Task A - MIT CMS Tier-2 Facility
... manager of MIT Tier-2 center and is fully supported by the Tier-2 project. Finally, new members of the group have been added: Guillelmo Gomez-Ceballos, a former Fulbright Fellow with MIT at CDF from Cantabria last rejoined the group as a Research Scientist at CERN to replace Roberta Arcidiacono, who ...
... manager of MIT Tier-2 center and is fully supported by the Tier-2 project. Finally, new members of the group have been added: Guillelmo Gomez-Ceballos, a former Fulbright Fellow with MIT at CDF from Cantabria last rejoined the group as a Research Scientist at CERN to replace Roberta Arcidiacono, who ...
Exotic Goldstone Particles: Pseudo-Goldstone Boson and Goldstone
... quantum description of gravity. The fact that the ratio MP /MW (Planck scale MP ∼ 1018 GeV and the electroweak scale MW ∼ 100GeV ) is so huge is already a powerful clue to the character of physics beyond the Standard Model, because of the ”hierarchy problem” or ”naturalness problem” . The Higgs pote ...
... quantum description of gravity. The fact that the ratio MP /MW (Planck scale MP ∼ 1018 GeV and the electroweak scale MW ∼ 100GeV ) is so huge is already a powerful clue to the character of physics beyond the Standard Model, because of the ”hierarchy problem” or ”naturalness problem” . The Higgs pote ...
The `Little Bang` in the Laboratory
... We have a phase transition proton -> quarks Quark-gluon plasma lasts less than 0.00000000000000000000001 seconds It is very dense and very hot It behaves like a liquid not like a plasma New experiment at larger Collider LHC at CERN to investigate properties of the ‘Quark Soup’ Christina Ma ...
... We have a phase transition proton -> quarks Quark-gluon plasma lasts less than 0.00000000000000000000001 seconds It is very dense and very hot It behaves like a liquid not like a plasma New experiment at larger Collider LHC at CERN to investigate properties of the ‘Quark Soup’ Christina Ma ...
PHYS 569 Emergent State of Matter
... 1. Introduction to Quark Gluon Plasma (QGP) To explore the substructures of protons and neutrons, which along with electrons are the substructure of atoms, a number of precision measurements have been made since 1960s. Among those experiments, deep-inelastic electron scattering experiments at Stanf ...
... 1. Introduction to Quark Gluon Plasma (QGP) To explore the substructures of protons and neutrons, which along with electrons are the substructure of atoms, a number of precision measurements have been made since 1960s. Among those experiments, deep-inelastic electron scattering experiments at Stanf ...
Highlights from Top Physics
... colliders with top quark events • Top quark production and properties consistent with SM ...
... colliders with top quark events • Top quark production and properties consistent with SM ...
Neutrino mass and New Physics: Facts and Fancy
... electrons and 2 antineutrinos are emitted, is called double beta decay, and it is measured for some nuclei The case when only two electrons are measured is called neutrinoless double beta decay and, to date, we have only bounds on the rate of this process ...
... electrons and 2 antineutrinos are emitted, is called double beta decay, and it is measured for some nuclei The case when only two electrons are measured is called neutrinoless double beta decay and, to date, we have only bounds on the rate of this process ...
Requirements for ion sources
... itself (and its extraction system), or the ions may need further acceleration in a particle accelerator (using DC or radiofrequency (RF) electric fields). In the case that a further accelerator is needed, the energy from the source must be chosen in collaboration with the subsequent acceleration sta ...
... itself (and its extraction system), or the ions may need further acceleration in a particle accelerator (using DC or radiofrequency (RF) electric fields). In the case that a further accelerator is needed, the energy from the source must be chosen in collaboration with the subsequent acceleration sta ...
Compact dimensions
... energy scale of the experiment reaches the bulk scale (string tension)-1 (= TeV?) 2. Gravity propagates in all the 3+d spatial dimensions, including the D3 brane, of course. 3. As we approach the bulk scale, stringy excitations begin to appear, i.e. the Standard Model is no longer valid 4. Bulk sc ...
... energy scale of the experiment reaches the bulk scale (string tension)-1 (= TeV?) 2. Gravity propagates in all the 3+d spatial dimensions, including the D3 brane, of course. 3. As we approach the bulk scale, stringy excitations begin to appear, i.e. the Standard Model is no longer valid 4. Bulk sc ...
European Strategy for Particle Physics
... Discovery of “Higgs” like boson at LHC opens a new line of indirect-search: precision measurement of “Higgs” properties. Is LHC alone enough or a new facility also needed? Linear or Circular e+e colliders, Circular μ+μ collider γ-γ collider based on circular e storage rings A high energy frontier ma ...
... Discovery of “Higgs” like boson at LHC opens a new line of indirect-search: precision measurement of “Higgs” properties. Is LHC alone enough or a new facility also needed? Linear or Circular e+e colliders, Circular μ+μ collider γ-γ collider based on circular e storage rings A high energy frontier ma ...
L - Jefferson Lab
... Experiments and Hall equipment best suited to carry them out were matched in a matrix (see the following example and Appendix for all). This review concluded that a complement of equipment that will support a very large fraction of the broad range of physics research accessible with 11-12 GeV electr ...
... Experiments and Hall equipment best suited to carry them out were matched in a matrix (see the following example and Appendix for all). This review concluded that a complement of equipment that will support a very large fraction of the broad range of physics research accessible with 11-12 GeV electr ...
Neutral beam plasma heating
... fusion reactors. However, there are several problems involving both physics and technology, which must be studied before the method could be effectively used in tokamaks. One of the issues is the optimum value of the beam energy. If the beam energy is too low, it deposits most of the energy on the o ...
... fusion reactors. However, there are several problems involving both physics and technology, which must be studied before the method could be effectively used in tokamaks. One of the issues is the optimum value of the beam energy. If the beam energy is too low, it deposits most of the energy on the o ...
DOC - UF Physics - University of Florida
... particles, the LHC will collide protons at energies of 14 TeV. At the LHC, beams of protons will collide with each other at a rate of 40,000,000 collisions per second. It would be impossible to analyze the resulting data from every collision, so the CMS detector must use a trigger to filter out data ...
... particles, the LHC will collide protons at energies of 14 TeV. At the LHC, beams of protons will collide with each other at a rate of 40,000,000 collisions per second. It would be impossible to analyze the resulting data from every collision, so the CMS detector must use a trigger to filter out data ...
CMS PAS FSQ-12-005 - Laboratory of Experimental High Energy
... Hadron level: stable FS particles with pT>200 MeV, |η|<4.7. Migration matrix from PYTHIA8-MBR. Cross section limited to ΔηF<8.4 (small trigger efficiency uncertainty) Different run than for SD/DD cross sections. ...
... Hadron level: stable FS particles with pT>200 MeV, |η|<4.7. Migration matrix from PYTHIA8-MBR. Cross section limited to ΔηF<8.4 (small trigger efficiency uncertainty) Different run than for SD/DD cross sections. ...
ppt - IASA
... State of unprecedented energy density ~ 15 GeV/fm3 Opaque to colored “hard” probes, jets and heavy flavor Hard probes will be critical to study properties of QGP On tape; analysis ongoing ...
... State of unprecedented energy density ~ 15 GeV/fm3 Opaque to colored “hard” probes, jets and heavy flavor Hard probes will be critical to study properties of QGP On tape; analysis ongoing ...
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.