Latest Results from ATLAS Higgs Search
... CERN and via video link at ICHEP, the International Conference for High Energy Physics in Melbourne, Australia, where detailed analyses will be presented later this week. At CERN, preliminary results were ...
... CERN and via video link at ICHEP, the International Conference for High Energy Physics in Melbourne, Australia, where detailed analyses will be presented later this week. At CERN, preliminary results were ...
Notes on Elementary Particle Physics
... Every particle (massive or massless2 ) is subject to gravitational interaction. Particles that are electrically charged experience electromagnetic interaction. There are two more interactions responsible for happenings in the domain of elementary particles, namely the strong interaction responsible ...
... Every particle (massive or massless2 ) is subject to gravitational interaction. Particles that are electrically charged experience electromagnetic interaction. There are two more interactions responsible for happenings in the domain of elementary particles, namely the strong interaction responsible ...
Jack Steinberger - Nobel Lecture
... (QCD). Other studies such as the production of “prompt” neutrinos, the search for finite neutrino masses and neutrino oscillations, the search for heavy leptons or other new particles, or the measurement of proton and neutron structure functions, elastic and pseudoelastic cross-sections, and other e ...
... (QCD). Other studies such as the production of “prompt” neutrinos, the search for finite neutrino masses and neutrino oscillations, the search for heavy leptons or other new particles, or the measurement of proton and neutron structure functions, elastic and pseudoelastic cross-sections, and other e ...
MuNew Sesaps (1) WM
... ionization: for lead with its dE/dx = 1.22 MeVcm2/g and density ρ = 11.350 g/cm3 we expect to have dE/dl = ρdE/dx = 11.350 x 1.122 MeV/cm = 12.73 MeV/cm. ...
... ionization: for lead with its dE/dx = 1.22 MeVcm2/g and density ρ = 11.350 g/cm3 we expect to have dE/dl = ρdE/dx = 11.350 x 1.122 MeV/cm = 12.73 MeV/cm. ...
Elementary Particles and the Forces of Nature
... The force-carrying particle then collides with another matter particle and is absorbed. This collision changes the velocity of the second particle, just as if there had been a force between the two matter particles. It is an important property of ' the force-carrying particles that they do not obey ...
... The force-carrying particle then collides with another matter particle and is absorbed. This collision changes the velocity of the second particle, just as if there had been a force between the two matter particles. It is an important property of ' the force-carrying particles that they do not obey ...
1601.07738v1
... A recent ‘beam splitting’ experiment at the LCLS [1] apparently demonstrated that after a microbunched electron beam is kicked on a large angle compared to the divergence of FEL radiation pulses, the microbunching wave front is readjusted along the new direction of motion of the kicked beam. Therefo ...
... A recent ‘beam splitting’ experiment at the LCLS [1] apparently demonstrated that after a microbunched electron beam is kicked on a large angle compared to the divergence of FEL radiation pulses, the microbunching wave front is readjusted along the new direction of motion of the kicked beam. Therefo ...
... been placed on the electron-spin correlation parameter A [2], which can be used in combination with τn to extract the quark mixing matrix Vud . For the same reason, the neutrino-proton correlation a has also received recent attention. Less interest has been paid to the neutrino-spin correlation B, w ...
Plasma wave undulator for laser-accelerated electrons
... plasma waves can be generated through the beating of two copropagating long laser pulses satisfying the condition #2 − #1 = # p $# p = !nee2 / m$0"1/2 is the plasma frequency, #1 and #2 the laser frequencies of each laser pulse%, the selfmodulation instability $a single long laser pulse breaks in a ...
... plasma waves can be generated through the beating of two copropagating long laser pulses satisfying the condition #2 − #1 = # p $# p = !nee2 / m$0"1/2 is the plasma frequency, #1 and #2 the laser frequencies of each laser pulse%, the selfmodulation instability $a single long laser pulse breaks in a ...
1 Proton and Electron Mass Determination S. Reucroft* and E. G. H.
... (30) of fundamental particles of which 14 have never been directly observed in an experiment. It hypothesizes the existence of four fundamental fields of which only one has been directly observed. A fifth field (gravitation), that has been observed, is excluded from the Standard Model. Most particle ...
... (30) of fundamental particles of which 14 have never been directly observed in an experiment. It hypothesizes the existence of four fundamental fields of which only one has been directly observed. A fifth field (gravitation), that has been observed, is excluded from the Standard Model. Most particle ...
Adventures at Nanoscale: Superconductivity
... 5. How can electrons pair if they are negatively charged? Since electrons are negatively charged they repel each other, so for electrons to get closer together (to form what is known as cooper pairs) there needs to be a positive electric charge that they are attracted to. The positive charge is due ...
... 5. How can electrons pair if they are negatively charged? Since electrons are negatively charged they repel each other, so for electrons to get closer together (to form what is known as cooper pairs) there needs to be a positive electric charge that they are attracted to. The positive charge is due ...
Electric charge distribution - User web pages on web
... First, let’s consider a heavy nuclear target, so that pf pi and work out Z2d/d)o Choose the example of 248 MeV/c electrons scattering from 208Pb as in Krane, fig. 3.2 ...
... First, let’s consider a heavy nuclear target, so that pf pi and work out Z2d/d)o Choose the example of 248 MeV/c electrons scattering from 208Pb as in Krane, fig. 3.2 ...
watson - HEP Group
... Make use of large CALICE datasets to optimise detector design Test hadronic models / reduce dependence on MC model unknowns Design detectors that we have proven we can build Cannot test complete PFA algorithms directly with testbeam data – but can examine some key areas, e.g. fragment remova ...
... Make use of large CALICE datasets to optimise detector design Test hadronic models / reduce dependence on MC model unknowns Design detectors that we have proven we can build Cannot test complete PFA algorithms directly with testbeam data – but can examine some key areas, e.g. fragment remova ...
Particle Physics 2011
... reputation in this field. IceCube, the world’s largest particle detector, which fills a cubic kilometre of deep Antarctic ice, and the Cherenkov Telescope Array (CTA), which is currently in the preparatory phase, will allow us to retrieve information about distant galaxies from neutrinos and high-en ...
... reputation in this field. IceCube, the world’s largest particle detector, which fills a cubic kilometre of deep Antarctic ice, and the Cherenkov Telescope Array (CTA), which is currently in the preparatory phase, will allow us to retrieve information about distant galaxies from neutrinos and high-en ...
2004,Torino - INFN Torino
... 1931 Chadwick discovers the neutron. Nuclear binding and decay become primary problems. 1933 Anderson discovers the positron. 1933-34 Fermi puts forth a theory of beta decay that introduces the weak interaction. This is the first theory to explicitly use neutrinos and particle flavor changes. 1933-3 ...
... 1931 Chadwick discovers the neutron. Nuclear binding and decay become primary problems. 1933 Anderson discovers the positron. 1933-34 Fermi puts forth a theory of beta decay that introduces the weak interaction. This is the first theory to explicitly use neutrinos and particle flavor changes. 1933-3 ...
SEARCHES FOR NEW PARTICLES AT THE LHC
... ATLAS & CMS ready for First LHC Beams First proton-proton collisions A new heavy boson discovered with mass ~125 × mass of proton Almost 30 years! ...
... ATLAS & CMS ready for First LHC Beams First proton-proton collisions A new heavy boson discovered with mass ~125 × mass of proton Almost 30 years! ...
Slide 1
... Several arguments already in the ’70-’80 lead to think that at some temperature and/or density quarks “can roam freely in a medium”-> QGP 1) ASYMPTOTIC FREEDOM At large T there are interaction q2 ~ (3T)2 and the coupling is weak 2) OVERLAP (percolation) Hadrons Overlap does not allow to identify the ...
... Several arguments already in the ’70-’80 lead to think that at some temperature and/or density quarks “can roam freely in a medium”-> QGP 1) ASYMPTOTIC FREEDOM At large T there are interaction q2 ~ (3T)2 and the coupling is weak 2) OVERLAP (percolation) Hadrons Overlap does not allow to identify the ...
DESY
The Deutsches Elektronen-Synchrotron (english German Electron Synchrotron) commonly referred to by the abbreviation DESY, is a national research center in Germany that operates particle accelerators used to investigate the structure of matter. It conducts a broad spectrum of inter-disciplinary scientific research in three main areas: particle and high energy physics; photon science; and the development, construction and operation of particle accelerators. Its name refers to its first project, an electron synchrotron. DESY is publicly financed by the Federal Republic of Germany, the States of Germany, and the German Research Foundation (DFG). DESY is a member of the Helmholtz Association and operates at sites in Hamburg and Zeuthen.