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F.J.P.Soomro F.Souza D.Souza De Paula B.Spaan B.Sparkes A.Spradlin P.Stagni F.Stahl S.Steinkamp O.Stevenson S.Stoica S.Stone S.Storaci B.Stracka S.Straticiuc M.Straumann U.Stroili R.Subbiah V.K.Sun L.Sutcliffe W.Swientek S.Syropoulos V.Szczekowski M.Szczypka P.Szilard D.Szumlak T.T'Jampens S.Teklishyn M.Tellarini G.Teodorescu E.Teubert F.Thomas C.Thomas E.Van Tilburg J.Tisserand V.Tobin M.Tolk S.Tomassetti L.Tonelli D.Topp-Joergensen S.Torr N.Tournefier E.Tourneur S.Tran M.T.Tresch M.Tsaregorodtsev A.Tsopelas P.Tuning N.Ubeda Garcia M.Ukleja A.Ustyuzhanin A.Uwer U.Vagnoni V.Valenti G.Vallier A.Vazquez Gomez R.Vazquez Regueiro P.Vázquez Sierra C.Vecchi S.Velthuis J.J.Veltri M.Veneziano G.Vesterinen M.Viaud B.Vieira D.Vilasis-Cardona X.Vollhardt A.Volyanskyy D.Voong D.Vorobyev A.Vorobyev V.Voß C.Voss H.De Vries J.A.Waldi R.Wallace C.Wallace R.Wandernoth S.Wang J.Ward D.R.Warrington N.Watson N.K.Webber A.D.Websdale D.Whitehead M.Wicht J.Wiechczynski J.Wiedner D.Wiggers L.Wilkinson G.Williams M.P.Williams M.Wilson F.F.Wimberley J.Wishahi J.Wislicki W.Witek M.Wormser G.Wotton S.A.Wright S.Wu S.Wyllie K.Xie Y.Xing Z.Yang Z.Yuan X.Yushchenko O.Zangoli M.Zavertyaev M.Zhang F.Zhang L.Zhang W.C.Zhang Y.Zhelezov A.Zhokhov A.Zhong L.Zvyagin A.2024-07-222024-07-22201410797114http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/16814The first measurement of the effective lifetime of the B̄s0 meson in the decay B̄s0→Ds-Ds+ is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb-1, collected by the LHCb experiment. The measured value of the B̄s0→Ds-Ds+ effective lifetime is 1.379±0.026±0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B̄s0 mass eigenstate of ΓL=0.725±0. 014±0.009 ps-1. The B̄s0 lifetime is also measured using the flavor-specific B̄s0→D-Ds+ decay to be 1.52±0.15±0.01 ps. © 2014 CERN, for the LHCb Collaboration.EnglishAll Open Access; Hybrid Gold Open AccessAtomic physicsData setDecay widthsEffective lifetimeEigen stateIntegrated luminosityMeasured valuesProton proton collisionsPhysicsArticle10.1103/PhysRevLett.112.111802