Measurement of the forward charged particle pseudorapidity density in pp collisions at sqrt(s) = 8 TeV using a displaced interaction point

التفاصيل البيبلوغرافية
العنوان: Measurement of the forward charged particle pseudorapidity density in pp collisions at sqrt(s) = 8 TeV using a displaced interaction point
المؤلفون: The TOTEM Collaboration, Antchev, G., Aspell, P., Atanassov, I., Avati, V., Baechler, J., Berardi, V., Berretti, M., Bossini, E., Bottigli, U., Bozzo, M., Brücken, E., Buzzo, A., Cafagna, F. S., Catanesi, M. G., Covault, C., Csanád, M., Csörgő, T., Deile, M., Doubek, M., Eggert, K., Eremin, V., Ferro, F., Fiergolski, A., Garcia, F., Georgiev, V., Giani, S., Grzanka, L., Hammerbauer, J., Heino, J., Hilden, T., Karev, A., Kašpar, J., Kopal, J., Kundrát, V., Lami, S., Latino, G., Lauhakangas, R., Leszko, T., Lippmaa, E., Lippmaa, J., Lokajíček, M. V., Losurdo, L., Vetere, M. Lo, Rodríguez, F. Lucas, Macrí, M., Mäki, T., Mercadante, A., Minafra, N., Minutoli, S., Nemes, F., Niewiadomski, H., Oliveri, E., Oljemark, F., Orava, R., Oriunno, M., Österberg, K., Palazzi, P., Peroutka, Z., Procházka, J., Quinto, M., Radermacher, E., Radicioni, E., Ravotti, F., Robutti, E., Ropelewski, L., Ruggiero, G., Saarikko, H., Scribano, A., Smajek, J., Snoeys, W., Sziklai, J., Taylor, C., Turini, N., Vacek, V., Welti, J., Whitmore, J., Wyszkowski, P., Zielinski, K.
سنة النشر: 2014
المجموعة: High Energy Physics - Experiment
مصطلحات موضوعية: High Energy Physics - Experiment
الوصف: The pseudorapidity density of charged particles dN(ch)/deta is measured by the TOTEM experiment in pp collisions at sqrt(s) = 8 TeV within the range 3.9 < eta < 4.7 and -6.95 < eta < -6.9. Data were collected in a low intensity LHC run with collisions occurring at a distance of 11.25 m from the nominal interaction point. The data sample is expected to include 96-97\% of the inelastic proton-proton interactions. The measurement reported here considers charged particles with p_T > 0 MeV/c, produced in inelastic interactions with at least one charged particle in -7 < eta < -6 or 3.7 < eta <4.8 . The dN(ch)/deta has been found to decrease with |eta|, from 5.11 +- 0.73 at eta = 3.95 to 1.81 +- 0.56 at eta= - 6.925. Several MC generators are compared to the data and are found to be within the systematic uncertainty of the measurement.
Comment: 9 pages, 5 figures, submitted to EPJ C
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/1411.4963
رقم الأكسشن: edsarx.1411.4963
قاعدة البيانات: arXiv