Measurement of the jet fragmentation function and transverse profile in proton-proton collisions at a center-of-mass energy of 7 TeV with the ATLAS detector

The jet fragmentation function and transverse profile for jets with 25 GeV [pT.sub.jet] < 500 GeV and [absolute value of [η.sub.jet] < 1.2 produced in proton-proton collisions with a center-of-mass energy of 7 TeV are presented. The measurement is performed using data with an integrated lumino...

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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2011-11, Vol.71 (11)
Hauptverfasser:	Alessandria, F., Andreazza, A., Antonelli, M., Aperio Bella, L., Assamagan, K., Beddall, A., Benjamin, D. P., Bensinger, J. R., Bobrovnikov, V. B., Chouridou, S., Christidi, I. A., Cogan, J. G., Collot, J., Conidi, M. C., Cuciuc, C. -M., De Castro, S., Dindar Yagci, K., Dita, P., Dobson, M., Dotti, A., Ebenstein, W. L., Evangelakou, D., Farooque, T., Farthouat, P., Fehling-Kaschek, M., Ferencei, J., Francavilla, P., Gadfort, T., Giagu, S., Gianotti, F., Grahn, K-J., Henderson, R. C. W., Hill, D., Howell, D. F., Hubaut, F., Huhtinen, M., Iacobucci, G., Ishikawa, A., Johansson, K. E., Jovin, T., Kama, S., Kanzaki, J., Keung, J., Kim, H., Knue, A., Koffas, T., Kohout, Z., Kordas, K., Kroseberg, J., La Rosa, A., Landsman, H., Lee, H., Madaras, R. J., Mättig, P., March, L., Martens, F. K., Marzano, F., Mechnich, J., Medinnis, M., Morris, J. D., Nisati, A., Nuncio-Quiroz, A. -E., Pagan Griso, S., Pezoa, R., Placakyte, R., Policicchio, A., Polini, A., Reljic, D., Ruwiedel, C., Saavedra, A. F., Salamanna, G., Sbarra, C., Sherman, D., Shibata, A., Sinervo, P., Skubic, P., Spigo, G., Staude, A., Strom, D. M., Strong, J. A., Taiblum, N., Tanaka, S., Terron, J., Thioye, M., Thomson, E., Toms, K., Trigger, I. M., Tsiskaridze, V., Vercesi, V., Vickey Boeriu, O. E., Vinek, E., Volpi, G., von Toerne, E., Walker, R., Watkins, P. M., Waugh, A. T., Wicke, D., Wunstorf, R., Zeitnitz, C., Zutshi, V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Calorimetry Collisions (Nuclear physics) Comparative analysis Detectors Exact sciences and technology Measurement Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS The physics of elementary particles and fields
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Zusammenfassung:	The jet fragmentation function and transverse profile for jets with 25 GeV [pT.sub.jet] < 500 GeV and [absolute value of [η.sub.jet] < 1.2 produced in proton-proton collisions with a center-of-mass energy of 7 TeV are presented. The measurement is performed using data with an integrated luminosity of 36 [pb.sup.-1]. Jets are reconstructed and their momentum measured using calorimetric information. The momenta of the charged particle constituents are measured using the tracking system. The distributions corrected for detector effects are compared with various Monte Carlo event generators and generator tunes. Several of these choices show good agreement with the measured fragmentation function. None of these choices reproduce both the transverse profile and fragmentation function over the full kinematic range of the measurement.
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/sl0052-011-1795-y