Hi all,
There is ONE event that ends up in the J/psi stream in the latest "V0" stripping of the 2009 real data. It is one candidate that passes all three J/psi selections run in that stream. It's a bit heavy for a J/psi (3214 MeV):
Name E M P Pt phi Vz MeV MeV MeV MeV mrad mm J/psi(1S) 20348.72 3214.84 20093.17 1534.90 -1462.45 -14.73 +-->mu+ 17063.02 105.66 17062.69 1736.06 -2197.93 -14.63 +-->mu- 3283.62 105.66 3281.92 1190.53 -100.64 -15.84
It has a large Pt, the muons have an IP chi2 of less than 0.5. One muon is well identified, the other one isn't. If anyone wants to look at it in Panoramix, please do.
The PFN at CERN is /castor/cern.ch/grid/lhcb/data/2009/DST/00005848/0000/00005848_00000004_1.Jpsi.dst , from which you can extract the LFN. As it's stripped it should also be copied to Nikhef.
Cheers,
Patrick
... and in the Bmuon stream one gets a B->J/spiKs candidate. But this one I really don't believe to be true ;-)
PrintSelBDDBd2JpsiKS.PrintDecay INFO <---------------------------------- Particle ----------------------------------> Name E M P Pt phi Vz MeV MeV MeV MeV mrad mm B0 28516.06 5190.21 28039.75 496.68 -6.22 -14.75 +-->J/psi(1S) 20348.72 3214.84 20093.17 1534.90 -1462.45 -14.73 |+-->mu+ 17063.02 105.66 17062.69 1736.06 -2197.93 -14.63 |+-->mu- 3283.62 105.66 3281.92 1190.53 -100.64 -15.84 +-->KS0 8173.05 520.15 8156.48 1528.09 1357.38 376.90 +-->pi+ 2547.49 139.57 2543.66 290.12 1385.88 2321.25 +-->pi- 5616.10 139.57 5614.37 1237.29 1345.07 2333.64
Cheers,
Patrick
On Thu, 2010-02-04 at 19:02 +0100, Patrick Koppenburg wrote:
Hi all,
There is ONE event that ends up in the J/psi stream in the latest "V0" stripping of the 2009 real data. It is one candidate that passes all three J/psi selections run in that stream. It's a bit heavy for a J/psi (3214 MeV):
Name E M P Pt phiVz MeV MeV MeV MeV mrad mm J/psi(1S) 20348.72 3214.84 20093.17 1534.90 -1462.45 -14.73 +-->mu+ 17063.02 105.66 17062.69 1736.06 -2197.93 -14.63 +-->mu- 3283.62 105.66 3281.92 1190.53 -100.64 -15.84
It has a large Pt, the muons have an IP chi2 of less than 0.5. One muon is well identified, the other one isn't. If anyone wants to look at it in Panoramix, please do.
The PFN at CERN is /castor/cern.ch/grid/lhcb/data/2009/DST/00005848/0000/00005848_00000004_1.Jpsi.dst , from which you can extract the LFN. As it's stripped it should also be copied to Nikhef.
Cheers,
Patrick
-
Patrick Koppenburg