European Physical Journal C: Particles and Fields (Jul 2019)
Measurement of the $$K^+\rightarrow {\mu ^+}{\nu _{\mu }}{\gamma }$$ K+→μ+νμγ decay form factors in the OKA experiment
- V. I. Kravtsov,
- S. A. Akimenko,
- A. V. Artamonov,
- A. M. Blik,
- V. S. Burtovoy,
- V. N. Bychkov,
- S. V. Donskov,
- V. A. Duk,
- A. P. Filin,
- S. N. Filippov,
- A. M. Gorin,
- E. N. Gushchin,
- A. V. Inyakin,
- G. D. Kekelidze,
- G. V. Khaustov,
- S. A. Kholodenko,
- A. A. Khudyakov,
- V. N. Kolosov,
- Yu. G. Kudenko,
- V. F. Kurshetsov,
- V. A. Lishin,
- V. M. Lysan,
- M. V. Medynsky,
- Yu. V. Mikhailov,
- V. F. Obraztsov,
- V. A. Polyakov,
- A. Yu. Polyarush,
- A. V. Popov,
- V. I. Romanovsky,
- V. I. Rykalin,
- A. S. Sadovsky,
- V. D. Samoilenko,
- V. K. Semenov,
- M. M. Shapkin,
- O. V. Stenyakin,
- O. G. Tchikilev,
- V. A. Uvarov,
- O. P. Yushchenko,
- B. Zh. Zalikhanov
Affiliations
- V. I. Kravtsov
- Institute for Nuclear Research of the Russian Academy of Sciences
- S. A. Akimenko
- NRC “Kurchatov Institute”-IHEP
- A. V. Artamonov
- NRC “Kurchatov Institute”-IHEP
- A. M. Blik
- NRC “Kurchatov Institute”-IHEP
- V. S. Burtovoy
- NRC “Kurchatov Institute”-IHEP
- V. N. Bychkov
- Joint Institute of Nuclear Research
- S. V. Donskov
- NRC “Kurchatov Institute”-IHEP
- V. A. Duk
- Institute for Nuclear Research of the Russian Academy of Sciences
- A. P. Filin
- NRC “Kurchatov Institute”-IHEP
- S. N. Filippov
- Institute for Nuclear Research of the Russian Academy of Sciences
- A. M. Gorin
- NRC “Kurchatov Institute”-IHEP
- E. N. Gushchin
- Institute for Nuclear Research of the Russian Academy of Sciences
- A. V. Inyakin
- NRC “Kurchatov Institute”-IHEP
- G. D. Kekelidze
- Joint Institute of Nuclear Research
- G. V. Khaustov
- NRC “Kurchatov Institute”-IHEP
- S. A. Kholodenko
- NRC “Kurchatov Institute”-IHEP
- A. A. Khudyakov
- Institute for Nuclear Research of the Russian Academy of Sciences
- V. N. Kolosov
- NRC “Kurchatov Institute”-IHEP
- Yu. G. Kudenko
- Institute for Nuclear Research of the Russian Academy of Sciences
- V. F. Kurshetsov
- NRC “Kurchatov Institute”-IHEP
- V. A. Lishin
- NRC “Kurchatov Institute”-IHEP
- V. M. Lysan
- Joint Institute of Nuclear Research
- M. V. Medynsky
- NRC “Kurchatov Institute”-IHEP
- Yu. V. Mikhailov
- NRC “Kurchatov Institute”-IHEP
- V. F. Obraztsov
- NRC “Kurchatov Institute”-IHEP
- V. A. Polyakov
- NRC “Kurchatov Institute”-IHEP
- A. Yu. Polyarush
- Institute for Nuclear Research of the Russian Academy of Sciences
- A. V. Popov
- NRC “Kurchatov Institute”-IHEP
- V. I. Romanovsky
- NRC “Kurchatov Institute”-IHEP
- V. I. Rykalin
- NRC “Kurchatov Institute”-IHEP
- A. S. Sadovsky
- NRC “Kurchatov Institute”-IHEP
- V. D. Samoilenko
- NRC “Kurchatov Institute”-IHEP
- V. K. Semenov
- NRC “Kurchatov Institute”-IHEP
- M. M. Shapkin
- NRC “Kurchatov Institute”-IHEP
- O. V. Stenyakin
- NRC “Kurchatov Institute”-IHEP
- O. G. Tchikilev
- NRC “Kurchatov Institute”-IHEP
- V. A. Uvarov
- NRC “Kurchatov Institute”-IHEP
- O. P. Yushchenko
- NRC “Kurchatov Institute”-IHEP
- B. Zh. Zalikhanov
- Joint Institute of Nuclear Research
- DOI
- https://doi.org/10.1140/epjc/s10052-019-7145-1
- Journal volume & issue
-
Vol. 79,
no. 7
pp. 1 – 6
Abstract
Abstract A precise measurement of the vector and axial-vector form factors difference $$F_V-F_A$$ FV-FA in the $$K^+\rightarrow {\mu ^+}{\nu _{\mu }}{\gamma }$$ K+→μ+νμγ decay is presented. About 95K events of $$K^+\rightarrow {\mu ^+}{\nu _{\mu }}{\gamma }$$ K+→μ+νμγ are selected in the OKA experiment. The result is $$F_V-F_A=0.134\pm 0.021(stat)\pm 0.027(syst)$$ FV-FA=0.134±0.021(stat)±0.027(syst) . Both errors are smaller than in the previous $$F_V-F_A$$ FV-FA measurements.
