pith. sign in

arxiv: 2207.01194 · v4 · pith:AW44QAE7new · submitted 2022-07-04 · ✦ hep-ex

Measurement of the B^+/B⁰ production ratio in e^+e^- collisions at the Upsilon(4S) resonance using B rightarrow J/psi(ellell) K decays at Belle

Belle Collaboration: S. Choudhury , S. Sandilya , K. Trabelsi , A. Giri , I. Adachi , H. Aihara , D. M. Asner , H. Atmacan
show 191 more authors
T. Aushev R. Ayad V. Babu S. Bahinipati P. Behera K. Belous J. Bennett M. Bessner V. Bhardwaj B. Bhuyan T. Bilka D. Bodrov G. Bonvicini J. Borah A. Bozek M. Bra\v{c}ko P. Branchini T. E. Browder A. Budano M. Campajola D. \v{C}ervenkov M.-C. Chang C. Chen B. G. Cheon K. Chilikin H. E. Cho K. Cho S.-J. Cho S.-K. Choi Y. Choi D. Cinabro S. Das G. De Pietro F. Di Capua J. Dingfelder Z. Dole\v{z}al T. V. Dong D. Epifanov D. Ferlewicz B. G. Fulsom R. Garg V. Gaur N. Gabyshev P. Goldenzweig E. Graziani T. Gu K. Gudkova C. Hadjivasiliou T. Hara K. Hayasaka H. Hayashii M. T. Hedges D. Herrmann W.-S. Hou C.-L. Hsu K. Inami N. Ipsita A. Ishikawa R. Itoh M. Iwasaki W. W. Jacobs E.-J. Jang Q. P. Ji S. Jia Y. Jin K. K. Joo K. H. Kang T. Kawasaki C. Kiesling C. H. Kim D. Y. Kim K.-H. Kim Y.-K. Kim H. Kindo K. Kinoshita P. Kody\v{s} T. Konno A. Korobov S. Korpar E. Kovalenko P. Kri\v{z}an P. Krokovny M. Kumar R. Kumar K. Kumara Y.-J. Kwon T. Lam J. S. Lange M. Laurenza S. C. Lee P. Lewis J. Li L. K. Li Y. B. Li L. Li Gioi J. Libby K. Lieret D. Liventsev T. Luo M. Masuda T. Matsuda D. Matvienko S. K. Maurya F. Meier M. Merola F. Metzner K. Miyabayashi R. Mizuk G. B. Mohanty I. Nakamura M. Nakao Z. Natkaniec A. Natochii L. Nayak M. Nayak N. K. Nisar S. Nishida S. Ogawa H. Ono P. Oskin P. Pakhlov G. Pakhlova S. Pardi S.-H. Park A. Passeri S. Patra S. Paul T. K. Pedlar R. Pestotnik L. E. Piilonen T. Podobnik S. Prell E. Prencipe M. T. Prim N. Rout G. Russo Y. Sakai A. Sangal L. Santelj V. Savinov J. Schueler C. Schwanda A. J. Schwartz Y. Seino K. Senyo M. E. Sevior M. Shapkin C. Sharma C. P. Shen J.-G. Shiu J. B. Singh A. Sokolov E. Solovieva M. Stari\v{c} Z. S. Stottler J. F. Strube M. Sumihama T. Sumiyoshi M. Takizawa K. Tanida F. Tenchini M. Uchida T. Uglov Y. Unno S. Uno P. Urquijo Y. Ushiroda Y. Usov R. van Tonder G. Varner K. E. Varvell A. Vinokurova A. Vossen E. Waheed E. Wang M.-Z. Wang X. L. Wang M. Watanabe S. Watanuki E. Won X. Xu B. D. Yabsley S. B. Yang J. Yelton J. H. Yin C. Z. Yuan Y. Yusa Y. Zhai Z. P. Zhang V. Zhilich V. Zhukova
This is my paper
classification ✦ hep-ex
keywords rightarrowupsilonratiobelledecaysmeasurementresonancesystematic
0
0 comments X
read the original abstract

We measure the ratio of branching fractions for the $\Upsilon (4S)$ decays to $B^+B^-$ and $B^0\bar{B}{}^0$ using $B^+ \rightarrow J/\psi(\ell\ell) K^+$ and $B^0 \rightarrow J/\psi(\ell\ell) K^0$ samples, where $J/\psi(\ell\ell)$ stands for $J/\psi \to \ell^+\ell^-$ ($\ell = e$ or $\mu$), with $711$ fb$^{-1}$ of data collected at the $\Upsilon(4S)$ resonance with the Belle detector. We find the decay rate ratio of $\Upsilon(4S) \rightarrow B^+B^-$ over $\Upsilon(4S) \rightarrow B^0\bar{B}{}^0$ to be $1.065\pm0.012\pm 0.019 \pm 0.047$, 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 $B \to J/\psi(\ell\ell) K$.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2023

    hep-ex 2024-11 accept novelty 2.0

    The Heavy Flavour Averaging Group reports updated world averages for b-hadron, c-hadron, and tau-lepton properties including branching fractions, lifetimes, mixing, CP violation, and CKM elements.