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B + →J/  K + PowerPoint PPT Presentation


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B + →J/  K +. Mass = (5326.7±10.9) MeV /c 2 Momentum: p = 62.7 GeV /c, p T = 10.48 GeV /c Cos( a ) = 0.9999, dist = 2.03mm. B + →J/  K +. XY Projection. B + →J/  K +. [mm]. XY Projection. Primary vertex. B +. m +. Tracks from primary vertex. B decay vertex. J/ .

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B + →J/  K +

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B j k

B+→J/K+

Mass = (5326.7±10.9) MeV/c2Momentum: p = 62.7 GeV/c, pT = 10.48 GeV/cCos(a) = 0.9999, dist = 2.03mm


B j k1

B+→J/K+

XY Projection


B j k2

B+→J/K+

[mm]

XY Projection

Primary vertex

B+

m+

Tracks fromprimaryvertex

B decayvertex

J/

m-

K+

[mm]


B j k3

B+→J/K+

XY Projection

[mm]

Tracks fromprimaryvertex

Primary vertex

B+

m+

B decayvertex

J/

K+

m-

[mm]

Tracks from PV areforcedtocomefrom PV


B j k4

B+→J/K+

[x 0.2mm]

YZ Projection

[mm]


B j k5

B+→J/K+

[x 0.2mm]

YZ Projection

Tracks fromprimaryvertex

Primary vertex

B+

m+

B decayvertex

J/

m-

K+

[mm]


B j k6

B+→J/K+

YZ Projection

[x 0.2mm]

Tracks fromprimaryvertex

Primary vertex

B+

m+

J/

K+

m-

B decayvertex

[mm]

Tracks from PV areforcedtocomefrom PV


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