. Usov; R. Van Tonder; G. Varner; A. Vinokurova; A. Vossen; C. H. Wang; M-Z Wang; P. Wang; X. L. Wang; M. Watanabe; S. Watanuki; E. Won; X. Xu; W. Yan; S. B. Yang; H. Ye; J. H. Yin; C. Z. Yuan; Z. P. Zhang; Zhilich; Zhukova; Belle Collaboration

doi:10.1103/PhysRevLett.127.121803

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Measurements of the Branching Fractions of the Semileptonic Decays Xi(0)(c)-> Xi(-)l(+)nu(l) and the Asymmetry Parameter of Xi(0)(c) -> Xi(-)pi(+)

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Measurements of the Branching Fractions of the Semileptonic Decays Xi(0)(c)-> Xi(-)l(+)nu(l) and the Asymmetry Parameter of Xi(0)(c) -> Xi(-)pi(+)

Y. B. Li, C. P. Shen, Adachi, K. Adamczyk, H. Aihara, S. Al Said, D. M. Asner, T. Aushev, R. Ayad, Babu, …

Physical review letters, Vol.127(12), pp.121803-121803

17/09/2021

DOI: https://doi.org/10.1103/PhysRevLett.127.121803

PMID: 34597085

Abstract

Physical Sciences

Physics

Physics, Multidisciplinary

Science & Technology

Using data samples of 89.5 and 711 fb(-1) recorded at energies of root S = 10.52 and 10.58 GeV, respectively, with the Belle detector at the KEKB e(+)e(-) collider, we report measurements of branching fractions of semileptonic decays Xi(0)(c) -> Xi l(+)nu(l) (l = e or mu) and the CP-asymmetry parameter of Xi(0)(c) -> Xi(-)pi(+) decay. The branching fractions are measured to be B(Xi(0 )(c)-> Xi(-)e(+)nu(e)) = (1.31 +/- 0.04 +/- 0.07 +/- 0.38)% and B(Xi(0)(c) -> Xi(-)mu(+)nu(mu)) = (1.27 +/- 0.06 +/- 0.10 +/- 0.37)%, and the decay parameter alpha(Xi pi) is measured to be 0.63 +/- 0.03 +/- 0.01 with much improved precision compared with the current world average. The corresponding ratio B(Xi(0)(c) -> Xi(-)e(+)nu(e))/B(Xi(0)(c) -> Xi(-)mu(+)nu(mu)) is 1.03 +/- 0.05 +/- 0.07, which is consistent with the expectation of lepton flavor universality. The first measured asymmetry parameter A(CP) = (alpha(Xi-pi+) + alpha((Xi) over bar+pi-))/(alpha(Xi-pi+) - alpha((Xi) over bar+pi-))( )= 0.024 +/- 0.052 +/- 0.014 is found to be consistent with zero. The first and the second uncertainties above are statistical and systematic, respectively, while the third ones arise due to the uncertainty of the Xi(0)(c) -> Xi(-)pi(+) branching fraction.

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Title: Measurements of the Branching Fractions of the Semileptonic Decays Xi(0)(c)-> Xi(-)l(+)nu(l) and the Asymmetry Parameter of Xi(0)(c) -> Xi(-)pi(+)
Creators - without role: Y. B. Li - Fudan University
C. P. Shen - Fudan University
Adachi - SOKENDAI Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan
K. Adamczyk - H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
H. Aihara - The University of Tokyo
S. Al Said - King Abdulaziz University
D. M. Asner - Brookhaven Natl Lab, Upton, NY 11973 USA
T. Aushev - Supreme Council Of Health
R. Ayad - University of Tabuk
Babu - DESY, D-22607 Hamburg, Germany
P. Behera - Indian Institute of Technology Madras
J. Bennett - University of Mississippi
M. Bessner - University of Hawaii System
Bhardwaj - Inchan Inst Sci Educ & Res Mohali, Sas Nagar 140306, India
B. Bhuyan - Indian Institute of Technology Guwahati
T. Bilka - Charles University
J. Biswal - J Stefan Inst, Ljubljana 1000, Slovenia
G. Bonvicini - Wayne State University
A. Bozek - H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
M. Bracko - J Stefan Inst, Ljubljana 1000, Slovenia
T. E. Browder - University of Hawaii System
M. Campajola - Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy
D. Cervenkov - Charles University
M-C Chang - Fu Jen Catholic University
A. Chen - Natl Cent Univ, Chungli 32054, Taiwan
B. G. Cheon - Hanyang University
K. Chilikin - Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia
K. Cho - Korea Inst Sci & Technol Informat, Daejeon 34141, South Korea
S-J Cho - Yonsei University
S-K Choi - Gyeongsang Natl Univ, Jinju 52828, South Korea
Y. Choi - Sungkyunkwan University
S. Choudhury - Indian Institute of Technology Hyderabad
D. Cinabro - Wayne State University
S. Cunliffe - DESY, D-22607 Hamburg, Germany
S. Das - Malaviya Natl Inst Technol Jaipur, Jaipur 302017, Rajasthan, India
N. Dash - Indian Institute of Technology Madras
G. De Nardo - Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy
R. Dhamija - Indian Institute of Technology Hyderabad
F. Di Capua - Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy
T. Dong - Fudan University
S. Eidelman - Siberian Branch of the Russian Academy of Sciences
D. Epifanov - Siberian Branch of the Russian Academy of Sciences
T. Ferber - DESY, D-22607 Hamburg, Germany
B. G. Fulsom - Pacific Northwest Natl Lab, Richland, WA 99352 USA
R. Garg - Panjab University
Gaur - Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA
N. Gabyshev - Siberian Branch of the Russian Academy of Sciences
A. Garmash - Siberian Branch of the Russian Academy of Sciences
A. Giri - Indian Institute of Technology Hyderabad
P. Goldenzweig - Karlsruher Inst Technol, Inst Expt Teilchenphys, D-76131 Karlsruhe, Germany
O. Grzymkowska - H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
K. Gudkova - Siberian Branch of the Russian Academy of Sciences
C. Hadjivasiliou - Pacific Northwest Natl Lab, Richland, WA 99352 USA
O. Hartbrich - University of Hawaii System
K. Hayasaka - Niigata University
H. Hayashii - Nara Womens Univ, Nara 6308506, Japan
M. Hernandez Villanueva - University of Mississippi
C-L Hsu - University of Sydney
A. Ishikawa - SOKENDAI Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan
R. Itoh - SOKENDAI Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan
M. Iwasaki - Osaka City University
Y. Iwasaki - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
W. W. Jacobs - Indiana University Bloomington
S. Jia - Fudan University
Y. Jin - The University of Tokyo
C. W. Joo - The University of Tokyo
K. K. Joo - Chonnam Natl Univ, Gwangju 61186, South Korea
K. H. Kang - Kyungpook Natl Univ, Daegu 41566, South Korea
G. Karyan - DESY, D-22607 Hamburg, Germany
Y. Kato - Nagoya University
H. Kichimi - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
C. H. Kim - Hanyang University
D. Y. Kim - Soongsil University
K-H Kim - Yonsei University
S. H. Kim - University of Seoul
K. Kinoshita - University of Cincinnati
P. Kodys - Charles University
T. Konno - Kitasato University
A. Korobov - Siberian Branch of the Russian Academy of Sciences
S. Korpar - J Stefan Inst, Ljubljana 1000, Slovenia
E. Kovalenko - Siberian Branch of the Russian Academy of Sciences
P. Krizan - J Stefan Inst, Ljubljana 1000, Slovenia
R. Kroeger - University of Mississippi
P. Krokovny - Siberian Branch of the Russian Academy of Sciences
T. Kuhr - Ludwig Maximilians Univ Munchen, D-80539 Munich, Germany
M. Kumar - Malaviya Natl Inst Technol Jaipur, Jaipur 302017, Rajasthan, India
R. Kumar - Punjab Agr Univ, Ludhiana 141004, Punjab, India
K. Kumara - Wayne State University
A. Kuzmin - Siberian Branch of the Russian Academy of Sciences
Y-J Kwon - Yonsei University
K. Lalwani - Malaviya Natl Inst Technol Jaipur, Jaipur 302017, Rajasthan, India
J. S. Lange - University of Giessen
I. S. Lee - Hanyang University
S. C. Lee - Kyungpook Natl Univ, Daegu 41566, South Korea
C. H. Li - Liaoning Normal University
L. K. Li - University of Cincinnati
L. Li Gioi - Max
J. Libby - Indian Institute of Technology Madras
K. Lieret - Ludwig Maximilians Univ Munchen, D-80539 Munich, Germany
D. Liventsev - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
M. Masuda - Osaka University
D. Matvienko - Siberian Branch of the Russian Academy of Sciences
J. T. McNeil - Univ Florida, Gainesville, FL 32611 USA
F. Metzner - Karlsruher Inst Technol, Inst Expt Teilchenphys, D-76131 Karlsruhe, Germany
R. Mizuk - Supreme Council Of Health
G. B. Mohanty - Tata Institute of Fundamental Research
T. J. Moon - University of Seoul
T. Mori - Nagoya University
R. Mussa - Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy
A. Natochii - University of Hawaii System
L. Nayak - Indian Institute of Technology Hyderabad
M. Nayak - Tel Aviv University
M. Niiyama - Kyoto Sangyo University
N. K. Nisar - Brookhaven Natl Lab, Upton, NY 11973 USA
S. Nishida - SOKENDAI Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan
K. Nishimura - University of Hawaii System
S. Ogawa - Toho University
H. Ono - Nippon Dent Univ, Niigata 9518580, Japan
Y. Onuki - The University of Tokyo
P. Pakhlov - Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia
G. Pakhlova - Supreme Council Of Health
T. Pang - University of Pittsburgh
S. Pardi - Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy
H. Park - Kyungpook Natl Univ, Daegu 41566, South Korea
S. Patra - Inchan Inst Sci Educ & Res Mohali, Sas Nagar 140306, India
S. Paul - Max
T. K. Pedlar - Luther Coll, Decorah, IA 52101 USA
R. Pestotnik - J Stefan Inst, Ljubljana 1000, Slovenia
L. E. Piilonen - Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA
T. Podobnik - J Stefan Inst, Ljubljana 1000, Slovenia
Popov - Supreme Council Of Health
E. Prencipe - Forschungszentrum Jülich
M. T. Prim - University of Bonn
M. Rohrken - DESY, D-22607 Hamburg, Germany
A. Rostomyan - DESY, D-22607 Hamburg, Germany
N. Rout - Indian Institute of Technology Madras
G. Russo - Univ Napoli Federico II, I-80126 Naples, Italy
D. Sahoo - Tata Institute of Fundamental Research
Y. Sakai - SOKENDAI Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan
S. Sandilya - Indian Institute of Technology Hyderabad
L. Santelj - J Stefan Inst, Ljubljana 1000, Slovenia
T. Sanuki - Tohoku University
Savinov - University of Pittsburgh
G. Schnell - University of the Basque Country
C. Schwanda - Inst High Energy Phys, A-1050 Vienna, Austria
Y. Seino - Niigata University
K. Senyo - Yamagata University
M. Shapkin - Inst High Energy Phys, Protvino 142281, Russia
C. Sharma - Malaviya Natl Inst Technol Jaipur, Jaipur 302017, Rajasthan, India
J-G Shiu - Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
A. Sokolov - Inst High Energy Phys, Protvino 142281, Russia
E. Solovieva - Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia
M. Staric - J Stefan Inst, Ljubljana 1000, Slovenia
Z. S. Stottler - Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA
M. Sumihama - Gifu University
U. Tamponi - Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy
K. Tanida - Japan Atom Energy Agcy, Adv Sci Res Ctr, Naka, Ibaraki 3191195, Japan
F. Tenchini - DESY, D-22607 Hamburg, Germany
M. Uchida - Tokyo Institute of Technology
S. Uehara - SOKENDAI Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan
T. Uglov - Supreme Council Of Health
K. Uno - Niigata University
S. Uno - SOKENDAI Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan
Y. Usov - Siberian Branch of the Russian Academy of Sciences
R. Van Tonder - University of Bonn
G. Varner - University of Hawaii System
A. Vinokurova - Siberian Branch of the Russian Academy of Sciences
A. Vossen - Duke University
C. H. Wang - Natl United Univ, Miaoli 36003, Taiwan
M-Z Wang - Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
P. Wang - Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
X. L. Wang - Fudan University
M. Watanabe - Niigata University
S. Watanuki - University of Paris-Saclay
E. Won - University of Seoul
X. Xu - Soochow Univ, Suzhou 215006, Peoples R China
W. Yan - Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
S. B. Yang - University of Seoul
H. Ye - DESY, D-22607 Hamburg, Germany
J. H. Yin - University of Seoul
C. Z. Yuan - Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Z. P. Zhang - Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
Zhilich - Siberian Branch of the Russian Academy of Sciences
Zhukova - Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia
Belle Collaboration
Publication Details: Physical review letters, Vol.127(12), pp.121803-121803
Publisher: Amer Physical Soc
Number of pages: 8
Grant note: INFN (Italy); Istituto Nazionale di Fisica Nucleare (INFN) JSPS; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science NCN (Poland) Nagoya's TLPRC (Japan) ARC (Australia); Australian Research Council CAS Center for Excellence in Particle Physics (CCEPP) Carl Zeiss Foundation, DFG, Excellence Cluster Universe MNiSW; Ministry of Science and Higher Education, Poland University of Tabuk (Saudi Arabia) DOE; United States Department of Energy (DOE) FWF (Austria); Austrian Science Fund (FWF) MSIP Radiation Science Research Institute NSF (USA); National Science Foundation (NSF) VolkswagenStiftung (Germany); Volkswagen IKERBASQUE (Spain) 11575017; 11761141009; 11975076; 12042509; 12135005 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC) DST (India); Department of Science & Technology (India) MOST Foreign Large-size Research Facility Application Supporting project MSMT (Czechia); Ministry of Education, Youth & Sports - Czech Republic NRF SNSF (Switzerland); Swiss National Science Foundation (SNSF) 14.W03.31.0026 / MSHE 2020TQ0079 / China Postdoctoral Science Foundation MOE; Ministry of Higher Education & Scientific Research (MHESR) ARRS (Slovenia); Slovenian Research Agency - Slovenia GSDC of KISTI; Korea Institute of Science & Technology Information (KISTI)
Identifiers: 9933632508331
Academic Unit: University of Tabuk
Language: English
Resource Type: Journal article