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Measurement of the
B
+
/
B
0
B^+/B^0
B
+
/
B
0
production ratio in
e
+
e
−
e^+e^-
e
+
e
−
collisions at the
Î¥
(
4
S
)
\Upsilon(4S)
Î¥
(
4
S
)
resonance using
B
→
J
/
ψ
(
â„“
â„“
)
K
B \rightarrow J/\psi(\ell\ell) K
B
→
J
/
ψ
(
â„“â„“
)
K
decays at Belle
Authors
Ichirou Adachi
Hiroaki Aihara
+197Â more
David Asner
Hulya Atmacan
Tagir Aushev
Rachid Ayad
Varghese Babu
Seema Bahinipati
Prafulla Kumar Behera
Konstantin Belous
Jake Bennett
Martin Bessner
Vishal Bhardwaj
Bipul Bhuyan
Tadeas Bilka
Denis Bodrov
Giovanni Bonvicini
Jyotirmoi Borah
Andrzej Bozek
Marko Bracko
Paolo Branchini
Thomas Browder
Antonio Budano
Marcello Campajola
Daniel Cervenkov
Ming-Chuan Chang
Chunhui Chen
Byunggu Cheon
Kirill Chilikin
Haneol Cho
Kihyeon Cho
Sungjin Cho
Sookyung Choi
Youngil Choi
Seema Choudhury
David Cinabro
Sanjeeda Bharati Das
Giacomo de Pietro
Francesco Di Capua
Jochen Dingfelder
Zdenek Dolezal
Thanh Van Dong
Denis Alexandrovich Epifanov
Daniel Ferlewicz
Bryan Gregory Fulsom
Nikolay Gabyshev
Renu Garg
Vipin Gaur
Anjan Giri
Pablo Goldenzweig
Enrico Graziani
Tianping Gu
Kristina Gudkova
Christos Hadjivasiliou
Takanori Hara
Kiyoshi Hayasaka
Hisaki Hayashii
Michael Thomas Hedges
Daniel Ricalde Herrmann
George Wei-Shu Hou
Chia-Ling Hsu
Kenji Inami
N. Sushree Ipsita
Akimasa Ishikawa
Ryosuke Itoh
Masako Iwasaki
William Jacobs
Eunji Jang
Qingping Ji
Sen Jia
Yifan Jin
Kyung Kwang Joo
Kook Hyun Kang
Takeo Kawasaki
Christian Kiesling
Cheolhun Kim
Doris Yangsoo Kim
Kyungho Kim
Yongkyu Kim
Haruki Kindo
Kay Kinoshita
Peter Kodys
Tomoyuki Konno
Alexander Korobov
Samo Korpar
Evgeniy Kovalenko
Peter Krizan
Pavel Krokovny
Manish Kumar
Rajeev Kumar
Kospalage Janaka Kumara
Young-Joon Kwon
Tommy Lam
Jens Soeren Lange
Martina Laurenza
Seungcheol Lee
Peter Lewis
Luigi Li Gioi
Jin Li
Longke Li
Yubo Li
James Frederick Libby
Kilian Adriano Lieret
Dmitri Liventsev
Tao Luo
Masataka Masuda
Tatsuro Matsuda
Dmitry Matvienko
Shubhangi Krishan Maurya
Frank Meier
Mario Merola
Felix Metzner
Kenkichi Miyabayashi
Roman Mizuk
Gagan Bihari Mohanty
Isamu Nakamura
Mikihiko Nakao
Zbigniew Natkaniec
Andrii Natochii
Lopamudra Nayak
Minakshi Nayak
Nisar Nellikunnummel
Shohei Nishida
Satoru Ogawa
Hiroaki Ono
Pavel Oskin
Pavel Pakhlov
Galina Pakhlova
Silvio Pardi
Seokhee Park
Antonio Passeri
Sourav Patra
Stephan Martin Paul
Todd Kristofer Pedlar
Rok Pestotnik
Leo Piilonen
Tomaz Podobnik
Soeren Prell
Elisabetta Prencipe
Markus Prim
Niharika Rout
Guido Russo
Yoshihide Sakai
Saurabh Sandilya
Aman Sangal
Luka Santelj
Vladimir Savinov
Jeff Schueler
Christoph Schwanda
Alan Jay Schwartz
Yoshiaki Seino
Katsumi Senyo
Martin Edmund Sevior
Mikhail Shapkin
Chanchal Sharma
Chengping Shen
Jing-Ge Shiu
Jasbir Singh
Anatoly Sokolov
Elena Solovieva
Marko Staric
Zachary S. Stottler
Jan Strube
Mizuki Sumihama
Takayuki Sumiyoshi
Makoto Takizawa
Kiyoshi Tanida
Francesco Tenchini
Karim Trabelsi
Makoto Uchida
Timofey Uglov
Yuuji Unno
Shoji Uno
Phillip Urquijo
Yutaka Ushiroda
Yuri Usov
Raynette van Tonder
Gary Varner
Kevin Ernest Varvell
Anna Vinokurova
Anselm Georg Vossen
Eiasha Waheed
Erfei Wang
Min-Zu Wang
Xiaolong Wang
Minori Watanabe
Shun Watanuki
Eunil Won
Xinping Xu
Bruce Yabsley
Seongbae Yang
John Yelton
Junhao Yin
Changzheng Yuan
Yosuke Yusa
Yunxiao Zhai
Ziping Zhang
Victor Zhilich
Valentina Zhukova
Publication date
14 December 2022
Publisher
HAL CCSD
Abstract
We measure the ratio of branching fractions for the
Î¥
(
4
S
)
\Upsilon (4S)
Î¥
(
4
S
)
decays to
B
+
B
−
B^+B^-
B
+
B
−
and
B
0
B
ˉ
0
B^0\bar{B}{}^0
B
0
B
ˉ
0
using
B
+
→
J
/
ψ
(
â„“
â„“
)
K
+
B^+ \rightarrow J/\psi(\ell\ell) K^+
B
+
→
J
/
ψ
(
â„“â„“
)
K
+
and
B
0
→
J
/
ψ
(
â„“
â„“
)
K
0
B^0 \rightarrow J/\psi(\ell\ell) K^0
B
0
→
J
/
ψ
(
â„“â„“
)
K
0
samples, where
J
/
ψ
(
â„“
â„“
)
J/\psi(\ell\ell)
J
/
ψ
(
â„“â„“
)
stands for
J
/
ψ
→
â„“
+
â„“
−
J/\psi \to \ell^+\ell^-
J
/
ψ
→
â„“
+
â„“
−
(
â„“
=
e
\ell = e
â„“
=
e
or
μ
\mu
μ
), with
711
711
711
fb
−
1
^{-1}
−
1
of data collected at the
Î¥
(
4
S
)
\Upsilon(4S)
Î¥
(
4
S
)
resonance with the Belle detector. We find the decay rate ratio of
Î¥
(
4
S
)
→
B
+
B
−
\Upsilon(4S) \rightarrow B^+B^-
Î¥
(
4
S
)
→
B
+
B
−
over
Î¥
(
4
S
)
→
B
0
B
ˉ
0
\Upsilon(4S) \rightarrow B^0\bar{B}{}^0
Î¥
(
4
S
)
→
B
0
B
ˉ
0
to be
1.065
±
0.012
±
0.019
±
0.047
1.065\pm0.012\pm 0.019 \pm 0.047
1.065
±
0.012
±
0.019
±
0.047
, which is the most precise measurement to date. The first and second uncertainties are statistical and systematic, respectively, and the third uncertainty is systematic due to the assumption of isospin symmetry in
B
→
J
/
ψ
(
â„“
â„“
)
K
B \to J/\psi(\ell\ell) K
B
→
J
/
ψ
(
â„“â„“
)
K
Similar works
Full text
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oai:HAL:hal-03897818v1
Last time updated on 15/01/2023