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DOI 10.1103/physrevlett.93.122001

Медицинская библиотека · Physical review letters · 2004

Measurement of the generalized polarizabilities of the proton in virtual Compton scattering at Q2=0.92 and 1.76 GeV2.

Laveissière G, Todor L, Degrande N, Jaminion S, Jutier C, Di Salvo R, Van Hoorebeke L, Alexa L C, Anderson B D, Aniol K A, Arundell K, Audit G, Auerbach L, Baker F T, Baylac M, Berthot J, Bertin P Y, Bertozzi W, Bimbot L, Boeglin W U, Brash E J, Breton V, Breuer H, Burtin E, Calarco J R, Cardman L S, Cavata C, Chang C-C, Chen J-P, Chudakov E, Cisbani E, Dale D S, de Jager C W, De Leo R, Deur A, d'Hose N, Dodge G E, Domingo J J, Elouadrhiri L, Epstein M B, Ewell L A, Finn J M, Fissum K G, Fonvieille H, Fournier G, Frois B, Frullani S, Furget C, Gao H, Gao J, Garibaldi F, Gasparian A, Gilad S, Gilman R, Glamazdin A, Glashausser C, Gomez J, Gorbenko V, Grenier P, Guichon P A M, Hansen J O, Holmes R, Holtrop M, Howell C, Huber G M, Hyde-Wright C E, Incerti S, Iodice M, Jardillier J, Jones M K, Kahl W, Kato S, Katramatou A T, Kelly J J, Kerhoas S, Ketikyan A, Khayat M, Kino K, Kox S, Kramer L H, Kumar K S, Kumbartzki G, Kuss M, Leone A, LeRose J J, Liang M, Lindgren R A, Liyanage N, Lolos G J, Lourie R W, Madey R, Maeda K, Malov S, Manley D M, Marchand C, Marchand D, Margaziotis D J, Markowitz P, Marroncle J, Martino J, McCormick K, McIntyre J, Mehrabyan S, Merchez F, Meziani Z E, Michaels R, Miller G W, Mougey J Y, Nanda S K, Neyret D, Offermann E A J M, Papandreou Z, Pasquini B, Perdrisat C F, Perrino R, Petratos G G, Platchkov S, Pomatsalyuk R, Prout D L, Punjabi V A, Pussieux T, Quémenér G, Ransome R D, Ravel O, Real J S, Renard F, Roblin Y, Rowntree D, Rutledge G, Rutt P M, Saha A, Saito T, Sarty A J, Serdarevic A, Smith T, Smirnov G, Soldi K, Sorokin P, Souder P A, Suleiman R, Templon J A, Terasawa T, Tieulent R, Tomasi-Gustaffson E, Tsubota H, Ueno H, Ulmer P E, Urciuoli G M, Vanderhaeghen M, Van De Vyver R, Van der Meer R L J, Vernin P, Vlahovic B, Voskanyan H, Voutier E, Watson J W, Weinstein L B, Wijesooriya K, Wilson R, Wojtsekhowski B B, Zainea D G, Zhang W-M, Zhao J, Zhou Z-L, Jefferson Lab Hall A Collaboration

СтатьяПеревод в очереди

Аннотация

We report a virtual Compton scattering study of the proton at low c.m. energies. We have determined the structure functions P(LL)-P(TT)/epsilon and P(LT), and the electric and magnetic generalized polarizabilities (GPs) alpha(E)(Q2) and beta(M)(Q2) at momentum transfer Q(2)=0.92 and 1.76 GeV2. The electric GP shows a strong falloff with Q2, and its global behavior does not follow a simple dipole form. The magnetic GP shows a rise and then a falloff; this can be interpreted as the dominance of a long-distance diamagnetic pion cloud at low Q2, compensated at higher Q2 by a paramagnetic contribution from piN intermediate states.

Для цитирования: Laveissière G, Todor L, Degrande N, Jaminion S, Jutier C, Di Salvo R, Van Hoorebeke L, Alexa L C, Anderson B D, Aniol K A, Arundell K, Audit G, Auerbach L, Baker F T, Baylac M, Berthot J, Bertin P Y, Bertozzi W, Bimbot L, Boeglin W U, Brash E J, Breton V, Breuer H, Burtin E, Calarco J R, Cardman L S, Cavata C, Chang C-C, Chen J-P, Chudakov E, Cisbani E, Dale D S, de Jager C W, De Leo R, Deur A, d'Hose N, Dodge G E, Domingo J J, Elouadrhiri L, Epstein M B, Ewell L A, Finn J M, Fissum K G, Fonvieille H, Fournier G, Frois B, Frullani S, Furget C, Gao H, Gao J, Garibaldi F, Gasparian A, Gilad S, Gilman R, Glamazdin A, Glashausser C, Gomez J, Gorbenko V, Grenier P, Guichon P A M, Hansen J O, Holmes R, Holtrop M, Howell C, Huber G M, Hyde-Wright C E, Incerti S, Iodice M, Jardillier J, Jones M K, Kahl W, Kato S, Katramatou A T, Kelly J J, Kerhoas S, Ketikyan A, Khayat M, Kino K, Kox S, Kramer L H, Kumar K S, Kumbartzki G, Kuss M, Leone A, LeRose J J, Liang M, Lindgren R A, Liyanage N, Lolos G J, Lourie R W, Madey R, Maeda K, Malov S, Manley D M, Marchand C, Marchand D, Margaziotis D J, Markowitz P, Marroncle J, Martino J, McCormick K, McIntyre J, Mehrabyan S, Merchez F, Meziani Z E, Michaels R, Miller G W, Mougey J Y, Nanda S K, Neyret D, Offermann E A J M, Papandreou Z, Pasquini B, Perdrisat C F, Perrino R, Petratos G G, Platchkov S, Pomatsalyuk R, Prout D L, Punjabi V A, Pussieux T, Quémenér G, Ransome R D, Ravel O, Real J S, Renard F, Roblin Y, Rowntree D, Rutledge G, Rutt P M, Saha A, Saito T, Sarty A J, Serdarevic A, Smith T, Smirnov G, Soldi K, Sorokin P, Souder P A, Suleiman R, Templon J A, Terasawa T, Tieulent R, Tomasi-Gustaffson E, Tsubota H, Ueno H, Ulmer P E, Urciuoli G M, Vanderhaeghen M, Van De Vyver R, Van der Meer R L J, Vernin P, Vlahovic B, Voskanyan H, Voutier E, Watson J W, Weinstein L B, Wijesooriya K, Wilson R, Wojtsekhowski B B, Zainea D G, Zhang W-M, Zhao J, Zhou Z-L, Jefferson Lab Hall A Collaboration. Measurement of the generalized polarizabilities of the proton in virtual Compton scattering at Q2=0.92 and 1.76 GeV2.. Physical review letters. 2004. DOI: 10.1103/physrevlett.93.122001.
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