Abstract
Using a data set corresponding to an integrated luminosity of 3 fb−1, collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV, the effective lifetime in the Bs0→J/ψη decay mode, τeff, is measured to beτeff=1.479±0.034 (stat)±0.011 (syst) ps. Assuming CP conservation, τeff corresponds to the lifetime of the light Bs0 mass eigenstate. This is the first measurement of the effective lifetime in this decay mode.
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CITATION STYLE
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., … Zucchelli, S. (2016). Measurement of the Bs0→J/ψη lifetime. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 762, 484–492. https://doi.org/10.1016/j.physletb.2016.10.006
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