Measurement of the lepton forward-backward asymmetry in B -> X(s)l(+)l(-) decays with a sum of exclusive modes

Y. Sato; A. Ishikawa; H. Yamamoto; A. Abdesselam; I. Adachi; K. Adamczyk; H. Aihara; D. M. Asner; V. Aulchenko; T. Aushev; R. Ayad; A. M. Bakich; A. Bala; V. Bhardwaj; B. Bhuyan; A. Bondar; G. Bonvicini; A. Bozek; M. Bracko; T. E. Browder; D. Cervenkov; V. Chekelian; A. Chen; B. G. Cheon; I. -S. Cho; K. Cho; V. Chobanova; Y. Choi; D. Cinabro; J. Dalseno; M. Danilov; Z. Dolezal; Z. Drasal; A. Drutskoy; D. Dutta; K. Dutta; S. Eidelman; H. Farhat; J. E. Fast; T. Ferber; V. Gaur; A. Garmash; R. Gillard; Y. M. Goh; B. Golob; J. Haba; T. Hara; K. Hayasaka; H. Hayashii; X. H. He; Y. Hoshi; W. -S. Hou; H. J. Hyun; T. Iijima; R. Itoh; Y. Iwasaki; T. Iwashita; I. Jaegle; T. Julius; J. H. Kang; E. Kato; Y. Kato; H. Kawai; T. Kawasaki; H. Kichimi; D. Y. Kim; H. J. Kim; J. B. Kim; J. H. Kim; M. J. Kim; Y. J. Kim; K. Kinoshita; J. Klucar; B. R. Ko; P. Kodys; S. Korpar; P. Krizan; P. Krokovny; T. Kuhr; T. Kumita; A. Kuzmin; Y. -J. Kwon; S. -H. Lee; Y. Li; J. Libby; C. Liu; Y. Liu; Z. Q. Liu; D. Liventsev; P. Lukin; H. Miyata; R. Mizuk; G. B. Mohanty; A. Moll; R. Mussa; M. Nakao; Z. Natkaniec; M. Nayak; E. Nedelkovska; N. K. Nisar; S. Nishida; O. Nitoh; S. Ogawa; P. Pakhlov; H. Park; H. K. Park; T. K. Pedlar; T. Peng; R. Pestotnik; M. Petric; L. E. Piilonen; E. Ribezl; M. Ritter; M. Roehrken; A. Rostomyan; H. Sahoo; T. Saito; Y. Sakai; S. Sandilya; D. Santel; L. Santelj; T. Sanuki; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; A. J. Schwartz; R. Seidl; D. Semmler; K. Senyo; M. E. Sevior; M. Shapkin; C. P. Shen; T. -A. Shibata; J. -G. Shiu; B. Shwartz; A. Sibidanov; F. Simon; Y. -S. Sohn; A. Sokolov; E. Solovieva; S. Stanic; M. Staric; T. Sumiyoshi; U. Tamponi; G. Tatishvili; Y. Teramoto; K. Trabelsi; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; P. Urquijo; Y. Ushiroda; Y. Usov; S. E. Vahsen; C. Van Hulse; P. Vanhoefer; G. Varner; K. E. Varvell; V. Vorobyev; C. H. Wang; M. -Z. Wang; P. Wang; X. L. Wang; Y. Watanabe; E. Won; J. Yamaoka; Y. Yamashita; S. Yashchenko; Y. Yook; Z. P. Zhang; V. Zhilich; V. Zhulanov; A. Zupanc; Belle Collaboration

doi:10.1103/PhysRevD.93.032008

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Measurement of the lepton forward-backward asymmetry in B -> X(s)l(+)l(-) decays with a sum of exclusive modes

Y. Sato, A. Ishikawa, H. Yamamoto, A. Abdesselam, I. Adachi, K. Adamczyk, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, …

Physical review. D, Vol.93(3)

22/02/2016

DOI: https://doi.org/10.1103/PhysRevD.93.032008

Abstract

Astronomy & Astrophysics

Physical Sciences

Physics

Physics, Particles & Fields

Science & Technology

We report the first measurement of the lepton forward-backward asymmetry A(FB) as a function of the squared four-momentum of the dilepton system, q(2), for the electroweak penguin process B -> X(s)l(+)l(-) with a sum of exclusive final states, where l is an electron or a muon and X-s is a hadronic recoil system with an s quark. The results are based on a data sample containing 772 x 10(6) B (B) over bar pairs recorded at the gamma (4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. A(FB) for the inclusive B -> X(s)l(+)l(-) is extrapolated from the sum of 10 exclusive X-s states whose invariant mass is less than 2 GeV/c(2). For q(2) > 10.2 GeV2/c(2), A(FB) < 0 is excluded at the 2.3 sigma level, where sigma is the standard deviation. For q(2) < 4.3 GeV2/c(2), the result is within 1.8 sigma of the standard model theoretical expectation.

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Title: Measurement of the lepton forward-backward asymmetry in B -> X(s)l(+)l(-) decays with a sum of exclusive modes
Creators - without role: Y. Sato - Nagoya University
A. Ishikawa - Tohoku University
H. Yamamoto - Tohoku University
A. Abdesselam - Luther Coll, Decorah, IA 52101 USA
I. Adachi - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
K. Adamczyk - H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
H. Aihara - The University of Tokyo
D. M. Asner - Pacific NW Natl Lab, Richland, WA 99352 USA
V. Aulchenko - Siberian Branch of the Russian Academy of Sciences
T. Aushev - Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia
R. Ayad - University of Tabuk
A. M. Bakich - University of Sydney
A. Bala - Panjab University
V. Bhardwaj - Nara Womens Univ, Nara 6308506, Japan
B. Bhuyan - Indian Institute of Technology Guwahati
A. Bondar - Siberian Branch of the Russian Academy of Sciences
G. Bonvicini - Wayne State University
A. Bozek - H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
M. Bracko - Jožef Stefan Institute
T. E. Browder - University of Hawaii System
D. Cervenkov - Charles University
V. Chekelian - Max
A. Chen - Natl Cent Univ, Chungli 32054, Taiwan
B. G. Cheon - Hanyang University
I. -S. Cho - Yonsei University
K. Cho - Korea Inst Sci & Technol Informat, Daejeon 305806, South Korea
V. Chobanova - Max
Y. Choi - Sungkyunkwan University
D. Cinabro - Wayne State University
J. Dalseno - Max
M. Danilov - Moscow Engn Phys Inst, Moscow 115409, Russia
Z. Dolezal - Charles University
Z. Drasal - Charles University
A. Drutskoy - Moscow Engn Phys Inst, Moscow 115409, Russia
D. Dutta - Indian Institute of Technology Guwahati
K. Dutta - Indian Institute of Technology Guwahati
S. Eidelman - Siberian Branch of the Russian Academy of Sciences
H. Farhat - Wayne State University
J. E. Fast - Pacific NW Natl Lab, Richland, WA 99352 USA
T. Ferber - DESY, D-22607 Hamburg, Germany
V. Gaur - Tata Institute of Fundamental Research
A. Garmash - Siberian Branch of the Russian Academy of Sciences
R. Gillard - Wayne State University
Y. M. Goh - Hanyang University
B. Golob - Jozef Stefan Inst, Ljubljana 1000, Slovenia
J. Haba - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
T. Hara - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
K. Hayasaka - Nagoya University
H. Hayashii - Nara Womens Univ, Nara 6308506, Japan
X. H. He - Peking University
Y. Hoshi - Tohoku Gakuin University
W. -S. Hou - Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
H. J. Hyun - Kyungpook Natl Univ, Daegu 702701, South Korea
T. Iijima - Nagoya University
R. Itoh - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
Y. Iwasaki - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
T. Iwashita - The University of Tokyo
I. Jaegle - University of Hawaii System
T. Julius - University of Melbourne
J. H. Kang - Yonsei University
E. Kato - Tohoku University
Y. Kato - Nagoya University
H. Kawai - Chiba University
T. Kawasaki - Niigata University
H. Kichimi - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
D. Y. Kim - Soongsil University
H. J. Kim - Kyungpook Natl Univ, Daegu 702701, South Korea
J. B. Kim - University of Seoul
J. H. Kim - Korea Inst Sci & Technol Informat, Daejeon 305806, South Korea
M. J. Kim - Kyungpook Natl Univ, Daegu 702701, South Korea
Y. J. Kim - Korea Inst Sci & Technol Informat, Daejeon 305806, South Korea
K. Kinoshita - University of Cincinnati
J. Klucar - Jozef Stefan Inst, Ljubljana 1000, Slovenia
B. R. Ko - University of Seoul
P. Kodys - Charles University
S. Korpar - Jožef Stefan Institute
P. Krizan - Jožef Stefan Institute
P. Krokovny - Siberian Branch of the Russian Academy of Sciences
T. Kuhr - Karlsruher Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany
T. Kumita - Tokyo Metropolitan University
A. Kuzmin - Siberian Branch of the Russian Academy of Sciences
Y. -J. Kwon - Yonsei University
S. -H. Lee - University of Seoul
Y. Li - Virginia Polytech Inst & State Univ, CNP, Blacksburg, VA 24061 USA
J. Libby - Indian Institute of Technology Madras
C. Liu - Univ Sci & Technol China, Hefei 230026, Peoples R China
Y. Liu - University of Cincinnati
Z. Q. Liu - Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
D. Liventsev - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
P. Lukin - Siberian Branch of the Russian Academy of Sciences
H. Miyata - Niigata University
R. Mizuk - Moscow Engn Phys Inst, Moscow 115409, Russia
G. B. Mohanty - Tata Institute of Fundamental Research
A. Moll - Max
R. Mussa - INFN Sez Torino, I-10125 Turin, Italy
M. Nakao - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
Z. Natkaniec - H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
M. Nayak - Indian Institute of Technology Madras
E. Nedelkovska - Max
N. K. Nisar - Tata Institute of Fundamental Research
S. Nishida - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
O. Nitoh - Tokyo Univ Agr & Technol, Koganei, Tokyo 1848588, Japan
S. Ogawa - Toho University
P. Pakhlov - Moscow Engn Phys Inst, Moscow 115409, Russia
H. Park - Kyungpook Natl Univ, Daegu 702701, South Korea
H. K. Park - Kyungpook Natl Univ, Daegu 702701, South Korea
T. K. Pedlar - Luther Coll, Decorah, IA 52101 USA
T. Peng - Univ Sci & Technol China, Hefei 230026, Peoples R China
R. Pestotnik - Jozef Stefan Inst, Ljubljana 1000, Slovenia
M. Petric - Jozef Stefan Inst, Ljubljana 1000, Slovenia
L. E. Piilonen - Virginia Polytech Inst & State Univ, CNP, Blacksburg, VA 24061 USA
E. Ribezl - Jozef Stefan Inst, Ljubljana 1000, Slovenia
M. Ritter - Max
M. Roehrken - Karlsruher Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany
A. Rostomyan - DESY, D-22607 Hamburg, Germany
H. Sahoo - University of Hawaii System
T. Saito - Tohoku University
Y. Sakai - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
S. Sandilya - Tata Institute of Fundamental Research
D. Santel - University of Cincinnati
L. Santelj - Jožef Stefan International Postgraduate School
T. Sanuki - Tohoku University
V. Savinov - University of Pittsburgh
O. Schneider - Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland
G. Schnell - University of the Basque Country
C. Schwanda - Inst High Energy Phys, A-1050 Vienna, Austria
A. J. Schwartz - University of Cincinnati
R. Seidl - RIKEN
D. Semmler - University of Giessen
K. Senyo - Yamagata University
M. E. Sevior - University of Melbourne
M. Shapkin - Inst High Energy Phys, Protvino 142281, Russia
C. P. Shen - Beihang University
T. -A. Shibata - Tokyo Institute of Technology
J. -G. Shiu - Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
B. Shwartz - Siberian Branch of the Russian Academy of Sciences
A. Sibidanov - University of Sydney
F. Simon - Max
Y. -S. Sohn - Yonsei University
A. Sokolov - Inst High Energy Phys, Protvino 142281, Russia
E. Solovieva - Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia
S. Stanic - University of Nova Gorica
M. Staric - Jožef Stefan International Postgraduate School
T. Sumiyoshi - Tokyo Metropolitan University
U. Tamponi - INFN Sez Torino, I-10125 Turin, Italy
G. Tatishvili - Pacific NW Natl Lab, Richland, WA 99352 USA
Y. Teramoto - Osaka City University
K. Trabelsi - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
M. Uchida - Tokyo Institute of Technology
S. Uehara - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
T. Uglov - Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia
Y. Unno - Hanyang University
S. Uno - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
P. Urquijo - University of Bonn
Y. Ushiroda - High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
Y. Usov - Siberian Branch of the Russian Academy of Sciences
S. E. Vahsen - University of Hawaii System
C. Van Hulse - University of the Basque Country
P. Vanhoefer - Max
G. Varner - University of Hawaii System
K. E. Varvell - University of Sydney
V. Vorobyev - Siberian Branch of the Russian Academy of Sciences
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 - Virginia Polytech Inst & State Univ, CNP, Blacksburg, VA 24061 USA
Y. Watanabe - Kanagawa University
E. Won - University of Seoul
J. Yamaoka - Pacific NW Natl Lab, Richland, WA 99352 USA
Y. Yamashita - Nippon Dent Univ, Niigata 9518580, Japan
S. Yashchenko - DESY, D-22607 Hamburg, Germany
Y. Yook - Yonsei University
Z. P. Zhang - Univ Sci & Technol China, Hefei 230026, Peoples R China
V. Zhilich - Siberian Branch of the Russian Academy of Sciences
V. Zhulanov - Siberian Branch of the Russian Academy of Sciences
A. Zupanc - Jožef Stefan International Postgraduate School
Belle Collaboration
Publication Details: Physical review. D, Vol.93(3)
Publisher: Amer Physical Soc
Number of pages: 11
Grant note: Ministry of Science and Technology of Taiwan; Ministry of Science and Technology, Taiwan Ikerbasque U.S. Department of Energy; United States Department of Energy (DOE) Department of Science and Technology of India; Department of Science & Technology (India) LG14034 / Ministry of Education, Youth and Sports of the Czech Republic; Ministry of Education, Youth & Sports - Czech Republic 2011-0029457; 2012-0008143; 2012R1A1A2008330; 2013R1A1A3007772; 2014R1A2A2A01005286; 2014R1A2A2A01002734; 2015R1A2A2A01003280; 2015H1A2A1033649 / WCU program of the Ministry of Education, National Research Foundation (NRF) of Korea Grants; Ministry of Education (MOE), Republic of Korea MEXT for Science Research in a Priority Area ("New Development of Flavor Physics"); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Istituto Nazionale di Fisica Nucleare of Italy; Istituto Nazionale di Fisica Nucleare (INFN) Ministry of Education and Science of the Russian Federation; Ministry of Education and Science, Russian Federation UFI 11/55 / Euskal Herriko Unibertsitatea (UPV/EHU) (Spain) 13J03438 / Grants-in-Aid for Scientific Research; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science; Grants-in-Aid for Scientific Research (KAKENHI) Australian Research Council 10575109; 10775142; 10875115; 11175187; 11475187; 11575017 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC) Deutsche Forschungsgemeinschaft; German Research Foundation (DFG) Radiation Science Research Institute Basque Foundation for Science Polish Ministry of Science and Higher Education; Ministry of Science and Higher Education, Poland Japan Society for the Promotion of Science (JSPS); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science Ministry of Education Tau-Lepton Physics Research Center of Nagoya University VolkswagenStiftung; Volkswagen Swiss National Science Foundation; Swiss National Science Foundation (SNSF) KRF-2011-0020333 / Basic Research Lab program under NRF Grant; National Research Foundation of Korea P 22742-N16; P 26794-N20 / Austrian Science Fund; Austrian Science Fund (FWF) JSPS for Creative Scientific Research ("Evolution of Tau-lepton Physics"); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science; Grants-in-Aid for Scientific Research (KAKENHI) Chinese Academy of Science Center for Excellence in Particle Physics Excellence Cluster Universe NRF-2013K1A3A7A06056592 / Center for Korean J-PARC Users Slovenian Research Agency; Slovenian Research Agency - Slovenia Russian Foundation for Basic Research; Russian Foundation for Basic Research (RFBR); Spanish Government Brain Korea 21-Plus program National Science Foundation; National Science Foundation (NSF) Carl Zeiss Foundation National Science Center; National Science Centre, Poland
Identifiers: 9933974308331
Academic Unit: University of Tabuk; King Abdullah University of Science & Technology
Language: English
Resource Type: Journal article