The beauty of string theory - Institute for Advanced Study
... Discovering supersymmetry In a world based on supersymmetry, when a particle moves in space, it also can vibrate in the new fermionic dimensions. This new kind of vibration produces a cousin or “superpartner” for every elementary particle that has the same electric charge but differs in other proper ...
... Discovering supersymmetry In a world based on supersymmetry, when a particle moves in space, it also can vibrate in the new fermionic dimensions. This new kind of vibration produces a cousin or “superpartner” for every elementary particle that has the same electric charge but differs in other proper ...
Higgs Field and Quantum Entanglement
... spontaneous symmetry breaking of the underlying local symmetry triggers conversion of components of this Higgs field to Goldstone bosons which interact with (at least some of) the other fields in the theory, so as to produce mass terms for (at least some of) the gauge bosons. This mechanism may also ...
... spontaneous symmetry breaking of the underlying local symmetry triggers conversion of components of this Higgs field to Goldstone bosons which interact with (at least some of) the other fields in the theory, so as to produce mass terms for (at least some of) the gauge bosons. This mechanism may also ...
annalen der - MPP Theory Group
... observed energy spectra seem to lack the expected absorption features. Axion-like particles can provide a resolution to this puzzle. Here, the anomalous transparency can be explained if photons convert into ALPs, travel unimpeded a fraction of the distance to us, and then reappear close to the solar ...
... observed energy spectra seem to lack the expected absorption features. Axion-like particles can provide a resolution to this puzzle. Here, the anomalous transparency can be explained if photons convert into ALPs, travel unimpeded a fraction of the distance to us, and then reappear close to the solar ...
Of Quarks and Gluons
... One way to see quarks is to use the fact that we can liberate quarks for a short time, at high energy scales. One such process is e+ e− → qq̄, which use the fact that a photon can couple directly to qq̄. The quarks don’t live very long and decay by producing a “jet” a shower of particles that result ...
... One way to see quarks is to use the fact that we can liberate quarks for a short time, at high energy scales. One such process is e+ e− → qq̄, which use the fact that a photon can couple directly to qq̄. The quarks don’t live very long and decay by producing a “jet” a shower of particles that result ...
chapterS4BuildingBlo..
... • The more we know about where a particle is located, the less we can know about its momentum, and conversely, the more we know about its momentum, the less we can know about its location ...
... • The more we know about where a particle is located, the less we can know about its momentum, and conversely, the more we know about its momentum, the less we can know about its location ...
Lecture 13 - McMaster Physics and Astronomy
... In one dimension, the velocities are represented by positive or negative numbers to indicate direction. 2) Kinetic Energy is conserved: ...
... In one dimension, the velocities are represented by positive or negative numbers to indicate direction. 2) Kinetic Energy is conserved: ...
Experiment sees the arrow of time Experiment sees the arrow of time
... great accuracy. However, it is known that weak interactions do not conserve CP symmetry. This was confirmed experimentally by Christenson, Cronin, Fitch and Turlay in 1964 when they measured rare (1-in-500) decays of long-lived kaons into pairs of pions. The neutral-kaon system is still the only sys ...
... great accuracy. However, it is known that weak interactions do not conserve CP symmetry. This was confirmed experimentally by Christenson, Cronin, Fitch and Turlay in 1964 when they measured rare (1-in-500) decays of long-lived kaons into pairs of pions. The neutral-kaon system is still the only sys ...
Calibration of the ZEUS calorimeter for hadrons and jets
... • CAL objects with one or more tracks more complicated….. ...
... • CAL objects with one or more tracks more complicated….. ...
A. What Is an Atom?
... cathode-ray tube like the one shown on the next slide. He discovered negatively charged particles that are now known as electrons. B. Like Plums in Pudding After learning that atoms contain electrons, Thomson proposed a new model of the atom. Thomson thought that electrons were mixed throughout an a ...
... cathode-ray tube like the one shown on the next slide. He discovered negatively charged particles that are now known as electrons. B. Like Plums in Pudding After learning that atoms contain electrons, Thomson proposed a new model of the atom. Thomson thought that electrons were mixed throughout an a ...
v - Purdue Physics
... Fermilab: Tevatron CERN: Large Hadron Collider Applications: study nucleus – accelerate particles (protons) and shoot at nucleus to observe ...
... Fermilab: Tevatron CERN: Large Hadron Collider Applications: study nucleus – accelerate particles (protons) and shoot at nucleus to observe ...
from uni
... the imaging lens and the detector can easily be changed in order to change the spectral range and optical resolution. Although scanning is necessary the system does not suer from problems of con ned geometry typical of some scanning systems and systems using microscopes. Spectral resolution and spe ...
... the imaging lens and the detector can easily be changed in order to change the spectral range and optical resolution. Although scanning is necessary the system does not suer from problems of con ned geometry typical of some scanning systems and systems using microscopes. Spectral resolution and spe ...
Introduction to Nano-Optics
... nm and deposited on an ITO substrate. Sphere at end of waveguide is excited using the tip of near-field scanning optical microscope (NSOM), and wave is detected using fluorescent nanospheres. ...
... nm and deposited on an ITO substrate. Sphere at end of waveguide is excited using the tip of near-field scanning optical microscope (NSOM), and wave is detected using fluorescent nanospheres. ...
PHY313 - CEI544 The Mystery of Matter From Quarks to the
... elements [10]; it is also consistent with no CP asymmetry at the 1.7 level. Peter Paul 04/14/05 ...
... elements [10]; it is also consistent with no CP asymmetry at the 1.7 level. Peter Paul 04/14/05 ...
No 7 Glossary
... Any particle that is small compared to the size of the atomic nucleus. The microscopic world is very rich in subnuclear particles with strange names. Examples: protons, neutrons, electrons, muons, neutrinos, quarks and so on. ...
... Any particle that is small compared to the size of the atomic nucleus. The microscopic world is very rich in subnuclear particles with strange names. Examples: protons, neutrons, electrons, muons, neutrinos, quarks and so on. ...
Quantum Reality
... If one boson is in a particular quantum state, all other bosons are "invited in" to share the same state. The more bosons that pile into the state, the stronger becomes the tendency for others to join them. In such a state, a very large number of particle will have a single quantum wave function. Th ...
... If one boson is in a particular quantum state, all other bosons are "invited in" to share the same state. The more bosons that pile into the state, the stronger becomes the tendency for others to join them. In such a state, a very large number of particle will have a single quantum wave function. Th ...
From Quantum Mechanics to String Theory
... existence of anti-particles forces are mediated by the exchange of virtual particles, which carry energy and momentum inconsistent with their masses using quantum uncertainty. This leads to a decrease of force strength with distance, and in the case of massive mediators, an effective range for the f ...
... existence of anti-particles forces are mediated by the exchange of virtual particles, which carry energy and momentum inconsistent with their masses using quantum uncertainty. This leads to a decrease of force strength with distance, and in the case of massive mediators, an effective range for the f ...
Slides
... They could be directly pair produced at the Tevatron 1/R ~ 450 GeV + (looking like eg massive quark production) - hep-ph/0201300 ...
... They could be directly pair produced at the Tevatron 1/R ~ 450 GeV + (looking like eg massive quark production) - hep-ph/0201300 ...
ATLAS experiment
ATLAS (A Toroidal LHC ApparatuS) is one of the seven particle detector experiments (ALICE, ATLAS, CMS, TOTEM, LHCb, LHCf and MoEDAL) constructed at the Large Hadron Collider (LHC), a particle accelerator at CERN (the European Organization for Nuclear Research) in Switzerland. The experiment is designed to take advantage of the unprecedented energy available at the LHC and observe phenomena that involve highly massive particles which were not observable using earlier lower-energy accelerators. It is hoped that it will shed light on new theories of particle physics beyond the Standard Model.ATLAS is 46 metres long, 25 metres in diameter, and weighs about 7,000 tonnes; it contains some 3000 km of cable. The experiment is a collaboration involving roughly 3,000 physicists from over 175 institutions in 38 countries. The project was led for the first 15 years by Peter Jenni and between 2009 and 2013 was headed by Fabiola Gianotti. Since 2013 it has been headed by David Charlton. It was one of the two LHC experiments involved in the discovery of a particle consistent with the Higgs boson in July 2012.