Airapetian, A. et al. (2001) Hadron formation in deep-inelastic positron scattering in a nuclear environment. European Physical Journal C, 20(3), 479 -486. (doi: 10.1007/s100520100697)
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Publisher's URL: http://dx.doi.org/10.1007/s100520100697
Abstract
The influence of the nuclear medium on the production of charged hadrons in semi-inclusive deep-inelastic scattering has been studied by the HERMES experiment at DESY using a 27.5 GeV positron beam. The differential multiplicity of charged hadrons and identified charged pions from nitrogen relative to that from deuterium has been measured as a function of the virtual photon energy nu and the fraction z of this energy transferred to the hadron. There are observed substantial reductions of the multiplicity ratio R/sub M//sup h/ at low nu and at high z, both of which are well described by a gluon-bremsstrahlung model of hadronization. A significant difference of the nu -dependence of R/sub M//sup h/ is found between positive and negative hadrons. This is interpreted in terms of a difference between the formation times of protons and pions, using a phenomenological model to describe the nu - and z-dependence of R/sub M//sup h/.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Kaiser, Professor Ralf and Nowak, Dr Wolf-Dieter |
Authors: | Airapetian, A., Akopov, N., Akopov, Z., Akushevich, I., Amarian, T., Arrington, J., Aschenauer, E.C., Avakian, H., Avakian, R., Avetissian, A., Avetissian, E., Bailey, P., Bains, B., Baumgarten, C., Beckmann, M., Belostotski, S., Bernreuther, S., Bianchi, N., Bottcher, H., Borissov, A., Bouwhuis, M., Brack, J., Brauksiepe, S., Braun, B., Bruckner, W., Brull, A., Budz, P., Bulten, H.J., Capitani, G.P., Carter, P., Chumney, P., Cisbani, E., Court, G.R., Dalpiaz, P.F., De Leo, R., De Nardo, L., De Sanctis, E., De Schepper, D., Devitsin, E., Witt Huberts, P.K.A., Di Nezza, P., Djordadze, V., Duren, M., Dvoredsky, A., Elbakian, G., Ely, J., Fantoni, A., Fechtchenko, A., Felawka, L., Ferro-Luzzi, M., Fiedler, K., Filippone, B.W., Fischer, H., Fox, B., Franz, J., Frullani, S., Garber, Y., Garibaldi, F., Garutti, E., Gavrilov, G., Gharibyan, V., Golendukhin, A., Graw, G., Grebeniouk, O., Green, P.W., Greeniaus, L.G., Gute, A., Haeberli, W., Hartig, M., Hasch, D., Heesbeen, D., Heinsius, F.H., Henoch, M., Hertenberger, R., Hesselink, W.H.A., Hofman, G., Holer, Y., Holt, R.J., Hommez, B., Iarygin, G., Iodice, M., Izotov, A., Jackson, H.E., Jgoun, A., Jung, P., Kaiser, R., Kanesaka, J., Kinnev, E., Kisselev, A., Kitching, P., Koch, N., Konigsmann, K., Kolster, H., Korotkov, V., Kotik, E., Kozlov, V., Krivokhijine, V.G., Kyle, G., Lagamba, L., Laziev, A., Lenisa, P., Lindemann, T., Lorenzon, W., Makins, N.C.R., Martin, J.W., Marukyan, H., Masoli, F., McAndrew, M., McIlhany, K., Mckeown, R.D., Meissner, F., Menden, F., Metz, A., Meyners, N., Mikloukho, O., Miller, C.A., Milner, R., Muccifora, V., Mussa, R., Nagaitsev, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaeva, K., Nowak, W.D., Oganessyan, K., O'Neill, T.G., Openshaw, R., Ouyang, J., Owen, B.R., Pate, S.F., Potashov, S., Potterveld, D.H., Rakness, G., Rappoport, V., Redwine, R., Reggiani, D., Reolon, A.R., Ristinen, R., Rith, K., Robinson, D., Rostomyan, A., Ruh, M., Ryckbosch, D., Sakemi, Y., Sato, T., Savin, I., Scarlett, C., Schafer, A., Schill, C., Schmidt, F., Schnell, G., Schuler, K., Schwind, A., Seibert, J., Seitz, B., Shibata, T.A., Shin, T., Shutov, V., Simani, M.C., Simon, A., Sinram, K., Steffens, E., Steijger, J.J.M., Stewart, J., Stosslein, U., Suetsugu, K., Sutter, M., Taroian, S., Terklov, A., Tessarin, S., Thomas, E., Tipton, B., Tytgat, M., Urciuoli, G.M., van den Brand, J.F.J., van der Stennhoven, G., Van de Vyver, R., van Hunen, J.J., Vetterli, M.C., Vikhrov, V., Vincter, M.G., Visser, J., Volk, E., Weiskopf, C., Wendland, J., Wilbert, J., Wise, T., Yen, S., Yoneyama, S., and Zohrabian, H. |
Subjects: | Q Science > QC Physics |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | European Physical Journal C |
Publisher: | Springer-Verlag |
ISSN: | 1434-6044 |
ISSN (Online): | 1434-6052 |
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