Particle Physics
... importance for life on Earth. Without it, the Sun wouldn’t be shining. As you know, the Sun shines because of nuclear fusion—light nuclei combine into heavier nuclei, while releasing energy in the process. The simplest fusion process is two protons combining into a helium nucleus. However, there is ...
... importance for life on Earth. Without it, the Sun wouldn’t be shining. As you know, the Sun shines because of nuclear fusion—light nuclei combine into heavier nuclei, while releasing energy in the process. The simplest fusion process is two protons combining into a helium nucleus. However, there is ...
Momentum, Impulse, and Collisons 2
... horizontal, frictionless surface. A light spring is compressed between them. A cord initially holding the blocks together is burned; after this, the block of mass 1.5 kg moves to the right with a speed of 2.0 m/s. a) What is the speed and direction of the other block? b) What was the original elasti ...
... horizontal, frictionless surface. A light spring is compressed between them. A cord initially holding the blocks together is burned; after this, the block of mass 1.5 kg moves to the right with a speed of 2.0 m/s. a) What is the speed and direction of the other block? b) What was the original elasti ...
Slides - Agenda INFN
... Summary and future work Distance the CHI from the CCUBE surface allows to reduce the effect of worsening of backscattered particles on the charge measurement. However with current configuration, charge assessment is critical for proton above hundreds of TeV. Possible improvements With current con ...
... Summary and future work Distance the CHI from the CCUBE surface allows to reduce the effect of worsening of backscattered particles on the charge measurement. However with current configuration, charge assessment is critical for proton above hundreds of TeV. Possible improvements With current con ...
Phenomenological study of scalar and pseudo
... Discovery of the Higgs boson at the LHC in 2012 However the SM ignore many physical observed phenomena The gravitational interaction Matter-antimatter asymmetry No dark matter Neutrinos mass And suffer from theoretical problem in the Higgs sector Introduce an ad hoc potential in the theory The fine- ...
... Discovery of the Higgs boson at the LHC in 2012 However the SM ignore many physical observed phenomena The gravitational interaction Matter-antimatter asymmetry No dark matter Neutrinos mass And suffer from theoretical problem in the Higgs sector Introduce an ad hoc potential in the theory The fine- ...
Nuclear Forces and Quarks
... Unit: Nuclear Chemistry Knowledge/Understanding Goals: fundamental forces quarks how the processes of β− and β+ decay happen ...
... Unit: Nuclear Chemistry Knowledge/Understanding Goals: fundamental forces quarks how the processes of β− and β+ decay happen ...
Fundamental Physics - Physics Seminar
... Uglyness of old models • The Standard Model has many free parameters: O(30) • Naturalness problems. Finetuning. Examples: Higgs mass, θ-angle (strong CP-problem) • Gravity separate, i.e. not unified. • (Probably) Breaks down at a finite energy scale Landau poles etc. ...
... Uglyness of old models • The Standard Model has many free parameters: O(30) • Naturalness problems. Finetuning. Examples: Higgs mass, θ-angle (strong CP-problem) • Gravity separate, i.e. not unified. • (Probably) Breaks down at a finite energy scale Landau poles etc. ...
![arXiv:1501.01596v1 [cond-mat.mtrl-sci] 3 Jan 2015](http://s1.studyres.com/store/data/008057215_1-2593210d98eafff454da21c3b7b4536e-300x300.png)
Laura Covi Institute for Theoretical Physics Georg-August
... The inclusion of direct detection data in the analysis can lift degeneracies and single out the right solution... In such analysis it can also be checked if the DM is a thermal relic or if other production mechanisms must be at work. ...
... The inclusion of direct detection data in the analysis can lift degeneracies and single out the right solution... In such analysis it can also be checked if the DM is a thermal relic or if other production mechanisms must be at work. ...
Potential Energy - McMaster University
... Momentum is conserved in collisions. Kinetic energy is sometimes conserved; it depends on the nature of the interaction force. A collision is called elastic if the total kinetic energy is the same before and after the collision. If the interaction force is conservative, a collision between particles ...
... Momentum is conserved in collisions. Kinetic energy is sometimes conserved; it depends on the nature of the interaction force. A collision is called elastic if the total kinetic energy is the same before and after the collision. If the interaction force is conservative, a collision between particles ...
triumph, window, clue, and inspiration
... The search for appropriate metaphors has occupied science writers and journalists, and yours truly, for some time. Early on I suggested cosmic molasses, which became inordinately popular. My motivation was primarily poetic: I wanted to used the title “Cosmic Molasses for Particle Masses’’ for a piec ...
... The search for appropriate metaphors has occupied science writers and journalists, and yours truly, for some time. Early on I suggested cosmic molasses, which became inordinately popular. My motivation was primarily poetic: I wanted to used the title “Cosmic Molasses for Particle Masses’’ for a piec ...
212 Particle Physics Lecture 1 - X-ray and Observational Astronomy
... An elementary particle is a point particle without structure that is not constructed from more elementary entities With the advent of particle accelerator in the 1950’s many new elementary particles were discovered. The question arose whether perhaps there were too many to all be elementary. ...
... An elementary particle is a point particle without structure that is not constructed from more elementary entities With the advent of particle accelerator in the 1950’s many new elementary particles were discovered. The question arose whether perhaps there were too many to all be elementary. ...
CLIC Machine-Detector Working Group
... recalibration after a move. Ability to service the various superconducting elements of the particle detector during and after a move. ...
... recalibration after a move. Ability to service the various superconducting elements of the particle detector during and after a move. ...
shp_09 - Nevis Laboratories
... dependences suggest that they approach (sort of!) a common value near 1016 GeV. This is an insanely high energy! The Standard Model provides no explanation for what may happen beyond this unification scale, nor why the forces have such different strengths at low energies. ...
... dependences suggest that they approach (sort of!) a common value near 1016 GeV. This is an insanely high energy! The Standard Model provides no explanation for what may happen beyond this unification scale, nor why the forces have such different strengths at low energies. ...
Large Hadron Collider
The Large Hadron Collider (LHC) is the world's largest and most powerful particle collider, the largest, most complex experimental facility ever built, and the largest single machine in the world. It was built by the European Organization for Nuclear Research (CERN) between 1998 and 2008 in collaboration with over 10,000 scientists and engineers from over 100 countries, as well as hundreds of universities and laboratories. It lies in a tunnel 27 kilometres (17 mi) in circumference, as deep as 175 metres (574 ft) beneath the France–Switzerland border near Geneva, Switzerland. Its first research run took place from 30 March 2010 to 13 February 2013 at an initial energy of 3.5 teraelectronvolts (TeV) per beam (7 TeV total), almost 4 times more than the previous world record for a collider, rising to 4 TeV per beam (8 TeV total) from 2012. On 13 February 2013 the LHC's first run officially ended, and it was shut down for planned upgrades. 'Test' collisions restarted in the upgraded collider on 5 April 2015, reaching 6.5 TeV per beam on 20 May 2015 (13 TeV total, the current world record for particle collisions). Its second research run commenced on schedule, on 3 June 2015.The LHC's aim is to allow physicists to test the predictions of different theories of particle physics, high-energy physics and in particular, to prove or disprove the existence of the theorized Higgs boson and the large family of new particles predicted by supersymmetric theories, and other unsolved questions of physics, advancing human understanding of physical laws. It contains seven detectors, each designed for certain kinds of research. The proton-proton collision is the primary operation method, but the LHC has also collided protons with lead nuclei for two months in 2013 and used lead–lead collisions for about one month each in 2010, 2011, and 2013 for other investigations. The LHC's computing grid was (and currently is) a world record holder. Data from collisions was anticipated to be produced at an unprecedented rate for the time, of tens of petabytes per year, a major challenge at the time, to be analysed by a grid-based computer network infrastructure connecting 140 computing centers in 35 countries – by 2012 the Worldwide LHC Computing Grid was also the world's largest distributed computing grid, comprising over 170 computing facilities in a worldwide network across 36 countries.