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M.D.Soler 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.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.2024-07-222024-07-22201411266708http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/17065A search for previously unobserved decays of beauty baryons to the final states K0spπ- and K0 spK- is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb- of pp collisions. The Λ0b → ̄K pπ- decay is observed with a significance of 8.6σ, with branching fraction (Equation Presented), where the uncertainties are statistical, systematic, from the ratio of fragmentation fractions f Λ0b/fd, and from the branching fraction of the B0 → K0π+π - normalisation channel, respectively. A first measurement is made of the CP asymmetry, giving (Equation Presented). No significant signals are seen for Λ0b → K0spK - decays, Ξ0b decays to both the K 0spπ- and K0spK - final states, and the Λ0b → D-s(→ K0sK-)p decay, and upper limits on their branching fractions are reported.EnglishAll Open Access; Gold Open AccessArticle10.1007/JHEP04(2014)087