GDR-PH-QCD, IPNO 7/XII/2012
... • The residual energy turns into kinetic energy of the motion with relative velocity • The strong chromo-EM field leads to an effective loss of color. Fermi statistics: identical quarks are repulsed. The remaining quark of different flavor is attracted to one of the identical quarks, creating a comp ...
... • The residual energy turns into kinetic energy of the motion with relative velocity • The strong chromo-EM field leads to an effective loss of color. Fermi statistics: identical quarks are repulsed. The remaining quark of different flavor is attracted to one of the identical quarks, creating a comp ...
NUCLEAR FUSION ENERGY
... deuterium, the mass-2 isotope of hydrogen, with high-energy deuteron in a cyclotron.[1] To accelerate the deuteron beam a great deal of energy is required, most of which appeared as heat in the target. As a result, no net useful energy was produced. In the 1950s the first large-scale but uncontrolle ...
... deuterium, the mass-2 isotope of hydrogen, with high-energy deuteron in a cyclotron.[1] To accelerate the deuteron beam a great deal of energy is required, most of which appeared as heat in the target. As a result, no net useful energy was produced. In the 1950s the first large-scale but uncontrolle ...
X-ray binaries
... source, the companion star has to be massive (≥ 10 M⊙) in order to drive a strong wind. In this configuration, the optical luminosity of the companion star dominates the total emission from the system and the rate of mass transfer is determined by the strength and speed of the wind and the orbital se ...
... source, the companion star has to be massive (≥ 10 M⊙) in order to drive a strong wind. In this configuration, the optical luminosity of the companion star dominates the total emission from the system and the rate of mass transfer is determined by the strength and speed of the wind and the orbital se ...
Surface tension of compressed, superheavy atoms
... such “exotic” neutron rich nuclei whose mass numbers are much larger than that of ordinary nuclei. Another major purpose here is to study the effects of the electrons and electromagnetic interaction on the surface properties of such a system. The study presented in this article would give us a furth ...
... such “exotic” neutron rich nuclei whose mass numbers are much larger than that of ordinary nuclei. Another major purpose here is to study the effects of the electrons and electromagnetic interaction on the surface properties of such a system. The study presented in this article would give us a furth ...
Electric-dipole moments of elementary particles
... under the parity transformation ( P )for which r + -r or the time-reversal transformation ( T )for which t + -t. Since the only means by which orientation of the particle can be specified is by the orientation of its angular momentum, the dipole moment D and the angular momentum J must transform the ...
... under the parity transformation ( P )for which r + -r or the time-reversal transformation ( T )for which t + -t. Since the only means by which orientation of the particle can be specified is by the orientation of its angular momentum, the dipole moment D and the angular momentum J must transform the ...
Non-variable cosmologically distant gamma
... ray propagation is limited because of large (orders of magnitude) uncertainties of the relevant model parameters. This especially concerns the IGMF. The current measurements yield only an upper limit of B ∼ 10−9 G for the component parallel to the line of sight (Ryu et al. 1998; Blasi & Olinto 1999) ...
... ray propagation is limited because of large (orders of magnitude) uncertainties of the relevant model parameters. This especially concerns the IGMF. The current measurements yield only an upper limit of B ∼ 10−9 G for the component parallel to the line of sight (Ryu et al. 1998; Blasi & Olinto 1999) ...
Radiant Energy Research Manual 3.0.0
... added to its ferrite core. The high-voltage, high-frequency is the result of the transformer being driven into resonance at about 143Khz. The flyback transformer T1 outputs around 10KV, 15KV peak to peak at the above mentioned frequency and is inputted to a solid-state multiplier section. The multip ...
... added to its ferrite core. The high-voltage, high-frequency is the result of the transformer being driven into resonance at about 143Khz. The flyback transformer T1 outputs around 10KV, 15KV peak to peak at the above mentioned frequency and is inputted to a solid-state multiplier section. The multip ...
Nucleus Chapter 1
... The smallest unit of length with which most of us are familiar, is the millimetre (a thousandth of a metre), but for many objects which are only visible through a microscope, length scales are more sensibly expressed in terms of microns. A micron is a millionth of a metre, or a thousandth of a milli ...
... The smallest unit of length with which most of us are familiar, is the millimetre (a thousandth of a metre), but for many objects which are only visible through a microscope, length scales are more sensibly expressed in terms of microns. A micron is a millionth of a metre, or a thousandth of a milli ...
Ch 32) Elementary Particles
... The protons move in a vacuum inside two D-shaped cavities, as shown in Fig. 32–2. Each time they pass into the gap between the “dees,” a voltage accelerates them (the electric force), increasing their speed and increasing the radius of curvature of their path in the magnetic field. After many revolu ...
... The protons move in a vacuum inside two D-shaped cavities, as shown in Fig. 32–2. Each time they pass into the gap between the “dees,” a voltage accelerates them (the electric force), increasing their speed and increasing the radius of curvature of their path in the magnetic field. After many revolu ...
Subauroral morning proton spots (SAMPS) as a result of
... expected for protons of 2 keV mean energy. We do not have coincident particle measurements for this case, but this lowenergy value is in stark contrast to the DMSP observations on 6 September and 27 August. At higher proton energies the expected ratio is larger (20 for 8 keV protons), and this also ...
... expected for protons of 2 keV mean energy. We do not have coincident particle measurements for this case, but this lowenergy value is in stark contrast to the DMSP observations on 6 September and 27 August. At higher proton energies the expected ratio is larger (20 for 8 keV protons), and this also ...
Dynamics of neutrino-driven winds: inclusion of accurate weak
... Roberts et al. (2010). As can be seen, the mass outflow rate increases with the anti-neutrino luminosity, and the MF enhances the total mass of the NDW. r-element distribution patterns depend on the entropy, expansion timescale and electron fraction. For the nucleon entropy, we found that it changes ...
... Roberts et al. (2010). As can be seen, the mass outflow rate increases with the anti-neutrino luminosity, and the MF enhances the total mass of the NDW. r-element distribution patterns depend on the entropy, expansion timescale and electron fraction. For the nucleon entropy, we found that it changes ...
Modern
... different towards one chamber and describes a semi-circle inside that chamber due to the magnetic field present. The proton is then accelerated across the gap through a potential difference of V and describes another semi-circle of greater radius in the other chamber since its speed has increased. T ...
... different towards one chamber and describes a semi-circle inside that chamber due to the magnetic field present. The proton is then accelerated across the gap through a potential difference of V and describes another semi-circle of greater radius in the other chamber since its speed has increased. T ...
Nuclear drip line
In nuclear physics, the boundaries for nuclear particle-stability are called drip lines. Atomic nuclei contain both protons and neutrons—the number of protons defines the identity of that element (ie, carbon always has 6 protons), but the number of neutrons within that element may vary (carbon-12 and its isotope carbon-13, for example). The number of isotopes each element may have is visually represented by plotting boxes, each of which represents a unique nuclear species, on a graph with the number of neutrons increasing on the abscissa (X axis) and number of protons increasing along the ordinate (Y axis). The resulting chart is commonly referred to as the table of nuclides, and is to nuclear physics what the periodic table of the elements is to chemistry.An arbitrary combination of protons and neutrons does not necessarily yield a stable nucleus. One can think of moving up and/or to the right across the nuclear chart by adding one type of nucleon (i.e. a proton or neutron, both called nucleons) to a given nucleus. However, adding nucleons one at a time to a given nucleus will eventually lead to a newly formed nucleus that immediately decays by emitting a proton (or neutron). Colloquially speaking, the nucleon has 'leaked' or 'dripped' out of the nucleus, hence giving rise to the term ""drip line"". Drip lines are defined for protons, neutrons, and alpha particles, and these all play important roles in nuclear physics. The nucleon drip lines are at the extreme of the proton-to-neutron ratio: at p:n ratios at or beyond the driplines, no stable nuclei can exist. The location of the neutron drip line is not well known for most of the nuclear chart, whereas the proton and alpha driplines have been measured for a wide range of elements. The nucleons drip out of such unstable nuclei for the same reason that water drips from a leaking faucet: in the water case, there is a lower potential available that is great enough to overcome surface tension and so produces a droplet; in the case of nuclei, the emission of a particle from a nucleus, against the strong nuclear force, leaves the total potential of the nucleus and the emitted particle in a lower state. Because nucleons are quantized, only integer values are plotted on the table of isotopes; this indicates that the drip line is not linear but instead looks like a step function up close.