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First measurement of the underlying event activity at the LHC with v = 0.9 TeV

Abstract: A measurement of the underlying activity in scattering processes with p T scale in the GeV region is performed in proton?proton collisions at s?=0.9?=0.9 TeV, using data collected by the CMS experiment at the LHC. Charged particle production is studied with reference to the direction of a leading object, either a charged particle or a set of charged particles forming a jet. Predictions of several QCD-inspired models as implemented in PYTHIA are compared, after full detector simulation, to the data. The models generally predict too little production of charged particles with pseudorapidity |?|<2, p T >0.5 GeV/c, and azimuthal direction transverse to that of the leading object.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Khachatryan V., Sirunyan A.M., Tumasyan A., Adam W., Bergauer T., Dragicevic M., Erö J., Fabjan C., Friedl M., Frühwirth R., Ghete V.M., Hammer J., Hänsel S., Hoch M., Hörmann N., Hrubec J., Jeitler M., Kasieczka G., Kiesenhofer W., Krammer M., Liko D., Mikulec I., Pernicka M., Rohringer H., Schöfbeck R., Strauss J., Taurok A., Teischinger F., Waltenberger W., Walzel G., Widl E., Wulz C.E., Mossolov V., Shumeiko N., Suarez Gonza

 Fuente: European Physical Journal C, 2010, 70(3), 555-572

Editorial: Springer

 Fecha de publicación: 01/12/2010

Nº de páginas: 18

Tipo de publicación: Artículo de Revista

 DOI: 10.1140/epjc/s10052-010-1453-9

ISSN: 1434-6044,1434-6052

Url de la publicación: https://doi.org/10.1140/epjc/s10052-010-1453-9

Autoría

SHANHUEI CHUANG

IRMA DIAZ MERINO

CARLOS DIEZ GONZALEZ

MARCOS FERNANDEZ GARCIA

REBECA GONZALEZ SUAREZ

CLARA JORDA LOPE

PATRICIA LOBELLE PARDO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

MARIA DEL MAR SOBRON SAÑUDO