Beam-recoil polarization transfer in the nucleon resonance region in the exclusive e→p→e'K+Λ→ and e→p→e'K+Σ→0 reactions at the CLAS spectrometer

D. S. Carman; B. A. Raue; K. P. Adhikari; M. J. Amaryan; M. Anghinolfi; H. Baghdasaryan; M. Battaglieri; M. Bellis; A. S. Biselli; C. Bookwalter; D. Branford; W. J. Briscoe; W. K. Brooks; V. D. Burkert; P. L. Cole; P. Collins; V. Crede; A. Daniel; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; S. Dhamija; C. Djalali; G. E. Dodge; P. Eugenio; G. Fedotov; S. Fegan; A. Fradi; M. Y. Gabrielyan; K. L. Giovanetti; F. X. Girod; W. Gohn; A. Gonenc; R. W. Gothe; H. Hakobyan; C. Hanretty; N. Hassall; K. Hicks; M. Holtrop; Y. Ilieva; D. G. Ireland; H. S. Jo; J. R. Johnstone; P. Khetarpal; W. Kim; V. Kubarovsky; V. Kuznetsov; K. Livingston; M. Mayer

doi:10.1103/PhysRevC.79.065205

Beam-recoil polarization transfer in the nucleon resonance region in the exclusive e→p→e'K+Λ→ and e→p→e'K+Σ→0 reactions at the CLAS spectrometer

D. S. Carman, B. A. Raue, K. P. Adhikari, M. J. Amaryan, M. Anghinolfi, H. Baghdasaryan, M. Battaglieri, M. Bellis, A. S. Biselli, C. Bookwalter, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, P. L. Cole, P. Collins, V. Crede, A. Daniel, N. Dashyan, R. De VitaE. De Sanctis, A. Deur, S. Dhamija, C. Djalali, G. E. Dodge, P. Eugenio, G. Fedotov, S. Fegan, A. Fradi, M. Y. Gabrielyan, K. L. Giovanetti, F. X. Girod, W. Gohn, A. Gonenc, R. W. Gothe, H. Hakobyan, C. Hanretty, N. Hassall, K. Hicks, M. Holtrop, Y. Ilieva, D. G. Ireland, H. S. Jo, J. R. Johnstone, P. Khetarpal, W. Kim, V. Kubarovsky, V. Kuznetsov, K. Livingston, M. Mayer

Physics and Astronomy (Twin Cities)

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Abstract

Beam-recoil transferred polarizations for the exclusive e→p→e'K+Λ→,Σ→0 reactions have been measured using the Continuous Electron Beam Accelerator Facility's large acceptance spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. New measurements have been completed at beam energies of 4.261 and 5.754 GeV that span a range of momentum transfer Q2 from 0.7 to 5.4 GeV2, invariant energy W from 1.6 to 2.6 GeV, and the full center-of-mass angular range of the K+ meson. These new data add to the existing CLAS K+Λ measurements at 2.567 GeV, and provide the first-ever data for the K+Σ0 channel in electroproduction. Comparisons of the data with several theoretical models are used to study the sensitivity to s-channel resonance contributions and the underlying reaction mechanism. Interpretations within two semiclassical partonic models are made to probe the underlying reaction mechanism and the ss̄ quark-pair creation dynamics.

Original language	English (US)
Article number	065205
Journal	Physical Review C - Nuclear Physics
Volume	79
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.79.065205
State	Published - Jun 23 2009

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Carman, D. S., Raue, B. A., Adhikari, K. P., Amaryan, M. J., Anghinolfi, M., Baghdasaryan, H., Battaglieri, M., Bellis, M., Biselli, A. S., Bookwalter, C., Branford, D., Briscoe, W. J., Brooks, W. K., Burkert, V. D., Cole, P. L., Collins, P., Crede, V., Daniel, A., Dashyan, N., ... Mayer, M. (2009). Beam-recoil polarization transfer in the nucleon resonance region in the exclusive e→p→e'K+Λ→ and e→p→e'K+Σ→0 reactions at the CLAS spectrometer. Physical Review C - Nuclear Physics, 79(6), Article 065205. https://doi.org/10.1103/PhysRevC.79.065205

Carman, DS, Raue, BA, Adhikari, KP, Amaryan, MJ, Anghinolfi, M, Baghdasaryan, H, Battaglieri, M, Bellis, M, Biselli, AS, Bookwalter, C, Branford, D, Briscoe, WJ, Brooks, WK, Burkert, VD, Cole, PL, Collins, P, Crede, V, Daniel, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Dhamija, S, Djalali, C, Dodge, GE, Eugenio, P, Fedotov, G, Fegan, S, Fradi, A, Gabrielyan, MY, Giovanetti, KL, Girod, FX, Gohn, W, Gonenc, A, Gothe, RW, Hakobyan, H, Hanretty, C, Hassall, N, Hicks, K, Holtrop, M, Ilieva, Y, Ireland, DG, Jo, HS, Johnstone, JR, Khetarpal, P, Kim, W, Kubarovsky, V, Kuznetsov, V, Livingston, K & Mayer, M 2009, 'Beam-recoil polarization transfer in the nucleon resonance region in the exclusive e→p→e'K+Λ→ and e→p→e'K+Σ→0 reactions at the CLAS spectrometer', Physical Review C - Nuclear Physics, vol. 79, no. 6, 065205. https://doi.org/10.1103/PhysRevC.79.065205

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title = "Beam-recoil polarization transfer in the nucleon resonance region in the exclusive e→p→e'K+Λ→ and e→p→e'K+Σ→0 reactions at the CLAS spectrometer",

abstract = "Beam-recoil transferred polarizations for the exclusive e→p→e'K+Λ→,Σ→0 reactions have been measured using the Continuous Electron Beam Accelerator Facility's large acceptance spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. New measurements have been completed at beam energies of 4.261 and 5.754 GeV that span a range of momentum transfer Q2 from 0.7 to 5.4 GeV2, invariant energy W from 1.6 to 2.6 GeV, and the full center-of-mass angular range of the K+ meson. These new data add to the existing CLAS K+Λ measurements at 2.567 GeV, and provide the first-ever data for the K+Σ0 channel in electroproduction. Comparisons of the data with several theoretical models are used to study the sensitivity to s-channel resonance contributions and the underlying reaction mechanism. Interpretations within two semiclassical partonic models are made to probe the underlying reaction mechanism and the s{\=s} quark-pair creation dynamics.",

author = "Carman, {D. S.} and Raue, {B. A.} and Adhikari, {K. P.} and Amaryan, {M. J.} and M. Anghinolfi and H. Baghdasaryan and M. Battaglieri and M. Bellis and Biselli, {A. S.} and C. Bookwalter and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and Burkert, {V. D.} and Cole, {P. L.} and P. Collins and V. Crede and A. Daniel and N. Dashyan and {De Vita}, R. and {De Sanctis}, E. and A. Deur and S. Dhamija and C. Djalali and Dodge, {G. E.} and P. Eugenio and G. Fedotov and S. Fegan and A. Fradi and Gabrielyan, {M. Y.} and Giovanetti, {K. L.} and Girod, {F. X.} and W. Gohn and A. Gonenc and Gothe, {R. W.} and H. Hakobyan and C. Hanretty and N. Hassall and K. Hicks and M. Holtrop and Y. Ilieva and Ireland, {D. G.} and Jo, {H. S.} and Johnstone, {J. R.} and P. Khetarpal and W. Kim and V. Kubarovsky and V. Kuznetsov and K. Livingston and M. Mayer",

year = "2009",

month = jun,

day = "23",

doi = "10.1103/PhysRevC.79.065205",

language = "English (US)",

volume = "79",

journal = "Physical Review C - Nuclear Physics",

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T1 - Beam-recoil polarization transfer in the nucleon resonance region in the exclusive e→p→e'K+Λ→ and e→p→e'K+Σ→0 reactions at the CLAS spectrometer

AU - Carman, D. S.

AU - Raue, B. A.

AU - Adhikari, K. P.

AU - Amaryan, M. J.

AU - Anghinolfi, M.

AU - Baghdasaryan, H.

AU - Battaglieri, M.

AU - Bellis, M.

AU - Biselli, A. S.

AU - Bookwalter, C.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Cole, P. L.

AU - Collins, P.

AU - Crede, V.

AU - Daniel, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Deur, A.

AU - Dhamija, S.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Eugenio, P.

AU - Fedotov, G.

AU - Fegan, S.

AU - Fradi, A.

AU - Gabrielyan, M. Y.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Gohn, W.

AU - Gonenc, A.

AU - Gothe, R. W.

AU - Hakobyan, H.

AU - Hanretty, C.

AU - Hassall, N.

AU - Hicks, K.

AU - Holtrop, M.

AU - Ilieva, Y.

AU - Ireland, D. G.

AU - Jo, H. S.

AU - Johnstone, J. R.

AU - Khetarpal, P.

AU - Kim, W.

AU - Kubarovsky, V.

AU - Kuznetsov, V.

AU - Livingston, K.

AU - Mayer, M.

PY - 2009/6/23

Y1 - 2009/6/23

N2 - Beam-recoil transferred polarizations for the exclusive e→p→e'K+Λ→,Σ→0 reactions have been measured using the Continuous Electron Beam Accelerator Facility's large acceptance spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. New measurements have been completed at beam energies of 4.261 and 5.754 GeV that span a range of momentum transfer Q2 from 0.7 to 5.4 GeV2, invariant energy W from 1.6 to 2.6 GeV, and the full center-of-mass angular range of the K+ meson. These new data add to the existing CLAS K+Λ measurements at 2.567 GeV, and provide the first-ever data for the K+Σ0 channel in electroproduction. Comparisons of the data with several theoretical models are used to study the sensitivity to s-channel resonance contributions and the underlying reaction mechanism. Interpretations within two semiclassical partonic models are made to probe the underlying reaction mechanism and the ss̄ quark-pair creation dynamics.

AB - Beam-recoil transferred polarizations for the exclusive e→p→e'K+Λ→,Σ→0 reactions have been measured using the Continuous Electron Beam Accelerator Facility's large acceptance spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. New measurements have been completed at beam energies of 4.261 and 5.754 GeV that span a range of momentum transfer Q2 from 0.7 to 5.4 GeV2, invariant energy W from 1.6 to 2.6 GeV, and the full center-of-mass angular range of the K+ meson. These new data add to the existing CLAS K+Λ measurements at 2.567 GeV, and provide the first-ever data for the K+Σ0 channel in electroproduction. Comparisons of the data with several theoretical models are used to study the sensitivity to s-channel resonance contributions and the underlying reaction mechanism. Interpretations within two semiclassical partonic models are made to probe the underlying reaction mechanism and the ss̄ quark-pair creation dynamics.

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DO - 10.1103/PhysRevC.79.065205

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JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

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M1 - 065205

ER -

Beam-recoil polarization transfer in the nucleon resonance region in the exclusive e→p→e'K+Λ→ and e→p→e'K+Σ→0 reactions at the CLAS spectrometer

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