Journal of High Energy Physics (Jun 2023)
Measurement of the branching fraction of J/ψ → ρπ at KEDR
- The KEDR collaboration,
- V. V. Anashin,
- O. V. Anchugov,
- A. V. Andrianov,
- K. V. Astrelina,
- V. M. Aulchenko,
- E. M. Baldin,
- G. N. Baranov,
- A. K. Barladyan,
- A. Yu. Barnyakov,
- M. Yu. Barnyakov,
- I. Yu. Basok,
- A. M. Batrakov,
- E. A. Bekhtenev,
- O. V. Belikov,
- D. E. Berkaev,
- A. E. Blinov,
- V. E. Blinov,
- M. F. Blinov,
- A. V. Bobrov,
- V. S. Bobrovnikov,
- A. V. Bogomyagkov,
- D. Yu. Bolkhovityanov,
- A. E. Bondar,
- A. R. Buzykaev,
- P. B. Cheblakov,
- V. L. Dorohov,
- F. A. Emanov,
- V. V. Gambaryan,
- D. N. Grigoriev,
- V. V. Kaminskiy,
- S. E. Karnaev,
- G. V. Karpov,
- S. V. Karpov,
- K. Yu. Karukina,
- D. P. Kashtankin,
- P. V. Kasyanenko,
- A. A. Katcin,
- T. A. Kharlamova,
- V. A. Kiselev,
- S. A. Kononov,
- A. A. Krasnov,
- E. A. Kravchenko,
- V. N. Kudryavtsev,
- V. F. Kulikov,
- I. A. Kuyanov,
- E. B. Levichev,
- P. V. Logachev,
- D. A. Maksimov,
- Yu. I. Maltseva,
- V. M. Malyshev,
- A. L. Maslennikov,
- O. I. Meshkov,
- S. I. Mishnev,
- I. A. Morozov,
- I. I. Morozov,
- D. A. Nikiforov,
- S. A. Nikitin,
- I. B. Nikolaev,
- I. N. Okunev,
- S. B. Oreshkin,
- A. A. Osipov,
- I. V. Ovtin,
- A. V. Pavlenko,
- S. V. Peleganchuk,
- P. A. Piminov,
- N. A. Podgornov,
- V. G. Prisekin,
- O. L. Rezanova,
- A. A. Ruban,
- G. A. Savinov,
- A. G. Shamov,
- L. I. Shekhtman,
- D. A. Shvedov,
- B. A. Shwartz,
- E. A. Simonov,
- S. V. Sinyatkin,
- A. N. Skrinsky,
- A. V. Sokolov,
- E. V. Starostina,
- D. P. Sukhanov,
- A. M. Sukharev,
- A. A. Talyshev,
- V. A. Tayursky,
- V. I. Telnov,
- Yu. A. Tikhonov,
- K. Yu. Todyshev,
- A. G. Tribendis,
- G. M. Tumaikin,
- Yu. V. Usov,
- A. I. Vorobiov,
- V. N. Zhilich,
- A. A. Zhukov,
- V. V. Zhulanov,
- A. N. Zhuravlev
Affiliations
- The KEDR collaboration
- V. V. Anashin
- Budker Institute of Nuclear Physics, SB RAS
- O. V. Anchugov
- Budker Institute of Nuclear Physics, SB RAS
- A. V. Andrianov
- Budker Institute of Nuclear Physics, SB RAS
- K. V. Astrelina
- Budker Institute of Nuclear Physics, SB RAS
- V. M. Aulchenko
- Budker Institute of Nuclear Physics, SB RAS
- E. M. Baldin
- Budker Institute of Nuclear Physics, SB RAS
- G. N. Baranov
- Budker Institute of Nuclear Physics, SB RAS
- A. K. Barladyan
- Budker Institute of Nuclear Physics, SB RAS
- A. Yu. Barnyakov
- Budker Institute of Nuclear Physics, SB RAS
- M. Yu. Barnyakov
- Budker Institute of Nuclear Physics, SB RAS
- I. Yu. Basok
- Budker Institute of Nuclear Physics, SB RAS
- A. M. Batrakov
- Budker Institute of Nuclear Physics, SB RAS
- E. A. Bekhtenev
- Budker Institute of Nuclear Physics, SB RAS
- O. V. Belikov
- Budker Institute of Nuclear Physics, SB RAS
- D. E. Berkaev
- Budker Institute of Nuclear Physics, SB RAS
- A. E. Blinov
- Budker Institute of Nuclear Physics, SB RAS
- V. E. Blinov
- Budker Institute of Nuclear Physics, SB RAS
- M. F. Blinov
- Budker Institute of Nuclear Physics, SB RAS
- A. V. Bobrov
- Budker Institute of Nuclear Physics, SB RAS
- V. S. Bobrovnikov
- Budker Institute of Nuclear Physics, SB RAS
- A. V. Bogomyagkov
- Budker Institute of Nuclear Physics, SB RAS
- D. Yu. Bolkhovityanov
- Budker Institute of Nuclear Physics, SB RAS
- A. E. Bondar
- Budker Institute of Nuclear Physics, SB RAS
- A. R. Buzykaev
- Budker Institute of Nuclear Physics, SB RAS
- P. B. Cheblakov
- Budker Institute of Nuclear Physics, SB RAS
- V. L. Dorohov
- Budker Institute of Nuclear Physics, SB RAS
- F. A. Emanov
- Budker Institute of Nuclear Physics, SB RAS
- V. V. Gambaryan
- Budker Institute of Nuclear Physics, SB RAS
- D. N. Grigoriev
- Budker Institute of Nuclear Physics, SB RAS
- V. V. Kaminskiy
- Budker Institute of Nuclear Physics, SB RAS
- S. E. Karnaev
- Budker Institute of Nuclear Physics, SB RAS
- G. V. Karpov
- Budker Institute of Nuclear Physics, SB RAS
- S. V. Karpov
- Budker Institute of Nuclear Physics, SB RAS
- K. Yu. Karukina
- Budker Institute of Nuclear Physics, SB RAS
- D. P. Kashtankin
- Budker Institute of Nuclear Physics, SB RAS
- P. V. Kasyanenko
- Budker Institute of Nuclear Physics, SB RAS
- A. A. Katcin
- Budker Institute of Nuclear Physics, SB RAS
- T. A. Kharlamova
- Budker Institute of Nuclear Physics, SB RAS
- V. A. Kiselev
- Budker Institute of Nuclear Physics, SB RAS
- S. A. Kononov
- Budker Institute of Nuclear Physics, SB RAS
- A. A. Krasnov
- Budker Institute of Nuclear Physics, SB RAS
- E. A. Kravchenko
- Budker Institute of Nuclear Physics, SB RAS
- V. N. Kudryavtsev
- Budker Institute of Nuclear Physics, SB RAS
- V. F. Kulikov
- Budker Institute of Nuclear Physics, SB RAS
- I. A. Kuyanov
- Budker Institute of Nuclear Physics, SB RAS
- E. B. Levichev
- Budker Institute of Nuclear Physics, SB RAS
- P. V. Logachev
- Budker Institute of Nuclear Physics, SB RAS
- D. A. Maksimov
- Budker Institute of Nuclear Physics, SB RAS
- Yu. I. Maltseva
- Budker Institute of Nuclear Physics, SB RAS
- V. M. Malyshev
- Budker Institute of Nuclear Physics, SB RAS
- A. L. Maslennikov
- Budker Institute of Nuclear Physics, SB RAS
- O. I. Meshkov
- Budker Institute of Nuclear Physics, SB RAS
- S. I. Mishnev
- Budker Institute of Nuclear Physics, SB RAS
- I. A. Morozov
- Budker Institute of Nuclear Physics, SB RAS
- I. I. Morozov
- Budker Institute of Nuclear Physics, SB RAS
- D. A. Nikiforov
- Budker Institute of Nuclear Physics, SB RAS
- S. A. Nikitin
- Budker Institute of Nuclear Physics, SB RAS
- I. B. Nikolaev
- Budker Institute of Nuclear Physics, SB RAS
- I. N. Okunev
- Budker Institute of Nuclear Physics, SB RAS
- S. B. Oreshkin
- Budker Institute of Nuclear Physics, SB RAS
- A. A. Osipov
- Budker Institute of Nuclear Physics, SB RAS
- I. V. Ovtin
- Budker Institute of Nuclear Physics, SB RAS
- A. V. Pavlenko
- Budker Institute of Nuclear Physics, SB RAS
- S. V. Peleganchuk
- Budker Institute of Nuclear Physics, SB RAS
- P. A. Piminov
- Budker Institute of Nuclear Physics, SB RAS
- N. A. Podgornov
- Budker Institute of Nuclear Physics, SB RAS
- V. G. Prisekin
- Budker Institute of Nuclear Physics, SB RAS
- O. L. Rezanova
- Budker Institute of Nuclear Physics, SB RAS
- A. A. Ruban
- Budker Institute of Nuclear Physics, SB RAS
- G. A. Savinov
- Budker Institute of Nuclear Physics, SB RAS
- A. G. Shamov
- Budker Institute of Nuclear Physics, SB RAS
- L. I. Shekhtman
- Budker Institute of Nuclear Physics, SB RAS
- D. A. Shvedov
- Budker Institute of Nuclear Physics, SB RAS
- B. A. Shwartz
- Budker Institute of Nuclear Physics, SB RAS
- E. A. Simonov
- Budker Institute of Nuclear Physics, SB RAS
- S. V. Sinyatkin
- Budker Institute of Nuclear Physics, SB RAS
- A. N. Skrinsky
- Budker Institute of Nuclear Physics, SB RAS
- A. V. Sokolov
- Budker Institute of Nuclear Physics, SB RAS
- E. V. Starostina
- Budker Institute of Nuclear Physics, SB RAS
- D. P. Sukhanov
- Budker Institute of Nuclear Physics, SB RAS
- A. M. Sukharev
- Budker Institute of Nuclear Physics, SB RAS
- A. A. Talyshev
- Budker Institute of Nuclear Physics, SB RAS
- V. A. Tayursky
- Budker Institute of Nuclear Physics, SB RAS
- V. I. Telnov
- Budker Institute of Nuclear Physics, SB RAS
- Yu. A. Tikhonov
- Budker Institute of Nuclear Physics, SB RAS
- K. Yu. Todyshev
- Budker Institute of Nuclear Physics, SB RAS
- A. G. Tribendis
- Budker Institute of Nuclear Physics, SB RAS
- G. M. Tumaikin
- Budker Institute of Nuclear Physics, SB RAS
- Yu. V. Usov
- Budker Institute of Nuclear Physics, SB RAS
- A. I. Vorobiov
- Budker Institute of Nuclear Physics, SB RAS
- V. N. Zhilich
- Budker Institute of Nuclear Physics, SB RAS
- A. A. Zhukov
- Budker Institute of Nuclear Physics, SB RAS
- V. V. Zhulanov
- Budker Institute of Nuclear Physics, SB RAS
- A. N. Zhuravlev
- Budker Institute of Nuclear Physics, SB RAS
- DOI
- https://doi.org/10.1007/JHEP06(2023)196
- Journal volume & issue
-
Vol. 2023,
no. 6
pp. 1 – 19
Abstract
Abstract We present the study of the decay J/ψ → ρπ. The results are based on of 5.2 million J/ψ events collected by the KEDR detector at the VEPP-4M collider. The branching fractions are measured to be B $$ \mathcal{B} $$ (J/ψ → ρπ) = (2.072 ± 0.017 ± 0.062) ∙ 10 −2 and B $$ \mathcal{B} $$ (J/ψ → π + π − π 0) = (1.878 ± 0.013 ± 0.051) ∙ 10 −2, where the first uncertainties are statistical and the second systematic. Our results are more precise than the previous relative measurements.
Keywords
