Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Poster Session
New 2-ring $\nu_e$ CC1$\pi^+$ samples at the T2K Far Detector
Y.S. Prabhu
Full text: pdf
Supplementary files
Pre-published on: November 13, 2022
Published on:
Abstract
The Tokai-to-Kamioka (T2K) experiment is a long-baseline accelerator neutrino experiment in Japan that measures the leptonic CP-violating phase $\delta_{CP}$ by studying $\nu_e$ appearance from the $\nu_\mu$ beam at T2K's far detector, Super-Kamiokande (SK). The near detector (ND280) stands 280 metres, and SK stands 295 km away from the beam production target. SK is a 50 kton water-Cherenkov detector that observes Cherenkov rings from charged particles produced in neutrino interactions with water.
Both single and multi-ring samples for $\nu_\mu$ at SK are used in T2K's latest oscillation analyses, while for $\nu_e$, only single-ring samples are used. Charged current single $\pi^+$ (CC1$\pi^+$) events form the second most dominant signal events in $\nu_e$ appearance studies, of which events with $\pi^+$ below Cherenkov threshold are used in the latest analysis (1 $e$-like ring and a decay electron signature). The addition of the sample with $\pi^+$ above the Cherenkov threshold, consisting of an $e$-like ring and a $\pi^+$-like ring can increase the statistics of $\nu_e$ events and thus our sensitivity to $\delta_{CP}$. In this proceeding, cuts-based selection of these 2-ring $\nu_e$ CC1$\pi^+$ events will be discussed.
DOI: https://doi.org/10.22323/1.414.1160
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
{"ft_lang_label":"__label__en","ft_lang_prob":0.83183235,"math_prob":0.94979095,"size":1650,"snap":"2022-40-2023-06","text_gpt3_token_len":429,"char_repetition_ratio":0.10753342,"word_repetition_ratio":0.0,"special_character_ratio":0.26060605,"punctuation_ratio":0.08503401,"nsfw_num_words":0,"has_unicode_error":false,"math_prob_llama3":0.9763244,"pos_list":[0,1,2],"im_url_duplicate_count":[null,null,null],"WARC_HEADER":"{\"WARC-Type\":\"response\",\"WARC-Date\":\"2023-02-04T00:01:35Z\",\"WARC-Record-ID\":\"<urn:uuid:9478fe9b-5e6d-4f4b-bd68-1819e2bf9122>\",\"Content-Length\":\"11376\",\"Content-Type\":\"application/http; msgtype=response\",\"WARC-Warcinfo-ID\":\"<urn:uuid:57dffc1f-4add-4e5b-b5bc-36dc9674e59f>\",\"WARC-Concurrent-To\":\"<urn:uuid:a5d46f6a-0cb1-4d6f-b9c9-092e562209ce>\",\"WARC-IP-Address\":\"93.189.185.133\",\"WARC-Target-URI\":\"https://pos.sissa.it/414/1160/\",\"WARC-Payload-Digest\":\"sha1:MDNIPEWVFEWTLIMI7SF5BSAA5P52TVLW\",\"WARC-Block-Digest\":\"sha1:UEWTVGGIRJFS2S55FCVM5XWEVSYKWXIJ\",\"WARC-Identified-Payload-Type\":\"text/html\",\"warc_filename\":\"/cc_download/warc_2023/CC-MAIN-2023-06/CC-MAIN-2023-06_segments_1674764500076.87_warc_CC-MAIN-20230203221113-20230204011113-00806.warc.gz\"}"}