Measurement of neutrino and antineutrino neutral-current quasielasticlike interactions on oxygen by detecting nuclear deexcitation gamma rays
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Neutrino- and antineutrino-oxygen neutral-current quasielasticlike interactions are measured at Super-Kamiokande using nuclear deexcitation
γ
rays to identify signal-like interactions in data from a
14.94
(
16.35
)
×
10
20
protons-on-target exposure of the T2K neutrino (antineutrino) beam. The measured flux-averaged cross sections on oxygen nuclei are
⟨
σ
ν
−
NCQE
⟩
=
1.70
±
0.17
(
stat
.
)
+
0.51
−
0.38
(
syst
.
)
×
10
−
38
cm
2
/
oxygen
with a flux-averaged energy of 0.82 GeV and
⟨
σ
¯
ν
−
NCQE
⟩
=
0.98
±
0.16
(
stat
.
)
+
0.26
−
0.19
(
syst
.
)
×
10
−
38
cm
2
/
oxygen
with a flux-averaged energy of 0.68 GeV, for neutrinos and antineutrinos, respectively. These results are the most precise to date, and the antineutrino result is the first cross section measurement of this channel. They are compared with various theoretical predictions. The impact on evaluation of backgrounds to searches for supernova relic neutrinos at present and future water Cherenkov detectors is also discussed.
γ
rays to identify signal-like interactions in data from a
14.94
(
16.35
)
×
10
20
protons-on-target exposure of the T2K neutrino (antineutrino) beam. The measured flux-averaged cross sections on oxygen nuclei are
⟨
σ
ν
−
NCQE
⟩
=
1.70
±
0.17
(
stat
.
)
+
0.51
−
0.38
(
syst
.
)
×
10
−
38
cm
2
/
oxygen
with a flux-averaged energy of 0.82 GeV and
⟨
σ
¯
ν
−
NCQE
⟩
=
0.98
±
0.16
(
stat
.
)
+
0.26
−
0.19
(
syst
.
)
×
10
−
38
cm
2
/
oxygen
with a flux-averaged energy of 0.68 GeV, for neutrinos and antineutrinos, respectively. These results are the most precise to date, and the antineutrino result is the first cross section measurement of this channel. They are compared with various theoretical predictions. The impact on evaluation of backgrounds to searches for supernova relic neutrinos at present and future water Cherenkov detectors is also discussed.
Date Issued
2019-12-30
Date Acceptance
2019-12-01
Citation
Physical Review D: Particles, Fields, Gravitation and Cosmology, 2019, 100 (12), pp.1-19
ISSN
1550-2368
Publisher
American Physical Society
Start Page
1
End Page
19
Journal / Book Title
Physical Review D: Particles, Fields, Gravitation and Cosmology
Volume
100
Issue
12
Copyright Statement
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Sponsor
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000504866300001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
ST/K001604/1
ST/S001174/4
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
MAGNETIC HORN SYSTEM
CALIBRATION
EXCITATION
DESIGN
PROTON
Publication Status
Published
Article Number
ARTN 112009
Date Publish Online
2019-12-30