81 research outputs found
High Energy Physics in the Atmosphere: Phenomenology of Cosmic Ray Air Showers
The properties of cosmic rays with energies above 10**6 GeV have to be
deduced from the spacetime structure and particle content of the air showers
which they initiate. In this review we summarize the phenomenology of these
giant air showers. We describe the hadronic interaction models used to
extrapolate results from collider data to ultra high energies, and discuss the
prospects for insights into forward physics at the LHC. We also describe the
main electromagnetic processes that govern the longitudinal shower evolution,
as well as the lateral spread of particles. Armed with these two principal
shower ingredients and motivation from the underlying physics, we provide an
overview of some of the different methods proposed to distinguish primary
species. The properties of neutrino interactions and the potential of
forthcoming experiments to isolate deeply penetrating showers from baryonic
cascades are also discussed. We finally venture into a terra incognita endowed
with TeV-scale gravity and explore anomalous neutrino-induced showers.Comment: Typo in caption of Fig. 8 corrected, references adde
Measurement of the inelastic pp cross-section at a centre-of-mass energy of root s=7 TeV
The cross-section for inelastic proton-proton collisions, with at least one
prompt long-lived charged particle of transverse momentum
GeV/ in the pseudorapidity range , is measured by the LHCb
experiment at a centre-of-mass energy of TeV. The cross-section in
this kinematic range is determined to be mb within the spectrometer acceptance with an experimental uncertainty
that is dominated by systematic contributions. Extrapolation to the full phase
space, using PYTHIA 6, yields mb,
where the first uncertainty is experimental and the second is due to the
extrapolation.Comment: 15 pages, 2 figure
Le peintre Piat-Joseph Sauvage et la porcelaine
Froissart Cyrille, Whitehead John. Le peintre Piat-Joseph Sauvage et la porcelaine. In: Les cahiers de Mariemont, volume 32-33, 2005. CĂ©ramique. pp. 35-39
Here begynneth the thirde and fourthe boke of sir IohnÌ Froissart of the cronycles of Englande, Fraunce, Spaygne, Portyngale, Scotlande, Bretayne, Flaunders, and other places adioynyng, translated out of Frenche in to englysshe by Iohan Bourchier knyght lorde Berners, deputie generall of ye kynges towne of Calais and marchesse of the same, at the co[m]maundement of our most highe redouted souerayne lorde kyng Henry the eyght, kynge of Englande and of FraĂŒce [sic] [and] highe defender of the Christen faithe. [et]c
Here begynneth the first volum of sir Iohan Froyssart of the cronycles of Englande, Fraunce, Spayne, Portyngale, Scotlande, Bretayne, Flau[n]ders: and other places adioynynge. Tra[n]slated out of frenche into our maternall englysshe tonge, by Iohan Bourchier knight lorde Berners: at the co[m]maundement of oure moost highe redouted souerayne lorde kyng Henry the. viii. kyng of Englande and of Fraunce, [and] highe defender of the christen faythe. [et]c.
Validation of the shortened Hunter Syndrome-Functional Outcomes for Clinical Understanding Scale (HS-FOCUS)
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