Measurement of the Bottom contribution to non-photonic electron production in $p+p$ collisions at $\sqrt{s} $=200 GeV

Measurement of the Bottom contribution to non-photonic electron production in $p+p$ collisions at $\sqrt{s}$ =200 GeV

Collaboration

Jul, 2010

6 pages

Published in:

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DOI:

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Abstract: (arXiv)

The contribution of

B

meson decays to non-photonic electrons, which are mainly produced by the semi-leptonic decays of heavy flavor mesons, in

p+p

collisions at

\sqrt{s} =

200 GeV has been measured using azimuthal correlations between non-photonic electrons and hadrons. The extracted

B

decay contribution is approximately 50% at a transverse momentum of

p_{T} \geq 5

GeV/

c

. These measurements constrain the nuclear modification factor for electrons from

B

and

D

meson decays. The result indicates that

B

meson production in heavy ion collisions is also suppressed at high

p_{T}

.

Note:

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