TY - JOUR
T1 - Observation of a coherence length effect in exclusive ρ0 Electroproduction
AU - Ackerstaff, K.
AU - Airapetian, A.
AU - Akopov, N.
AU - Akushevich, I.
AU - Amarian, M.
AU - Aschenauer, E. C.
AU - Avakian, H.
AU - Avakian, R.
AU - Avetissian, A.
AU - Bains, B.
AU - Barrow, S.
AU - Baumgarten, C.
AU - Beckmann, M.
AU - Belostotski, St
AU - Belz, J. E.
AU - Benisch, Th
AU - Bernreuther, S.
AU - Bianchi, N.
AU - Blanchard, S.
AU - Blouw, J.
AU - Böttcher, H.
AU - Borissov, A.
AU - Brack, J.
AU - Brauksiepe, S.
AU - Braun, B.
AU - Bray, B.
AU - Brons, St
AU - Brückner, W.
AU - Brüll, A.
AU - Bruins, E. E.W.
AU - Bulten, H. J.
AU - Cadman, R. V.
AU - Capitani, G. P.
AU - Carter, P.
AU - Chumney, P.
AU - Cisbani, E.
AU - Court, G. R.
AU - Dalpiaz, P. F.
AU - Delheij, P. P.J.
AU - De Sanctis, E.
AU - De Schepper, D.
AU - Devitsin, E.
AU - de Witt Huberts, P. K.A.
AU - Di Nezza, P.
AU - Düren, M.
AU - Dvoredsky, A.
AU - Elbakian, G.
AU - Ely, J.
AU - Emerson, J.
AU - Korsch, W.
PY - 1999
Y1 - 1999
N2 - Exclusive incoherent electroproduction of the ρ0(770) meson from 1H, 2H, 3He, and 14N targets has been studied by the HERMES experiment at squared four-momentum transfer Q2 > 0.4GeV2 and positron energy loss v from 9 to 20 GeV. The ratio of the 14N to 1H cross sections per nucleon, known as the nuclear transparency, was found to decrease with increasing coherence length of quark-antiquark fluctuations of the virtual photon. The data provide clear evidence of the interaction of the quark-antiquark fluctuations with the nuclear medium.
AB - Exclusive incoherent electroproduction of the ρ0(770) meson from 1H, 2H, 3He, and 14N targets has been studied by the HERMES experiment at squared four-momentum transfer Q2 > 0.4GeV2 and positron energy loss v from 9 to 20 GeV. The ratio of the 14N to 1H cross sections per nucleon, known as the nuclear transparency, was found to decrease with increasing coherence length of quark-antiquark fluctuations of the virtual photon. The data provide clear evidence of the interaction of the quark-antiquark fluctuations with the nuclear medium.
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U2 - 10.1103/PhysRevLett.82.3025
DO - 10.1103/PhysRevLett.82.3025
M3 - Article
AN - SCOPUS:4243249513
SN - 0031-9007
VL - 82
SP - 3025
EP - 3029
JO - Physical Review Letters
JF - Physical Review Letters
IS - 15
ER -