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DARodrigues, ABRodrigues, EPerez, PRRoiser, SRomanovsky, VVidal, ARRotondo, MRouvinet, JRuf, TRuffini, FRuiz, HValls, PRSabatino, GSilva, JJSSagidova, NSail, PSaitta, BGuimaraes, VSSedes, BSSantacesaria, RRios, CSSantovetti, ESapunov, MSarti, ASatriano, CSatta, ASavrie, MSavrina, DSchiller, MSchindler, HSchlupp, MSchmelling, MSchmidt, BSchneider, OSchopper, ASchune, MHSchwemmer, RSciascia, BSciubba, ASeco, MSemennikov, ASenderowska, KSepp, ISerra, NSerrano, JSeyfert, PShapkin, MShapoval, IShcheglov, YShears, TShekhtman, LShevchenko, OShevchenko, VShires, ACoutinho, RSSimi, GSirendi, MSkidmore, NSkwarnicki, TSmith, NASmith, ESmith, ESmith, JSmith, MSnoek, HSokoloff, MDSoler, FJPSoomro, FSouza, DDe Paula, BSSpaan, BSparkes, ASpradlin, PStagni, FStahl, SSteinkamp, OStevenson, SStoica, SStone, SStoraci, BStracka, SStraticiuc, MStraumann, UStroili, RSubbiah, VKSun, LSutcliffe, WSwientek, SSyropoulos, VSzczekowski, MSzczypka, PSzilard, DSzumlak, TT'Jampens, STeklishyn, MTellarini, GTeodorescu, ETeubert, FThomas, CThomas, Evan Tilburg, JTisserand, VTobin, MTolk, STomassetti, LTonelli, DTopp-Joergensen, STorr, NTournefier, ETourneur, STran, MTTresch, MTsaregorodtsev, ATsopelas, PTuning, NGarcia, MUUkleja, AUstyuzhanin, AUwer, UVagnoni, VValenti, GVallier, AGomez, RVRegueiro, PVSierra, CVVecchi, SVelthuis, JJVeltri, MVeneziano, GVesterinen, MViaud, BVieira, DVilasis-Cardona, XVollhardt, AVolyanskyy, DVoong, DVorobyev, AVorobyev, VVoss, CVoss, Hde Vries, JAWaldi, RWallace, CWallace, RWandernoth, SWang, JWard, DRWarrington, NWatson, NKWebber, ADWebsdale, DWhitehead, MWicht, JWiechczynski, JWiedner, DWiggers, LWilkinson, GWilliams, MPWilliams, MWilson, FFWimberley, JWishahi, JWislicki, WWitek, MWormser, GWotton, SAWright, SWu, SWyllie, KXie, YXing, ZYang, ZYuan, XYushchenko, OZangoli, MZavertyaev, MZhang, FZhang, LZhang, WCZhang, YZhelezov, AZhokhov, AZhong, LZvyagin, A2024-07-182024-07-180031-90071079-7114http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11160The first measurement of the effective lifetime of the (B) over bar (o)(s) meson in the decay (B) over bar (o)(s) -> D-s(-) D-s(+) 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 (B) over bar (o)(s) -> D-s(-) D-s(+) 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 (B) over bar (o)(s) mass eigenstate of Gamma(L) 0.725 +/- 0.014 +/- 0.009 ps(-1). The (B) over bar (o)(s) lifetime is also measured using the flavor-specific (B) over bar (o)(s) -> D- D-s(+) decay to be 1.52 +/- 0.15 +/- 0.01 ps.EnglishB-SCP-VIOLATIONDECAYMeasurement of the Bso → Ds-Ds+ and Bso → Ds-Ds+ Effective LifetimesArticle