ibm_seminar - Stony Brook University
... etc.). In unbroken SUSY, selectron mass = electron mass etc. We know this is not true, so SUSY is a broken symmetry. All the other properties of the selectron are like the electron (charge, couplings). There are many model variants, and many parameters, so it will be difficult to unscramble. SUSY ...
... etc.). In unbroken SUSY, selectron mass = electron mass etc. We know this is not true, so SUSY is a broken symmetry. All the other properties of the selectron are like the electron (charge, couplings). There are many model variants, and many parameters, so it will be difficult to unscramble. SUSY ...
The Higgs Boson - Particle Physics Group
... Masses that are not masses 1. As a W propagates through space and time, it interacts with this nonzero Higgs field… 2. Which gives it an energy…. 3. Even if it has no kinetic or potential energy… 4. Which means it has, to all intents and purposes, a mass. Without breaking gauge ...
... Masses that are not masses 1. As a W propagates through space and time, it interacts with this nonzero Higgs field… 2. Which gives it an energy…. 3. Even if it has no kinetic or potential energy… 4. Which means it has, to all intents and purposes, a mass. Without breaking gauge ...
statpp2006
... • How to combine results from different runs? • Discovered something new? • If not discovery, what we can say from the experiment? Prescriptions to these problems often involve considerations based on statistics. ...
... • How to combine results from different runs? • Discovered something new? • If not discovery, what we can say from the experiment? Prescriptions to these problems often involve considerations based on statistics. ...
Handout. Using the Fine Structure Constant to Push on the Standard
... o We cool the Penning trap to 0.1 K, just above absolute zero, so that the various motions of the electron are slowed. o The electron’s cyclotron motion is actually forced to be in its ground quantum state by this low temperature. o We detect the electron’s oscillations in the trap by the electrical ...
... o We cool the Penning trap to 0.1 K, just above absolute zero, so that the various motions of the electron are slowed. o The electron’s cyclotron motion is actually forced to be in its ground quantum state by this low temperature. o We detect the electron’s oscillations in the trap by the electrical ...
Note 1
... not only the graviton, but spacetime itself is emergent. The fundamental degrees of freedom of the theory do not live in the same spacetime as the final theory, or in some cases do not live in any spacetime at all. Spacetime is an approximate, collective description of these underlying degrees of fr ...
... not only the graviton, but spacetime itself is emergent. The fundamental degrees of freedom of the theory do not live in the same spacetime as the final theory, or in some cases do not live in any spacetime at all. Spacetime is an approximate, collective description of these underlying degrees of fr ...
幻灯片 1 - 中国科学院理论物理研究所
... of low multi-pole correlation (if not due to systematic error) certainly indicates that something unusual happened 60 e-foldings before the end of inflation. The running of spectral index of the primordial power spectrum can not be explained by the usual inflation too, it may not be to crazy to spec ...
... of low multi-pole correlation (if not due to systematic error) certainly indicates that something unusual happened 60 e-foldings before the end of inflation. The running of spectral index of the primordial power spectrum can not be explained by the usual inflation too, it may not be to crazy to spec ...
ПУБЛИКАЦИИ ЛАБОРАТОРИИ ФИЗИКИ ФУНДАМЕНТАЛЬНЫХ
... UNIVERSE // Journal of Modern Physics, 8, (2013). We discuss a special class of quantum gravity phenomena that occur on the scale of the Universe as a whole at any stage of its evolution. These phenomena are a direct consequence of the zero rest mass of gravitons, conformal non-invariance of the gra ...
... UNIVERSE // Journal of Modern Physics, 8, (2013). We discuss a special class of quantum gravity phenomena that occur on the scale of the Universe as a whole at any stage of its evolution. These phenomena are a direct consequence of the zero rest mass of gravitons, conformal non-invariance of the gra ...
Working Group Talks Gobinda Majumdar Issues In The Construction
... • In SUSY we need gaugino mass nonuniversality: M2/M1~4 at the weak scale • We found a good benchmark point with this property by “deforming” the SPS1a. • Substantial rate of dilepton cascade decays at this point will allow for a precise determination of the spectrum at the LHC • A more general scan ...
... • In SUSY we need gaugino mass nonuniversality: M2/M1~4 at the weak scale • We found a good benchmark point with this property by “deforming” the SPS1a. • Substantial rate of dilepton cascade decays at this point will allow for a precise determination of the spectrum at the LHC • A more general scan ...
The Cosmological Constant From The Viewpoint Of String Theory
... natural to just decide – as Einstein did – that we do not like the cosmological constant, and set it to zero. Classically, it may involve some fine-tuning to set the cosmological constant to zero, but once this is done, that is the end of the story. Quantum mechanically, it will not help to just set ...
... natural to just decide – as Einstein did – that we do not like the cosmological constant, and set it to zero. Classically, it may involve some fine-tuning to set the cosmological constant to zero, but once this is done, that is the end of the story. Quantum mechanically, it will not help to just set ...
Fundamental Physics - Physics Seminar
... • Good Physics Case for Axions and WISPs explore `The Low Energy Frontier’ • Low energy experiments test energy scales ...
... • Good Physics Case for Axions and WISPs explore `The Low Energy Frontier’ • Low energy experiments test energy scales ...
“Elegant Universe” Part One “Einstein`s Dream”
... a. The electromagnetic force is weaker than the force of gravity b. The force of gravity is stronger than the electromagnetic force c. The electromagnetic force is stronger than gravity 9. _____ A group of physicists led by Niels Bohr found that atoms are made of protons, electrons and electrons… th ...
... a. The electromagnetic force is weaker than the force of gravity b. The force of gravity is stronger than the electromagnetic force c. The electromagnetic force is stronger than gravity 9. _____ A group of physicists led by Niels Bohr found that atoms are made of protons, electrons and electrons… th ...
Reevaluation of dark matter direct detection rate
... Spin-independent (SI) and spin-dependent (SD) Event rate is proportional to A3 (SI) or J(J+1) (SD) Almost experiments are sensitive to SI interaction. ...
... Spin-independent (SI) and spin-dependent (SD) Event rate is proportional to A3 (SI) or J(J+1) (SD) Almost experiments are sensitive to SI interaction. ...
All forces arise from the interactions between different objects
... ll forces occur from the interactions between different objects. Only a few distinct kinds of interactions are at work. Gravitational forces arise between objects because of their masses. Electromagnetic forces are due to electric charges at rest or in motion. Nuclear forces (strong and weak) contro ...
... ll forces occur from the interactions between different objects. Only a few distinct kinds of interactions are at work. Gravitational forces arise between objects because of their masses. Electromagnetic forces are due to electric charges at rest or in motion. Nuclear forces (strong and weak) contro ...
Note 01 - UF Physics
... Fermions: The top set of particles gives 3×(2+2×3)=24 fermions with spin=½. They are conventionally called matter. Three columns represent 3 nearly identical generations; the masses being the only difference between them. This three-generation structure allows for not yet understood phenomena of mix ...
... Fermions: The top set of particles gives 3×(2+2×3)=24 fermions with spin=½. They are conventionally called matter. Three columns represent 3 nearly identical generations; the masses being the only difference between them. This three-generation structure allows for not yet understood phenomena of mix ...
The validity of the scientific method in modern physics
... using the most recent technology — such as the standard experimentally. For example, a hypothesized symmetry model of particle physics and the existence of dark between fermions and bosons central to string theory — matter. supersymmetry — predicts that each kind of particle has an as-yet-unseen par ...
... using the most recent technology — such as the standard experimentally. For example, a hypothesized symmetry model of particle physics and the existence of dark between fermions and bosons central to string theory — matter. supersymmetry — predicts that each kind of particle has an as-yet-unseen par ...
Quantum Mechanics and General Relativity
... of quantum mechanics is that which deals with the smallest structures in the universe, for example electrons, quarks, muons and other elementary particles. From this spring such applications as nuclear physics and solid state electronics. General Relativity on the other hand describes particularly t ...
... of quantum mechanics is that which deals with the smallest structures in the universe, for example electrons, quarks, muons and other elementary particles. From this spring such applications as nuclear physics and solid state electronics. General Relativity on the other hand describes particularly t ...
Rehearsal questions
... 1. What is meant by spontaneous symmetry breaking? 2. Why is the Higgs mechanism introduced? 3. Which symmetry is broken by the BEH (Brout-Englert-Higgs) mechanism? 4. Which low energy symmetries remain unbroken? 5. How do fermions acquire mass? ...
... 1. What is meant by spontaneous symmetry breaking? 2. Why is the Higgs mechanism introduced? 3. Which symmetry is broken by the BEH (Brout-Englert-Higgs) mechanism? 4. Which low energy symmetries remain unbroken? 5. How do fermions acquire mass? ...
Exceptional Lie Groups, E-infinity Theory and
... 2. Holographic principle and E-infinity theory In 1993, Noble laureate Gerard 'tHooft proposed the dimensional reduction in quantum gravity theories. This is known now as the Holographic principle which was extended by Leonard Susskind. [17]. The Holographic principle is about encoding information ...
... 2. Holographic principle and E-infinity theory In 1993, Noble laureate Gerard 'tHooft proposed the dimensional reduction in quantum gravity theories. This is known now as the Holographic principle which was extended by Leonard Susskind. [17]. The Holographic principle is about encoding information ...
Why I Still Like String Theory
... pointed out over at NEW, there are alternatives. LQG may succeed but to do so it must give a low energy perturbation theory with gravitons or explain why things work differently. Other alternatives mentioned by Smolin are more like toy models but I would add higher spin gravity as another idea that ...
... pointed out over at NEW, there are alternatives. LQG may succeed but to do so it must give a low energy perturbation theory with gravitons or explain why things work differently. Other alternatives mentioned by Smolin are more like toy models but I would add higher spin gravity as another idea that ...
PHY 551 - Stony Brook University
... 2. Nucleon Structure –continued § Elementary Particles, Fundamental Interactions and the Standard Model § Form factors Textbook: Wong, Chapter 2 ...
... 2. Nucleon Structure –continued § Elementary Particles, Fundamental Interactions and the Standard Model § Form factors Textbook: Wong, Chapter 2 ...