Measurement of the Neutron F-2 Structure Function via Spectator Tagging with CLAS

CLAS Collaboration; N. Baillie; S. Tkachenko; J. Zhang; P. Bosted; S. Bueltmann; M. E. Christy; H. Fenker; K. A. Griffioen; C. E. Keppel; S. E. Kuhn; W. Melnitchouk; V. Tvaskis; K. P. Adhikari; D. Adikaram; M. Aghasyan; M. J. Amaryan; M. Anghinolfi; J. Arrington; H. Avakian; H. Baghdasaryan; M. Battaglieri; A. S. Biselli; D. Branford; W. J. Briscoe; W. K. Brooks; V. D. Burkert; D. S. Carman; A. Celentano; S. Chandavar; G. Charles; P. L. Cole; M. Contalbrigo; V. Crede; A. D'Angelo; A. Daniel; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; B. Dey; C. Djalali; G. Dodge; J. Domingo; D. Doughty; R. Dupre; D. Dutta; R. Ent; H. Egiyan; A. El Alaoui; D. P. Watts

doi:10.1103/PhysRevLett.108.142001

Measurement of the Neutron F-2 Structure Function via Spectator Tagging with CLAS

CLAS Collaboration, N. Baillie, S. Tkachenko, J. Zhang, P. Bosted, S. Bueltmann, M. E. Christy, H. Fenker, K. A. Griffioen, C. E. Keppel, S. E. Kuhn, W. Melnitchouk, V. Tvaskis, K. P. Adhikari, D. Adikaram, M. Aghasyan, M. J. Amaryan, M. Anghinolfi, J. Arrington, H. AvakianH. Baghdasaryan, M. Battaglieri, A. S. Biselli, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, D. S. Carman, A. Celentano, S. Chandavar, G. Charles, P. L. Cole, M. Contalbrigo, V. Crede, A. D'Angelo, A. Daniel, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, B. Dey, C. Djalali, G. Dodge, J. Domingo, D. Doughty, R. Dupre, D. Dutta, R. Ent, H. Egiyan, A. El Alaoui, D. P. Watts

School of Physics and Astronomy

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

Abstract

We report on the first measurement of the F-2 structure function of the neutron from the semi-inclusive scattering of electrons from deuterium, with low-momentum protons detected in the backward hemisphere. Restricting the momentum of the spectator protons to less than or similar to 100 MeV/c and their angles to greater than or similar to 100 degrees relative to the momentum transfer allows an interpretation of the process in terms of scattering from nearly on-shell neutrons. The F-2(n) data collected cover the nucleon-resonance and deep-inelastic regions over a wide range of Bjorken x for 0.65 < Q(2) < 4.52 GeV2, with uncertainties from nuclear corrections estimated to be less than a few percent. These measurements provide the first determination of the neutron to proton structure function ratio F-2(n)/F-2(p) at 0.2 less than or similar to x less than or similar to 0.8 with little uncertainty due to nuclear effects.

Original language	English
Article number	142001
Pages (from-to)	-
Number of pages	6
Journal	Physical Review Letters
Volume	108
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.108.142001
Publication status	Published - 6 Apr 2012

Access to Document

10.1103/PhysRevLett.108.142001

Illuminating strongly interacting matter
Watts, D. (Principal Investigator)
STFC
1/06/09 → 31/12/13
Project: Research

Cite this

CLAS Collaboration, Baillie, N., Tkachenko, S., Zhang, J., Bosted, P., Bueltmann, S., Christy, M. E., Fenker, H., Griffioen, K. A., Keppel, C. E., Kuhn, S. E., Melnitchouk, W., Tvaskis, V., Adhikari, K. P., Adikaram, D., Aghasyan, M., Amaryan, M. J., Anghinolfi, M., Arrington, J., ... Watts, D. P. (2012). Measurement of the Neutron F-2 Structure Function via Spectator Tagging with CLAS. Physical Review Letters, 108(14), -. Article 142001. https://doi.org/10.1103/PhysRevLett.108.142001

@article{d20585bd72eb406da2b1ff21c707c91a,

title = "Measurement of the Neutron F-2 Structure Function via Spectator Tagging with CLAS",

abstract = "We report on the first measurement of the F-2 structure function of the neutron from the semi-inclusive scattering of electrons from deuterium, with low-momentum protons detected in the backward hemisphere. Restricting the momentum of the spectator protons to less than or similar to 100 MeV/c and their angles to greater than or similar to 100 degrees relative to the momentum transfer allows an interpretation of the process in terms of scattering from nearly on-shell neutrons. The F-2(n) data collected cover the nucleon-resonance and deep-inelastic regions over a wide range of Bjorken x for 0.65 < Q(2) < 4.52 GeV2, with uncertainties from nuclear corrections estimated to be less than a few percent. These measurements provide the first determination of the neutron to proton structure function ratio F-2(n)/F-2(p) at 0.2 less than or similar to x less than or similar to 0.8 with little uncertainty due to nuclear effects.",

author = "\{CLAS Collaboration\} and N. Baillie and S. Tkachenko and J. Zhang and P. Bosted and S. Bueltmann and Christy, \{M. E.\} and H. Fenker and Griffioen, \{K. A.\} and Keppel, \{C. E.\} and Kuhn, \{S. E.\} and W. Melnitchouk and V. Tvaskis and Adhikari, \{K. P.\} and D. Adikaram and M. Aghasyan and Amaryan, \{M. J.\} and M. Anghinolfi and J. Arrington and H. Avakian and H. Baghdasaryan and M. Battaglieri and Biselli, \{A. S.\} and D. Branford and Briscoe, \{W. J.\} and Brooks, \{W. K.\} and Burkert, \{V. D.\} and Carman, \{D. S.\} and A. Celentano and S. Chandavar and G. Charles and Cole, \{P. L.\} and M. Contalbrigo and V. Crede and A. D'Angelo and A. Daniel and N. Dashyan and \{De Vita\}, R. and \{De Sanctis\}, E. and A. Deur and B. Dey and C. Djalali and G. Dodge and J. Domingo and D. Doughty and R. Dupre and D. Dutta and R. Ent and H. Egiyan and \{El Alaoui\}, A. and Watts, \{D. P.\}",

year = "2012",

month = apr,

day = "6",

doi = "10.1103/PhysRevLett.108.142001",

language = "English",

volume = "108",

pages = "--",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "14",

}

CLAS Collaboration, Baillie, N, Tkachenko, S, Zhang, J, Bosted, P, Bueltmann, S, Christy, ME, Fenker, H, Griffioen, KA, Keppel, CE, Kuhn, SE, Melnitchouk, W, Tvaskis, V, Adhikari, KP, Adikaram, D, Aghasyan, M, Amaryan, MJ, Anghinolfi, M, Arrington, J, Avakian, H, Baghdasaryan, H, Battaglieri, M, Biselli, AS, Branford, D, Briscoe, WJ, Brooks, WK, Burkert, VD, Carman, DS, Celentano, A, Chandavar, S, Charles, G, Cole, PL, Contalbrigo, M, Crede, V, D'Angelo, A, Daniel, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Dey, B, Djalali, C, Dodge, G, Domingo, J, Doughty, D, Dupre, R, Dutta, D, Ent, R, Egiyan, H, El Alaoui, A & Watts, DP 2012, 'Measurement of the Neutron F-2 Structure Function via Spectator Tagging with CLAS', Physical Review Letters, vol. 108, no. 14, 142001, pp. -. https://doi.org/10.1103/PhysRevLett.108.142001

TY - JOUR

T1 - Measurement of the Neutron F-2 Structure Function via Spectator Tagging with CLAS

AU - CLAS Collaboration

AU - Baillie, N.

AU - Tkachenko, S.

AU - Zhang, J.

AU - Bosted, P.

AU - Bueltmann, S.

AU - Christy, M. E.

AU - Fenker, H.

AU - Griffioen, K. A.

AU - Keppel, C. E.

AU - Kuhn, S. E.

AU - Melnitchouk, W.

AU - Tvaskis, V.

AU - Adhikari, K. P.

AU - Adikaram, D.

AU - Aghasyan, M.

AU - Amaryan, M. J.

AU - Anghinolfi, M.

AU - Arrington, J.

AU - Avakian, H.

AU - Baghdasaryan, H.

AU - Battaglieri, M.

AU - Biselli, A. S.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Carman, D. S.

AU - Celentano, A.

AU - Chandavar, S.

AU - Charles, G.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Crede, V.

AU - D'Angelo, A.

AU - Daniel, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Deur, A.

AU - Dey, B.

AU - Djalali, C.

AU - Dodge, G.

AU - Domingo, J.

AU - Doughty, D.

AU - Dupre, R.

AU - Dutta, D.

AU - Ent, R.

AU - Egiyan, H.

AU - El Alaoui, A.

AU - Watts, D. P.

PY - 2012/4/6

Y1 - 2012/4/6

N2 - We report on the first measurement of the F-2 structure function of the neutron from the semi-inclusive scattering of electrons from deuterium, with low-momentum protons detected in the backward hemisphere. Restricting the momentum of the spectator protons to less than or similar to 100 MeV/c and their angles to greater than or similar to 100 degrees relative to the momentum transfer allows an interpretation of the process in terms of scattering from nearly on-shell neutrons. The F-2(n) data collected cover the nucleon-resonance and deep-inelastic regions over a wide range of Bjorken x for 0.65 < Q(2) < 4.52 GeV2, with uncertainties from nuclear corrections estimated to be less than a few percent. These measurements provide the first determination of the neutron to proton structure function ratio F-2(n)/F-2(p) at 0.2 less than or similar to x less than or similar to 0.8 with little uncertainty due to nuclear effects.

AB - We report on the first measurement of the F-2 structure function of the neutron from the semi-inclusive scattering of electrons from deuterium, with low-momentum protons detected in the backward hemisphere. Restricting the momentum of the spectator protons to less than or similar to 100 MeV/c and their angles to greater than or similar to 100 degrees relative to the momentum transfer allows an interpretation of the process in terms of scattering from nearly on-shell neutrons. The F-2(n) data collected cover the nucleon-resonance and deep-inelastic regions over a wide range of Bjorken x for 0.65 < Q(2) < 4.52 GeV2, with uncertainties from nuclear corrections estimated to be less than a few percent. These measurements provide the first determination of the neutron to proton structure function ratio F-2(n)/F-2(p) at 0.2 less than or similar to x less than or similar to 0.8 with little uncertainty due to nuclear effects.

U2 - 10.1103/PhysRevLett.108.142001

DO - 10.1103/PhysRevLett.108.142001

M3 - Article

SN - 0031-9007

VL - 108

SP - -

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

M1 - 142001

ER -

Measurement of the Neutron F-2 Structure Function via Spectator Tagging with CLAS

Abstract

Access to Document

Fingerprint

Projects

Illuminating strongly interacting matter

Cite this