arXiv · 2210.15535
Measurement of T-odd asymmetry in radiative K+ -> pi0 e+ nu gamma decay using OKA detector
Abstract
The paper presents a measurement of the T-odd correlation in radiation decay \boldmath $K^+ \rightarrow \pi^{0} e^{+} \nu_{e} \gamma $ performed on the installation of the 101200 candidate events of the investigated decay were identified. Measured correlation $\xi_{\pi e \gamma}$ -is a mixed product of moments $e^{+}$, $\pi^{0}$, $\gamma$ in the kaon rest system, normalized by $M^{3}_{K}$. To assess the asymmetry of the distribution by $\xi_{\pi e \gamma}$ the value used is $A_{\xi}= \frac {N_{+}-N_{-}} {N_{+}+N_{-}}$, where $N_{+(-)}$ is the number of events with $\xi$ greater than (less than) zero. For the $A_{\xi}$ asymmetry, the value is obtained $A_{\xi} = (+0.1 \pm 3.9($stat.$) \pm1.7($syst.$))\times10^{-3}$ or $|A_{\xi}| < 5.4\times10^{-3} (90\%~ CL)$
Explore related subjects
Keep this discovery
A. Yu. Polyarush, S. A. Akimenko, A. V. Artamonov, V. N. Bychkov, S. V. Donskov, V. A. Duka, A. V. Inyakin, A. M. Gorin, E. N. Gushchin, A. P. Filin, S. N. Filippov, G. D. Kekelidze, V. N. Kolosov, V. I. Kravtsov, G. V. Khaustov, S. A. Kholodenko, A. A. Khudyakov, Yu. G. Kudenko, A. V. Kulik, V. F. Kurshetsov, V. A. Lishin, V. M. Lysan, M. V. Medynsky, V. F. Obraztsov, A. V. Ohotnikov, V. A. Polyakov, V. I. Romanovsky, V. I. Rykalin, A. S. Sadovsky, V. D. Samoilenko, I. S. Tyurin, O. G. Tchikilev, V. A. Uvarov, O. P. Yushchenko, B. Zh. Zalikhanov. 2022-10-27. Measurement of T-odd asymmetry in radiative K+ -> pi0 e+ nu gamma decay using OKA detector. https://doi.org/10.1134/s0021364022602184
Cite the original work for its findings. Save a collection to share your selection of sources.