Differential cross section and recoil polarization measurements for the γp→K+Λ reaction using CLAS at Jefferson Lab

M. E. McCracken; M. Bellis; C. A. Meyer; M. Williams; K. P. Adhikari; M. Anghinolfi; J. Ball; M. Battaglieri; B. L. Berman; A. S. Biselli; D. Branford; W. J. Briscoe; W. K. Brooks; V. D. Burkert; S. L. Careccia; D. S. Carman; P. L. Cole; P. Collins; V. Crede; A. D'Angelo; A. Daniel; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; B. Dey; S. Dhamija; R. Dickson; C. Djalali; D. Doughty; M. Dugger; R. Dupre; A. El Alaoui; P. Eugenio; S. Fegan; A. Fradi; M. Y. Gabrielyan; K. L. Giovanetti; F. X. Girod; J. T. Goetz; W. Gohn; R. W. Gothe; K. A. Griffioen; M. Guidal; K. Hafidi; H. Hakobyanm; C. Hanretty; N. Hassall; K. Hicks; M. Holtrop; Y. Ilieva; D. G. Ireland; H. S. Jo; D. Keller; M. Khandaker; P. Khetarpal; W. Kim; A. Klein; F. J. Klein; V. Kubarovsky; S. V. Kuleshov; V. Kuznetsov; K. Livingston; M. Mayer; J. McAndrew; B. McKinnon; M. D. Mestayer; T. Mineeva; M. Mirazita; V. Mokeev; B. Moreno; K. Moriya; B. Morrison; H. Moutarde; E. Munevar; P. Nadel-Turonski; S. Niccolai; G. Niculescu; I. Niculescu; M. Osipenko; A. I. Ostrovidov; K. Park; S. Park; E. Pasyuk; S. Anefalos Pereira; Y. Perrin; S. Pisano; O. Pogorelko; S. Pozdniakov; J. W. Price; S. Procureur; Y. Prok; D. Protopopescu; B. Quinn; B. A. Raue; G. Ricco; M. Ripani; B. G. Ritchie; G. Rosner; P. Rossi; F. Sabatié; M. S. Saini; J. Salamanca; D. Schott; R. A. Schumacher; E. Seder; H. Seraydaryan; Y. G. Sharabian; D. I. Sober; D. Sokhan; S. S. Stepanyan; P. Stoler; S. Strauch; M. Taiuti; D. J. Tedeschi; S. Tkachenko; M. Ungaro; B. Vernarsky; M. F. Vineyard; D. Watts; E. Voutier; L. B. Weinstein; D. P. Weygand; M. H. Wood; L. Zana

doi:10.1103/PhysRevC.81.025201

Differential cross section and recoil polarization measurements for the γp→K⁺Λ reaction using CLAS at Jefferson Lab

M. E. McCracken, M. Bellis, C. A. Meyer, M. Williams, K. P. Adhikari, M. Anghinolfi, J. Ball, M. Battaglieri, B. L. Berman, A. S. Biselli, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, S. L. Careccia, D. S. Carman, P. L. Cole, P. Collins, V. Crede, A. D'AngeloA. Daniel, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, B. Dey, S. Dhamija, R. Dickson, C. Djalali, D. Doughty, M. Dugger, R. Dupre, A. El Alaoui, P. Eugenio, S. Fegan, A. Fradi, M. Y. Gabrielyan, K. L. Giovanetti, F. X. Girod, J. T. Goetz, W. Gohn, R. W. Gothe, K. A. Griffioen, M. Guidal, K. Hafidi, H. Hakobyanm, C. Hanretty, N. Hassall, K. Hicks, M. Holtrop, Y. Ilieva, D. G. Ireland, H. S. Jo, D. Keller, M. Khandaker, P. Khetarpal, W. Kim, A. Klein, F. J. Klein, V. Kubarovsky, S. V. Kuleshov, V. Kuznetsov, K. Livingston, M. Mayer, J. McAndrew, B. McKinnon, M. D. Mestayer, T. Mineeva, M. Mirazita, V. Mokeev, B. Moreno, K. Moriya, B. Morrison, H. Moutarde, E. Munevar, P. Nadel-Turonski, S. Niccolai, G. Niculescu, I. Niculescu, M. Osipenko, A. I. Ostrovidov, K. Park, S. Park, E. Pasyuk, S. Anefalos Pereira, Y. Perrin, S. Pisano, O. Pogorelko, S. Pozdniakov, J. W. Price, S. Procureur, Y. Prok, D. Protopopescu, B. Quinn, B. A. Raue, G. Ricco, M. Ripani, B. G. Ritchie, G. Rosner, P. Rossi, F. Sabatié, M. S. Saini, J. Salamanca, D. Schott, R. A. Schumacher, E. Seder, H. Seraydaryan, Y. G. Sharabian, D. I. Sober, D. Sokhan, S. S. Stepanyan, P. Stoler, S. Strauch, M. Taiuti, D. J. Tedeschi, S. Tkachenko, M. Ungaro, B. Vernarsky, M. F. Vineyard, D. Watts, E. Voutier, L. B. Weinstein, D. P. Weygand, M. H. Wood, L. Zana

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Abstract

We present measurements of the differential cross section and Λ recoil polarization for the γp→K⁺Λ reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K⁺ production angles. Independent analyses were performed using the K⁺pπ^- and K⁺p (missing π^-) final-state topologies; results from these analyses were found to exhibit good agreement. These differential-cross-section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300-MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500-MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of nonresonant K⁺Λ photoproduction mechanisms at all production angles.

Original language	English
Article number	025201
Journal	Physical Review C - Nuclear Physics
Volume	81
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.81.025201
State	Published - 11 Feb 2010

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10.1103/PhysRevC.81.025201

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McCracken, M. E., Bellis, M., Meyer, C. A., Williams, M., Adhikari, K. P., Anghinolfi, M., Ball, J., Battaglieri, M., Berman, B. L., Biselli, A. S., Branford, D., Briscoe, W. J., Brooks, W. K., Burkert, V. D., Careccia, S. L., Carman, D. S., Cole, P. L., Collins, P., Crede, V., ... Zana, L. (2010). Differential cross section and recoil polarization measurements for the γp→K⁺Λ reaction using CLAS at Jefferson Lab. Physical Review C - Nuclear Physics, 81(2), Article 025201. https://doi.org/10.1103/PhysRevC.81.025201

@article{d1b0130d9c0a4f23b0dd7a7193e46e5b,

title = "Differential cross section and recoil polarization measurements for the γp→K+Λ reaction using CLAS at Jefferson Lab",

abstract = "We present measurements of the differential cross section and Λ recoil polarization for the γp→K+Λ reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K+ production angles. Independent analyses were performed using the K+pπ- and K+p (missing π-) final-state topologies; results from these analyses were found to exhibit good agreement. These differential-cross-section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300-MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500-MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of nonresonant K+Λ photoproduction mechanisms at all production angles.",

author = "McCracken, {M. E.} and M. Bellis and Meyer, {C. A.} and M. Williams and Adhikari, {K. P.} and M. Anghinolfi and J. Ball and M. Battaglieri and Berman, {B. L.} and Biselli, {A. S.} and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and Burkert, {V. D.} and Careccia, {S. L.} and Carman, {D. S.} and Cole, {P. L.} and P. Collins 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 S. Dhamija and R. Dickson and C. Djalali and D. Doughty and M. Dugger and R. Dupre and {El Alaoui}, A. and P. Eugenio and S. Fegan and A. Fradi and Gabrielyan, {M. Y.} and Giovanetti, {K. L.} and Girod, {F. X.} and Goetz, {J. T.} and W. Gohn and Gothe, {R. W.} and Griffioen, {K. A.} and M. Guidal and K. Hafidi and H. Hakobyanm and C. Hanretty and N. Hassall and K. Hicks and M. Holtrop and Y. Ilieva and Ireland, {D. G.} and Jo, {H. S.} and D. Keller and M. Khandaker and P. Khetarpal and W. Kim and A. Klein and Klein, {F. J.} and V. Kubarovsky and Kuleshov, {S. V.} and V. Kuznetsov and K. Livingston and M. Mayer and J. McAndrew and B. McKinnon and Mestayer, {M. D.} and T. Mineeva and M. Mirazita and V. Mokeev and B. Moreno and K. Moriya and B. Morrison and H. Moutarde and E. Munevar and P. Nadel-Turonski and S. Niccolai and G. Niculescu and I. Niculescu and M. Osipenko and Ostrovidov, {A. I.} and K. Park and S. Park and E. Pasyuk and Pereira, {S. Anefalos} and Y. Perrin and S. Pisano and O. Pogorelko and S. Pozdniakov and Price, {J. W.} and S. Procureur and Y. Prok and D. Protopopescu and B. Quinn and Raue, {B. A.} and G. Ricco and M. Ripani and Ritchie, {B. G.} and G. Rosner and P. Rossi and F. Sabati{\'e} and Saini, {M. S.} and J. Salamanca and D. Schott and Schumacher, {R. A.} and E. Seder and H. Seraydaryan and Sharabian, {Y. G.} and Sober, {D. I.} and D. Sokhan and Stepanyan, {S. S.} and P. Stoler and S. Strauch and M. Taiuti and Tedeschi, {D. J.} and S. Tkachenko and M. Ungaro and B. Vernarsky and Vineyard, {M. F.} and D. Watts and E. Voutier and Weinstein, {L. B.} and Weygand, {D. P.} and Wood, {M. H.} and L. Zana",

year = "2010",

month = feb,

day = "11",

doi = "10.1103/PhysRevC.81.025201",

language = "English",

volume = "81",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "2",

}

McCracken, ME, Bellis, M, Meyer, CA, Williams, M, Adhikari, KP, Anghinolfi, M, Ball, J, Battaglieri, M, Berman, BL, Biselli, AS, Branford, D, Briscoe, WJ, Brooks, WK, Burkert, VD, Careccia, SL, Carman, DS, Cole, PL, Collins, P, Crede, V, D'Angelo, A, Daniel, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Dey, B, Dhamija, S, Dickson, R, Djalali, C, Doughty, D, Dugger, M, Dupre, R, El Alaoui, A, Eugenio, P, Fegan, S, Fradi, A, Gabrielyan, MY, Giovanetti, KL, Girod, FX, Goetz, JT, Gohn, W, Gothe, RW, Griffioen, KA, Guidal, M, Hafidi, K, Hakobyanm, H, Hanretty, C, Hassall, N, Hicks, K, Holtrop, M, Ilieva, Y, Ireland, DG, Jo, HS, Keller, D, Khandaker, M, Khetarpal, P, Kim, W, Klein, A, Klein, FJ, Kubarovsky, V, Kuleshov, SV, Kuznetsov, V, Livingston, K, Mayer, M, McAndrew, J, McKinnon, B, Mestayer, MD, Mineeva, T, Mirazita, M, Mokeev, V, Moreno, B, Moriya, K, Morrison, B, Moutarde, H, Munevar, E, Nadel-Turonski, P, Niccolai, S, Niculescu, G, Niculescu, I, Osipenko, M, Ostrovidov, AI, Park, K, Park, S, Pasyuk, E, Pereira, SA, Perrin, Y, Pisano, S, Pogorelko, O, Pozdniakov, S, Price, JW, Procureur, S, Prok, Y, Protopopescu, D, Quinn, B, Raue, BA, Ricco, G, Ripani, M, Ritchie, BG, Rosner, G, Rossi, P, Sabatié, F, Saini, MS, Salamanca, J, Schott, D, Schumacher, RA, Seder, E, Seraydaryan, H, Sharabian, YG, Sober, DI, Sokhan, D, Stepanyan, SS, Stoler, P, Strauch, S, Taiuti, M, Tedeschi, DJ, Tkachenko, S, Ungaro, M, Vernarsky, B, Vineyard, MF, Watts, D, Voutier, E, Weinstein, LB, Weygand, DP, Wood, MH & Zana, L 2010, 'Differential cross section and recoil polarization measurements for the γp→K⁺Λ reaction using CLAS at Jefferson Lab', Physical Review C - Nuclear Physics, vol. 81, no. 2, 025201. https://doi.org/10.1103/PhysRevC.81.025201

TY - JOUR

T1 - Differential cross section and recoil polarization measurements for the γp→K+Λ reaction using CLAS at Jefferson Lab

AU - McCracken, M. E.

AU - Bellis, M.

AU - Meyer, C. A.

AU - Williams, M.

AU - Adhikari, K. P.

AU - Anghinolfi, M.

AU - Ball, J.

AU - Battaglieri, M.

AU - Berman, B. L.

AU - Biselli, A. S.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Careccia, S. L.

AU - Carman, D. S.

AU - Cole, P. L.

AU - Collins, P.

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 - Dhamija, S.

AU - Dickson, R.

AU - Djalali, C.

AU - Doughty, D.

AU - Dugger, M.

AU - Dupre, R.

AU - El Alaoui, A.

AU - Eugenio, P.

AU - Fegan, S.

AU - Fradi, A.

AU - Gabrielyan, M. Y.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Gohn, W.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Hafidi, K.

AU - Hakobyanm, 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 - Keller, D.

AU - Khandaker, M.

AU - Khetarpal, P.

AU - Kim, W.

AU - Klein, A.

AU - Klein, F. J.

AU - Kubarovsky, V.

AU - Kuleshov, S. V.

AU - Kuznetsov, V.

AU - Livingston, K.

AU - Mayer, M.

AU - McAndrew, J.

AU - McKinnon, B.

AU - Mestayer, M. D.

AU - Mineeva, T.

AU - Mirazita, M.

AU - Mokeev, V.

AU - Moreno, B.

AU - Moriya, K.

AU - Morrison, B.

AU - Moutarde, H.

AU - Munevar, E.

AU - Nadel-Turonski, P.

AU - Niccolai, S.

AU - Niculescu, G.

AU - Niculescu, I.

AU - Osipenko, M.

AU - Ostrovidov, A. I.

AU - Park, K.

AU - Park, S.

AU - Pasyuk, E.

AU - Pereira, S. Anefalos

AU - Perrin, Y.

AU - Pisano, S.

AU - Pogorelko, O.

AU - Pozdniakov, S.

AU - Price, J. W.

AU - Procureur, S.

AU - Prok, Y.

AU - Protopopescu, D.

AU - Quinn, B.

AU - Raue, B. A.

AU - Ricco, G.

AU - Ripani, M.

AU - Ritchie, B. G.

AU - Rosner, G.

AU - Rossi, P.

AU - Sabatié, F.

AU - Saini, M. S.

AU - Salamanca, J.

AU - Schott, D.

AU - Schumacher, R. A.

AU - Seder, E.

AU - Seraydaryan, H.

AU - Sharabian, Y. G.

AU - Sober, D. I.

AU - Sokhan, D.

AU - Stepanyan, S. S.

AU - Stoler, P.

AU - Strauch, S.

AU - Taiuti, M.

AU - Tedeschi, D. J.

AU - Tkachenko, S.

AU - Ungaro, M.

AU - Vernarsky, B.

AU - Vineyard, M. F.

AU - Watts, D.

AU - Voutier, E.

AU - Weinstein, L. B.

AU - Weygand, D. P.

AU - Wood, M. H.

AU - Zana, L.

PY - 2010/2/11

Y1 - 2010/2/11

N2 - We present measurements of the differential cross section and Λ recoil polarization for the γp→K+Λ reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K+ production angles. Independent analyses were performed using the K+pπ- and K+p (missing π-) final-state topologies; results from these analyses were found to exhibit good agreement. These differential-cross-section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300-MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500-MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of nonresonant K+Λ photoproduction mechanisms at all production angles.

AB - We present measurements of the differential cross section and Λ recoil polarization for the γp→K+Λ reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K+ production angles. Independent analyses were performed using the K+pπ- and K+p (missing π-) final-state topologies; results from these analyses were found to exhibit good agreement. These differential-cross-section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300-MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500-MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of nonresonant K+Λ photoproduction mechanisms at all production angles.

UR - http://www.scopus.com/inward/record.url?scp=77649208706&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.81.025201

DO - 10.1103/PhysRevC.81.025201

M3 - Article

AN - SCOPUS:77649208706

SN - 0556-2813

VL - 81

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 2

M1 - 025201

ER -

Differential cross section and recoil polarization measurements for the γp→K⁺Λ reaction using CLAS at Jefferson Lab

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