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First observation of forward Z → b b ¯ production in pp collisions at s = 8 TeV
- Collaboration, LHCb;
- Aaij, R;
- Adeva, B;
- Adinolfi, M;
- Ajaltouni, Z;
- Akar, S;
- Albrecht, J;
- Alessio, F;
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Published Web Location
http://doi.org/10.1016/j.physletb.2017.11.066No data is associated with this publication.
Abstract
The decay Z→bb¯ is reconstructed in pp collision data, corresponding to 2 fb−1 of integrated luminosity, collected by the LHCb experiment at a centre-of-mass energy of s=8 TeV. The product of the Z production cross-section and the Z→bb¯ branching fraction is measured for candidates in the fiducial region defined by two particle-level b-quark jets with pseudorapidities in the range 2.2<η<4.2, with transverse momenta pT>20 GeV and dijet invariant mass in the range 45