• Open Access

Studies of quantum-mechanical coherency effects in neutrino-nucleus elastic scattering

V. Sharma, L. Singh, H. T. Wong, M. Agartioglu, J.-W. Chen, M. Deniz, S. Kerman, H. B. Li, C.-P. Liu, K. Saraswat, M. K. Singh, and V. Singh (TEXONO Collaboration)
Phys. Rev. D 103, 092002 – Published 7 May 2021

Abstract

Neutrino-nucleus elastic scattering (νAel) provides a unique laboratory to study the quantum-mechanical (QM) coherency effects in electroweak interactions. The deviations of the cross sections from those of completely coherent systems can be quantitatively characterized through a coherency parameter α(q2). The relations between α and the underlying nuclear physics in terms of nuclear form factors are derived. The dependence of cross section on α(q2) for the various neutrino sources is presented. The α(q2) values are evaluated from the measured data of the COHERENT CsI and Ar experiments. Complete coherency and decoherency conditions are excluded by the CsI data with p=0.004 at q2=3.1×103MeV2 and p=0.016 at q2=2.3×103MeV2, respectively, verifying that both QM superpositions and nuclear many-body effects contribute to νAel interactions.

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  • Received 14 October 2020
  • Revised 1 March 2021
  • Accepted 12 April 2021

DOI:https://doi.org/10.1103/PhysRevD.103.092002

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. 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.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

V. Sharma1,2, L. Singh1,3, H. T. Wong1,*, M. Agartioglu1,4,5, J.-W. Chen6, M. Deniz4, S. Kerman4,†, H. B. Li1, C.-P. Liu5, K. Saraswat1, M. K. Singh1,2, and V. Singh2,3 (TEXONO Collaboration)

  • 1Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
  • 2Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
  • 3Department of Physics, School of Physical and Chemical Sciences, Central University of South Bihar, Gaya 824236, India
  • 4Department of Physics, Dokuz Eylül University, Buca, İzmir 35160, Turkey
  • 5Department of Physics, National Dong Hwa University, Shoufeng, Hualien 97401, Taiwan
  • 6Department of Physics, CTS and LeCosPA, National Taiwan University, Taipei 10617, Taiwan

  • *Corresponding author. htwong@phys.sinica.edu.tw
  • Deceased.

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Vol. 103, Iss. 9 — 1 May 2021

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