First Measurement of the Total Neutron Cross Section on Argon between 100 and 800 MeV

CAPTAIN Collaboration

doi:10.1103/PhysRevLett.123.042502

First Measurement of the Total Neutron Cross Section on Argon between 100 and 800 MeV

CAPTAIN Collaboration

Physics and Astronomy

University of Houston
University of California at Irvine
University of California at Davis
University of Pennsylvania
Brookhaven National Laboratory
University of California at Los Angeles
New Mexico State University
Los Alamos National Laboratory
Stony Brook University
University of Alabama
Lawrence Berkeley National Laboratory
University of New Mexico
Boston University
University of Hawai'i at Mānoa
Louisiana State University

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

We report the first measurement of the neutron cross section on argon in the energy range of 100-800 MeV. The measurement was obtained with a 4.3-h exposure of the Mini-CAPTAIN detector to the WNR/LANSCE beam at LANL. The total cross section is measured from the attenuation coefficient of the neutron flux as it traverses the liquid argon volume. A set of 2631 candidate interactions is divided in bins of the neutron kinetic energy calculated from time-of-flight measurements. These interactions are reconstructed with custom-made algorithms specifically designed for the data in a time projection chamber the size of the Mini-CAPTAIN detector. The energy averaged cross section is 0.91±0.10(stat)±0.09(syst) b. A comparison of the measured cross section is made to the GEANT4 and FLUKA event generator packages, where the energy averaged cross sections in this range are 0.60 and 0.68 b, respectively.

Original language	English
Article number	042502
Journal	Physical Review Letters
Volume	123
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.123.042502
State	Published - Jul 26 2019

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10.1103/PhysRevLett.123.042502

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@article{65035e294c284bd593c9f0016417e3f0,

title = "First Measurement of the Total Neutron Cross Section on Argon between 100 and 800 MeV",

abstract = "We report the first measurement of the neutron cross section on argon in the energy range of 100-800 MeV. The measurement was obtained with a 4.3-h exposure of the Mini-CAPTAIN detector to the WNR/LANSCE beam at LANL. The total cross section is measured from the attenuation coefficient of the neutron flux as it traverses the liquid argon volume. A set of 2631 candidate interactions is divided in bins of the neutron kinetic energy calculated from time-of-flight measurements. These interactions are reconstructed with custom-made algorithms specifically designed for the data in a time projection chamber the size of the Mini-CAPTAIN detector. The energy averaged cross section is 0.91±0.10(stat)±0.09(syst) b. A comparison of the measured cross section is made to the GEANT4 and FLUKA event generator packages, where the energy averaged cross sections in this range are 0.60 and 0.68 b, respectively.",

author = "\{CAPTAIN Collaboration\} and B. Bhandari and J. Bian and K. Bilton and C. Callahan and J. Chaves and H. Chen and D. Cline and Cooper, \{R. L.\} and D. Danielson and J. Danielson and N. Dokania and S. Elliott and S. Fernandes and S. Gardiner and G. Garvey and V. Gehman and F. Giuliani and S. Glavin and M. Gold and C. Grant and E. Guardincerri and T. Haines and A. Higuera and Ji, \{J. Y.\} and R. Kadel and N. Kamp and A. Karlin and W. Ketchum and Koerner, \{L. W.\} and D. Lee and K. Lee and Q. Liu and S. Locke and Louis, \{W. C.\} and A. Manalaysay and J. Maricic and E. Martin and Martinez, \{M. J.\} and S. Martynenko and C. Mauger and C. McGrew and J. Medina and Medina, \{P. J.\} and A. Mills and G. Mills and J. Mirabal-Martinez and A. Olivier and E. Pantic and B. Philipbar and C. Pitcher",

note = "Publisher Copyright: {\textcopyright} 2019 authors. Published by the American Physical Society.",

year = "2019",

month = jul,

day = "26",

doi = "10.1103/PhysRevLett.123.042502",

language = "English",

volume = "123",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "4",

}

TY - JOUR

T1 - First Measurement of the Total Neutron Cross Section on Argon between 100 and 800 MeV

AU - CAPTAIN Collaboration

AU - Bhandari, B.

AU - Bian, J.

AU - Bilton, K.

AU - Callahan, C.

AU - Chaves, J.

AU - Chen, H.

AU - Cline, D.

AU - Cooper, R. L.

AU - Danielson, D.

AU - Danielson, J.

AU - Dokania, N.

AU - Elliott, S.

AU - Fernandes, S.

AU - Gardiner, S.

AU - Garvey, G.

AU - Gehman, V.

AU - Giuliani, F.

AU - Glavin, S.

AU - Gold, M.

AU - Grant, C.

AU - Guardincerri, E.

AU - Haines, T.

AU - Higuera, A.

AU - Ji, J. Y.

AU - Kadel, R.

AU - Kamp, N.

AU - Karlin, A.

AU - Ketchum, W.

AU - Koerner, L. W.

AU - Lee, D.

AU - Lee, K.

AU - Liu, Q.

AU - Locke, S.

AU - Louis, W. C.

AU - Manalaysay, A.

AU - Maricic, J.

AU - Martin, E.

AU - Martinez, M. J.

AU - Martynenko, S.

AU - Mauger, C.

AU - McGrew, C.

AU - Medina, J.

AU - Medina, P. J.

AU - Mills, A.

AU - Mills, G.

AU - Mirabal-Martinez, J.

AU - Olivier, A.

AU - Pantic, E.

AU - Philipbar, B.

AU - Pitcher, C.

PY - 2019/7/26

Y1 - 2019/7/26

N2 - We report the first measurement of the neutron cross section on argon in the energy range of 100-800 MeV. The measurement was obtained with a 4.3-h exposure of the Mini-CAPTAIN detector to the WNR/LANSCE beam at LANL. The total cross section is measured from the attenuation coefficient of the neutron flux as it traverses the liquid argon volume. A set of 2631 candidate interactions is divided in bins of the neutron kinetic energy calculated from time-of-flight measurements. These interactions are reconstructed with custom-made algorithms specifically designed for the data in a time projection chamber the size of the Mini-CAPTAIN detector. The energy averaged cross section is 0.91±0.10(stat)±0.09(syst) b. A comparison of the measured cross section is made to the GEANT4 and FLUKA event generator packages, where the energy averaged cross sections in this range are 0.60 and 0.68 b, respectively.

AB - We report the first measurement of the neutron cross section on argon in the energy range of 100-800 MeV. The measurement was obtained with a 4.3-h exposure of the Mini-CAPTAIN detector to the WNR/LANSCE beam at LANL. The total cross section is measured from the attenuation coefficient of the neutron flux as it traverses the liquid argon volume. A set of 2631 candidate interactions is divided in bins of the neutron kinetic energy calculated from time-of-flight measurements. These interactions are reconstructed with custom-made algorithms specifically designed for the data in a time projection chamber the size of the Mini-CAPTAIN detector. The energy averaged cross section is 0.91±0.10(stat)±0.09(syst) b. A comparison of the measured cross section is made to the GEANT4 and FLUKA event generator packages, where the energy averaged cross sections in this range are 0.60 and 0.68 b, respectively.

UR - https://www.scopus.com/pages/publications/85069965208

U2 - 10.1103/PhysRevLett.123.042502

DO - 10.1103/PhysRevLett.123.042502

M3 - Article

C2 - 31491269

AN - SCOPUS:85069965208

SN - 0031-9007

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

M1 - 042502

ER -

First Measurement of the Total Neutron Cross Section on Argon between 100 and 800 MeV

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