Search for the photoexcitation of exotic mesons in the π+π+π- system

M. Nozar; C. Salgado; D. P. Weygand; L. Guo; G. Adams; Ji Li; P. Eugenio; M. J. Amaryan; M. Anghinolfi; G. Asryan; H. Avakian; H. Bagdasaryan; N. Baillie; J. P. Ball; N. A. Baltzell; S. Barrow; M. Battaglieri; I. Bedlinskiy; M. Bektasoglu; M. Bellis; N. Benmouna; B. L. Berman; A. S. Biselli; L. Blaszczyk; 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; D. S. Carman; B. Carnahan; L. Casey; A. Cazes; S. Chen; L. Cheng; P. L. Cole; P. Collins; P. Coltharp; D. Cords; P. Corvisiero; D. Crabb; H. Crannell; V. Crede; J. P. Cummings; D. Dale; N. Dashyan; R. De Masi; R. De Vita; E. De Sanctis; P. V. Degtyarenko; H. Denizli; L. Dennis; A. Deur; K. V. Dharmawardane; K. S. Dhuga; R. Dickson; C. Djalali; G. E. Dodge; D. Doughty; M. Dugger; S. Dytman; O. P. Dzyubak; H. Egiyan; K. S. Egiyan; L. El Fassi; L. Elouadrhiri; R. Fatemi; G. Fedotov; R. J. Feuerbach; T. A. Forest; A. Fradi; H. Funsten; M. Garçon; G. Gavalian; N. Gevorgyan; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; J. T. Goetz; R. W. Gothe; K. A. Griffioen; M. Guidal; M. Guillo; N. Guler; V. Gyurjyan; C. Hadjidakis; K. Hafidi; H. Hakobyan; C. Hanretty; J. Hardie; N. Hassall; D. Heddle; F. W. Hersman; K. Hicks; I. Hleiqawi; M. Holtrop; C. E. Hyde-Wright; Y. Ilieva; D. G. Ireland; B. S. Ishkhanov; E. L. Isupov; M. M. Ito; D. Jenkins; H. S. Jo; J. R. Johnstone; K. Joo; H. G. Juengst; N. Kalantarians; J. D. Kellie; M. Khandaker; W. Kim; A. Klein; F. J. Klein; M. Kossov; Z. Krahn; L. H. Kramer; V. Kubarovsky; J. Kuhn; S. E. Kuhn; S. V. Kuleshov; V. Kuznetsov; J. Lachniet; J. M. Laget; J. Langheinrich; D. Lawrence; K. Livingston; H. Y. Lu; M. MacCormick; N. Markov; P. Mattione; S. McAleer; B. McKinnon; J. W.C. McNabb; B. A. Mecking; S. Mehrabyan; M. D. Mestayer; C. A. Meyer; T. Mibe; K. Mikhailov; M. Mirazita; R. Miskimen; V. Mokeev; B. Moreno; K. Moriya; S. A. Morrow; M. Moteabbed; J. Mueller; E. Munevar; G. S. Mutchler; P. Nadel-Turonski; R. Nasseripour; S. Niccolai; G. Niculescu; I. Niculescu; B. B. Niczyporuk; M. R. Niroula; R. A. Niyazov; G. V. O'Rielly; M. Osipenko; A. I. Ostrovidov; K. Park; E. Pasyuk; C. Paterson; S. Anefalos Pereira; S. A. Philips; J. Pierce; N. Pivnyuk; D. Pocanic; O. Pogorelko; E. Polli; I. Popa; S. Pozdniakov; B. M. Preedom; J. W. Price; Y. Prok; D. Protopopescu; L. M. Qin; B. A. Raue; G. Riccardi; G. Ricco; M. Ripani; B. G. Ritchie; F. Ronchetti; G. Rosner; P. Rossi; P. D. Rubin; F. Sabatié; J. Salamanca; J. P. Santoro; V. Sapunenko; R. A. Schumacher; V. S. Serov; Y. G. Sharabian; D. Sharov; N. V. Shvedunov; 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; D. J. Tedeschi; U. Thoma; A. Tkabladze; S. Tkachenko; L. Todor; M. Ungaro; M. F. Vineyard; A. V. Vlassov; D. P. Watts; L. B. Weinstein; M. Williams; E. Wolin; M. H. Wood; A. Yegneswaran; L. Zana; J. Zhang; B. Zhao; Z. W. Zhao

doi:10.1103/PhysRevLett.102.102002

Search for the photoexcitation of exotic mesons in the π+π+π- system

M. Nozar, C. Salgado, D. P. Weygand, L. Guo, G. Adams, Ji Li, P. Eugenio, M. J. Amaryan, M. Anghinolfi, G. Asryan, H. Avakian, H. Bagdasaryan, N. Baillie, J. P. Ball, N. A. Baltzell, S. Barrow, M. Battaglieri, I. Bedlinskiy, M. Bektasoglu, M. BellisN. Benmouna, B. L. Berman, A. S. Biselli, L. Blaszczyk, 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, D. S. Carman, B. Carnahan, L. Casey, A. Cazes, S. Chen, L. Cheng, P. L. Cole, P. Collins, P. Coltharp, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, V. Crede, J. P. Cummings, D. Dale, N. Dashyan, R. De Masi, R. De Vita, E. De Sanctis, P. V. Degtyarenko, H. Denizli, L. Dennis, A. Deur, K. V. Dharmawardane, K. S. Dhuga, R. Dickson, C. Djalali, G. E. Dodge, D. Doughty, M. Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. El Fassi, L. Elouadrhiri, R. Fatemi, G. Fedotov, R. J. Feuerbach, T. A. Forest, A. Fradi, H. Funsten, M. Garçon, G. Gavalian, N. Gevorgyan, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, R. W. Gothe, K. A. Griffioen, M. Guidal, M. Guillo, N. Guler, V. Gyurjyan, C. Hadjidakis, K. Hafidi, H. Hakobyan, C. Hanretty, J. Hardie, N. Hassall, D. Heddle, F. W. Hersman, K. Hicks, I. Hleiqawi, M. Holtrop, C. E. Hyde-Wright, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, E. L. Isupov, M. M. Ito, D. Jenkins, H. S. Jo, J. R. Johnstone, K. Joo, H. G. Juengst, N. Kalantarians, J. D. Kellie, M. Khandaker, W. Kim, A. Klein, F. J. Klein, M. Kossov, Z. Krahn, L. H. Kramer, V. Kubarovsky, J. Kuhn, S. E. Kuhn, S. V. Kuleshov, V. Kuznetsov, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, K. Livingston, H. Y. Lu, M. MacCormick, N. Markov, P. Mattione, S. McAleer, B. McKinnon, J. W.C. McNabb, B. A. Mecking, S. Mehrabyan, M. D. Mestayer, C. A. Meyer, T. Mibe, K. Mikhailov, M. Mirazita, R. Miskimen, V. Mokeev, B. Moreno, K. Moriya, S. A. Morrow, M. Moteabbed, J. Mueller, E. Munevar, G. S. Mutchler, P. Nadel-Turonski, R. Nasseripour, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, M. R. Niroula, R. A. Niyazov, G. V. O'Rielly, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, C. Paterson, S. Anefalos Pereira, S. A. Philips, J. Pierce, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, I. Popa, S. Pozdniakov, B. M. Preedom, J. W. Price, Y. Prok, D. Protopopescu, L. M. Qin, B. A. Raue, G. Riccardi, G. Ricco, M. Ripani, B. G. Ritchie, F. Ronchetti, G. Rosner, P. Rossi, P. D. Rubin, F. Sabatié, J. Salamanca, J. P. Santoro, V. Sapunenko, R. A. Schumacher, V. S. Serov, Y. G. Sharabian, D. Sharov, N. V. Shvedunov, 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, D. J. Tedeschi, U. Thoma, A. Tkabladze, S. Tkachenko, L. Todor, M. Ungaro, M. F. Vineyard, A. V. Vlassov, D. P. Watts, L. B. Weinstein, M. Williams, E. Wolin, M. H. Wood, A. Yegneswaran, L. Zana, J. Zhang, B. Zhao, Z. W. Zhao

Producción científica: Article › revisión exhaustiva

49 Citas (Scopus)

Resumen

A search for exotic mesons in the π+π+π- system photoproduced by the charge exchange reaction γp→π+π+π-(n) was carried out by the CLAS Collaboration at Jefferson Lab. A tagged-photon beam with energies in the 4.8 to 5.4GeV range, produced through bremsstrahlung from a 5.744GeV electron beam, was incident on a liquid-hydrogen target. A partial wave analysis was performed on a sample of 83000 events, the highest such statistics to date in this reaction at these energies. The main objective of this study was to look for the photoproduction of an exotic JPC=1-+ resonant state in the 1 to 2GeV mass range. Our partial wave analysis shows production of the a2(1320) and the π2(1670) mesons, but no evidence for the a1(1260), nor the π1(1600) exotic state at the expected levels. An upper limit of 13.5nb is determined for the exotic π1(1600) cross section, less than 2% of the a2(1320) production.

Idioma original	English
Número de artículo	102002
Publicación	Physical Review Letters
Volumen	102
N.º	10
DOI	https://doi.org/10.1103/PhysRevLett.102.102002
Estado	Published - mar 9 2009

Financiación

Financiadores	Número del financiador
Science and Technology Facilities Council	ST/G008582/1, ST/F500572/1
Science and Technology Facilities Council

ASJC Scopus subject areas

General Physics and Astronomy

Acceder al documento

10.1103/PhysRevLett.102.102002

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Nozar, M., Salgado, C., Weygand, D. P., Guo, L., Adams, G., Li, J., Eugenio, P., Amaryan, M. J., Anghinolfi, M., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., Barrow, S., Battaglieri, M., Bedlinskiy, I., Bektasoglu, M., ... Zhao, Z. W. (2009). Search for the photoexcitation of exotic mesons in the π+π+π- system. Physical Review Letters, 102(10), Artículo 102002. https://doi.org/10.1103/PhysRevLett.102.102002

@article{d5c5866dd28e4c0b95f98d527b8cc611,

title = "Search for the photoexcitation of exotic mesons in the π+π+π- system",

abstract = "A search for exotic mesons in the π+π+π- system photoproduced by the charge exchange reaction γp→π+π+π-(n) was carried out by the CLAS Collaboration at Jefferson Lab. A tagged-photon beam with energies in the 4.8 to 5.4GeV range, produced through bremsstrahlung from a 5.744GeV electron beam, was incident on a liquid-hydrogen target. A partial wave analysis was performed on a sample of 83000 events, the highest such statistics to date in this reaction at these energies. The main objective of this study was to look for the photoproduction of an exotic JPC=1-+ resonant state in the 1 to 2GeV mass range. Our partial wave analysis shows production of the a2(1320) and the π2(1670) mesons, but no evidence for the a1(1260), nor the π1(1600) exotic state at the expected levels. An upper limit of 13.5nb is determined for the exotic π1(1600) cross section, less than 2\% of the a2(1320) production.",

author = "M. Nozar and C. Salgado and Weygand, \{D. P.\} and L. Guo and G. Adams and Ji Li and P. Eugenio and Amaryan, \{M. J.\} and M. Anghinolfi and G. Asryan and H. Avakian and H. Bagdasaryan and N. Baillie and Ball, \{J. P.\} and Baltzell, \{N. A.\} and S. Barrow and M. Battaglieri and I. Bedlinskiy and M. Bektasoglu and M. Bellis and N. Benmouna and Berman, \{B. L.\} and Biselli, \{A. S.\} and L. Blaszczyk 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 Carman, \{D. S.\} and B. Carnahan and L. Casey and A. Cazes and S. Chen and L. Cheng and Cole, \{P. L.\} and P. Collins and P. Coltharp and D. Cords and P. Corvisiero and D. Crabb and H. Crannell and V. Crede and Cummings, \{J. P.\} and D. Dale and N. Dashyan and \{De Masi\}, R. and \{De Vita\}, R. and \{De Sanctis\}, E. and Degtyarenko, \{P. V.\} and H. Denizli and L. Dennis and A. Deur and Dharmawardane, \{K. V.\} and Dhuga, \{K. S.\} and R. Dickson and C. Djalali and Dodge, \{G. E.\} and D. Doughty 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 R. Fatemi and G. Fedotov and Feuerbach, \{R. J.\} and Forest, \{T. A.\} and A. Fradi and H. Funsten and M. Gar{\c c}on and G. Gavalian and N. Gevorgyan 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 M. Guillo and N. Guler and V. Gyurjyan and C. Hadjidakis and K. Hafidi and H. Hakobyan and C. Hanretty and J. Hardie and N. Hassall and D. Heddle and Hersman, \{F. W.\} and K. Hicks and I. Hleiqawi and M. Holtrop 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 Johnstone, \{J. R.\} and K. Joo and Juengst, \{H. G.\} and N. Kalantarians and Kellie, \{J. D.\} and M. Khandaker and W. Kim and A. Klein and Klein, \{F. J.\} and M. Kossov and Z. Krahn and Kramer, \{L. H.\} and V. Kubarovsky and J. Kuhn and Kuhn, \{S. E.\} and Kuleshov, \{S. V.\} and V. Kuznetsov and J. Lachniet and Laget, \{J. M.\} and J. Langheinrich and D. Lawrence and K. Livingston and Lu, \{H. Y.\} and M. MacCormick and N. Markov and P. Mattione and S. McAleer and B. McKinnon and McNabb, \{J. W.C.\} and Mecking, \{B. A.\} and S. Mehrabyan and Mestayer, \{M. D.\} and Meyer, \{C. A.\} and T. Mibe and K. Mikhailov and M. Mirazita and R. Miskimen and V. Mokeev and B. Moreno and K. Moriya and Morrow, \{S. A.\} and M. Moteabbed and J. Mueller and E. Munevar and Mutchler, \{G. S.\} and P. Nadel-Turonski 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 O'Rielly, \{G. V.\} and M. Osipenko and Ostrovidov, \{A. I.\} and K. Park and E. Pasyuk and C. Paterson and \{Anefalos Pereira\}, S. and Philips, \{S. A.\} and J. Pierce and N. Pivnyuk and D. Pocanic and O. Pogorelko and E. Polli and I. Popa and S. Pozdniakov and Preedom, \{B. M.\} and Price, \{J. W.\} and Y. Prok and D. Protopopescu and Qin, \{L. M.\} and Raue, \{B. A.\} and G. Riccardi and G. Ricco and M. Ripani and Ritchie, \{B. G.\} and F. Ronchetti and G. Rosner and P. Rossi and Rubin, \{P. D.\} and F. Sabati{\'e} and J. Salamanca and Santoro, \{J. P.\} and V. Sapunenko and Schumacher, \{R. A.\} and Serov, \{V. S.\} and Sharabian, \{Y. G.\} and D. Sharov and Shvedunov, \{N. V.\} 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 Tedeschi, \{D. J.\} and U. Thoma and A. Tkabladze and S. Tkachenko and L. Todor and M. Ungaro and Vineyard, \{M. F.\} and Vlassov, \{A. V.\} and Watts, \{D. P.\} and Weinstein, \{L. B.\} and M. Williams and E. Wolin and Wood, \{M. H.\} and A. Yegneswaran and L. Zana and J. Zhang and B. Zhao and Zhao, \{Z. W.\}",

year = "2009",

month = mar,

day = "9",

doi = "10.1103/PhysRevLett.102.102002",

language = "English",

volume = "102",

number = "10",

}

Nozar, M, Salgado, C, Weygand, DP, Guo, L, Adams, G, Li, J, Eugenio, P, Amaryan, MJ, Anghinolfi, M, Asryan, G, Avakian, H, Bagdasaryan, H, Baillie, N, Ball, JP, Baltzell, NA, Barrow, S, Battaglieri, M, Bedlinskiy, I, Bektasoglu, M, Bellis, M, Benmouna, N, Berman, BL, Biselli, AS, Blaszczyk, L, Bonner, BE, Bouchigny, S, Boiarinov, S, Bradford, R, Branford, D, Briscoe, WJ, Brooks, WK, Bültmann, S, Burkert, VD, Butuceanu, C, Calarco, JR, Careccia, SL, Carman, DS, Carnahan, B, Casey, L, Cazes, A, Chen, S, Cheng, L, Cole, PL, Collins, P, Coltharp, P, Cords, D, Corvisiero, P, Crabb, D, Crannell, H, Crede, V, Cummings, JP, Dale, D, Dashyan, N, De Masi, R, De Vita, R, De Sanctis, E, Degtyarenko, PV, Denizli, H, Dennis, L, Deur, A, Dharmawardane, KV, Dhuga, KS, Dickson, R, Djalali, C, Dodge, GE, Doughty, D, Dugger, M, Dytman, S, Dzyubak, OP, Egiyan, H, Egiyan, KS, El Fassi, L, Elouadrhiri, L, Fatemi, R, Fedotov, G, Feuerbach, RJ, Forest, TA, Fradi, A, Funsten, H, Garçon, M, Gavalian, G, Gevorgyan, N, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Goetz, JT, Gothe, RW, Griffioen, KA, Guidal, M, Guillo, M, Guler, N, Gyurjyan, V, Hadjidakis, C, Hafidi, K, Hakobyan, H, Hanretty, C, Hardie, J, Hassall, N, Heddle, D, Hersman, FW, Hicks, K, Hleiqawi, I, Holtrop, M, Hyde-Wright, CE, Ilieva, Y, Ireland, DG, Ishkhanov, BS, Isupov, EL, Ito, MM, Jenkins, D, Jo, HS, Johnstone, JR, Joo, K, Juengst, HG, Kalantarians, N, Kellie, JD, Khandaker, M, Kim, W, Klein, A, Klein, FJ, Kossov, M, Krahn, Z, Kramer, LH, Kubarovsky, V, Kuhn, J, Kuhn, SE, Kuleshov, SV, Kuznetsov, V, Lachniet, J, Laget, JM, Langheinrich, J, Lawrence, D, Livingston, K, Lu, HY, MacCormick, M, Markov, N, Mattione, P, McAleer, S, McKinnon, B, McNabb, JWC, Mecking, BA, Mehrabyan, S, Mestayer, MD, Meyer, CA, Mibe, T, Mikhailov, K, Mirazita, M, Miskimen, R, Mokeev, V, Moreno, B, Moriya, K, Morrow, SA, Moteabbed, M, Mueller, J, Munevar, E, Mutchler, GS, Nadel-Turonski, P, Nasseripour, R, Niccolai, S, Niculescu, G, Niculescu, I, Niczyporuk, BB, Niroula, MR, Niyazov, RA, O'Rielly, GV, Osipenko, M, Ostrovidov, AI, Park, K, Pasyuk, E, Paterson, C, Anefalos Pereira, S, Philips, SA, Pierce, J, Pivnyuk, N, Pocanic, D, Pogorelko, O, Polli, E, Popa, I, Pozdniakov, S, Preedom, BM, Price, JW, Prok, Y, Protopopescu, D, Qin, LM, Raue, BA, Riccardi, G, Ricco, G, Ripani, M, Ritchie, BG, Ronchetti, F, Rosner, G, Rossi, P, Rubin, PD, Sabatié, F, Salamanca, J, Santoro, JP, Sapunenko, V, Schumacher, RA, Serov, VS, Sharabian, YG, Sharov, D, Shvedunov, NV, 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, Tedeschi, DJ, Thoma, U, Tkabladze, A, Tkachenko, S, Todor, L, Ungaro, M, Vineyard, MF, Vlassov, AV, Watts, DP, Weinstein, LB, Williams, M, Wolin, E, Wood, MH, Yegneswaran, A, Zana, L, Zhang, J, Zhao, B & Zhao, ZW 2009, 'Search for the photoexcitation of exotic mesons in the π+π+π- system', Physical Review Letters, vol. 102, n.º 10, 102002. https://doi.org/10.1103/PhysRevLett.102.102002

TY - JOUR

T1 - Search for the photoexcitation of exotic mesons in the π+π+π- system

AU - Nozar, M.

AU - Salgado, C.

AU - Weygand, D. P.

AU - Guo, L.

AU - Adams, G.

AU - Li, Ji

AU - Eugenio, P.

AU - Amaryan, M. J.

AU - Anghinolfi, M.

AU - Asryan, G.

AU - Avakian, H.

AU - Bagdasaryan, H.

AU - Baillie, N.

AU - Ball, J. P.

AU - Baltzell, N. A.

AU - Barrow, S.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Bektasoglu, M.

AU - Bellis, M.

AU - Benmouna, N.

AU - Berman, B. L.

AU - Biselli, A. S.

AU - Blaszczyk, L.

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 - Carman, D. S.

AU - Carnahan, B.

AU - Casey, L.

AU - Cazes, A.

AU - Chen, S.

AU - Cheng, L.

AU - Cole, P. L.

AU - Collins, P.

AU - Coltharp, P.

AU - Cords, D.

AU - Corvisiero, P.

AU - Crabb, D.

AU - Crannell, H.

AU - Crede, V.

AU - Cummings, J. P.

AU - Dale, D.

AU - Dashyan, N.

AU - De Masi, R.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Degtyarenko, P. V.

AU - Denizli, H.

AU - Dennis, L.

AU - Deur, A.

AU - Dharmawardane, K. V.

AU - Dhuga, K. S.

AU - Dickson, R.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Doughty, D.

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 - Fatemi, R.

AU - Fedotov, G.

AU - Feuerbach, R. J.

AU - Forest, T. A.

AU - Fradi, A.

AU - Funsten, H.

AU - Garçon, M.

AU - Gavalian, G.

AU - Gevorgyan, N.

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 - Guillo, M.

AU - Guler, N.

AU - Gyurjyan, V.

AU - Hadjidakis, C.

AU - Hafidi, K.

AU - Hakobyan, H.

AU - Hanretty, C.

AU - Hardie, J.

AU - Hassall, N.

AU - Heddle, D.

AU - Hersman, F. W.

AU - Hicks, K.

AU - Hleiqawi, I.

AU - Holtrop, M.

AU - Hyde-Wright, C. E.

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PY - 2009/3/9

Y1 - 2009/3/9

N2 - A search for exotic mesons in the π+π+π- system photoproduced by the charge exchange reaction γp→π+π+π-(n) was carried out by the CLAS Collaboration at Jefferson Lab. A tagged-photon beam with energies in the 4.8 to 5.4GeV range, produced through bremsstrahlung from a 5.744GeV electron beam, was incident on a liquid-hydrogen target. A partial wave analysis was performed on a sample of 83000 events, the highest such statistics to date in this reaction at these energies. The main objective of this study was to look for the photoproduction of an exotic JPC=1-+ resonant state in the 1 to 2GeV mass range. Our partial wave analysis shows production of the a2(1320) and the π2(1670) mesons, but no evidence for the a1(1260), nor the π1(1600) exotic state at the expected levels. An upper limit of 13.5nb is determined for the exotic π1(1600) cross section, less than 2% of the a2(1320) production.

AB - A search for exotic mesons in the π+π+π- system photoproduced by the charge exchange reaction γp→π+π+π-(n) was carried out by the CLAS Collaboration at Jefferson Lab. A tagged-photon beam with energies in the 4.8 to 5.4GeV range, produced through bremsstrahlung from a 5.744GeV electron beam, was incident on a liquid-hydrogen target. A partial wave analysis was performed on a sample of 83000 events, the highest such statistics to date in this reaction at these energies. The main objective of this study was to look for the photoproduction of an exotic JPC=1-+ resonant state in the 1 to 2GeV mass range. Our partial wave analysis shows production of the a2(1320) and the π2(1670) mesons, but no evidence for the a1(1260), nor the π1(1600) exotic state at the expected levels. An upper limit of 13.5nb is determined for the exotic π1(1600) cross section, less than 2% of the a2(1320) production.

UR - http://www.scopus.com/inward/record.url?scp=63249128689&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=63249128689&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.102.102002

DO - 10.1103/PhysRevLett.102.102002

M3 - Article

AN - SCOPUS:63249128689

SN - 0031-9007

VL - 102

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 102002

ER -

Search for the photoexcitation of exotic mesons in the π+π+π- system

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