
Lecture.16.Summary.Review2
... 1. There is no difference between changing the phase of the field operator of the fermion (by (r,t) at every point in space) and the effects of a gauge transformation [ -(1/e)µ (r,t) ] on the photon field! 2. Maxwell’s equations are invariant under A µ A µ - (1/e)µ (r,t) -- and, in particular, ...
... 1. There is no difference between changing the phase of the field operator of the fermion (by (r,t) at every point in space) and the effects of a gauge transformation [ -(1/e)µ (r,t) ] on the photon field! 2. Maxwell’s equations are invariant under A µ A µ - (1/e)µ (r,t) -- and, in particular, ...
Dark matter, neutron stars and strange quark matter
... magnetic field in the NS can cause collimated GRBs and the rotation of the NS could be a source of anisotropic emission. They have also investigated the effect of uncertainties introduced by different EoS. Recent measurements of the source of short GRB 090510 by Fermi LAT report an energy E = (1.08 ...
... magnetic field in the NS can cause collimated GRBs and the rotation of the NS could be a source of anisotropic emission. They have also investigated the effect of uncertainties introduced by different EoS. Recent measurements of the source of short GRB 090510 by Fermi LAT report an energy E = (1.08 ...
Poster
... successfully collecting data which already allowed a broad spectrum of physics analysis both concerning cosmic rays and the Earth radiation belts. Based on experience gathered during the first mission, a more ambitious detector, AMS-02, is being built to be installed on the ISS in 2007. The AMS-02 d ...
... successfully collecting data which already allowed a broad spectrum of physics analysis both concerning cosmic rays and the Earth radiation belts. Based on experience gathered during the first mission, a more ambitious detector, AMS-02, is being built to be installed on the ISS in 2007. The AMS-02 d ...
National Science Week Event with Girlguiding Worcestershire
... The Girlguides had chartered a train that would take approximately 400 Girlguides and Leaders from Kidderminster to London, where they would undertake an “I Spy…” challenge. This involved the Guides travelling around London in order to tick STEM (Science, Technology, Engineering and Mathematics) rel ...
... The Girlguides had chartered a train that would take approximately 400 Girlguides and Leaders from Kidderminster to London, where they would undertake an “I Spy…” challenge. This involved the Guides travelling around London in order to tick STEM (Science, Technology, Engineering and Mathematics) rel ...
PDF sample
... The ancient Greeks believed that everything is made from a few basic elements. The idea was basically correct; it was the details that were wrong. Their ‘earth, air, fire, and water’ are made of what today we know as the chemical elements. Pure water is made from two: hydrogen and oxygen. Air is larg ...
... The ancient Greeks believed that everything is made from a few basic elements. The idea was basically correct; it was the details that were wrong. Their ‘earth, air, fire, and water’ are made of what today we know as the chemical elements. Pure water is made from two: hydrogen and oxygen. Air is larg ...
Basics of Particle Physics - The University of Oklahoma
... constituents of matter and radiation, and the interactions between them. It is also called "high energy physics", because many elementary particles do not occur under normal circumstances in nature, but can be created and detected during energetic collisions of other particles, as is done in particl ...
... constituents of matter and radiation, and the interactions between them. It is also called "high energy physics", because many elementary particles do not occur under normal circumstances in nature, but can be created and detected during energetic collisions of other particles, as is done in particl ...
constitution of matter, the standard model
... could be explained by a few types of yet smaller objects. Murray Gell-Mann in 1964 gave them the name: quarks. This is a nonsense word used by James Joyce in his novel: “Finnegan's Wake” in his exclamation: "Three quarks for Muster Mark!" The quarks could explain all the observed baryons and mesons ...
... could be explained by a few types of yet smaller objects. Murray Gell-Mann in 1964 gave them the name: quarks. This is a nonsense word used by James Joyce in his novel: “Finnegan's Wake” in his exclamation: "Three quarks for Muster Mark!" The quarks could explain all the observed baryons and mesons ...
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... Coupling Constants and the Story of our Universe These next theories are in a less rigorous state and we shall talk about them, keeping in mind that they are at the ‘”edge” of what is understood today. Nevertheless, they represent a qualitative view of our universe, from the perspective of particle ...
... Coupling Constants and the Story of our Universe These next theories are in a less rigorous state and we shall talk about them, keeping in mind that they are at the ‘”edge” of what is understood today. Nevertheless, they represent a qualitative view of our universe, from the perspective of particle ...
Elementary Particles and the Forces of Nature
... emission changes the velocity of the matter particle. 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 ...
... emission changes the velocity of the matter particle. 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 ...
Strangeness production
Strangeness production is a signature and a diagnostic tool of quark–gluon plasma (or QGP) formation and properties. Unlike up and down quarks, from which everyday matter is made, strange quarks are formed in pair-production processes in collisions between constituents of the plasma. The dominant mechanism of production involves gluons only present when matter has become a quark–gluon plasma. When quark–gluon plasma disassembles into hadrons in a breakup process, the high availability of strange antiquarks helps to produce antimatter containing multiple strange quarks, which is otherwise rarely made. Similar considerations are at present made for the heavier charm flavor, which is made at the beginning of the collision process in the first interactions and is only abundant in the high-energy environments of CERN's Large Hadron Collider.