Search for Theta(++) Pentaquarks in the Exclusive Reaction gamma p -> K(+)K(-)p

Kubarovsky, V; Battaglieri, Marco; De Vita Raffaella,; Goett, J; Guo, L; Mutchler, Gs; Stoler, P; Weygand, Dp; Ambrozewicz, P; Anghinolfi, Marco; Asryan, G; Avakian, H; Bagdasaryan, H; Baillie, N; Ball, Jp; Baltzell, Na; Batourine, V; Bedlinskiy, I; Bellis, M; Benmouna, N; Berman, Bl; Biselli, As; Bouchigny, S; Boiarinov, S; Bradford, R; Branford, D; Briscoe, Wj; Brooks, Wk; Bueltmann, S; Burkert, Vd; Butuceanu, C; Calarco, Jr; Careccia, Sl; Carman, Ds; Chen, S; Clinton, E; Cole, Pl; Collins, P; Coltharp, P; Crabb, D; Crannell, H; Crede, V; Cummings, Jp; De Masi, R; Dale, D; De Sanctis Enzo,; Degtyarenko, Pv; Deur, A; Dharmawardane, Kv; Djalali, C; Dodge, Ge; Donnelly, J; Doughty, D; Dugger, M; Dzyubak, Op; Egiyan, H; Egiyan, Ks; Elouadrhiri, L; Eugenio, P; Fedotov, G; Funsten, H; Gabrielyan, My; Gan, L; Garcon, M; Gasparian, A; Gavalian, G; Gilfoyle, Gp; Giovanetti, Kl; Girod, Fx; Glamazdin, O; Goetz, Jt; Golovach, E; Gonenc, A; Gordon, Cio; Gothe, Rw; Griffioen, Ka; Guidal, M; Guler, N; Gyurjyan, V; Hadjidakis, Cynthia; Hafidi, K; Hakobyan, Rs; Hardie, J; 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; Joo, K; Juengst, Hg; Kellie, Jd; Khandaker, M; Kim, W; Klein, A; Klein, Fj; Klimenko, Av; Kossov, M; Kramer, Lh; Kuhn, J; Kuhn, Se; Kuleshov, Sv; Lachniet, J; Laget, Jm; Langheinrich, J; Lawrence, D; Lee, T; Jun, Li; Livingston, K; Lu, H; MacCormick, M; Markov, N; McKinnon, B; Mecking, Ba; Melone, Jj; Mestayer, Md; Meyer, Ca; Mibe, T; Mikhailov, K; Minehart, R; Mirazita, Marco; Miskimen, R; Mochalov, V; Mokeev, V; Morand, L; Morrow, Sa; Moteabbed, M; Nadel Turonski, P; Nakagawa, I; Nasseripour, R; Niccolai, S; Niculescu, G; Niculescu, I; Niczyporuk, Bb; Niroula, Mr; Niyazov, Ra; Nozar, M; Osipenko, Mikhail; Ostrovidov, Ai; Park, K; Pasyuk, E; Paterson, C; Pierce, J; Pivnyuk, N; Pocanic, D; Pogorelko, O; Pozdniakov, S; Price, Jw; Prok, Y; Protopopescu, D; Raue, Ba; Riccardi, G; Ricco, Giovanni; Ripani, Marco; Ritchie, Bg; Ronchetti, Federico; Rosner, G; Rossi, Patrizia; Sabatie, F; Salgado Lopez Carlos Alberto,; Santoro, Joseph; Sapunenko, Vladimir; Schumacher, Ra; Serov, Vs; Sharabian, Yg; Shvedunov, Nv; Smith, Es; Smith, Lc; Sober, Di; Stavinsky, A; Stepanyan, Ss; Stepanyan, S; Stokes, Be; Strakovsky, Ii; Strauch, S; Taiuti, Mauro Gino; Tedeschi, Dj; Teymurazyan, A; Thoma, U; Tkabladze, A; Tkachenko, S; Todor, L; Tur, C; Ungaro, M; Vineyard, Mf; Vlassov, Av; Weinstein, Lb; Williams Meurig Crispin Stowe,; Wolin, E; Wood, Mh; Yegneswaran, A; Zana, L; Zhang, J; Zhao, B.

doi:10.1103/PhysRevLett.97.102001

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The reaction gamma p -> pK(+)K(-) was studied at Jefferson Lab with photon energies from 1.8 to 3.8 GeV using a tagged photon beam. The goal was to search for a Theta(++) pentaquark, a narrow, doubly charged baryon state having strangeness S=+1 and isospin I=1, in the pK(+) invariant mass spectrum. No statistically significant evidence of a Theta(++) was found. Upper limits on the total and differential cross section for the reaction gamma p -> K-Theta(++) were obtained in the mass range from 1.5 to 2.0 GeV/c(2), with an upper limit for a narrow resonance with a mass M-Theta(++)=1.54 GeV/c(2) of about 0.15 nb, 95% C.L.. This result places a stringent upper limit on the Theta(++) width Gamma(++)(Theta)< 0.1 MeV/c(2).

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Titolo:	Search for Theta(++) Pentaquarks in the Exclusive Reaction gamma p -> K(+)K(-)p
Autori:	Kubarovsky V Battaglieri Marco De Vita Raffaella Goett J Guo L Mutchler GS Stoler P Weygand DP Ambrozewicz P Anghinolfi Marco Asryan G Avakian H Bagdasaryan H Baillie N Ball JP Baltzell NA Batourine V Bedlinskiy I Bellis M Benmouna N Berman BL Biselli AS Bouchigny S Boiarinov S Bradford R Branford D Briscoe WJ Brooks WK Bueltmann S Burkert VD Butuceanu C Calarco JR Careccia SL Carman DS Chen S Clinton E Cole PL Collins P Coltharp P Crabb D Crannell H Crede V Cummings JP De Masi R Dale D De Sanctis Enzo Degtyarenko PV Deur A Dharmawardane KV Djalali C Dodge GE Donnelly J Doughty D Dugger M Dzyubak OP Egiyan H Egiyan KS Elouadrhiri L Eugenio P Fedotov G Funsten H Gabrielyan MY Gan L Garcon M Gasparian A Gavalian G Gilfoyle GP Giovanetti KL Girod FX Glamazdin O Goetz JT Golovach E Gonenc A Gordon CIO Gothe RW Griffioen KA Guidal M Guler N Gyurjyan V Hadjidakis Cynthia Hafidi K Hakobyan RS Hardie J 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 Joo K Juengst HG Kellie JD Khandaker M Kim W Klein A Klein FJ Klimenko AV Kossov M Kramer LH Kuhn J Kuhn SE Kuleshov SV Lachniet J Laget JM Langheinrich J Lawrence D Lee T Li Jun Livingston K Lu H MacCormick M Markov N McKinnon B Mecking BA Melone JJ Mestayer MD Meyer CA Mibe T Mikhailov K Minehart R Mirazita Marco Miskimen R Mochalov V Mokeev V Morand L Morrow SA Moteabbed M Nadel Turonski P Nakagawa I Nasseripour R Niccolai S Niculescu G Niculescu I Niczyporuk BB Niroula MR Niyazov RA Nozar M Osipenko Mikhail Ostrovidov AI Park K Pasyuk E Paterson C Pierce J Pivnyuk N Pocanic D Pogorelko O Pozdniakov S Price JW Prok Y Protopopescu D Raue BA Riccardi G RICCO, GIOVANNI Ripani Marco Ritchie BG Ronchetti Federico Rosner G Rossi Patrizia Sabatie F Salgado Lopez Carlos Alberto Santoro Joseph Sapunenko Vladimir Schumacher RA Serov VS Sharabian YG Shvedunov NV Smith ES Smith LC Sober DI Stavinsky A Stepanyan SS Stepanyan S Stokes BE Strakovsky II Strauch S TAIUTI, MAURO GINO Tedeschi DJ Teymurazyan A Thoma U Tkabladze A Tkachenko S Todor L Tur C Ungaro M Vineyard MF Vlassov AV Weinstein LB Williams Meurig Crispin Stowe Wolin E Wood MH Yegneswaran A Zana L Zhang J Zhao B. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2006
Rivista:	PHYSICAL REVIEW LETTERS
Abstract:	The reaction gamma p -> pK(+)K(-) was studied at Jefferson Lab with photon energies from 1.8 to 3.8 GeV using a tagged photon beam. The goal was to search for a Theta(++) pentaquark, a narrow, doubly charged baryon state having strangeness S=+1 and isospin I=1, in the pK(+) invariant mass spectrum. No statistically significant evidence of a Theta(++) was found. Upper limits on the total and differential cross section for the reaction gamma p -> K-Theta(++) were obtained in the mass range from 1.5 to 2.0 GeV/c(2), with an upper limit for a narrow resonance with a mass M-Theta(++)=1.54 GeV/c(2) of about 0.15 nb, 95% C.L.. This result places a stringent upper limit on the Theta(++) width Gamma(++)(Theta)< 0.1 MeV/c(2).
Handle:	http://hdl.handle.net/11567/301681
Appare nelle tipologie:	01.01 - Articolo su rivista

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