Beyond the Standard Model - Southampton High Energy Physics
... matter in the universe is invisible invisible Dark Matter LSP ? LKP ? LTP ? We will look for it We shall look for with the LHC them with the LHC Relics leaving thermal equilibrium in early Universe provide cold dark matter if mass ~ (2.7 K Mplanck)1/2 ~ TeV ...
... matter in the universe is invisible invisible Dark Matter LSP ? LKP ? LTP ? We will look for it We shall look for with the LHC them with the LHC Relics leaving thermal equilibrium in early Universe provide cold dark matter if mass ~ (2.7 K Mplanck)1/2 ~ TeV ...
2009S-FindingHiggs
... •Conservation of energy => invariant mass of two decay particles equals mass of mother particle •Check that the invariant mass of opposite sign leptons is not around Mγ or MZ Mother particle ...
... •Conservation of energy => invariant mass of two decay particles equals mass of mother particle •Check that the invariant mass of opposite sign leptons is not around Mγ or MZ Mother particle ...
Slides - Indico
... • String theory predicts the existence of gravitons and their well-defined interactions: a graviton is a closed string in a very particular low-energy vibrational state. • As closed strings without endpoints, they would not be bound to branes and could move freely between them: if we live on a brane ...
... • String theory predicts the existence of gravitons and their well-defined interactions: a graviton is a closed string in a very particular low-energy vibrational state. • As closed strings without endpoints, they would not be bound to branes and could move freely between them: if we live on a brane ...
Phenomenological study of scalar and pseudo
... Constrained the fit but need an huge amount of cpu-time It’s necessary to find realistical new physics parameters ...
... Constrained the fit but need an huge amount of cpu-time It’s necessary to find realistical new physics parameters ...
g - Experimental High Energy Physics
... are the energy calibrations as well understood as we think? is this just a statistical fluctuation after all? Time (and additional investigation) will tell ...
... are the energy calibrations as well understood as we think? is this just a statistical fluctuation after all? Time (and additional investigation) will tell ...
Flipped SU(5) - cosmology - Arizona State University
... • The scale of the Higgs VEVs is known however, from the Fermi coupling (or alternatively the electroweak gauge couplings at MZ and the Z mass itself) • We solve for the Higgs mixing term m, which is not fixed at the high scale. • We solve for the bilinear soft term B, and enforce compatibility with ...
... • The scale of the Higgs VEVs is known however, from the Fermi coupling (or alternatively the electroweak gauge couplings at MZ and the Z mass itself) • We solve for the Higgs mixing term m, which is not fixed at the high scale. • We solve for the bilinear soft term B, and enforce compatibility with ...
200 GeV
... at future particle accelerators HIGH ENERGY direct discovery of new phenomena i.e. accelerators operating at the energy scale of the new particle HIGH PRECISION interference of new physics at high energies through the precision measurement of phenomena at lower scales Both strategies have worked wel ...
... at future particle accelerators HIGH ENERGY direct discovery of new phenomena i.e. accelerators operating at the energy scale of the new particle HIGH PRECISION interference of new physics at high energies through the precision measurement of phenomena at lower scales Both strategies have worked wel ...
Higgs - Transcript - the Cassiopeia Project
... But Quantum Mechanics rejects the notion of continuous. And so… fields became distributions of tiny field particles. And the strength of the field at any given point was nothing but the density or quantity of field particles at that point. These particles are called virtual particles, because they v ...
... But Quantum Mechanics rejects the notion of continuous. And so… fields became distributions of tiny field particles. And the strength of the field at any given point was nothing but the density or quantity of field particles at that point. These particles are called virtual particles, because they v ...
Muon Lifetime
... Fermi created a theory of beta decay [weak interactions] in 1933 after Pauli’s neutrino hypothesis was publicly presented. It was modified in the later 1950s to include parity violation and works quite well at low energies. It assumes that weak interactions happen at 4 fermion vertex with an interac ...
... Fermi created a theory of beta decay [weak interactions] in 1933 after Pauli’s neutrino hypothesis was publicly presented. It was modified in the later 1950s to include parity violation and works quite well at low energies. It assumes that weak interactions happen at 4 fermion vertex with an interac ...
File - AMS02 BOLOGNA
... EW: Only a small window of parameter space in extensions of the EW theory in which baryogenesis is viable; severe upper bound on lightest Higgs boson mass, mh < 120 GeV, stop mass close to experimental bound and < top quark mass (Light Higgs and Stop Scenario): truly disadvantaged by LHC measurement ...
... EW: Only a small window of parameter space in extensions of the EW theory in which baryogenesis is viable; severe upper bound on lightest Higgs boson mass, mh < 120 GeV, stop mass close to experimental bound and < top quark mass (Light Higgs and Stop Scenario): truly disadvantaged by LHC measurement ...
a S
... Cross-sections, flux and luminosity, accelerators Particle lifetime, decay length, width ...
... Cross-sections, flux and luminosity, accelerators Particle lifetime, decay length, width ...
Modern Physics
... e.g. Average A Level score is same for females as for males. Not an exact symmetry. ...
... e.g. Average A Level score is same for females as for males. Not an exact symmetry. ...
The Standard Model and Beyond
... Remaining piece of the SM - the Higgs boson - is about to be tested at the Large Hadron Collider at CERN ...
... Remaining piece of the SM - the Higgs boson - is about to be tested at the Large Hadron Collider at CERN ...
Higgs - mechanism
... cosmon field : α(φ) in standard model: couplings depend on value of Higgs scalar field ...
... cosmon field : α(φ) in standard model: couplings depend on value of Higgs scalar field ...
16 Sep 2012
... those that interact weakly have a small mass, and those that don't interact have no mass and move at lightspeed. If the Higgs had turned out (as was possible) not to exist, fundamental physics would have been turned into a messy can of worms. This would have been interesting, but embarrassing for ph ...
... those that interact weakly have a small mass, and those that don't interact have no mass and move at lightspeed. If the Higgs had turned out (as was possible) not to exist, fundamental physics would have been turned into a messy can of worms. This would have been interesting, but embarrassing for ph ...
asu-higgs-temp1 - Experimental Elementary Particle Physics
... from these simple building blocks. As far as we know, there are no smaller units than quarks and leptons. ...
... from these simple building blocks. As far as we know, there are no smaller units than quarks and leptons. ...
Document
... (i) Cosmology: Dark matter. 22% of universe's energy budget in the form of "dark matter". Current evidence suggests that WIMPs: electrically neutral and weakly interacting massive particles with masses 1 10 TeV may be responsible ( LHC energies) (ii) Forces: unification and gravity Is there hope f ...
... (i) Cosmology: Dark matter. 22% of universe's energy budget in the form of "dark matter". Current evidence suggests that WIMPs: electrically neutral and weakly interacting massive particles with masses 1 10 TeV may be responsible ( LHC energies) (ii) Forces: unification and gravity Is there hope f ...
Recreating_the_beginning_of_the_Universe_at_the_LHC
... 3) Why is there no more antimatter? • Everything we see in the Universe is made of matter. • Antimatter has opposite electric charge, but identical in every other way. • At the birth of the Universe, more matter than antimatter was produced in the Big Bang. ...
... 3) Why is there no more antimatter? • Everything we see in the Universe is made of matter. • Antimatter has opposite electric charge, but identical in every other way. • At the birth of the Universe, more matter than antimatter was produced in the Big Bang. ...
Departament de Física Grup de Física Teòrica processes beyond the Standard Model
... block of its theoretical structure, i.e. the top quark, t [5, 6], its success describing particle physics phenomenology has been overwhelming. At a purely theoretical level the top quark existence prediction {on the grounds of requiring gauge invariance and renormalizability { since the very con rma ...
... block of its theoretical structure, i.e. the top quark, t [5, 6], its success describing particle physics phenomenology has been overwhelming. At a purely theoretical level the top quark existence prediction {on the grounds of requiring gauge invariance and renormalizability { since the very con rma ...
Higgs_1 - StealthSkater
... The third fundamental force is called the strong nuclear force. It binds 3 quarks together to from the proton and the neutron. It is also responsible for causing protons and neutrons to stick to one another in a nucleus. One of the key ideas in physics is that the basic particle forces are generated ...
... The third fundamental force is called the strong nuclear force. It binds 3 quarks together to from the proton and the neutron. It is also responsible for causing protons and neutrons to stick to one another in a nucleus. One of the key ideas in physics is that the basic particle forces are generated ...
HillCTEQ2
... Testable in the Weak Interactions? Weyl Gravity in D=4 is QCD-like: Is the Higgs technically natural? On naturalness in the standard model. ...
... Testable in the Weak Interactions? Weyl Gravity in D=4 is QCD-like: Is the Higgs technically natural? On naturalness in the standard model. ...
Minimal Supersymmetric Standard Model
The Minimal Supersymmetric Standard Model (MSSM) is an extension to the Standard Model that realizes supersymmetry. MSSM is the minimal supersymmetrical model as it considers only ""the [minimum] number of new particle states and new interactions consistent with phenomenology"". Supersymmetry pairs bosons with fermions; therefore every Standard Model particle has a partner that has yet to be discovered. If the superparticles are found, it may be analogous to discovering dark matter and depending on the details of what might be found, it could provide evidence for grand unification and might even, in principle, provide hints as to whether string theory describes nature. The failure to find evidence for supersymmetry using the Large Hadron Collider since 2010 has led to suggestions that the theory should be abandoned.