Publication
Title
Measurement of **b**-jet shapes in inclusive jet production in $p\overline{p}$ collisions at $\sqrt{s}$=1.96 TeV
Author
Institution/Organisation
CDF Collaboration
Abstract
 We present a measurement of the shapes of b-jets using 300  pb-1 of data obtained with the upgraded Collider Detector at Fermilab (CDF II) in pp̅ collisions at center-of-mass energy √s=1.96  TeV. This measurement covers a wide transverse momentum range, from 52 to 300  GeV/c. Samples of heavy-flavor enhanced jets together with inclusive jets are used to extract the average shapes of b-jets. 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 bb̅ pair from gluon splitting. The measured b-jet shapes are found to be significantly broader than expected from the pythia and herwig Monte Carlo simulations. This effect may arise from an underestimation of the fraction of b-jets originating from gluon splitting in these simulations. The jet shape distributions provided in this paper could be compared to any full Monte Carlo simulation and could be used to further constrain the various parameters.
Language
English
Source (journal)
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Publication
Lancaster, Pa : 2008
ISSN
0556-2821
Volume/pages
78:7(2008), p. 072005,1-072005,17
ISI
000260574800018
Full text (Publishers DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address