Strongly coupled gauge theory - CLASSE Cornell
... electric charge. The second term in ~j give a Hall-like contribution to the current which is perpendicular to the applied electric field. in the canonical normalization basis, it is L=− ...
... electric charge. The second term in ~j give a Hall-like contribution to the current which is perpendicular to the applied electric field. in the canonical normalization basis, it is L=− ...
Color Glass Condensate at RHIC
... Expectations for RdAu at large rapidity Agreement on the presence of suppression due to the quantum Small x evolution in the CGC picture: DK, E. Levin and L. McLerran, hep-ph/0210332; R. Baier, A. Kovner, U. Wiedemann, hep-ph/0305265 v2 DK, Yu.Kovchegov and K. Tuchin, hep-ph/0307037 v2 J. Albacete, ...
... Expectations for RdAu at large rapidity Agreement on the presence of suppression due to the quantum Small x evolution in the CGC picture: DK, E. Levin and L. McLerran, hep-ph/0210332; R. Baier, A. Kovner, U. Wiedemann, hep-ph/0305265 v2 DK, Yu.Kovchegov and K. Tuchin, hep-ph/0307037 v2 J. Albacete, ...
Discovering the Nucleus of the Indivisible
... Divisibility & the Structure of Matter Indivisibility implies not the lack of (sub)structure: But, why can we separate e– and p+, but not quarks? Binding energy of H-atom = 13.6 eV. Rest energy of e– = 510,999 eV. En = – ½ !e2 m c2 #e = ⅟&'( Ratio ≈ 0.000 0266 ≈ 1/37,573. ...
... Divisibility & the Structure of Matter Indivisibility implies not the lack of (sub)structure: But, why can we separate e– and p+, but not quarks? Binding energy of H-atom = 13.6 eV. Rest energy of e– = 510,999 eV. En = – ½ !e2 m c2 #e = ⅟&'( Ratio ≈ 0.000 0266 ≈ 1/37,573. ...
The Mole
... elements in a compound. – Example: CO (could be C2O2, C4O4, but not CO2) • *Empirical Formula may or may not be the molecular formula. • Examples: –Hydrogen Peroxide = H2O2 but the empirical formula is HO –Carbon dioxide = CO and it is the ...
... elements in a compound. – Example: CO (could be C2O2, C4O4, but not CO2) • *Empirical Formula may or may not be the molecular formula. • Examples: –Hydrogen Peroxide = H2O2 but the empirical formula is HO –Carbon dioxide = CO and it is the ...
Harmony of Scattering Amplitudes: From gauge theory
... means integrals are badly behaved in the UV Much more sophisticated power counting in supersymmetric theories but this is the basic idea. Reasons to focus on N = 8 maximal supergravity: Cremmer and Julia • With more susy suspect better UV properties. • High symmetry implies simplicity. Much simpler ...
... means integrals are badly behaved in the UV Much more sophisticated power counting in supersymmetric theories but this is the basic idea. Reasons to focus on N = 8 maximal supergravity: Cremmer and Julia • With more susy suspect better UV properties. • High symmetry implies simplicity. Much simpler ...
LHC sensitivity to almost all SM Higgs masses 2011-12
... PDFs are determined in Deep Inelastic ScatteringSTRONG Oxford involvement in HERAPDFBut can be used to predict cross sections for the LHC. Early LHC data, using 36pb-1, are well predicted using ...
... PDFs are determined in Deep Inelastic ScatteringSTRONG Oxford involvement in HERAPDFBut can be used to predict cross sections for the LHC. Early LHC data, using 36pb-1, are well predicted using ...
Elementary particles and the exasperating Higgs boson: the ideas
... SUSY is an extension of the Standard Model: every fermion has a bosonic counterpart (and viceversa) it’s a broken symmetry as we know that the SUSY particles don’t have the same mass as their symmetric partner Measured ...
... SUSY is an extension of the Standard Model: every fermion has a bosonic counterpart (and viceversa) it’s a broken symmetry as we know that the SUSY particles don’t have the same mass as their symmetric partner Measured ...
On Morphing Neutrinos and Why They Must Have Mass
... The idea of mixing, which might seem counterintuitive when applied to particles, has a powerful classical analog in the analysis of polarized light, whether it’s via Faraday rotation,11 the response of a linear polarizer,12 or the behavior of circular light in an ordinary birefringent material. For ...
... The idea of mixing, which might seem counterintuitive when applied to particles, has a powerful classical analog in the analysis of polarized light, whether it’s via Faraday rotation,11 the response of a linear polarizer,12 or the behavior of circular light in an ordinary birefringent material. For ...
Particle Physics
... Corresponds to rotating states in colour space about an axis whose direction is different at every space-time point interaction vertex: Predicts 8 massless gauge bosons – the gluons (one for each ...
... Corresponds to rotating states in colour space about an axis whose direction is different at every space-time point interaction vertex: Predicts 8 massless gauge bosons – the gluons (one for each ...
R-parity Violating SUSY
... H. N. Li et al. & Y. D. Yang et al. study the next to leading order corrections by PQCD & QCDF, respectively. These higher order corrections may be important for Br(B to pi K), but the can not explain other experimental data(hep-ph/0508041;PRD72,074007). ...
... H. N. Li et al. & Y. D. Yang et al. study the next to leading order corrections by PQCD & QCDF, respectively. These higher order corrections may be important for Br(B to pi K), but the can not explain other experimental data(hep-ph/0508041;PRD72,074007). ...
Notes on Elementary Particle Physics
... Particle creations may sometimes appear to violate energy conservation, but only for a limited period of time as allowed by the Heisenberg unicertainty principle: ...
... Particle creations may sometimes appear to violate energy conservation, but only for a limited period of time as allowed by the Heisenberg unicertainty principle: ...
tt~ Production at ATLAS and tt~ Monte Carlo
... calibration but good lepton ID) done by the ATLAS NIKHEF group uses the ALPGEN W+jets - where the strength of ALPGEN becomes obvious (exact MEstep forisW+4 MLMto matching The next thenjets, of course tune andof W+n jets). test our tt~ Monte-Carlo on these distributions Hadronic 3-jet mass (as well a ...
... calibration but good lepton ID) done by the ATLAS NIKHEF group uses the ALPGEN W+jets - where the strength of ALPGEN becomes obvious (exact MEstep forisW+4 MLMto matching The next thenjets, of course tune andof W+n jets). test our tt~ Monte-Carlo on these distributions Hadronic 3-jet mass (as well a ...
Proton - Common Sense Science
... infinite number of particles. ‘The valence quarks excite from the neighboring vacuum a dynamic ‘sea’ of short-lived gluons and quark-antiquark pairs….’ ‘Past experiments have shown that a major part of the proton’s momentum is carried by sea quarks and gluons….’” 5. 1990s Proposed Meson Cloud Model. ...
... infinite number of particles. ‘The valence quarks excite from the neighboring vacuum a dynamic ‘sea’ of short-lived gluons and quark-antiquark pairs….’ ‘Past experiments have shown that a major part of the proton’s momentum is carried by sea quarks and gluons….’” 5. 1990s Proposed Meson Cloud Model. ...
Theory of Neutron -Decay - Fundamental Neutron Physics at NC State
... with masses ranging from a few MeV to ∼ 172 GeV. The s,c,b,t quarks have additional flavor quantum numbers which are preserved by the strong interaction. It has three generations of leptons ...
... with masses ranging from a few MeV to ∼ 172 GeV. The s,c,b,t quarks have additional flavor quantum numbers which are preserved by the strong interaction. It has three generations of leptons ...
A search for the Higgs boson in the decay to b-quarks
... So far we described the four fermions that make up the first generation: u, d, e and νe . In special environments with high energies, there are more fermions than these four. Such an environment can be a star explosion, or a collision in an accelerator. The particles that pop up in such an environme ...
... So far we described the four fermions that make up the first generation: u, d, e and νe . In special environments with high energies, there are more fermions than these four. Such an environment can be a star explosion, or a collision in an accelerator. The particles that pop up in such an environme ...
Physics through Extra Dimensions: On Dualities, Unification, and Pair Production
... all the three gauge coupling constants are equal. At energies below this scale, the simple gauge group, which is also known as the unified group and is denoted GGU T , is broken into the product of the three individual gauge groups, which make up the group of the standard model of particle physics, ...
... all the three gauge coupling constants are equal. At energies below this scale, the simple gauge group, which is also known as the unified group and is denoted GGU T , is broken into the product of the three individual gauge groups, which make up the group of the standard model of particle physics, ...
on the terms mass and weight
... molecular masses. It is defined to be one-twelfth of the mass of an unbound atom of 12C at rest and in its ground state. The unit is convenient because one hydrogen atom has a mass of approximately 1 u, and more generally an atom or molecule that contains Np protons and Nn neutrons will have a mass ...
... molecular masses. It is defined to be one-twelfth of the mass of an unbound atom of 12C at rest and in its ground state. The unit is convenient because one hydrogen atom has a mass of approximately 1 u, and more generally an atom or molecule that contains Np protons and Nn neutrons will have a mass ...
Fermi and the Theory of Weak Interactions
... operators whose main property is that they can either create or annihilate particles. In this case, A can create or annihilate a photon, thus explaining the emission or absorption of a photon. Further the current JE also is composed of ¯eld operators, but ¯eld operators of the charged particles like ...
... operators whose main property is that they can either create or annihilate particles. In this case, A can create or annihilate a photon, thus explaining the emission or absorption of a photon. Further the current JE also is composed of ¯eld operators, but ¯eld operators of the charged particles like ...
Weakton Model of Elementary Particles and Decay Mechanisms
... WEAKTON MODEL OF ELEMENTARY PARTICLES AND DECAY MECHANISMS TIAN MA AND SHOUHONG WANG Abstract. Sub-atomic decays and electron radiations indicate that there must be interior structures for charged leptons, quarks and mediators. The main objectives of this article are 1) to propose a sub-leptons and ...
... WEAKTON MODEL OF ELEMENTARY PARTICLES AND DECAY MECHANISMS TIAN MA AND SHOUHONG WANG Abstract. Sub-atomic decays and electron radiations indicate that there must be interior structures for charged leptons, quarks and mediators. The main objectives of this article are 1) to propose a sub-leptons and ...
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.