A unique theory of all forces 1 The Standard Model and Unification
... From what we have seen up to now one may suspect that the equivalence between totally different theories may only be a two-dimensional phenomenon. This is actually not true because there is by now a overwhelming evidence [6] that this also happens in the case of the four-dimensional supersymmetric Y ...
... From what we have seen up to now one may suspect that the equivalence between totally different theories may only be a two-dimensional phenomenon. This is actually not true because there is by now a overwhelming evidence [6] that this also happens in the case of the four-dimensional supersymmetric Y ...
On-Shell Methods in Quantum Field Theory
... events have high multiplicity of hard clusters (jets) each jet has a high multiplicity of hadrons higher-order perturbative corrections are important ...
... events have high multiplicity of hard clusters (jets) each jet has a high multiplicity of hadrons higher-order perturbative corrections are important ...
Document
... • Real-time Wilson fermions on a (643) lattice in d = 3 + 1 for the first time! • Very good agreement with NLO quantum result (2PI) for 1 (differences at larger p depend on Wilson term larger lattices) • Lattice simulation can be applied to ~ 1 relevant for QCD ...
... • Real-time Wilson fermions on a (643) lattice in d = 3 + 1 for the first time! • Very good agreement with NLO quantum result (2PI) for 1 (differences at larger p depend on Wilson term larger lattices) • Lattice simulation can be applied to ~ 1 relevant for QCD ...
Particle Physics
... (A) Mesons are bosons, baryons are fermions (B) Mesons are fermions, baryons are bosons (C) Mesons are fermions, baryons are fermions (D) Mesons are bosons, baryons are bosons ...
... (A) Mesons are bosons, baryons are fermions (B) Mesons are fermions, baryons are bosons (C) Mesons are fermions, baryons are fermions (D) Mesons are bosons, baryons are bosons ...
GCOE13_5
... In order to change the shape of the function λ(Λ) , we introduce an extra scalar field that can be identified with dark matter: ...
... In order to change the shape of the function λ(Λ) , we introduce an extra scalar field that can be identified with dark matter: ...
Poster-Okubo - Department of Physics and Astronomy
... 1999 Edward H. Thorndike (University of Rochester) "For a leading role in milestone advances in the study of the b quark with the CLEO collaboration; particularly the discovery and measurement of b semileptonic decay, the b to s Penguin decay process, and the b to u weak transition. In addition, his ...
... 1999 Edward H. Thorndike (University of Rochester) "For a leading role in milestone advances in the study of the b quark with the CLEO collaboration; particularly the discovery and measurement of b semileptonic decay, the b to s Penguin decay process, and the b to u weak transition. In addition, his ...
(pdf)
... structure. Firstly, it has the group structure. Secondly, the elements of this group also form a “topological space” so that it may be described as being a special case of a “topological group”. Finally, the elements also constitute an “analytic manifold”. Consequently, a Lie group may be defined in ...
... structure. Firstly, it has the group structure. Secondly, the elements of this group also form a “topological space” so that it may be described as being a special case of a “topological group”. Finally, the elements also constitute an “analytic manifold”. Consequently, a Lie group may be defined in ...
An Integration of General Relativity and Relativistic Quantum
... One might begin with a static environment where particles are in a large gravitational field such as near a black hole or neutron star. Here we can compute the metric as the Schwarzschild solution. Having the metric then we can use the representation of P in the position representation as:
... One might begin with a static environment where particles are in a large gravitational field such as near a black hole or neutron star. Here we can compute the metric as the Schwarzschild solution. Having the metric then we can use the representation of P in the position representation as:
Scalars 2011
... We speculate gravity departs from general relativity at ultralarge distance scales. Quantum gravity and string theory ...
... We speculate gravity departs from general relativity at ultralarge distance scales. Quantum gravity and string theory ...
universality
... substantial theoretical progress needed “phenomenology” has to identify quantities that are accessible to precision both for experiment and theory dedicated experimental effort needed ...
... substantial theoretical progress needed “phenomenology” has to identify quantities that are accessible to precision both for experiment and theory dedicated experimental effort needed ...
Pair production processes and flavor in gauge
... beyond two-point level. This is a rather generic feature of the FMS mechanism: If there is no elementary state with the corresponding quantum numbers, no identification with an elementary particle can be performed. However, correspondence can be here seen in a very broad sense [10, 11, 13], as the t ...
... beyond two-point level. This is a rather generic feature of the FMS mechanism: If there is no elementary state with the corresponding quantum numbers, no identification with an elementary particle can be performed. However, correspondence can be here seen in a very broad sense [10, 11, 13], as the t ...
Spin-liquids
... Other models with topologically ordered spin liquid phases (a partial list) • Quantum dimer models • Rotor boson models ...
... Other models with topologically ordered spin liquid phases (a partial list) • Quantum dimer models • Rotor boson models ...
view as pdf - KITP Online
... • Very good agreement with NLO quantum result (2PI) for 1 (differences at larger p depend on Wilson term larger lattices) • Lattice simulation can be applied to strongly correlated regime ~ 1 ! ...
... • Very good agreement with NLO quantum result (2PI) for 1 (differences at larger p depend on Wilson term larger lattices) • Lattice simulation can be applied to strongly correlated regime ~ 1 ! ...
gauge theory - CERN Indico
... • Further work on the detailed application of the mechanism to nonabelian theories (TK, 1967). This work helped, I believe, to renew Salam’s interest. • Unified model of weak and electromagnetic interactions of leptons proposed by Weinberg (1967) — essentially the same model was presented independen ...
... • Further work on the detailed application of the mechanism to nonabelian theories (TK, 1967). This work helped, I believe, to renew Salam’s interest. • Unified model of weak and electromagnetic interactions of leptons proposed by Weinberg (1967) — essentially the same model was presented independen ...
Higgs_1 - StealthSkater
... Switzerland and France. Scientists there think that they have discovered the Higgs field -- also nicknamed the "God particle" by Nobel laureate Leon Lederman who wrote a book with that title. If the result is verified, the Higgs will have a mass about 125 times the mass of the proton, making it as h ...
... Switzerland and France. Scientists there think that they have discovered the Higgs field -- also nicknamed the "God particle" by Nobel laureate Leon Lederman who wrote a book with that title. If the result is verified, the Higgs will have a mass about 125 times the mass of the proton, making it as h ...
by Margaret L. Silbar
... sense as nature's basic building blocks. For example, superstring theory is not yet based on a geometrical principle. As Green says, 'This is not very satisfying for a theory which includes gravity." The accepted classical theory of gravity, Einstein's 70-year-old general theory of relativity, descr ...
... sense as nature's basic building blocks. For example, superstring theory is not yet based on a geometrical principle. As Green says, 'This is not very satisfying for a theory which includes gravity." The accepted classical theory of gravity, Einstein's 70-year-old general theory of relativity, descr ...
All forces arise from the interactions between different objects
... gravitational force, there exists a duality between strong and weak coupling. A coupling constant describes how strong an interaction is. A larger coupling constant means a stronger force; hence, the coupling constant is of the order of 10 -41 and it is derived from the masses of the proton and elec ...
... gravitational force, there exists a duality between strong and weak coupling. A coupling constant describes how strong an interaction is. A larger coupling constant means a stronger force; hence, the coupling constant is of the order of 10 -41 and it is derived from the masses of the proton and elec ...
Some beautiful equations of mathematical physics
... they give.”. And finally there is the famous statement: “It is more important for our equations to be beautiful than to have them fit experiment.” This last statement is more extreme than I can accept. Nevertheless, as theoretical physicists we have been privileged to encounter in our education and ...
... they give.”. And finally there is the famous statement: “It is more important for our equations to be beautiful than to have them fit experiment.” This last statement is more extreme than I can accept. Nevertheless, as theoretical physicists we have been privileged to encounter in our education and ...
comunicato_stampa_cern
... presence of the boson. Refined analyses and additional data delivered in 2012 by this magnificent machine will definitely give an answer.” Over the coming months, both experiments will be further refining their analyses in time for the winter particle physics conferences in March. However, a definit ...
... presence of the boson. Refined analyses and additional data delivered in 2012 by this magnificent machine will definitely give an answer.” Over the coming months, both experiments will be further refining their analyses in time for the winter particle physics conferences in March. However, a definit ...
Physics and the Integers - damtp
... domain in, say, the real numbers, but instead over a domain of functions. Mathematicians have long struggled to make sense of the path integral in all but simplest cases. The infinities that arise in performing functional integrations are beyond the limits of rigorous analysis. Of course, that hasn ...
... domain in, say, the real numbers, but instead over a domain of functions. Mathematicians have long struggled to make sense of the path integral in all but simplest cases. The infinities that arise in performing functional integrations are beyond the limits of rigorous analysis. Of course, that hasn ...
High Energy Physics Summer School, Svit, Slovakia 3
... ideal arrival time: between 17:00 and 18:00 (from 5 to 6pm), other times are OK ...
... ideal arrival time: between 17:00 and 18:00 (from 5 to 6pm), other times are OK ...
Slides
... To understand the dark matter part, it is the most nontrivial. I think some generalized Standard Model would do the job. ...
... To understand the dark matter part, it is the most nontrivial. I think some generalized Standard Model would do the job. ...
In order to integrate general relativity with quantum
... These simultaneous eigenvalues represent a maximal set of commuting observables for the Lorentz, Poincare, and EP Lie algebras that can be used to index creation and annihilation operators representing particles (fields) with the quantum numbers described. The fundamental entities must be in the rep ...
... These simultaneous eigenvalues represent a maximal set of commuting observables for the Lorentz, Poincare, and EP Lie algebras that can be used to index creation and annihilation operators representing particles (fields) with the quantum numbers described. The fundamental entities must be in the rep ...
AlumniDay_IOP_2 - Princeton University
... – Then : Pre-eminence of particle physics meant consensus that physics is about finding the laws of Nature. Clear value hierarchy. – Now : Decline (relative) of particle physics has eroded goals/mission consensus – This “Fall of Berlin Wall” has led to squabbles between subdisciplines, between big & ...
... – Then : Pre-eminence of particle physics meant consensus that physics is about finding the laws of Nature. Clear value hierarchy. – Now : Decline (relative) of particle physics has eroded goals/mission consensus – This “Fall of Berlin Wall” has led to squabbles between subdisciplines, between big & ...
An Exceptionally Simple Theory of Everything
""An Exceptionally Simple Theory of Everything"" is a physics preprint proposing a basis for a unified field theory, very often referred to as ""E8 Theory"", which attempts to describe all known fundamental interactions in physics and to stand as a possible theory of everything. The paper was posted to the physics arXiv by Antony Garrett Lisi on November 6, 2007, and was not submitted to a peer-reviewed scientific journal. The title is a pun on the algebra used, the Lie algebra of the largest ""simple"", ""exceptional"" Lie group, E8. The paper's goal is to describe how the combined structure and dynamics of all gravitational and Standard Model particle fields, including fermions, are part of the E8 Lie algebra. In the paper, Lisi states that all three generations of fermions do not directly embed in E8 with correct quantum numbers and spins, but that they might be described via a triality transformation, noting that the theory is incomplete and that a correct description of the relationship between triality and generations, if it exists, awaits a better understanding.The theory received accolades from a few physicists amid a flurry of media coverage, but also met with widespread skepticism. Scientific American reported in March 2008 that the theory was being ""largely but not entirely ignored"" by the mainstream physics community, with a few physicists picking up the work to develop it further.In a follow-up paper, Lee Smolin proposed a spontaneous symmetry breaking mechanism for obtaining the classical action in Lisi's model, and speculated on the path to its quantization.In July 2009, Jacques Distler and Skip Garibaldi published a critical paper in Communications in Mathematical Physics called ""There is no 'Theory of Everything' inside E8"", arguing that Lisi's theory, and a large class of related models, cannot work. They offer a direct proof that it is impossible to embed all three generations of fermions in E8, or to obtain even the one-generation Standard Model without the presence of an antigeneration. In response to Distler and Garibaldi's paper, Lisi argued, in a new paper ""An Explicit Embedding of Gravity and the Standard Model in E8"", peer reviewed and published in a conference proceedings, that some assumptions about fermion embeddings are unnecessary and that the antigeneration is not by itself a problem sufficient to rule out the one-generation Standard Model. In December 2010 and May 2011, Lisi wrote in the popular magazine Scientific American a feature article on the E8 Theory of Everything and an entry in the blog section of the magazine addressing some of the criticism of his theory and how it has progressed, noting that the theory is still incomplete and makes only tenuous predictions, with the three generation issue remaining as a significant problem.