Airapetian A, Akopov N, Akopov Z, Amarian M, Ammosov V V, Andrus A, Aschenauer E C, Augustyniak W, Avakian R, Avetissian A, Avetissian E, Bailey P, Baturin V, Baumgarten C, Beckmann M, Belostotski S, Bernreuther S, Bianchi N, Blok H P, Böttcher H, Borissov A, Bouwhuis M, Brack J, Brüll A, Brunn I, Capitani G P, Chiang H C, Ciullo G, Contalbrigo M, Court G R, Dalpiaz P F, De Leo R, De Nardo L, De Sanctis E, Devitsin E, Di Nezza P, Düren M, Ehrenfried M, Elalaoui-Moulay A, Elbakian G, Ellinghaus F, Elschenbroich U, Ely J, Fabbri R, Fantoni A, Fechtchenko A, Felawka L, Fox B, Franz J, Frullani S, Gärber Y, Gapienko G, Gapienko V, Garibaldi F, Garutti E, Gaskell D, Gavrilov G, Gharibyan V, Graw G, Grebeniouk O, Greeniaus L G, Haeberli W, Hafidi K, Hartig M, Hasch D, Heesbeen D, Henoch M, Hertenberger R, Hesselink W H A, Hillenbrand A, Holler Y, Hommez B, Iarygin G, Izotov A, Jackson H E, Jgoun A, Kaiser R, Kinney E, Kisselev A, Königsmann K, Kolster H, Kopytin M, Korotkov V, Kozlov V, Krauss B, Krivokhijine V G, Lagamba L, Lapikás L, Laziev A, Lenisa P, Liebing P, Lindemann T, Lorenzon W, Makins N C R, Marukyan H, Masoli F, Menden F, Mexner V, Meyners N, Mikloukho O, Miller C A, Miyachi Y, Muccifora V, Nagaitsev A, Nappi E, Naryshkin Y, Nass A, Negodaeva K, Nowak W-D, Oganessyan K, Ohsuga H, Orlandi G, Podiatchev S, Potashov S, Potterveld D H, Raithel M, Reggiani D, Reimer P, Reischl A, Reolon A R, Rith K, Rosner G, Rostomyan A, Ryckbosch D, Sanjiev I, Savin I, Scarlett C, Schäfer A, Schill C, Schnell G, Schüler K P, Schwind A, Seibert J, Seitz B, Shanidze R, Shibata T-A, Shutov V, Simani M C, Sinram K, Stancari M, Statera M, Steffens E, Steijger J J M, Stewart J, Stösslein U, Tanaka H, Taroian S, Tchuiko B, Terkulov A, Tessarin S, Thomas E, Tkabladze A, Trzcinski A, Tytgat M, Urciuoli G M, Van Der Nat P, Van Der Steenhoven G, Van De Vyver R, Vetterli M C, Vikhrov V, Vincter M G, Visser J, Vogt M, Volmer J, Weiskopf C, Wendland J, Wilbert J, Wise T, Yen S, Yoneyama S, Zihlmann B, Zohrabian H, Zupranski P
Yerevan Physics Institute, Armenia.
Phys Rev Lett. 2003 Feb 7;90(5):052501. doi: 10.1103/PhysRevLett.90.052501. Epub 2003 Feb 6.
Exclusive coherent and incoherent electroproduction of the rho(0) meson from 1H and 14N targets has been studied at the HERMES experiment as a function of coherence length (l(c)), corresponding to the lifetime of hadronic fluctuations of the virtual photon, and squared four-momentum of the virtual photon (-Q2). The ratio of 14N to 1H cross sections per nucleon, called nuclear transparency, was found to increase (decrease) with increasing l(c) for coherent (incoherent) rho(0) electroproduction. For fixed l(c), a rise of nuclear transparency with Q2 is observed for both coherent and incoherent rho(0) production, which is in agreement with theoretical calculations of color transparency.
在HERMES实验中，研究了从1H和14N靶上排他性地相干和非相干电产生ρ(0)介子，作为相干长度（l(c)）的函数，l(c)对应于虚光子强子涨落的寿命，以及虚光子的四动量平方（-Q2）。每核子的14N与1H截面之比，称为核透明度，发现对于相干（非相干）ρ(0)电产生，随着l(c)增加而增加（减少）。对于固定的l(c)，对于相干和非相干ρ(0)产生，都观察到核透明度随Q2升高，这与色透明度的理论计算一致。
