A large-volume detector capable of charged-particle tracking

Tayloe, R.; Meyer, H. O.; Cox, Dorothy; Doskow, J.; Ferguson, A.T.G.; Katori, T.; Novák, M.; Passmore, D.

doi:10.1016/j.nima.2006.03.023

Cited by 11 publications

(6 citation statements)

References 3 publications

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“…The neutron scatter camera took data at several positions in Neutrino Alley. In addition, ancillary measurements were performed with the complementary SciBath detector [72,76,77] (Fig. 8(b)), a liquidscintillator tracking detector.…”

Section: Neutron Backgroundsmentioning

confidence: 99%

COHERENT 2018 at the Spallation Neutron Source

Barbeau¹,

Efremenko²,

Scholberg³

2018

Preprint

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collaboration is deploying four detector technologies: a CsI[Na] scintillating crystal, p-type pointcontact germanium detectors, single-phase liquid argon, and NaI[Tl] crystals. All detectors are located in the neutron-quiet basement of the SNS target building at distances 20-30 m from the SNS neutrino source. The simultaneous measurement in all four COHERENT detector subsystems will test the N 2 dependence of the cross section and search for new physics. In addition, COHERENT is measuring neutrino-induced neutrons from charged-and neutral-current neutrino interactions on nuclei in shielding materials, which represent a non-negligible background for CEvNS as well as being of intrinsic interest. The Collaboration is planning as well to look for charged-current interactions of relevance to supernova and weak-interaction physics. This document describes concisely the COHERENT physics motivations, sensitivity and next plans for measurements at the SNS to be accomplished on a few-year timescale.

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Section: Neutron Backgroundsmentioning

confidence: 99%

COHERENT 2018 at the Spallation Neutron Source

Barbeau¹,

Efremenko²,

Scholberg³

2018

Preprint

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“…Though this beam-related neutron (BRN) rate is highly suppressed in Neutrino Alley, the events occur in time with the beam, and the rate competes with the CEvNS rate in the detector. The BRN flux was measured with the SciBath neutron detector [48,49] at the current CENNS-10 location in late 2015, and further studied with a CENNS-10 engineering run [36]. These results constrain the BRN rate within the beam-coincident time window and reveal no evidence of BRN outside of this window.…”

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confidence: 99%

First Measurement of Coherent Elastic Neutrino-Nucleus Scattering on Argon

Akimov,

Albert,

et al. 2020

Preprint

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We report the first detection of coherent elastic neutrino-nucleus scattering (CEvNS) on argon using the CENNS-10 liquid argon detector at the Oak Ridge National Laboratory Spallation Neutron Source. Two independent analyses prefer CEvNS over the background-only null hypothesis with greater than 3σ significance. The measured cross section, averaged over the incident neutrino flux, is (2.2 ± 0.7) ×10 −39 cm 2 -consistent with the standard model prediction. This is the lightest nucleus for which CEvNS has been observed, which allows us to verify the expected neutron-number dependence of the cross section and to better constrain non-standard neutrino interactions.

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“…The neutron scatter camera will be positioned at a specific location near the expected CsI and Ge detectors, and a significantly larger sample of data will be recorded, which will permit a refinement of the measured background contributions in the delayed window. In addition, ancillary measurements are planned with the complementary SciBath detector [52,56,57], a liquid-scintillator tracking detector, deployed a few meters from the neutron scatter camera for a simultaneous measurement. The combination of the two provides a systematic cross-check, increasing confidence in the understanding of the neutron background energy spectra.…”

Section: B Background Studiesmentioning

confidence: 99%

The COHERENT Experiment at the Spallation Neutron Source

Collaboration¹,

Akimov²,

An³

et al. 2015

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Note there exist a number of abbreviations for this process in the literature, e.g., CNS, CNNS, CENNS. We favor a version with "E" for "elastic" to distinguish the process from inelastic coherent pion production, which is commonly confused with CEvNS by members of the high energy physics community. We prefer to replace the first "N" with "v", for "neutrino", for two reasons: first, "NN" means "nucleon-nucleon" to many in the nuclear physics community. Second, this disambiguates from CENNS, which is the name of an experimental collaboration. Finally, the Roman letter "v" is less cumbersome than the Greek letter "ν".

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A large-volume detector capable of charged-particle tracking

Cited by 11 publications

References 3 publications

COHERENT 2018 at the Spallation Neutron Source

COHERENT 2018 at the Spallation Neutron Source

First Measurement of Coherent Elastic Neutrino-Nucleus Scattering on Argon

The COHERENT Experiment at the Spallation Neutron Source

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