Measurement of J/ψ polarization in pp collisions at √s = 7 TeV

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. Anderlini, J. Anderson, P.R. AndreassenR. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, J. Van Den Brand, K. Carvalho Akiba, V. Coco, P. N.Y. David, K. De Bruyn, D. Van Eijk, C. Farinelli, M. Ferro-Luzzi, V. Heijne, T. Ketel, R. F. Koopman, A. Kozlinskiy, R. W. Lambert, J. Van Leerdam, M. Merk, I. Mous, S. Oggero, G. Raven, M. Schiller, N. Serra, B. Storaci, V. Syropoulos, J. Van Tilburg, S. Tolk, P. Tsopelas, N. Tuning, The LHCb collaboration

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

An angular analysis of the decay J/ψ → μ+ μ is performed to measure the polarization of prompt J/ψ mesons produced in pp collisions at √s = 7 TeV. The dataset corresponds to an integrated luminosity of 0.37 fb−1 collected with the LHCb detector. The measurement is presented as a function of transverse momentum, pT, and rapidity, y, of the J/ψ meson, in the kinematic region 2 < pT < 15 GeV/c and 2.0 < y < 4.5.

Original languageEnglish
Article number2631
JournalEuropean Physical Journal C. Particles and Fields
Volume73
Issue number11
DOIs
Publication statusPublished - 9 Nov 2013

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