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Title: Measurement of the Lifetime of the Doubly Charmed Baryon Ξ++cc
Authors: Aaij, Roel
Adeva, Bernardo
Adinolfi, Marco
Aidala, Christine
Panshin, Gennady Leonidovich
Strokov, Sergey Aleksandrovich
Vagner, Aleksandr Rudolfovich
Issue Date: 2018
Publisher: Томский политехнический университет
Citation: Measurement of the Lifetime of the Doubly Charmed Baryon Ξ++cc / R. Aaij [et al.] // Physical Review Letters. — 2018. — Vol. 121, iss. 5. — [052002, 10 p.].
Abstract: The first measurement of the lifetime of the doubly charmed baryon Ξ++cc is presented, with the signal reconstructed in the final state Λ+cK−π+π+. The data sample used corresponds to an integrated luminosity of 1.7  fb−1, collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV. The Ξ++cc lifetime is measured to be 0.256+0.024−0.022(stat)±0.014(syst)  ps.
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