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A variational nonlinear Hausdorff-Young inequality in the discrete setting
Following the works of Lyons and Oberlin, Seeger, Tao, Thiele and Wright, we
relate the variation of certain discrete curves on the Lie group
to the corresponding variation of their linearized versions on
the Lie algebra. Combining this with a discrete variational
Menshov-Paley-Zygmund theorem, we establish a variational Hausdorff-Young
inequality for a discrete version of the nonlinear Fourier transform on
.Comment: 16 page
Electron-Hadron Correlations in pp Collisions at \sqrt{s} = 2.76 TeV with the ALICE experiment
In this work we are studying the relative beauty to charm production in pp
collisions at \sqrt{s} = 2.76 TeV, through correlations between electrons from
heavy-flavour decay and charged hadrons, with the ALICE detector at the LHC.
This study represents a baseline for the analysis in heavy-ion collisions where
heavy flavour production is a powerful tool to study the Quark Gluon Plasma
(QGP).Comment: Proceeding of the XII HADRON PHYSICS (2012, Bento Gon\c{c}alvez,
Brazil) conference. 3 Pages, 4 Figure
Measurements of electrons from heavy-flavour hadron decays in pp, p-Pb and Pb-Pb collisions with ALICE at the LHC
Heavy-flavour hadrons, i. e. hadrons carrying charm or beauty quarks, are a
well-suited probe to study the Quark-Gluon Plasma (QGP) in relativistic
heavy-ion collisions. For this reason, measurements of electrons from
heavy-flavour hadron decays have been performed in pp, p-Pb and Pb-Pb
collisions at the LHC with the ALICE detector. Results for the nuclear
modification factors ( and ) support a final-state
energy loss of heavy quarks in central Pb-Pb collisions and, in semi-central
collisions a positive elliptic flow coefficient of electrons from
heavy-flavour hadron decays was observed. Furthermore, a double-ridge structure
was observed in the measured two-particle angular correlation distribution,
triggered by heavy-flavour decay electrons, in high-multiplicity p-Pb
collisions relative to low-multiplicity p-Pb collisions and to pp collisions.Comment: Hard Probes 2013 conference proceedin
Measurements of the correlation between electrons from heavy-flavour hadron decays and light hadrons with ALICE at the LHC
In relativistic heavy-ion physics two-particle correlations provide a very
useful tool to investigate the Quark-Gluon Plasma (QGP). This observable is
sensitive to several of the properties of the QGP such as resonances,
interaction of partons with the medium and collective effects (e. g. elliptic
flow). In the present work, the correlation function between electrons from
heavy-flavour hadron decays and light hadrons was measured in pp and Pb-Pb
collisions (central and semi-central). Furthermore, in pp collisions the
relative beauty contribution to the total cross section of electrons from
heavy-flavour decays was estimated by comparing the measured correlation with
Monte-Carlo templates.Comment: Strangeness in Quark Matter 2013 conference proceedin
Validation of back-calculation equations for juvenile bluefish (Pomatomus saltatrix) with the use of tetracycline-marked otoliths
In recent years, a decrease in the abundance of bluefish (Pomatomus saltatrix) has been observed (Fahay et al., 1999; Munch and Conover, 2000) that has led to increased interest in a better understanding the life history of the species. Estimates of several young-of-the-year (YOY) life history characteristics, including the importance and use of estuaries as nursery habitat (Kendall and Walford, 1979) and size-dependant mortality (Hare and Cowen, 1997), are reliant upon the accuracy of growth determination. By using otoliths, it is possible to use back-calculation formulae (BCFs) to estimate the length at certain ages and stages of development for many species of fishes. Use of otoliths to estimate growth in this way can provide the same information as long-term laboratory experiments and tagging studies without the time and expense of rearing or recapturing fish. The difficulty in using otoliths in this way lies in validating that 1) there is constancy in the periodicity of the increment formation, and 2) there is no uncoupling of the relationship between somatic and otolith growth.
To date there are no validation studies demonstrating the relationship between otolith growth and somatic growth for bluefish. Daily increment formation in otoliths has been documented for larval (Hare and Cowen, 1994) and juvenile bluefish (Nyman and Conover, 1988). Hare and Cowen (1995) found ageindependent variability in the ratio of otolith size to body length in early age bluefish, although these differences varied between ontogenetic stages. Furthermore, there have been no studies where an evaluation of back-calculation methods has been combined with a validation of otolithderived lengths for juvenile bluefish
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