PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Poster Session
Kaon production in the charged-current neutrino interactions in the T2K near detector
K. Kowalik
Full text: pdf
Pre-published on: November 19, 2022
Published on:
Abstract
Studies of kaon production in accelerator-based neutrino experiments provide an important constraint on a $K^+$ production by atmospheric neutrinos in proton decay searches. Current neutrino-nucleus event generators largely rely on theoretical models for the descriptions of backgrounds due to kaons and need to be verified by measurements.


At neutrino energies below 2 GeV, the event rate for processes with a $K^+$ production is low as compared to pion production channels because of Cabibbo suppression and the relatively large kaon mass.
At higher neutrino energies, a different production mechanism dominates, where $K^+$ is always accompanied by another strange particle to conserve the strangeness.

T2K searches for charged-current neutrino interactions that produce a $K^+$ in the final state in the
Fine Grained Detector, a scintillator-based tracking calorimeter, within the T2K near detector ND280. Events with a $K^+$ are identified in T2K by studying the energy deposition of tracks in the Time Projection Chamber.
These proceedings discuss the $K^+$ sample selection together with the method used to estimate the backgrounds and evaluate a single-bin cross section.
DOI: https://doi.org/10.22323/1.414.0999
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.