Beam-helicity asymmetries in double-charged-pion photoproduction on the proton

S. Strauch, B. L. Berman, G. Adams, P. Ambrozewicz, M. Anghinolfi, B. Asavapibhop, G. Asryan, G. Audit, H. Avakian, H. Bagdasaryan, N. Baillie, J. P. Ball, N. A. Baltzell, S. Barrow, V. Batourine, M. Battaglieri, K. Beard, I. Bedlinskiy, M. Bektasoglu, M. BellisN. Benmouna, C. Bennhold, A. S. Biselli, S. Boiarinov, S. Bouchigny, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, S. Bültmann, V. D. Burkert, C. Butuceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, B. Carnahan, S. Chen, P. L. Cole, A. Coleman, P. Coltharp, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, P. V. Degtyarenko, H. Denizli, L. Dennis, E. De Sanctis, A. Deur, R. Devita, K. V. Dharmawardane, K. S. Dhuga, C. Djalali, G. E. Dodge, J. Donnelly, D. Doughty, P. Dragovitsch, M. Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. Elouadrhiri, A. Empl, P. Eugenio, R. Fatemi, G. Fedotov, G. Feldman, R. J. Feuerbach, A. Fix, T. A. Forest, H. Funsten, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, R. W. Gothe, K. A. Griffioen, M. Guidal, N. Guler, L. Guo, V. Gyurjyan, C. Hadjidakis, R. S. Hakobyan, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, I. Hleiqawi, M. Holtrop, J. Hu, M. Huertas, C. E. Hyde-Wright, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, M. M. Ito

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Beam-helicity asymmetries for the two-pion-photoproduction reaction Y→p∏+∏+ have been studied for the first time in the resonance region for center-of-mass energies between 1.35 and 2.30 GeV. The experiment was performed at Jefferson Lab with the CEBAF Large Acceptance Spectrometer using circularly polarized tagged photons incident on an unpolarized hydrogen target. Beam-helicity-dependent angular distributions of the final-state particles were measured. The large cross-section asymmetries exhibit strong sensitivity to the kinematics and dynamics of the reaction. The data are compared with the results of various phenomenological model calculations, and show that these models currently do not provide an adequate description for the behavior of this new observable.

Original languageEnglish
Article number162003
JournalPhysical Review Letters
Volume95
Issue number16
DOIs
Publication statusPublished - 14 Oct 2005

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photoproduction
pions
asymmetry
protons
acceptability
center of mass
kinematics
angular distribution
spectrometers
sensitivity
cross sections
photons
hydrogen
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Strauch, S., Berman, B. L., Adams, G., Ambrozewicz, P., Anghinolfi, M., Asavapibhop, B., ... Ito, M. M. (2005). Beam-helicity asymmetries in double-charged-pion photoproduction on the proton. Physical Review Letters, 95(16), [162003]. https://doi.org/10.1103/PhysRevLett.95.162003

Beam-helicity asymmetries in double-charged-pion photoproduction on the proton. / Strauch, S.; Berman, B. L.; Adams, G.; Ambrozewicz, P.; Anghinolfi, M.; Asavapibhop, B.; Asryan, G.; Audit, G.; Avakian, H.; Bagdasaryan, H.; Baillie, N.; Ball, J. P.; Baltzell, N. A.; Barrow, S.; Batourine, V.; Battaglieri, M.; Beard, K.; Bedlinskiy, I.; Bektasoglu, M.; Bellis, M.; Benmouna, N.; Bennhold, C.; Biselli, A. S.; Boiarinov, S.; Bouchigny, S.; Bradford, R.; Branford, D.; Briscoe, W. J.; Brooks, W. K.; Bültmann, S.; Burkert, V. D.; Butuceanu, C.; Calarco, J. R.; Careccia, S. L.; Carman, D. S.; Carnahan, B.; Chen, S.; Cole, P. L.; Coleman, A.; Coltharp, P.; Cords, D.; Corvisiero, P.; Crabb, D.; Crannell, H.; Cummings, J. P.; Degtyarenko, P. V.; Denizli, H.; Dennis, L.; De Sanctis, E.; Deur, A.; Devita, R.; Dharmawardane, K. V.; Dhuga, K. S.; Djalali, C.; Dodge, G. E.; Donnelly, J.; Doughty, D.; Dragovitsch, P.; Dugger, M.; Dytman, S.; Dzyubak, O. P.; Egiyan, H.; Egiyan, K. S.; Elouadrhiri, L.; Empl, A.; Eugenio, P.; Fatemi, R.; Fedotov, G.; Feldman, G.; Feuerbach, R. J.; Fix, A.; Forest, T. A.; Funsten, H.; Gavalian, G.; Gilfoyle, G. P.; Giovanetti, K. L.; Girod, F. X.; Goetz, J. T.; Gothe, R. W.; Griffioen, K. A.; Guidal, M.; Guler, N.; Guo, L.; Gyurjyan, V.; Hadjidakis, C.; Hakobyan, R. S.; Hardie, J.; Heddle, D.; Hersman, F. W.; Hicks, K.; Hleiqawi, I.; Holtrop, M.; Hu, J.; Huertas, M.; Hyde-Wright, C. E.; Ilieva, Y.; Ireland, D. G.; Ishkhanov, B. S.; Ito, M. M.

In: Physical Review Letters, Vol. 95, No. 16, 162003, 14.10.2005.

Research output: Contribution to journalArticle

Strauch, S, Berman, BL, Adams, G, Ambrozewicz, P, Anghinolfi, M, Asavapibhop, B, Asryan, G, Audit, G, Avakian, H, Bagdasaryan, H, Baillie, N, Ball, JP, Baltzell, NA, Barrow, S, Batourine, V, Battaglieri, M, Beard, K, Bedlinskiy, I, Bektasoglu, M, Bellis, M, Benmouna, N, Bennhold, C, Biselli, AS, Boiarinov, S, Bouchigny, S, Bradford, R, Branford, D, Briscoe, WJ, Brooks, WK, Bültmann, S, Burkert, VD, Butuceanu, C, Calarco, JR, Careccia, SL, Carman, DS, Carnahan, B, Chen, S, Cole, PL, Coleman, A, Coltharp, P, Cords, D, Corvisiero, P, Crabb, D, Crannell, H, Cummings, JP, Degtyarenko, PV, Denizli, H, Dennis, L, De Sanctis, E, Deur, A, Devita, R, Dharmawardane, KV, Dhuga, KS, Djalali, C, Dodge, GE, Donnelly, J, Doughty, D, Dragovitsch, P, Dugger, M, Dytman, S, Dzyubak, OP, Egiyan, H, Egiyan, KS, Elouadrhiri, L, Empl, A, Eugenio, P, Fatemi, R, Fedotov, G, Feldman, G, Feuerbach, RJ, Fix, A, Forest, TA, Funsten, H, Gavalian, G, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Goetz, JT, Gothe, RW, Griffioen, KA, Guidal, M, Guler, N, Guo, L, Gyurjyan, V, Hadjidakis, C, Hakobyan, RS, Hardie, J, Heddle, D, Hersman, FW, Hicks, K, Hleiqawi, I, Holtrop, M, Hu, J, Huertas, M, Hyde-Wright, CE, Ilieva, Y, Ireland, DG, Ishkhanov, BS & Ito, MM 2005, 'Beam-helicity asymmetries in double-charged-pion photoproduction on the proton', Physical Review Letters, vol. 95, no. 16, 162003. https://doi.org/10.1103/PhysRevLett.95.162003
Strauch S, Berman BL, Adams G, Ambrozewicz P, Anghinolfi M, Asavapibhop B et al. Beam-helicity asymmetries in double-charged-pion photoproduction on the proton. Physical Review Letters. 2005 Oct 14;95(16). 162003. https://doi.org/10.1103/PhysRevLett.95.162003
Strauch, S. ; Berman, B. L. ; Adams, G. ; Ambrozewicz, P. ; Anghinolfi, M. ; Asavapibhop, B. ; Asryan, G. ; Audit, G. ; Avakian, H. ; Bagdasaryan, H. ; Baillie, N. ; Ball, J. P. ; Baltzell, N. A. ; Barrow, S. ; Batourine, V. ; Battaglieri, M. ; Beard, K. ; Bedlinskiy, I. ; Bektasoglu, M. ; Bellis, M. ; Benmouna, N. ; Bennhold, C. ; Biselli, A. S. ; Boiarinov, S. ; Bouchigny, S. ; Bradford, R. ; Branford, D. ; Briscoe, W. J. ; Brooks, W. K. ; Bültmann, S. ; Burkert, V. D. ; Butuceanu, C. ; Calarco, J. R. ; Careccia, S. L. ; Carman, D. S. ; Carnahan, B. ; Chen, S. ; Cole, P. L. ; Coleman, A. ; Coltharp, P. ; Cords, D. ; Corvisiero, P. ; Crabb, D. ; Crannell, H. ; Cummings, J. P. ; Degtyarenko, P. V. ; Denizli, H. ; Dennis, L. ; De Sanctis, E. ; Deur, A. ; Devita, R. ; Dharmawardane, K. V. ; Dhuga, K. S. ; Djalali, C. ; Dodge, G. E. ; Donnelly, J. ; Doughty, D. ; Dragovitsch, P. ; Dugger, M. ; Dytman, S. ; Dzyubak, O. P. ; Egiyan, H. ; Egiyan, K. S. ; Elouadrhiri, L. ; Empl, A. ; Eugenio, P. ; Fatemi, R. ; Fedotov, G. ; Feldman, G. ; Feuerbach, R. J. ; Fix, A. ; Forest, T. A. ; Funsten, H. ; Gavalian, G. ; Gilfoyle, G. P. ; Giovanetti, K. L. ; Girod, F. X. ; Goetz, J. T. ; Gothe, R. W. ; Griffioen, K. A. ; Guidal, M. ; Guler, N. ; Guo, L. ; Gyurjyan, V. ; Hadjidakis, C. ; Hakobyan, R. S. ; Hardie, J. ; Heddle, D. ; Hersman, F. W. ; Hicks, K. ; Hleiqawi, I. ; Holtrop, M. ; Hu, J. ; Huertas, M. ; Hyde-Wright, C. E. ; Ilieva, Y. ; Ireland, D. G. ; Ishkhanov, B. S. ; Ito, M. M. / Beam-helicity asymmetries in double-charged-pion photoproduction on the proton. In: Physical Review Letters. 2005 ; Vol. 95, No. 16.
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title = "Beam-helicity asymmetries in double-charged-pion photoproduction on the proton",
abstract = "Beam-helicity asymmetries for the two-pion-photoproduction reaction Y→p∏+∏+ have been studied for the first time in the resonance region for center-of-mass energies between 1.35 and 2.30 GeV. The experiment was performed at Jefferson Lab with the CEBAF Large Acceptance Spectrometer using circularly polarized tagged photons incident on an unpolarized hydrogen target. Beam-helicity-dependent angular distributions of the final-state particles were measured. The large cross-section asymmetries exhibit strong sensitivity to the kinematics and dynamics of the reaction. The data are compared with the results of various phenomenological model calculations, and show that these models currently do not provide an adequate description for the behavior of this new observable.",
author = "S. Strauch and Berman, {B. L.} and G. Adams and P. Ambrozewicz and M. Anghinolfi and B. Asavapibhop and G. Asryan and G. Audit and H. Avakian and H. Bagdasaryan and N. Baillie and Ball, {J. P.} and Baltzell, {N. A.} and S. Barrow and V. Batourine and M. Battaglieri and K. Beard and I. Bedlinskiy and M. Bektasoglu and M. Bellis and N. Benmouna and C. Bennhold and Biselli, {A. S.} and S. Boiarinov and S. Bouchigny and R. Bradford and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and S. B{\"u}ltmann and Burkert, {V. D.} and C. Butuceanu and Calarco, {J. R.} and Careccia, {S. L.} and Carman, {D. S.} and B. Carnahan and S. Chen and Cole, {P. L.} and A. Coleman and P. Coltharp and D. Cords and P. Corvisiero and D. Crabb and H. Crannell and Cummings, {J. P.} and Degtyarenko, {P. V.} and H. Denizli and L. Dennis and {De Sanctis}, E. and A. Deur and R. Devita and Dharmawardane, {K. V.} and Dhuga, {K. S.} and C. Djalali and Dodge, {G. E.} and J. Donnelly and D. Doughty and P. Dragovitsch and M. Dugger and S. Dytman and Dzyubak, {O. P.} and H. Egiyan and Egiyan, {K. S.} and L. Elouadrhiri and A. Empl and P. Eugenio and R. Fatemi and G. Fedotov and G. Feldman and Feuerbach, {R. J.} and A. Fix and Forest, {T. A.} and H. Funsten and G. Gavalian and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and Girod, {F. X.} and Goetz, {J. T.} and Gothe, {R. W.} and Griffioen, {K. A.} and M. Guidal and N. Guler and L. Guo and V. Gyurjyan and C. Hadjidakis and Hakobyan, {R. S.} and J. Hardie and D. Heddle and Hersman, {F. W.} and K. Hicks and I. Hleiqawi and M. Holtrop and J. Hu and M. Huertas and Hyde-Wright, {C. E.} and Y. Ilieva and Ireland, {D. G.} and Ishkhanov, {B. S.} and Ito, {M. M.}",
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TY - JOUR

T1 - Beam-helicity asymmetries in double-charged-pion photoproduction on the proton

AU - Strauch, S.

AU - Berman, B. L.

AU - Adams, G.

AU - Ambrozewicz, P.

AU - Anghinolfi, M.

AU - Asavapibhop, B.

AU - Asryan, G.

AU - Audit, G.

AU - Avakian, H.

AU - Bagdasaryan, H.

AU - Baillie, N.

AU - Ball, J. P.

AU - Baltzell, N. A.

AU - Barrow, S.

AU - Batourine, V.

AU - Battaglieri, M.

AU - Beard, K.

AU - Bedlinskiy, I.

AU - Bektasoglu, M.

AU - Bellis, M.

AU - Benmouna, N.

AU - Bennhold, C.

AU - Biselli, A. S.

AU - Boiarinov, S.

AU - Bouchigny, S.

AU - Bradford, R.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Bültmann, S.

AU - Burkert, V. D.

AU - Butuceanu, C.

AU - Calarco, J. R.

AU - Careccia, S. L.

AU - Carman, D. S.

AU - Carnahan, B.

AU - Chen, S.

AU - Cole, P. L.

AU - Coleman, A.

AU - Coltharp, P.

AU - Cords, D.

AU - Corvisiero, P.

AU - Crabb, D.

AU - Crannell, H.

AU - Cummings, J. P.

AU - Degtyarenko, P. V.

AU - Denizli, H.

AU - Dennis, L.

AU - De Sanctis, E.

AU - Deur, A.

AU - Devita, R.

AU - Dharmawardane, K. V.

AU - Dhuga, K. S.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Donnelly, J.

AU - Doughty, D.

AU - Dragovitsch, P.

AU - Dugger, M.

AU - Dytman, S.

AU - Dzyubak, O. P.

AU - Egiyan, H.

AU - Egiyan, K. S.

AU - Elouadrhiri, L.

AU - Empl, A.

AU - Eugenio, P.

AU - Fatemi, R.

AU - Fedotov, G.

AU - Feldman, G.

AU - Feuerbach, R. J.

AU - Fix, A.

AU - Forest, T. A.

AU - Funsten, H.

AU - Gavalian, G.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Guler, N.

AU - Guo, L.

AU - Gyurjyan, V.

AU - Hadjidakis, C.

AU - Hakobyan, R. S.

AU - Hardie, J.

AU - Heddle, D.

AU - Hersman, F. W.

AU - Hicks, K.

AU - Hleiqawi, I.

AU - Holtrop, M.

AU - Hu, J.

AU - Huertas, M.

AU - Hyde-Wright, C. E.

AU - Ilieva, Y.

AU - Ireland, D. G.

AU - Ishkhanov, B. S.

AU - Ito, M. M.

PY - 2005/10/14

Y1 - 2005/10/14

N2 - Beam-helicity asymmetries for the two-pion-photoproduction reaction Y→p∏+∏+ have been studied for the first time in the resonance region for center-of-mass energies between 1.35 and 2.30 GeV. The experiment was performed at Jefferson Lab with the CEBAF Large Acceptance Spectrometer using circularly polarized tagged photons incident on an unpolarized hydrogen target. Beam-helicity-dependent angular distributions of the final-state particles were measured. The large cross-section asymmetries exhibit strong sensitivity to the kinematics and dynamics of the reaction. The data are compared with the results of various phenomenological model calculations, and show that these models currently do not provide an adequate description for the behavior of this new observable.

AB - Beam-helicity asymmetries for the two-pion-photoproduction reaction Y→p∏+∏+ have been studied for the first time in the resonance region for center-of-mass energies between 1.35 and 2.30 GeV. The experiment was performed at Jefferson Lab with the CEBAF Large Acceptance Spectrometer using circularly polarized tagged photons incident on an unpolarized hydrogen target. Beam-helicity-dependent angular distributions of the final-state particles were measured. The large cross-section asymmetries exhibit strong sensitivity to the kinematics and dynamics of the reaction. The data are compared with the results of various phenomenological model calculations, and show that these models currently do not provide an adequate description for the behavior of this new observable.

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U2 - 10.1103/PhysRevLett.95.162003

DO - 10.1103/PhysRevLett.95.162003

M3 - Article

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VL - 95

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

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