Measurement of the differential cross section for the reaction γn→π-p from deuterium

W. Chen; T. Mibe; D. Dutta; H. Gao; J. M. Laget; M. Mirazita; P. Rossi; S. Stepanyan; I. I. Strakovsky; M. J. Amaryan; M. Anghinolfi; H. Bagdasaryan; M. Battaglieri; M. Bellis; B. L. Berman; A. S. Biselli; C. Bookwalter; D. Branford; W. J. Briscoe; W. K. Brooks; V. D. Burkert; S. L. Careccia; D. S. Carman; L. Casey; P. L. Cole; P. Collins; V. Crede; A. Daniel; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; S. Dhamija; R. Dickson; C. Djalali; G. E. Dodge; D. Doughty; H. Egiyan; P. Eugenio; G. Fedotov; A. Fradi; M. Garçon; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; W. Gohn; R. W. Gothe; K. A. Griffioen; M. Guidal; H. Hakobyan; C. Hanretty; N. Hassall; D. Heddle; K. Hicks; M. Holtrop; C. E. Hyde; Y. Ilieva; D. G. Ireland; B. S. Ishkhanov; E. L. Isupov; H. S. Jo; J. R. Johnstone; K. Joo; D. Keller; M. Khandaker; P. Khetarpal; W. Kim; A. Klein; F. J. Klein; L. H. Kramer; V. Kubarovsky; S. E. Kuhn; S. V. Kuleshov; V. Kuznetsov; K. Livingston; H. Y. Lu; N. Markov; M. E. McCracken; B. McKinnon; C. A. Meyer; T. T. Mineeva; V. Mokeev; B. Moreno; K. Moriya; P. Nadel-Turonski; R. Nasseripour; S. Niccolai; I. Niculescu; M. R. Niroula; M. Osipenko; A. I. Ostrovidov; K. Park; S. Park; S. Anefalos Pereira; O. Pogorelko; S. Pozdniakov; J. W. Price; S. Procureur; D. Protopopescu; B. A. Raue; G. Ricco; M. Ripani; Barry Ritchie; G. Rosner; F. Sabatié; M. S. Saini; J. Salamanca; C. Salgado; R. A. Schumacher; Y. G. Sharabian; D. I. Sober; D. Sokhan; S. S. Stepanyan; S. Strauch; M. Taiuti; D. J. Tedeschi; S. Tkachenko; M. Ungaro; M. F. Vineyard; D. P. Watts; L. B. Weinstein; D. P. Weygand; M. H. Wood; A. Yegneswaran; J. Zhang; B. Zhao

doi:10.1103/PhysRevLett.103.012301

Measurement of the differential cross section for the reaction γn→π-p from deuterium

W. Chen, T. Mibe, D. Dutta, H. Gao, J. M. Laget, M. Mirazita, P. Rossi, S. Stepanyan, I. I. Strakovsky, M. J. Amaryan, M. Anghinolfi, H. Bagdasaryan, M. Battaglieri, M. Bellis, B. L. Berman, A. S. Biselli, C. Bookwalter, D. Branford, W. J. Briscoe, W. K. BrooksV. D. Burkert, S. L. Careccia, D. S. Carman, L. Casey, P. L. Cole, P. Collins, V. Crede, A. Daniel, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, S. Dhamija, R. Dickson, C. Djalali, G. E. Dodge, D. Doughty, H. Egiyan, P. Eugenio, G. Fedotov, A. Fradi, M. Garçon, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, W. Gohn, R. W. Gothe, K. A. Griffioen, M. Guidal, H. Hakobyan, C. Hanretty, N. Hassall, D. Heddle, K. Hicks, M. Holtrop, C. E. Hyde, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, E. L. Isupov, H. S. Jo, J. R. Johnstone, K. Joo, D. Keller, M. Khandaker, P. Khetarpal, W. Kim, A. Klein, F. J. Klein, L. H. Kramer, V. Kubarovsky, S. E. Kuhn, S. V. Kuleshov, V. Kuznetsov, K. Livingston, H. Y. Lu, N. Markov, M. E. McCracken, B. McKinnon, C. A. Meyer, T. T. Mineeva, V. Mokeev, B. Moreno, K. Moriya, P. Nadel-Turonski, R. Nasseripour, S. Niccolai, I. Niculescu, M. R. Niroula, M. Osipenko, A. I. Ostrovidov, K. Park, S. Park, S. Anefalos Pereira, O. Pogorelko, S. Pozdniakov, J. W. Price, S. Procureur, D. Protopopescu, B. A. Raue, G. Ricco, M. Ripani, Barry Ritchie, G. Rosner, F. Sabatié, M. S. Saini, J. Salamanca, C. Salgado, R. A. Schumacher, Y. G. Sharabian, D. I. Sober, D. Sokhan, S. S. Stepanyan, S. Strauch, M. Taiuti, D. J. Tedeschi, S. Tkachenko, M. Ungaro, M. F. Vineyard, D. P. Watts, L. B. Weinstein, D. P. Weygand, M. H. Wood, A. Yegneswaran, J. Zhang, B. Zhao

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Abstract

We report a measurement of the differential cross section for the γn→π-p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5GeV and pion center-of-mass (c.m.) angles (θc.m.) between 50°and 115°. We confirm a previous indication of a broad enhancement around a c.m. energy (s) of 2.1GeV at θc.m.=90°in the scaled differential cross section s7dσdt and a rapid falloff in a center-of-mass energy region of about 400MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for θc.m. from 70°to 105°.

Original language	English (US)
Article number	012301
Journal	Physical Review Letters
Volume	103
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.103.012301
State	Published - Aug 6 2009

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.103.012301

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Chen, W., Mibe, T., Dutta, D., Gao, H., Laget, J. M., Mirazita, M., Rossi, P., Stepanyan, S., Strakovsky, I. I., Amaryan, M. J., Anghinolfi, M., Bagdasaryan, H., Battaglieri, M., Bellis, M., Berman, B. L., Biselli, A. S., Bookwalter, C., Branford, D., Briscoe, W. J., ... Zhao, B. (2009). Measurement of the differential cross section for the reaction γn→π-p from deuterium. Physical Review Letters, 103(1), Article 012301. https://doi.org/10.1103/PhysRevLett.103.012301

Chen, W, Mibe, T, Dutta, D, Gao, H, Laget, JM, Mirazita, M, Rossi, P, Stepanyan, S, Strakovsky, II, Amaryan, MJ, Anghinolfi, M, Bagdasaryan, H, Battaglieri, M, Bellis, M, Berman, BL, Biselli, AS, Bookwalter, C, Branford, D, Briscoe, WJ, Brooks, WK, Burkert, VD, Careccia, SL, Carman, DS, Casey, L, Cole, PL, Collins, P, Crede, V, Daniel, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Dhamija, S, Dickson, R, Djalali, C, Dodge, GE, Doughty, D, Egiyan, H, Eugenio, P, Fedotov, G, Fradi, A, Garçon, M, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Gohn, W, Gothe, RW, Griffioen, KA, Guidal, M, Hakobyan, H, Hanretty, C, Hassall, N, Heddle, D, Hicks, K, Holtrop, M, Hyde, CE, Ilieva, Y, Ireland, DG, Ishkhanov, BS, Isupov, EL, Jo, HS, Johnstone, JR, Joo, K, Keller, D, Khandaker, M, Khetarpal, P, Kim, W, Klein, A, Klein, FJ, Kramer, LH, Kubarovsky, V, Kuhn, SE, Kuleshov, SV, Kuznetsov, V, Livingston, K, Lu, HY, Markov, N, McCracken, ME, McKinnon, B, Meyer, CA, Mineeva, TT, Mokeev, V, Moreno, B, Moriya, K, Nadel-Turonski, P, Nasseripour, R, Niccolai, S, Niculescu, I, Niroula, MR, Osipenko, M, Ostrovidov, AI, Park, K, Park, S, Pereira, SA, Pogorelko, O, Pozdniakov, S, Price, JW, Procureur, S, Protopopescu, D, Raue, BA, Ricco, G, Ripani, M, Ritchie, B, Rosner, G, Sabatié, F, Saini, MS, Salamanca, J, Salgado, C, Schumacher, RA, Sharabian, YG, Sober, DI, Sokhan, D, Stepanyan, SS, Strauch, S, Taiuti, M, Tedeschi, DJ, Tkachenko, S, Ungaro, M, Vineyard, MF, Watts, DP, Weinstein, LB, Weygand, DP, Wood, MH, Yegneswaran, A, Zhang, J & Zhao, B 2009, 'Measurement of the differential cross section for the reaction γn→π-p from deuterium', Physical Review Letters, vol. 103, no. 1, 012301. https://doi.org/10.1103/PhysRevLett.103.012301

@article{54115af879cf4d6fabe19b5469db4d8b,

title = "Measurement of the differential cross section for the reaction γn→π-p from deuterium",

abstract = "We report a measurement of the differential cross section for the γn→π-p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5GeV and pion center-of-mass (c.m.) angles (θc.m.) between 50°and 115°. We confirm a previous indication of a broad enhancement around a c.m. energy (s) of 2.1GeV at θc.m.=90°in the scaled differential cross section s7dσdt and a rapid falloff in a center-of-mass energy region of about 400MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for θc.m. from 70°to 105°.",

author = "W. Chen and T. Mibe and D. Dutta and H. Gao and Laget, {J. M.} and M. Mirazita and P. Rossi and S. Stepanyan and Strakovsky, {I. I.} and Amaryan, {M. J.} and M. Anghinolfi and H. Bagdasaryan and M. Battaglieri and M. Bellis and Berman, {B. L.} and Biselli, {A. S.} and C. Bookwalter and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and Burkert, {V. D.} and Careccia, {S. L.} and Carman, {D. S.} and L. Casey 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 R. Dickson and C. Djalali and Dodge, {G. E.} and D. Doughty and H. Egiyan and P. Eugenio and G. Fedotov and A. Fradi and M. Gar{\c c}on and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and Girod, {F. X.} and W. Gohn and Gothe, {R. W.} and Griffioen, {K. A.} and M. Guidal and H. Hakobyan and C. Hanretty and N. Hassall and D. Heddle and K. Hicks and M. Holtrop and Hyde, {C. E.} and Y. Ilieva and Ireland, {D. G.} and Ishkhanov, {B. S.} and Isupov, {E. L.} and Jo, {H. S.} and Johnstone, {J. R.} and K. Joo and D. Keller and M. Khandaker and P. Khetarpal and W. Kim and A. Klein and Klein, {F. J.} and Kramer, {L. H.} and V. Kubarovsky and Kuhn, {S. E.} and Kuleshov, {S. V.} and V. Kuznetsov and K. Livingston and Lu, {H. Y.} and N. Markov and McCracken, {M. E.} and B. McKinnon and Meyer, {C. A.} and Mineeva, {T. T.} and V. Mokeev and B. Moreno and K. Moriya and P. Nadel-Turonski and R. Nasseripour and S. Niccolai and I. Niculescu and Niroula, {M. R.} and M. Osipenko and Ostrovidov, {A. I.} and K. Park and S. Park and Pereira, {S. Anefalos} and O. Pogorelko and S. Pozdniakov and Price, {J. W.} and S. Procureur and D. Protopopescu and Raue, {B. A.} and G. Ricco and M. Ripani and Barry Ritchie and G. Rosner and F. Sabati{\'e} and Saini, {M. S.} and J. Salamanca and C. Salgado and Schumacher, {R. A.} and Sharabian, {Y. G.} and Sober, {D. I.} and D. Sokhan and Stepanyan, {S. S.} and S. Strauch and M. Taiuti and Tedeschi, {D. J.} and S. Tkachenko and M. Ungaro and Vineyard, {M. F.} and Watts, {D. P.} and Weinstein, {L. B.} and Weygand, {D. P.} and Wood, {M. H.} and A. Yegneswaran and J. Zhang and B. Zhao",

year = "2009",

month = aug,

day = "6",

doi = "10.1103/PhysRevLett.103.012301",

language = "English (US)",

volume = "103",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - Measurement of the differential cross section for the reaction γn→π-p from deuterium

AU - Chen, W.

AU - Mibe, T.

AU - Dutta, D.

AU - Gao, H.

AU - Laget, J. M.

AU - Mirazita, M.

AU - Rossi, P.

AU - Stepanyan, S.

AU - Strakovsky, I. I.

AU - Amaryan, M. J.

AU - Anghinolfi, M.

AU - Bagdasaryan, H.

AU - Battaglieri, M.

AU - Bellis, M.

AU - Berman, B. L.

AU - Biselli, A. S.

AU - Bookwalter, C.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Careccia, S. L.

AU - Carman, D. S.

AU - Casey, L.

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 - Dickson, R.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Doughty, D.

AU - Egiyan, H.

AU - Eugenio, P.

AU - Fedotov, G.

AU - Fradi, A.

AU - Garçon, M.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Gohn, W.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Hakobyan, H.

AU - Hanretty, C.

AU - Hassall, N.

AU - Heddle, D.

AU - Hicks, K.

AU - Holtrop, M.

AU - Hyde, C. E.

AU - Ilieva, Y.

AU - Ireland, D. G.

AU - Ishkhanov, B. S.

AU - Isupov, E. L.

AU - Jo, H. S.

AU - Johnstone, J. R.

AU - Joo, K.

AU - Keller, D.

AU - Khandaker, M.

AU - Khetarpal, P.

AU - Kim, W.

AU - Klein, A.

AU - Klein, F. J.

AU - Kramer, L. H.

AU - Kubarovsky, V.

AU - Kuhn, S. E.

AU - Kuleshov, S. V.

AU - Kuznetsov, V.

AU - Livingston, K.

AU - Lu, H. Y.

AU - Markov, N.

AU - McCracken, M. E.

AU - McKinnon, B.

AU - Meyer, C. A.

AU - Mineeva, T. T.

AU - Mokeev, V.

AU - Moreno, B.

AU - Moriya, K.

AU - Nadel-Turonski, P.

AU - Nasseripour, R.

AU - Niccolai, S.

AU - Niculescu, I.

AU - Niroula, M. R.

AU - Osipenko, M.

AU - Ostrovidov, A. I.

AU - Park, K.

AU - Park, S.

AU - Pereira, S. Anefalos

AU - Pogorelko, O.

AU - Pozdniakov, S.

AU - Price, J. W.

AU - Procureur, S.

AU - Protopopescu, D.

AU - Raue, B. A.

AU - Ricco, G.

AU - Ripani, M.

AU - Ritchie, Barry

AU - Rosner, G.

AU - Sabatié, F.

AU - Saini, M. S.

AU - Salamanca, J.

AU - Salgado, C.

AU - Schumacher, R. A.

AU - Sharabian, Y. G.

AU - Sober, D. I.

AU - Sokhan, D.

AU - Stepanyan, S. S.

AU - Strauch, S.

AU - Taiuti, M.

AU - Tedeschi, D. J.

AU - Tkachenko, S.

AU - Ungaro, M.

AU - Vineyard, M. F.

AU - Watts, D. P.

AU - Weinstein, L. B.

AU - Weygand, D. P.

AU - Wood, M. H.

AU - Yegneswaran, A.

AU - Zhang, J.

AU - Zhao, B.

PY - 2009/8/6

Y1 - 2009/8/6

N2 - We report a measurement of the differential cross section for the γn→π-p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5GeV and pion center-of-mass (c.m.) angles (θc.m.) between 50°and 115°. We confirm a previous indication of a broad enhancement around a c.m. energy (s) of 2.1GeV at θc.m.=90°in the scaled differential cross section s7dσdt and a rapid falloff in a center-of-mass energy region of about 400MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for θc.m. from 70°to 105°.

AB - We report a measurement of the differential cross section for the γn→π-p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5GeV and pion center-of-mass (c.m.) angles (θc.m.) between 50°and 115°. We confirm a previous indication of a broad enhancement around a c.m. energy (s) of 2.1GeV at θc.m.=90°in the scaled differential cross section s7dσdt and a rapid falloff in a center-of-mass energy region of about 400MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for θc.m. from 70°to 105°.

UR - http://www.scopus.com/inward/record.url?scp=68649101458&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=68649101458&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.103.012301

DO - 10.1103/PhysRevLett.103.012301

M3 - Article

AN - SCOPUS:68649101458

SN - 0031-9007

VL - 103

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

M1 - 012301

ER -

Measurement of the differential cross section for the reaction γn→π-p from deuterium

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