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Vub measurement using recoil of fully reconstructed Bs

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Subject:
From:
Daniele del Re <[log in to unmask]>
Date:
02 Jul 2002 16:09:22 -0700 (PDT)Tue, 02 Jul 2002 16:09:22 -0700 (PDT)
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Hi all,

 these are the results with qtot=1,0,-1

all   BRBR = 0.0229399 +- 0.00460877(stat) +- 0.00129881(MC stat)
B0    BRBR = 0.012789 +- 0.00714564(stat) +- 0.00213873(MC stat)
Bch   BRBR = 0.0342487 +- 0.00626896(stat) +- 0.00198699(MC stat)
ele   BRBR = 0.0206449 +- 0.00674007(stat) +- 0.00193(MC stat)
mu    BRBR = 0.0302033 +- 0.00694853(stat) +- 0.00211205(MC stat)
run1  BRBR = 0.0217162 +- 0.00688244(stat) +- 0.00133788(MC stat)
run2  BRBR = 0.0267552 +- 0.00638066(stat) +- 0.00153122(MC stat)
sb1   BRBR = 0.0128984 +- 0.00922635(stat) +- 0.00155814(MC stat)
sb2   BRBR = 0.0232536 +- 0.00675362(stat) +- 0.00135769(MC stat)
sb3   BRBR = 0.0329242 +- 0.00940973(stat) +- 0.00141367(MC stat)

all   BRBR = 0.0449741 +- 0.0325314(stat) +- 0.0100493(MC stat)
B0    BRBR = 0.06635 +- 0.0709527(stat) +- 0.0233577(MC stat)
Bch   BRBR = 0.0359869 +- 0.0318245(stat) +- 0.00994949(MC stat)
ele   BRBR = 0.05369 +- 0.0570719(stat) +- 0.0179691(MC stat)
mu    BRBR = 0.0408047 +- 0.033385(stat) +- 0.0104672(MC stat)
run1  BRBR = 5.57578e-12 +- 0.0917058(stat) +- 0.00874411(MC stat)
run2  BRBR = 0.0789242 +- 0.0417903(stat) +- 0.0123837(MC stat)
sb1   BRBR = 0.00239296 +- 0.348837(stat) +- 0.0105019(MC stat)
sb2   BRBR = 0.101932 +- 0.0460996(stat) +- 0.0138662(MC stat)
sb3   BRBR = 0.0113704 +- 0.116207(stat) +- 0.00946192(MC stat)

 I don't see any particular problem here but comparing with qtot=0
I see the following (large) differences (execpt in general the shift up)

 * run1-run2
   ---------

  qtot = 0

run1  BRBR = 0.0104572 +- 0.00605525(stat) +- 0.00104202(MC stat)
run2  BRBR = 0.0227972 +- 0.00592453(stat) +- 0.00147955(MC stat)

  qtot =-1,0,1

run1  BRBR = 0.0217162 +- 0.00688244(stat) +- 0.00133788(MC stat)
run2  BRBR = 0.0267552 +- 0.00638066(stat) +- 0.00153122(MC stat)

 the very large difference is in run1!!!


 * sb1-sb2-sb3
   -----------

  qtot = 0

sb1   BRBR = 0.0117645 +- 0.00912257(stat) +- 0.00137626(MC stat)
sb2   BRBR = 0.0174494 +- 0.00653623(stat) +- 0.00128782(MC stat)
sb3   BRBR = 0.0192477 +- 0.0082641(stat) +- 0.00104398(MC stat)

  qtot =-1,0,1

sb1   BRBR = 0.0128984 +- 0.00922635(stat) +- 0.00155814(MC stat)
sb2   BRBR = 0.0232536 +- 0.00675362(stat) +- 0.00135769(MC stat)
sb3   BRBR = 0.0329242 +- 0.00940973(stat) +- 0.00141367(MC stat)

  sb1 ok, sb2 part of the problem, sb3 vrey large difference!!!



 The combination of these two information can tell us something.
 - run1 and run2 have a different breco composition
 - same (for sure) for sb1, sb2, sb3.

The difference could be related with the breco composition (I will
try to see te same breakdown in run1 only)


 * depleted plots
   --------------

 compare (this is the whole sample)

  qtot =0

http://www.slac.stanford.edu/~daniele/vub/
datadeplFINALnewmixcbfitresults_nocat.eps

  qtot =-1,0,1

http://www.slac.stanford.edu/~daniele/vub/
datadeplch101FINALnewmixcbfitresults_nocat.eps


 the excess at high Mx is larger for qtot=-1,0,1


 Daniele




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