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A search for anomalous heavy-flavor quark production in association with w bosons
A search for anomalous heavy-flavor quark production in association with w bosons

... procedures to remove an intracranial tumor, subsequent radiation therapy, and recovery period. In my second year, I took my first quantum physics course. This course, very welltaught by Prof. Priscilla Cushman, was my introduction to so many ideas and phenomena that I had never before even imagined. ...
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Long-Ranged Oppositely Charged Interactions for Designing New

... that the complex drying forces of such clusters minimize the second moment of the mass distribution of the clusters [19]. Several methods make use, in some way or another, of the polymerization of organic monomers associated with spherical particles [1,12,20–23]. The methodologies include swelling o ...
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LHC Upgrade - Particle Physics

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Looking for Magnetic Monopoles AT The Large Hadron Collider

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J. J. Thomson (1856

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Nuclear Physics A. Stationary States of Nuclei

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Electron production in proton collisions with atoms and

... velocity regardless of its sign of charge. In the highenergy region where the PWBA is valid and does not depend on projectile mass, only the velocity of the particle is relevant. For example, antiprotons and positrons with the same high speed produce the same target ionization. At intermediate to lo ...
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... connected to the quasi-parallel region. Their energy spectrum appears above 30 keY to be exponential in energy per charge with a typical e-folding value —15 keY per unit charge [23,24]. The variations in the e-folding energy per charge from one observation period to the next are much larger than tho ...
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The Energy Spectrum of Very High Energy Gamma Rays

... The goal of this thesis is to implement the methods developed for the HEGRA experiment to reconstruct the geometry and energy of the airshowers induced by the cosmic high-energy gamma rays into the software environment of the H.E.S.S. experiment. Furthermore, using the implemented algorithms, a sear ...
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Abstract - RHIG AT YALE

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DOC - UF Physics - University of Florida

Homonuclear ionizing collisions of laser-cooled
Homonuclear ionizing collisions of laser-cooled

... The ionizing collisions of Eqs. 共1兲 and 共2兲 are highly exothermic, as the internal energy of two He* atoms exceeds the 24.6 eV ionization energy of the He atom by more than 15 eV. As differences between PI and AI are unimportant for the work presented here 共the reaction mechanisms have been discusse ...
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Report - Jefferson Lab

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... Whereas, Samkhya may explain the behaviour, or mechanics of subtle or invisible prāna, or invisible matter, by the discipline of yoga. Mathematics may not provide formulation for principles within the behaviour of minute particles of matter. Physics may succeed in predicting behaviour based on the ...
McLerran.pdf
McLerran.pdf

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Antimatter

In particle physics, antimatter is material composed of antiparticles, which have the same mass as particles of ordinary matter but opposite charges, as well as other particle properties such as lepton and baryon numbers and quantum spin. Collisions between particles and antiparticles lead to the annihilation of both, giving rise to variable proportions of intense photons (gamma rays), neutrinos, and less massive particle–antiparticle pairs. The total consequence of annihilation is a release of energy available for work, proportional to the total matter and antimatter mass, in accord with the mass–energy equivalence equation, E = mc2.Antiparticles bind with each other to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton (the antiparticle of the proton) can form an antihydrogen atom. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements. Studies of cosmic rays have identified both positrons and antiprotons, presumably produced by collisions between particles of ordinary matter. Satellite-based searches of cosmic rays for antideuteron and antihelium particles have yielded nothing. There is considerable speculation as to why the observable universe is composed almost entirely of ordinary matter, as opposed to a more even mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. The process by which this inequality between particles and antiparticles developed is called baryogenesis.Antimatter in the form of anti-atoms is one of the most difficult materials to produce. Antimatter in the form of individual anti-particles, however, is commonly produced by particle accelerators and in some types of radioactive decay. The nuclei of antihelium (both helium-3 and helium-4) have been artificially produced with difficulty. These are the most complex anti-nuclei so far observed.
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