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Measurement of J/ψ polarization in pp collisions at
- The LHCb Collaboration;
- Aaij, R;
- Abellan Beteta, C;
- Adeva, B;
- Adinolfi, M;
- Adrover, C;
- Affolder, A;
- Ajaltouni, Z;
- Albrecht, J;
- Alessio, F;
- Alexander, M;
- Ali, S;
- Alkhazov, G;
- Alvarez Cartelle, P;
- Alves, AA;
- Amato, S;
- Amerio, S;
- Amhis, Y;
- Anderlini, L;
- Anderson, J;
- Andreassen, R;
- Appleby, RB;
- Aquines Gutierrez, O;
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- Artamonov, A;
- Artuso, M;
- Aslanides, E;
- Auriemma, G;
- Bachmann, S;
- Back, JJ;
- Baesso, C;
- Balagura, V;
- Baldini, W;
- Barlow, RJ;
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- Barsuk, S;
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Published Web Location
https://doi.org/10.1140/epjc/s10052-013-2631-3Abstract
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 $$\sqrt{s}=7~\mathrm{TeV}$$. 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
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