1. Updates on B  KX(3872) for BGM S. L. Olsen U of Hawaii S.-K. Choi Gyeongsang U

2. B 0  K s  ’

3. B -  K -  ’

4. Nev=76.0 +13.1 -12.2 M = 3871.6 ± 0.7MeV Signif. = 6.6  B ±  K ± X(3872); X      J/ 

5. Nev = 11.0 +4.8 -4.0 M = 3871.5 ± 1.6 MeV Signif. = 2.6   M = 0.1 ± 1.7 MeV B 0  K s X(3872); X      J/ 

6. = N ev (B 0  K S X) N ev (B -  K - X) N ev (B 0  K S  ’) N ev (B -  K -  ’ )   (B -  K - X )  (B 0  K S X )  (B   K   ’ )  (B 0  K S  ’ )  from PDG Assume ~1 = 0.82 +0.39 -0.33 324.2 +19.3 -18.6 1841.5 +45.4 -45.1 Ratio of Branching fractions Br(B 0  K S X) Br(B   K  X) Br(B 0  K S  ’ ) Br(B   K   ’ ) Br(B 0  K S  ’ ) Br(B   K   ’ ) 76.0 +13.1 -12.2 11.0 +4.8 -4.0

7. Roofit Result with peaking Background –Ratio of Branching Fractions – Mass difference  M = 0.1 ± 1.7 MeV Br(B 0  K S X) Br(B   K  X) = 0.82 +0.39 -0.33 Br(B 0  K S  ’ ) Br(B   K   ’ )