THE THEORETICAL INTERPRETATION OF SOME COSMIC RAYS
... The primary cosmic rays (as electrons, protons, neutrons, and nuclei such as Helium, Carbon, Oxygen, Iron) interacts with the interstellar gas and appear the secondary particles as: muons, pions, kaons, antiprotons, positrons, and nuclei as Lithium, Berylium, Boron. Most of the primaries in the uppe ...
... The primary cosmic rays (as electrons, protons, neutrons, and nuclei such as Helium, Carbon, Oxygen, Iron) interacts with the interstellar gas and appear the secondary particles as: muons, pions, kaons, antiprotons, positrons, and nuclei as Lithium, Berylium, Boron. Most of the primaries in the uppe ...
Facts and Mysteries in Elementary Particle Physics
... to be a reason for this multiplicity. It ought to be something you could understand at the end of Act One. But no. We understand many things about particles and their interactions, but this and other mysteries make it very clear that we are nowhere close to a full understanding. And, most important: ...
... to be a reason for this multiplicity. It ought to be something you could understand at the end of Act One. But no. We understand many things about particles and their interactions, but this and other mysteries make it very clear that we are nowhere close to a full understanding. And, most important: ...
Spin-density wave in a quantum wire
... The Rashba constant αR is phenomenological parameter that describes the magnitude of ~ s−o . The magnitude of asymmetry and hence the Rashba coupling strength can be conE trolled by the external gate voltage. In addition to the noted asymmetry of confining potentials (which include quantum-well pote ...
... The Rashba constant αR is phenomenological parameter that describes the magnitude of ~ s−o . The magnitude of asymmetry and hence the Rashba coupling strength can be conE trolled by the external gate voltage. In addition to the noted asymmetry of confining potentials (which include quantum-well pote ...
Thermoelectric effects in a Luttinger liquid
... power law G(T)⬃T 2/g⫺2 ; such behavior has been reported in recent experiments.7,8 Heat transport in a LL was first considered in Ref. 9, where it was shown that in an infinite homogeneous LL the thermal conductance K(T) is not renormalized by the interactions, i.e., K(T)⫽K 0 (T)⫽( 2 /3)k B2 T/h, ...
... power law G(T)⬃T 2/g⫺2 ; such behavior has been reported in recent experiments.7,8 Heat transport in a LL was first considered in Ref. 9, where it was shown that in an infinite homogeneous LL the thermal conductance K(T) is not renormalized by the interactions, i.e., K(T)⫽K 0 (T)⫽( 2 /3)k B2 T/h, ...
Developments in Unipolar Charging of Airborne Particles: Theories
... charging process of airborne particles and thus to model the unipolar chargers. On the other hand, with the advent and application of various measuring techniques, the electric charges measurement of airborne particles was made possible for researchers. In this work, we mainly present a summary of t ...
... charging process of airborne particles and thus to model the unipolar chargers. On the other hand, with the advent and application of various measuring techniques, the electric charges measurement of airborne particles was made possible for researchers. In this work, we mainly present a summary of t ...
Detailed information may be found here
... Electrodynamics is an “old” theory dating back into the formative years of a science later to be called physics. Yet it is strangely modern: It is in fact fully relativistic (and was so long before Einstein); it is usually taught before quantum mechanics, yet many of the tools usually only properly ...
... Electrodynamics is an “old” theory dating back into the formative years of a science later to be called physics. Yet it is strangely modern: It is in fact fully relativistic (and was so long before Einstein); it is usually taught before quantum mechanics, yet many of the tools usually only properly ...
SMP-J workshop (theory part), Jan 25 2017
... Is difference among parton multiplicities 2,3,4 understood? HERWIG7 first comparisons MMHT14 and default tune CMS tune is not good for UE+ND(!) but default tune is Inclusive jet cross section still no good with LO H7… but much better than with H++ Current main issue: Delta_min^2J has peak at 0 min m ...
... Is difference among parton multiplicities 2,3,4 understood? HERWIG7 first comparisons MMHT14 and default tune CMS tune is not good for UE+ND(!) but default tune is Inclusive jet cross section still no good with LO H7… but much better than with H++ Current main issue: Delta_min^2J has peak at 0 min m ...
Stemming Arabic Conjunctions and Prepositions
... The incorrect words we obtain are due to the collection itself containing many incorrect words. Approximately twice as many words still start with possible particles as seen in the first approach. This implies that the RC approach leaves the first letter of many words unchanged. This might be desirabl ...
... The incorrect words we obtain are due to the collection itself containing many incorrect words. Approximately twice as many words still start with possible particles as seen in the first approach. This implies that the RC approach leaves the first letter of many words unchanged. This might be desirabl ...
point charge: field and force
... The electrostatic force between two point charges can be thought of from two points of view. According to Coulomb’s law, the particles exert a force on each other even though they are not in direct contact; this is the action-at-a-distance concept. An alternative approach is the field concept where ...
... The electrostatic force between two point charges can be thought of from two points of view. According to Coulomb’s law, the particles exert a force on each other even though they are not in direct contact; this is the action-at-a-distance concept. An alternative approach is the field concept where ...
1 - APS Link Manager
... under the influence of the IR field. As expected, the obtained streaking delays (not shown) are in excellent agreement with the full TDSE results shown in Fig. 1. Since the short-ranged part of the model potential VN−1 (r), reflects, on the mean-field level, many-electron effects, tEWS approximates ...
... under the influence of the IR field. As expected, the obtained streaking delays (not shown) are in excellent agreement with the full TDSE results shown in Fig. 1. Since the short-ranged part of the model potential VN−1 (r), reflects, on the mean-field level, many-electron effects, tEWS approximates ...
Trapped particles and asymmetry-induced transport
... with various m and k z are readily observed15 at frequencies below the plasma E⫻B rotation frequency, i.e., f ⱗm f E . The mode consists of trapped particles on either side of an electrostatic potential barrier which execute E⫻B drift oscillations that are 180° out of phase, while passing partic ...
... with various m and k z are readily observed15 at frequencies below the plasma E⫻B rotation frequency, i.e., f ⱗm f E . The mode consists of trapped particles on either side of an electrostatic potential barrier which execute E⫻B drift oscillations that are 180° out of phase, while passing partic ...
Search for anomalous production of prompt same-sign
... of integrated luminosity taken in 2012 at a centre-of-mass energy of s = 8 TeV with the ATLAS detector [25] at the Large Hadron Collider (LHC). The same-sign dilepton pairs can be either two electrons (e± e± ), two muons (µ± µ± ), or one electron and one muon (e± µ± ), and must have a transverse mom ...
... of integrated luminosity taken in 2012 at a centre-of-mass energy of s = 8 TeV with the ATLAS detector [25] at the Large Hadron Collider (LHC). The same-sign dilepton pairs can be either two electrons (e± e± ), two muons (µ± µ± ), or one electron and one muon (e± µ± ), and must have a transverse mom ...
Entanglement and the black hole information paradox
... 8.2 Firewalls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 9 Conclusion ...
... 8.2 Firewalls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 9 Conclusion ...
Simultaneous determination of PM fractions, particle number
... aforementioned measurements in a precise and reliable way and to achieve a good correlation to measured results from gravimetric standard reference methods, the optical aerosol spectrometer has to fulfil various technical requirements. These requirements comprise for example an implemented unique ca ...
... aforementioned measurements in a precise and reliable way and to achieve a good correlation to measured results from gravimetric standard reference methods, the optical aerosol spectrometer has to fulfil various technical requirements. These requirements comprise for example an implemented unique ca ...
observational evidence for dark matter
... the heart of the galaxy. The shape of this rotation curve reveals the distribution of matter in the galaxy. If the mass distribution followed that of the light, the orbital motion of stars outside the central bulge would decrease sharply with distance; in the same way that the inner planets of a Sol ...
... the heart of the galaxy. The shape of this rotation curve reveals the distribution of matter in the galaxy. If the mass distribution followed that of the light, the orbital motion of stars outside the central bulge would decrease sharply with distance; in the same way that the inner planets of a Sol ...
Chapter 20 - Solutions
... This formula indicates that the force and the electric field point in the same direction for a positively charged particle, and in opposite directions for a negatively charged particle. Hint C.2 Determining the direction of the electric field The acceleration of the particle can be determined from t ...
... This formula indicates that the force and the electric field point in the same direction for a positively charged particle, and in opposite directions for a negatively charged particle. Hint C.2 Determining the direction of the electric field The acceleration of the particle can be determined from t ...
Standard Model
The Standard Model of particle physics is a theory concerning the electromagnetic, weak, and strong nuclear interactions, as well as classifying all the subatomic particles known. It was developed throughout the latter half of the 20th century, as a collaborative effort of scientists around the world. The current formulation was finalized in the mid-1970s upon experimental confirmation of the existence of quarks. Since then, discoveries of the top quark (1995), the tau neutrino (2000), and more recently the Higgs boson (2013), have given further credence to the Standard Model. Because of its success in explaining a wide variety of experimental results, the Standard Model is sometimes regarded as a ""theory of almost everything"".Although the Standard Model is believed to be theoretically self-consistent and has demonstrated huge and continued successes in providing experimental predictions, it does leave some phenomena unexplained and it falls short of being a complete theory of fundamental interactions. It does not incorporate the full theory of gravitation as described by general relativity, or account for the accelerating expansion of the universe (as possibly described by dark energy). The model does not contain any viable dark matter particle that possesses all of the required properties deduced from observational cosmology. It also does not incorporate neutrino oscillations (and their non-zero masses).The development of the Standard Model was driven by theoretical and experimental particle physicists alike. For theorists, the Standard Model is a paradigm of a quantum field theory, which exhibits a wide range of physics including spontaneous symmetry breaking, anomalies, non-perturbative behavior, etc. It is used as a basis for building more exotic models that incorporate hypothetical particles, extra dimensions, and elaborate symmetries (such as supersymmetry) in an attempt to explain experimental results at variance with the Standard Model, such as the existence of dark matter and neutrino oscillations.