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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | Name: CDF_2008_S7782535
Year: 2008
Summary: CDF Run II $b$-jet shape paper
Experiment: CDF
Collider: Tevatron Run 2
SpiresID: 7782535
Status: UNVALIDATED
Authors:
- Alison Lister <alister@fnal.gov>
- Emily Nurse <nurse@hep.ucl.ac.uk>
- Andy Buckley <andy.buckley@cern.ch>
References:
- arXiv:0806.1699
- Phys.Rev.D78:072005,2008
RunInfo:
Requires $2 \rightarrow 2$ QCD scattering processes. The minimum jet $E_\perp$ is 52\;GeV,
so kinematic cuts on pTmin may be required for statistical validity.
NumEvents: 1000000
Beams: [p-, p+]
Energies: [1960]
PtCuts: [0]
Description:
A measurement of the shapes of $b$-jets using 300 pb$^{-1}$ of data
obtained with CDF II in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV.
The measured quantity is the average integrated jet shape, which is
computed over an ensemble of jets. This quantity is expressed as
$\Psi(r/R) = \langle\frac{p_\perp(0 \rightarrow r)}{p_\perp(0 \rightarrow
R)}\rangle$, where $p_\perp(0 \rightarrow r)$ is the scalar sum of the
transverse momenta of all objects inside a sub-cone of radius $r$ around
the jet axis. The integrated shapes are by definition normalized such
that $\Psi(r/R =1) = 1$. The measurement is done in bins of jet pT
in the range 52 to 300\;GeV/$c$. The jets have $|\eta| < 0.7$. The $b$-jets
are expected to be broader than inclusive jets. Moreover, $b$-jets
containing a single $b$-quark are expected to be narrower than those
containing a $b \bar{b}$ pair from gluon splitting.
BibKey: Aaltonen:2008de
BibTeX: '@Article{Aaltonen:2008de,
author = "Aaltonen, T. and others",
collaboration = "CDF",
title = "{Measurement of $b$-jet Shapes in Inclusive Jet Production
in $p \bar{p}$ Collisions at $\sqrt{s}$ = 1.96-TeV}",
journal = "Phys. Rev.",
volume = "D78",
year = "2008",
pages = "072005",
eprint = "0806.1699",
archivePrefix = "arXiv",
primaryClass = "hep-ex",
doi = "10.1103/PhysRevD.78.072005",
SLACcitation = "%%CITATION = 0806.1699;%%"
}'
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