Measurement of the neutron electric to magnetic form factor ratio at Q2=1.58 GeV2 using the reaction He→3(e→,e′n)pp

B. S. Schlimme; P. Achenbach; C. A. Ayerbe Gayoso; J. C. Bernauer; R. Böhm; D. Bosnar; Th Challand; M. O. Distler; L. Doria; F. Fellenberger; H. Fonvieille; M. Gómez Rodríguez; P. Grabmayr; T. Hehl; W. Heil; D. Kiselev; J. Krimmer; M. Makek; H. Merkel; D. G. Middleton; U. Müller; L. Nungesser; B. A. Ott; J. Pochodzalla; M. Potokar; S. Sánchez Majos; M. M. Sargsian; I. Sick; S. Širca; M. Weinriefer; M. Wendel; C. J. Yoon

doi:10.1103/PhysRevLett.111.132504

Measurement of the neutron electric to magnetic form factor ratio at Q2=1.58 GeV2 using the reaction He→3(e→,e^′n)pp

B. S. Schlimme
, P. Achenbach
, C. A. Ayerbe Gayoso
, J. C. Bernauer
, R. Böhm
, D. Bosnar
, Th Challand
, M. O. Distler
, L. Doria
, F. Fellenberger
, H. Fonvieille
, M. Gómez Rodríguez
, P. Grabmayr
, T. Hehl
, W. Heil
, D. Kiselev
, J. Krimmer
, M. Makek
, H. Merkel
, D. G. Middleton

U. Müller, L. Nungesser, B. A. Ott, J. Pochodzalla, M. Potokar, S. Sánchez Majos, M. M. Sargsian, I. Sick, S. Širca, M. Weinriefer, M. Wendel, C. J. Yoon

Physics and Astronomy

Johannes Gutenberg University Mainz
University of Zagreb
University of Basel
Université Clermont Auvergne
University of Tübingen
Paul Scherrer Institute
Universite Claude Bernard Lyon 1
Jožef Stefan Institute
Florida International University
University of Ljubljana

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

30 Scopus citations

Abstract

A measurement of beam helicity asymmetries in the reaction He→3(e→,e^′n)pp is performed at the Mainz Microtron in quasielastic kinematics to determine the electric to magnetic form factor ratio of the neutron GEn/GMn at a four-momentum transfer Q2=1.58 GeV2. Longitudinally polarized electrons are scattered on a highly polarized He3 gas target. The scattered electrons are detected with a high-resolution magnetic spectrometer, and the ejected neutrons are detected with a dedicated neutron detector composed of scintillator bars. To reduce systematic errors, data are taken for four different target polarization orientations allowing the determination of GEn/GMn from a double ratio. We find μ_nGEn/GMn=0.250±0.058(stat) ±0.017(syst).

Original language	English
Article number	132504
Journal	Physical Review Letters
Volume	111
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.111.132504
State	Published - Sep 26 2013

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Schlimme, B. S., Achenbach, P., Ayerbe Gayoso, C. A., Bernauer, J. C., Böhm, R., Bosnar, D., Challand, T., Distler, M. O., Doria, L., Fellenberger, F., Fonvieille, H., Gómez Rodríguez, M., Grabmayr, P., Hehl, T., Heil, W., Kiselev, D., Krimmer, J., Makek, M., Merkel, H., ... Yoon, C. J. (2013). Measurement of the neutron electric to magnetic form factor ratio at Q2=1.58 GeV2 using the reaction He→3(e→,e^′n)pp. Physical Review Letters, 111(13), Article 132504. https://doi.org/10.1103/PhysRevLett.111.132504

@article{eddf05aa70af4e518ada28cdc935ad76,

title = "Measurement of the neutron electric to magnetic form factor ratio at Q2=1.58 GeV2 using the reaction He→3(e→,e′n)pp",

abstract = "A measurement of beam helicity asymmetries in the reaction He→3(e→,e′n)pp is performed at the Mainz Microtron in quasielastic kinematics to determine the electric to magnetic form factor ratio of the neutron GEn/GMn at a four-momentum transfer Q2=1.58 GeV2. Longitudinally polarized electrons are scattered on a highly polarized He3 gas target. The scattered electrons are detected with a high-resolution magnetic spectrometer, and the ejected neutrons are detected with a dedicated neutron detector composed of scintillator bars. To reduce systematic errors, data are taken for four different target polarization orientations allowing the determination of GEn/GMn from a double ratio. We find μnGEn/GMn=0.250±0.058(stat) ±0.017(syst).",

author = "Schlimme, \{B. S.\} and P. Achenbach and \{Ayerbe Gayoso\}, \{C. A.\} and Bernauer, \{J. C.\} and R. B{\"o}hm and D. Bosnar and Th Challand and Distler, \{M. O.\} and L. Doria and F. Fellenberger and H. Fonvieille and \{G{\'o}mez Rodr{\'i}guez\}, M. and P. Grabmayr and T. Hehl and W. Heil and D. Kiselev and J. Krimmer and M. Makek and H. Merkel and Middleton, \{D. G.\} and U. M{\"u}ller and L. Nungesser and Ott, \{B. A.\} and J. Pochodzalla and M. Potokar and \{S{\'a}nchez Majos\}, S. and Sargsian, \{M. M.\} and I. Sick and S. {\v S}irca and M. Weinriefer and M. Wendel and Yoon, \{C. J.\}",

year = "2013",

month = sep,

day = "26",

doi = "10.1103/PhysRevLett.111.132504",

language = "English",

volume = "111",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "13",

}

Schlimme, BS, Achenbach, P, Ayerbe Gayoso, CA, Bernauer, JC, Böhm, R, Bosnar, D, Challand, T, Distler, MO, Doria, L, Fellenberger, F, Fonvieille, H, Gómez Rodríguez, M, Grabmayr, P, Hehl, T, Heil, W, Kiselev, D, Krimmer, J, Makek, M, Merkel, H, Middleton, DG, Müller, U, Nungesser, L, Ott, BA, Pochodzalla, J, Potokar, M, Sánchez Majos, S, Sargsian, MM, Sick, I, Širca, S, Weinriefer, M, Wendel, M & Yoon, CJ 2013, 'Measurement of the neutron electric to magnetic form factor ratio at Q2=1.58 GeV2 using the reaction He→3(e→,e^′n)pp', Physical Review Letters, vol. 111, no. 13, 132504. https://doi.org/10.1103/PhysRevLett.111.132504

TY - JOUR

T1 - Measurement of the neutron electric to magnetic form factor ratio at Q2=1.58 GeV2 using the reaction He→3(e→,e′n)pp

AU - Schlimme, B. S.

AU - Achenbach, P.

AU - Ayerbe Gayoso, C. A.

AU - Bernauer, J. C.

AU - Böhm, R.

AU - Bosnar, D.

AU - Challand, Th

AU - Distler, M. O.

AU - Doria, L.

AU - Fellenberger, F.

AU - Fonvieille, H.

AU - Gómez Rodríguez, M.

AU - Grabmayr, P.

AU - Hehl, T.

AU - Heil, W.

AU - Kiselev, D.

AU - Krimmer, J.

AU - Makek, M.

AU - Merkel, H.

AU - Middleton, D. G.

AU - Müller, U.

AU - Nungesser, L.

AU - Ott, B. A.

AU - Pochodzalla, J.

AU - Potokar, M.

AU - Sánchez Majos, S.

AU - Sargsian, M. M.

AU - Sick, I.

AU - Širca, S.

AU - Weinriefer, M.

AU - Wendel, M.

AU - Yoon, C. J.

PY - 2013/9/26

Y1 - 2013/9/26

N2 - A measurement of beam helicity asymmetries in the reaction He→3(e→,e′n)pp is performed at the Mainz Microtron in quasielastic kinematics to determine the electric to magnetic form factor ratio of the neutron GEn/GMn at a four-momentum transfer Q2=1.58 GeV2. Longitudinally polarized electrons are scattered on a highly polarized He3 gas target. The scattered electrons are detected with a high-resolution magnetic spectrometer, and the ejected neutrons are detected with a dedicated neutron detector composed of scintillator bars. To reduce systematic errors, data are taken for four different target polarization orientations allowing the determination of GEn/GMn from a double ratio. We find μnGEn/GMn=0.250±0.058(stat) ±0.017(syst).

AB - A measurement of beam helicity asymmetries in the reaction He→3(e→,e′n)pp is performed at the Mainz Microtron in quasielastic kinematics to determine the electric to magnetic form factor ratio of the neutron GEn/GMn at a four-momentum transfer Q2=1.58 GeV2. Longitudinally polarized electrons are scattered on a highly polarized He3 gas target. The scattered electrons are detected with a high-resolution magnetic spectrometer, and the ejected neutrons are detected with a dedicated neutron detector composed of scintillator bars. To reduce systematic errors, data are taken for four different target polarization orientations allowing the determination of GEn/GMn from a double ratio. We find μnGEn/GMn=0.250±0.058(stat) ±0.017(syst).

UR - https://www.scopus.com/pages/publications/84884682364

U2 - 10.1103/PhysRevLett.111.132504

DO - 10.1103/PhysRevLett.111.132504

M3 - Article

AN - SCOPUS:84884682364

SN - 0031-9007

VL - 111

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 132504

ER -

Measurement of the neutron electric to magnetic form factor ratio at Q2=1.58 GeV2 using the reaction He→3(e→,e^′n)pp

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