Separated structure functions for the exclusive electroproduction of K+Λ and K+Σ0 final states

P. Ambrozewicz; D. S. Carman; R. J. Feuerbach; M. D. Mestayer; B. A. Raue; R. A. Schumacher; A. Tkabladze; M. J. Amarian; M. Anghinolfi; B. Asavapibhop; G. Asryan; 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. Bellis; N. Benmouna; B. L. Berman; N. Bianchi; A. S. Biselli; B. E. Bonner; S. Bouchigny; S. Boiarinov; R. Bradford; D. Branford; W. J. Briscoe; W. K. Brooks; S. Bültmann; V. D. Burkert; C. Butuceanu; J. R. Calarco; S. L. Careccia; C. Cetina; S. Chen; P. L. Cole; P. Collins; P. Coltharp; D. Cords; P. Corvisiero; D. Crabb; V. Crede; J. P. Cummings; N. Dashyan; R. De Masi; R. De Vita; E. De Sanctis; P. V. Degtyarenko; L. Dennis; A. Deur; K. S. Dhuga; R. Dickson; C. Djalali; G. E. Dodge; J. Donnelly; D. Doughty; P. Dragovitsch; M. Dugger; S. Dytman; O. P. Dzyubak; H. Egiyan; K. S. Egiyan; L. El Fassi; L. Elouadrhiri; A. Empl; P. Eugenio; L. Farhi; R. Fatemi; G. Fedotov; G. Feldman; T. A. Forest; V. Frolov; H. Funsten; M. Garçon; G. Gavalian; G. P. Gilfoyle; K. L. Giovanetti; P. Girard; F. X. Girod; J. T. Goetz; A. Gonenc; R. W. Gothe; K. A. Griffioen; M. Guidal; M. Guillo; N. Guler; L. Guo; V. Gyurjyan; K. Hafidi; H. Hakobyan; J. Hardie; D. Heddle; F. W. Hersman; K. Hicks; I. Hleiqawi; M. Holtrop; J. Hu; C. E. Hyde-Wright; Y. Ilieva; D. G. Ireland; B. S. Ishkhanov; E. L. Isupov; M. M. Ito; D. Jenkins; H. S. Jo; K. Joo; H. G. Juengst; N. Kalantarians; J. D. Kellie; M. Khandaker; K. Y. Kim; K. Kim; W. Kim; A. Klein; F. J. Klein; M. Klusman; M. Kossov; L. H. Kramer; V. Kubarovsky; J. Kuhn; S. E. Kuhn; S. V. Kuleshov; J. Lachniet; J. M. Laget; J. Langheinrich; D. Lawrence; K. Livingston; H. Y. Lu; K. Lukashin; M. MacCormick; J. J. Manak; N. Markov; S. McAleer; B. McKinnon; J. W.C. McNabb; B. A. Mecking; C. A. Meyer; T. Mibe; K. Mikhailov; R. Minehart; M. Mirazita; R. Miskimen; V. Mokeev; K. Moriya; S. A. Morrow; M. Moteabbed; V. Muccifora; J. Mueller; G. S. Mutchler; P. Nadel-Turonski; J. Napolitano; R. Nasseripour; S. Niccolai; G. Niculescu; I. Niculescu; B. B. Niczyporuk; M. R. Niroula; R. A. Niyazov; M. Nozar; G. V. O'Rielly; M. Osipenko; A. I. Ostrovidov; K. Park; E. Pasyuk; C. Paterson; S. A. Philips; J. Pierce; N. Pivnyuk; D. Pocanic; O. Pogorelko; E. Polli; S. Pozdniakov; B. M. Preedom; J. W. Price; Y. Prok; D. Protopopescu; L. M. Qin; G. Riccardi; G. Ricco; M. Ripani; B. G. Ritchie; F. Ronchetti; G. Rosner; P. Rossi; D. Rowntree; P. D. Rubin; F. Sabatié; J. Salamanca; C. Salgado; J. P. Santoro; V. Sapunenko; D. Sayre; V. S. Serov; A. Shafi; Y. G. Sharabian; N. V. Shvedunov; S. Simionatto; A. V. Skabelin; E. S. Smith; L. C. Smith; D. I. Sober; D. Sokhan; A. Stavinsky; S. S. Stepanyan; S. Stepanyan; B. E. Stokes; P. Stoler; I. I. Strakovsky; S. Strauch; M. Taiuti; S. Taylor; D. J. Tedeschi; R. Thompson; S. Tkachenko; C. Tur; M. Ungaro; M. F. Vineyard; A. V. Vlassov; K. Wang; D. P. Watts; L. B. Weinstein; D. P. Weygand; M. Williams; E. Wolin; M. H. Wood; A. Yegneswaran; J. Yun; L. Zana; J. Zhang; B. Zhao; Z. W. Zhao

doi:10.1103/PhysRevC.75.045203

Separated structure functions for the exclusive electroproduction of K+Λ and K+Σ0 final states

P. Ambrozewicz, D. S. Carman, R. J. Feuerbach, M. D. Mestayer, B. A. Raue, R. A. Schumacher, A. Tkabladze, M. J. Amarian, M. Anghinolfi, B. Asavapibhop, G. Asryan, H. Avakian, H. Bagdasaryan, N. Baillie, J. P. Ball, N. A. Baltzell, S. Barrow, V. Batourine, M. Battaglieri, K. BeardI. Bedlinskiy, M. Bektasoglu, M. Bellis, N. Benmouna, B. L. Berman, N. Bianchi, A. S. Biselli, B. E. Bonner, S. Bouchigny, S. Boiarinov, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, S. Bültmann, V. D. Burkert, C. Butuceanu, J. R. Calarco, S. L. Careccia, C. Cetina, S. Chen, P. L. Cole, P. Collins, P. Coltharp, D. Cords, P. Corvisiero, D. Crabb, V. Crede, J. P. Cummings, N. Dashyan, R. De Masi, R. De Vita, E. De Sanctis, P. V. Degtyarenko, L. Dennis, A. Deur, K. S. Dhuga, R. Dickson, C. Djalali, G. E. Dodge, J. Donnelly, D. Doughty, P. Dragovitsch, M. Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. El Fassi, L. Elouadrhiri, A. Empl, P. Eugenio, L. Farhi, R. Fatemi, G. Fedotov, G. Feldman, T. A. Forest, V. Frolov, H. Funsten, M. Garçon, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, P. Girard, F. X. Girod, J. T. Goetz, A. Gonenc, R. W. Gothe, K. A. Griffioen, M. Guidal, M. Guillo, N. Guler, L. Guo, V. Gyurjyan, K. Hafidi, H. Hakobyan, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, I. Hleiqawi, M. Holtrop, J. Hu, C. E. Hyde-Wright, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, E. L. Isupov, M. M. Ito, D. Jenkins, H. S. Jo, K. Joo, H. G. Juengst, N. Kalantarians, J. D. Kellie, M. Khandaker, K. Y. Kim, K. Kim, W. Kim, A. Klein, F. J. Klein, M. Klusman, M. Kossov, L. H. Kramer, V. Kubarovsky, J. Kuhn, S. E. Kuhn, S. V. Kuleshov, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, K. Livingston, H. Y. Lu, K. Lukashin, M. MacCormick, J. J. Manak, N. Markov, S. McAleer, B. McKinnon, J. W.C. McNabb, B. A. Mecking, C. A. Meyer, T. Mibe, K. Mikhailov, R. Minehart, M. Mirazita, R. Miskimen, V. Mokeev, K. Moriya, S. A. Morrow, M. Moteabbed, V. Muccifora, J. Mueller, G. S. Mutchler, P. Nadel-Turonski, J. Napolitano, R. Nasseripour, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, M. R. Niroula, R. A. Niyazov, M. Nozar, G. V. O'Rielly, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, C. Paterson, S. A. Philips, J. Pierce, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, S. Pozdniakov, B. M. Preedom, J. W. Price, Y. Prok, D. Protopopescu, L. M. Qin, G. Riccardi, G. Ricco, M. Ripani, B. G. Ritchie, F. Ronchetti, G. Rosner, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, J. Salamanca, C. Salgado, J. P. Santoro, V. Sapunenko, D. Sayre, V. S. Serov, A. Shafi, Y. G. Sharabian, N. V. Shvedunov, S. Simionatto, A. V. Skabelin, E. S. Smith, L. C. Smith, D. I. Sober, D. Sokhan, A. Stavinsky, S. S. Stepanyan, S. Stepanyan, B. E. Stokes, P. Stoler, I. I. Strakovsky, S. Strauch, M. Taiuti, S. Taylor, D. J. Tedeschi, R. Thompson, S. Tkachenko, C. Tur, M. Ungaro, M. F. Vineyard, A. V. Vlassov, K. Wang, D. P. Watts, L. B. Weinstein, D. P. Weygand, M. Williams, E. Wolin, M. H. Wood, A. Yegneswaran, J. Yun, L. Zana, J. Zhang, B. Zhao, Z. W. Zhao

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

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Abstract

We report measurements of the exclusive electroproduction of K+Λ and K+Σ0 final states from a proton target using the Continuous Electron Beam Accelerator Facility (CEBAF) large-acceptance spectrometer (CLAS) detector at the Thomas Jefferson National Accelerator Facility. The separated structure functions σT,σL,σTT, and σLT were extracted from the Φ- and ε-dependent differential cross sections taken with electron beam energies of 2.567, 4.056, and 4.247 GeV. This analysis represents the first σL/σT separation with the CLAS detector, and the first measurement of the kaon electroproduction structure functions away from parallel kinematics. The data span a broad range of momentum transfers from 0.5≤Q2≤2.8GeV2 and invariant energy from 1.6≤W≤2.4 GeV, while spanning nearly the full center-of-mass angular range of the kaon. The separated structure functions reveal clear differences between the production dynamics for the Λ and Σ0 hyperons. These results provide an unprecedented data sample with which to constrain current and future models for the associated production of strangeness, which will allow for a better understanding of the underlying resonant and nonresonant contributions to hyperon production.

Original language	English
Article number	045203
Journal	Physical Review C - Nuclear Physics
Volume	75
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.75.045203
State	Published - 9 Apr 2007

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10.1103/PhysRevC.75.045203

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Ambrozewicz, P., Carman, D. S., Feuerbach, R. J., Mestayer, M. D., Raue, B. A., Schumacher, R. A., Tkabladze, A., Amarian, M. J., Anghinolfi, M., Asavapibhop, B., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., Barrow, S., Batourine, V., Battaglieri, M., ... Zhao, Z. W. (2007). Separated structure functions for the exclusive electroproduction of K+Λ and K+Σ0 final states. Physical Review C - Nuclear Physics, 75(4), Article 045203. https://doi.org/10.1103/PhysRevC.75.045203

@article{ed05c03162774947bf16d55687169e61,

title = "Separated structure functions for the exclusive electroproduction of K+Λ and K+Σ0 final states",

abstract = "We report measurements of the exclusive electroproduction of K+Λ and K+Σ0 final states from a proton target using the Continuous Electron Beam Accelerator Facility (CEBAF) large-acceptance spectrometer (CLAS) detector at the Thomas Jefferson National Accelerator Facility. The separated structure functions σT,σL,σTT, and σLT were extracted from the Φ- and ε-dependent differential cross sections taken with electron beam energies of 2.567, 4.056, and 4.247 GeV. This analysis represents the first σL/σT separation with the CLAS detector, and the first measurement of the kaon electroproduction structure functions away from parallel kinematics. The data span a broad range of momentum transfers from 0.5≤Q2≤2.8GeV2 and invariant energy from 1.6≤W≤2.4 GeV, while spanning nearly the full center-of-mass angular range of the kaon. The separated structure functions reveal clear differences between the production dynamics for the Λ and Σ0 hyperons. These results provide an unprecedented data sample with which to constrain current and future models for the associated production of strangeness, which will allow for a better understanding of the underlying resonant and nonresonant contributions to hyperon production.",

author = "P. Ambrozewicz and Carman, {D. S.} and Feuerbach, {R. J.} and Mestayer, {M. D.} and Raue, {B. A.} and Schumacher, {R. A.} and A. Tkabladze and Amarian, {M. J.} and M. Anghinolfi and B. Asavapibhop and G. Asryan 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 Berman, {B. L.} and N. Bianchi and Biselli, {A. S.} and Bonner, {B. E.} and S. Bouchigny and S. Boiarinov 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 C. Cetina and S. Chen and Cole, {P. L.} and P. Collins and P. Coltharp and D. Cords and P. Corvisiero and D. Crabb and V. Crede and Cummings, {J. P.} and N. Dashyan and {De Masi}, R. and {De Vita}, R. and {De Sanctis}, E. and Degtyarenko, {P. V.} and L. Dennis and A. Deur and Dhuga, {K. S.} and R. Dickson 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 {El Fassi}, L. and L. Elouadrhiri and A. Empl and P. Eugenio and L. Farhi and R. Fatemi and G. Fedotov and G. Feldman and Forest, {T. A.} and V. Frolov and H. Funsten and M. Gar{\c c}on and G. Gavalian and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and P. Girard and Girod, {F. X.} and Goetz, {J. T.} and A. Gonenc and Gothe, {R. W.} and Griffioen, {K. A.} and M. Guidal and M. Guillo and N. Guler and L. Guo and V. Gyurjyan and K. Hafidi and H. Hakobyan and J. Hardie and D. Heddle and Hersman, {F. W.} and K. Hicks and I. Hleiqawi and M. Holtrop and J. Hu and Hyde-Wright, {C. E.} and Y. Ilieva and Ireland, {D. G.} and Ishkhanov, {B. S.} and Isupov, {E. L.} and Ito, {M. M.} and D. Jenkins and Jo, {H. S.} and K. Joo and Juengst, {H. G.} and N. Kalantarians and Kellie, {J. D.} and M. Khandaker and Kim, {K. Y.} and K. Kim and W. Kim and A. Klein and Klein, {F. J.} and M. Klusman and M. Kossov and Kramer, {L. H.} and V. Kubarovsky and J. Kuhn and Kuhn, {S. E.} and Kuleshov, {S. V.} and J. Lachniet and Laget, {J. M.} and J. Langheinrich and D. Lawrence and K. Livingston and Lu, {H. Y.} and K. Lukashin and M. MacCormick and Manak, {J. J.} and N. Markov and S. McAleer and B. McKinnon and McNabb, {J. W.C.} and Mecking, {B. A.} and Meyer, {C. A.} and T. Mibe and K. Mikhailov and R. Minehart and M. Mirazita and R. Miskimen and V. Mokeev and K. Moriya and Morrow, {S. A.} and M. Moteabbed and V. Muccifora and J. Mueller and Mutchler, {G. S.} and P. Nadel-Turonski and J. Napolitano and R. Nasseripour and S. Niccolai and G. Niculescu and I. Niculescu and Niczyporuk, {B. B.} and Niroula, {M. R.} and Niyazov, {R. A.} and M. Nozar and O'Rielly, {G. V.} and M. Osipenko and Ostrovidov, {A. I.} and K. Park and E. Pasyuk and C. Paterson and Philips, {S. A.} and J. Pierce and N. Pivnyuk and D. Pocanic and O. Pogorelko and E. Polli and S. Pozdniakov and Preedom, {B. M.} and Price, {J. W.} and Y. Prok and D. Protopopescu and Qin, {L. M.} and G. Riccardi and G. Ricco and M. Ripani and Ritchie, {B. G.} and F. Ronchetti and G. Rosner and P. Rossi and D. Rowntree and Rubin, {P. D.} and F. Sabati{\'e} and J. Salamanca and C. Salgado and Santoro, {J. P.} and V. Sapunenko and D. Sayre and Serov, {V. S.} and A. Shafi and Sharabian, {Y. G.} and Shvedunov, {N. V.} and S. Simionatto and Skabelin, {A. V.} and Smith, {E. S.} and Smith, {L. C.} and Sober, {D. I.} and D. Sokhan and A. Stavinsky and Stepanyan, {S. S.} and S. Stepanyan and Stokes, {B. E.} and P. Stoler and Strakovsky, {I. I.} and S. Strauch and M. Taiuti and S. Taylor and Tedeschi, {D. J.} and R. Thompson and S. Tkachenko and C. Tur and M. Ungaro and Vineyard, {M. F.} and Vlassov, {A. V.} and K. Wang and Watts, {D. P.} and Weinstein, {L. B.} and Weygand, {D. P.} and M. Williams and E. Wolin and Wood, {M. H.} and A. Yegneswaran and J. Yun and L. Zana and J. Zhang and B. Zhao and Zhao, {Z. W.}",

year = "2007",

month = apr,

day = "9",

doi = "10.1103/PhysRevC.75.045203",

language = "English",

volume = "75",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "4",

}

Ambrozewicz, P, Carman, DS, Feuerbach, RJ, Mestayer, MD, Raue, BA, Schumacher, RA, Tkabladze, A, Amarian, MJ, Anghinolfi, M, Asavapibhop, B, Asryan, 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, Berman, BL, Bianchi, N, Biselli, AS, Bonner, BE, Bouchigny, S, Boiarinov, S, Bradford, R, Branford, D, Briscoe, WJ, Brooks, WK, Bültmann, S, Burkert, VD, Butuceanu, C, Calarco, JR, Careccia, SL, Cetina, C, Chen, S, Cole, PL, Collins, P, Coltharp, P, Cords, D, Corvisiero, P, Crabb, D, Crede, V, Cummings, JP, Dashyan, N, De Masi, R, De Vita, R, De Sanctis, E, Degtyarenko, PV, Dennis, L, Deur, A, Dhuga, KS, Dickson, R, Djalali, C, Dodge, GE, Donnelly, J, Doughty, D, Dragovitsch, P, Dugger, M, Dytman, S, Dzyubak, OP, Egiyan, H, Egiyan, KS, El Fassi, L, Elouadrhiri, L, Empl, A, Eugenio, P, Farhi, L, Fatemi, R, Fedotov, G, Feldman, G, Forest, TA, Frolov, V, Funsten, H, Garçon, M, Gavalian, G, Gilfoyle, GP, Giovanetti, KL, Girard, P, Girod, FX, Goetz, JT, Gonenc, A, Gothe, RW, Griffioen, KA, Guidal, M, Guillo, M, Guler, N, Guo, L, Gyurjyan, V, Hafidi, K, Hakobyan, H, Hardie, J, Heddle, D, Hersman, FW, Hicks, K, Hleiqawi, I, Holtrop, M, Hu, J, Hyde-Wright, CE, Ilieva, Y, Ireland, DG, Ishkhanov, BS, Isupov, EL, Ito, MM, Jenkins, D, Jo, HS, Joo, K, Juengst, HG, Kalantarians, N, Kellie, JD, Khandaker, M, Kim, KY, Kim, K, Kim, W, Klein, A, Klein, FJ, Klusman, M, Kossov, M, Kramer, LH, Kubarovsky, V, Kuhn, J, Kuhn, SE, Kuleshov, SV, Lachniet, J, Laget, JM, Langheinrich, J, Lawrence, D, Livingston, K, Lu, HY, Lukashin, K, MacCormick, M, Manak, JJ, Markov, N, McAleer, S, McKinnon, B, McNabb, JWC, Mecking, BA, Meyer, CA, Mibe, T, Mikhailov, K, Minehart, R, Mirazita, M, Miskimen, R, Mokeev, V, Moriya, K, Morrow, SA, Moteabbed, M, Muccifora, V, Mueller, J, Mutchler, GS, Nadel-Turonski, P, Napolitano, J, Nasseripour, R, Niccolai, S, Niculescu, G, Niculescu, I, Niczyporuk, BB, Niroula, MR, Niyazov, RA, Nozar, M, O'Rielly, GV, Osipenko, M, Ostrovidov, AI, Park, K, Pasyuk, E, Paterson, C, Philips, SA, Pierce, J, Pivnyuk, N, Pocanic, D, Pogorelko, O, Polli, E, Pozdniakov, S, Preedom, BM, Price, JW, Prok, Y, Protopopescu, D, Qin, LM, Riccardi, G, Ricco, G, Ripani, M, Ritchie, BG, Ronchetti, F, Rosner, G, Rossi, P, Rowntree, D, Rubin, PD, Sabatié, F, Salamanca, J, Salgado, C, Santoro, JP, Sapunenko, V, Sayre, D, Serov, VS, Shafi, A, Sharabian, YG, Shvedunov, NV, Simionatto, S, Skabelin, AV, Smith, ES, Smith, LC, Sober, DI, Sokhan, D, Stavinsky, A, Stepanyan, SS, Stepanyan, S, Stokes, BE, Stoler, P, Strakovsky, II, Strauch, S, Taiuti, M, Taylor, S, Tedeschi, DJ, Thompson, R, Tkachenko, S, Tur, C, Ungaro, M, Vineyard, MF, Vlassov, AV, Wang, K, Watts, DP, Weinstein, LB, Weygand, DP, Williams, M, Wolin, E, Wood, MH, Yegneswaran, A, Yun, J, Zana, L, Zhang, J, Zhao, B & Zhao, ZW 2007, 'Separated structure functions for the exclusive electroproduction of K+Λ and K+Σ0 final states', Physical Review C - Nuclear Physics, vol. 75, no. 4, 045203. https://doi.org/10.1103/PhysRevC.75.045203

TY - JOUR

T1 - Separated structure functions for the exclusive electroproduction of K+Λ and K+Σ0 final states

AU - Ambrozewicz, P.

AU - Carman, D. S.

AU - Feuerbach, R. J.

AU - Mestayer, M. D.

AU - Raue, B. A.

AU - Schumacher, R. A.

AU - Tkabladze, A.

AU - Amarian, M. J.

AU - Anghinolfi, M.

AU - Asavapibhop, B.

AU - Asryan, 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 - Berman, B. L.

AU - Bianchi, N.

AU - Biselli, A. S.

AU - Bonner, B. E.

AU - Bouchigny, S.

AU - Boiarinov, 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 - Cetina, C.

AU - Chen, S.

AU - Cole, P. L.

AU - Collins, P.

AU - Coltharp, P.

AU - Cords, D.

AU - Corvisiero, P.

AU - Crabb, D.

AU - Crede, V.

AU - Cummings, J. P.

AU - Dashyan, N.

AU - De Masi, R.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Degtyarenko, P. V.

AU - Dennis, L.

AU - Deur, A.

AU - Dhuga, K. S.

AU - Dickson, R.

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 - El Fassi, L.

AU - Elouadrhiri, L.

AU - Empl, A.

AU - Eugenio, P.

AU - Farhi, L.

AU - Fatemi, R.

AU - Fedotov, G.

AU - Feldman, G.

AU - Forest, T. A.

AU - Frolov, V.

AU - Funsten, H.

AU - Garçon, M.

AU - Gavalian, G.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girard, P.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Gonenc, A.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Guillo, M.

AU - Guler, N.

AU - Guo, L.

AU - Gyurjyan, V.

AU - Hafidi, K.

AU - Hakobyan, H.

AU - Hardie, J.

AU - Heddle, D.

AU - Hersman, F. W.

AU - Hicks, K.

AU - Hleiqawi, I.

AU - Holtrop, M.

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PY - 2007/4/9

Y1 - 2007/4/9

N2 - We report measurements of the exclusive electroproduction of K+Λ and K+Σ0 final states from a proton target using the Continuous Electron Beam Accelerator Facility (CEBAF) large-acceptance spectrometer (CLAS) detector at the Thomas Jefferson National Accelerator Facility. The separated structure functions σT,σL,σTT, and σLT were extracted from the Φ- and ε-dependent differential cross sections taken with electron beam energies of 2.567, 4.056, and 4.247 GeV. This analysis represents the first σL/σT separation with the CLAS detector, and the first measurement of the kaon electroproduction structure functions away from parallel kinematics. The data span a broad range of momentum transfers from 0.5≤Q2≤2.8GeV2 and invariant energy from 1.6≤W≤2.4 GeV, while spanning nearly the full center-of-mass angular range of the kaon. The separated structure functions reveal clear differences between the production dynamics for the Λ and Σ0 hyperons. These results provide an unprecedented data sample with which to constrain current and future models for the associated production of strangeness, which will allow for a better understanding of the underlying resonant and nonresonant contributions to hyperon production.

AB - We report measurements of the exclusive electroproduction of K+Λ and K+Σ0 final states from a proton target using the Continuous Electron Beam Accelerator Facility (CEBAF) large-acceptance spectrometer (CLAS) detector at the Thomas Jefferson National Accelerator Facility. The separated structure functions σT,σL,σTT, and σLT were extracted from the Φ- and ε-dependent differential cross sections taken with electron beam energies of 2.567, 4.056, and 4.247 GeV. This analysis represents the first σL/σT separation with the CLAS detector, and the first measurement of the kaon electroproduction structure functions away from parallel kinematics. The data span a broad range of momentum transfers from 0.5≤Q2≤2.8GeV2 and invariant energy from 1.6≤W≤2.4 GeV, while spanning nearly the full center-of-mass angular range of the kaon. The separated structure functions reveal clear differences between the production dynamics for the Λ and Σ0 hyperons. These results provide an unprecedented data sample with which to constrain current and future models for the associated production of strangeness, which will allow for a better understanding of the underlying resonant and nonresonant contributions to hyperon production.

UR - http://www.scopus.com/inward/record.url?scp=34147178789&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.75.045203

DO - 10.1103/PhysRevC.75.045203

M3 - Article

AN - SCOPUS:34147178789

SN - 0556-2813

VL - 75

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 045203

ER -

Separated structure functions for the exclusive electroproduction of K+Λ and K+Σ0 final states

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