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Riccardo Rattazzi
Riccardo Rattazzi (born 1964) is an Italian theoretical physicist and a professor at the École Polytechnique Fédérale de Lausanne. His main research interests are in physics beyond the Standard Model and in cosmology. Career Riccardo Rattazzi studied physics at the Scuola Normale Superiore di Pisa and at the University of Pisa, where he received the Laurea cum laude in 1987. He carried out graduate research at the Scuola Normale Superiore di Pisa under the guidance of Riccardo Barbieri. He held postdoctoral positions at the University of California, Berkeley (1992-1993), at the Rutgers University (1993-1996), and at CERN (1996-1998). In 1998 he became a permanent researcher at the Instituto Nazionale di Fisica Nucleare in Pisa. From 2001 to 2006 he was a junior staff member of ththeoretical physics departmentat CERN. Since 2006 he holds a professorship of physics at the École Polytechnique Fédérale de Lausanne. Main scientific discoveries In 1998, together with Gian Giu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Novara
Novara (, Novarese: ) is the capital city of the province of Novara in the Piedmont region in northwest Italy, to the west of Milan. With 101,916 inhabitants (on 1 January 2021), it is the second most populous city in Piedmont after Turin. It is an important crossroads for commercial traffic along the routes from Milan to Turin and from Genoa to Switzerland. Novara lies between the rivers Agogna and Terdoppio in northeastern Piedmont, from Milan and from Turin. History Novara was founded around 89 BC by the Romans, when the local Gauls obtained the Roman citizenship. Its name is formed from ''Nov'', meaning "new", and ''Aria'', the name the Cisalpine Gauls used for the surrounding region. Ancient ''Novaria'', which dates to the time of the Ligures and the Celts, was a municipium and was situated on the road from Vercellae (Vercelli) to (Mediolanum) Milan. Its position on perpendicular roads (still intact today) dates to the time of the Romans. After the city was destroyed in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rutgers University
Rutgers University (; RU), officially Rutgers, The State University of New Jersey, is a Public university, public land-grant research university consisting of four campuses in New Jersey. Chartered in 1766, Rutgers was originally called Queen's College, and was affiliated with the Reformed Church in America, Dutch Reformed Church. It is the eighth-oldest college in the United States, the second-oldest in New Jersey (after Princeton University), and one of the nine U.S. colonial colleges that were chartered before the American Revolution.Stoeckel, Althea"Presidents, professors, and politics: the colonial colleges and the American revolution", ''Conspectus of History'' (1976) 1(3):45–56. In 1825, Queen's College was renamed Rutgers College in honor of Colonel Henry Rutgers, whose substantial gift to the school had stabilized its finances during a period of uncertainty. For most of its existence, Rutgers was a Private university, private liberal arts college but it has evolved int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dimensional Transmutation
In particle physics, dimensional transmutation is a physical mechanism providing a linkage between a dimensionless parameter and a dimensionful parameter. In classical field theory, such as gauge theory in four-dimensional spacetime, the coupling constant is a dimensionless constant. However, upon quantization, logarithmic divergences in one-loop diagrams of perturbation theory imply that this "constant" actually depends on the typical energy scale of the processes under considerations, called the renormalization group (RG) scale. This "running" of the coupling is specified by the beta-function of the renormalization group. Consequently, the interaction may be characterised by a dimensionful parameter , namely the value of the RG scale at which the coupling constant diverges. In the case of quantum chromodynamics, this energy scale is called the QCD scale, and its value 220 MeV supplants the role of the original dimensionless coupling constant in the form of the logarithm (a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alberto Zaffaroni
Alberto is the Romance version of the Latinized form (''Albertus'') of Germanic ''Albert''. It is used in Italian, Portuguese and Spanish. The diminutive forms are ''Albertito'' in Spain or ''Albertico'' in some parts of Latin America, Albertino in Italian as well as ''Tuco'' as a hypocorism. It derives from the name Adalberto which in turn derives from '' Athala'' (meaning noble) and ''Berth'' (meaning bright). People * Alberto Aguilar Leiva (born 1984), Spanish footballer * Alberto Airola (born 1970), Italian politician * Alberto Ascari (1918–1955), Italian racing driver * Alberto Baldonado (born 1993), Panamanian baseball player * Alberto Bello (1897–1963), Argentine actor * Alberto Beneduce (1877–1944), Italian scientist and economist * Alberto Bustani Adem (born 1954), Mexican engineer * Alberto Callaspo (born 1983,) baseball player * Alberto Campbell-Staines (born 1993), Australian athlete with an intellectual disability * Alberto Cavalcanti (1897–1982), Brazili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Large Extra Dimension
In particle physics and string theory (M-theory), the ADD model, also known as the model with large extra dimensions (LED), is a model framework that attempts to solve the hierarchy problem. (''Why is the force of gravity so weak compared to the electromagnetic force and the other fundamental forces?'') The model tries to explain this problem by postulating that our universe, with its four dimensions (three spatial ones plus time), exists on a membrane in a higher dimensional space. It is then suggested that the other forces of nature (the electromagnetic force, strong interaction, and weak interaction) operate within this membrane and its four dimensions, while the hypotethical gravity-bearing particle graviton can propagate across the extra dimensions. This would explain why gravity is very weak compared to the other fundamental forces. The size of the dimensions in ADD is around the order of the TeV scale, which results in it being experimentally probeable by current colliders, u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Wells (physicist)
James Wells may refer to: * James B. Wells Jr. (1850–1923), American judge and Democratic politician * James D. Wells (politician) (1928–2010), American politician from Iowa * James D. Wells (physicist), American physicist * James L. Wells (1843–1928), American businessman and politician * James Lesesne Wells (1902–1993), African-American graphic artist and painter * James M. Wells III (born c. 1948), American businessman * James Madison Wells (1808–1899), governor of Louisiana * James Monroe Wells (1837–1918), American author, soldier, and politician * James Murray Wells (born 1983), English entrepreneur * James Pearson Wells (1822–1896), Ontario farmer and political figure * James Wells (British politician), British politician and MEP * James Wells (cricketer) James Wells (1758 – 1807) was an English cricketer. Wells was the brother of cricketer John Wells. Wells made his first-class debut for a team representing Hampshire against an early England team. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gian Giudice
Gian Francesco Giudice (born January 25, 1961) is an Italian theoretical physicist working at CERN in particle physics and cosmology. Academic career After graduating in physics from the University of Padua in 1984, Giudice obtained in 1988 his PhD in theoretical physics from the International School for Advanced Studies in Trieste. Between 1988 and 1990 he was Research Associate at the Fermi National Accelerator Laboratory near Chicago. Between 1990 and 1992 he was Research Fellow in the Physics Department of the University of Texas at Austin, in the group led by Steven Weinberg. After being employed by the Istituto Nazionale di Fisica Nucleare of Italy, in 1993 he moved to CERN, where he is currently the Head of the Theoretical Physics Department. Academician of thIstituto Veneto di Scienze, Lettere ed Artiand of Accademia Galileiana, he has been awarded the 201Jacques Solvay Chairin Physics. Research The research activity of Giudice mainly deals with the formulation of new the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supergravity
In theoretical physics, supergravity (supergravity theory; SUGRA for short) is a modern field theory that combines the principles of supersymmetry and general relativity; this is in contrast to non-gravitational supersymmetric theories such as the Minimal Supersymmetric Standard Model. Supergravity is the gauge theory of local supersymmetry. Since the supersymmetry (SUSY) generators form together with the Poincaré algebra a superalgebra, called the super-Poincaré algebra, supersymmetry as a gauge theory makes gravity arise in a natural way. Gravitons Like any field theory of gravity, a supergravity theory contains a spin-2 field whose quantum is the graviton. Supersymmetry requires the graviton field to have a superpartner. This field has spin 3/2 and its quantum is the gravitino. The number of gravitino fields is equal to the number of supersymmetries. History Gauge supersymmetry The first theory of local supersymmetry was proposed by Dick Arnowitt and Pran Nath in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaugino
In supersymmetry theories of particle physics, a gaugino is the hypothetical fermionic supersymmetric field quantum (superpartner) of a gauge field, as predicted by gauge theory combined with supersymmetry. All gauginos have spin 1/2, except for gravitino (spin 3/2). In the minimal supersymmetric extension of the standard model the following gauginos exist: * The gluino (symbol ) is the superpartner of the gluon, and hence carries color charge. * The gravitino (symbol ) is the supersymmetric partner of the graviton. * Three winos (symbol and W͂3) are the superpartners of the W bosons of the SU(2)L gauge fields. * The bino is the superpartner of the U(1) gauge field corresponding to weak hypercharge. Sometimes the term "electroweakinos" is used to refer to winos and binos and on occasion also higgsinos. Note that in other SUSY models the zino () is the superpartner of the Z boson. Mixing Gauginos mix with higgsinos, the superpartners of the Higgs field's degrees of freedom, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Markus Luty
Marcus, Markus, Márkus or Mărcuș may refer to: * Marcus (name), a masculine given name * Marcus (praenomen), a Roman personal name Places * Marcus, a main belt asteroid, also known as (369088) Marcus 2008 GG44 * Mărcuş, a village in Dobârlău Commune, Covasna County, Romania * Marcus, Illinois, an unincorporated community * Marcus, Iowa, a city * Marcus, South Dakota, an unincorporated community * Marcus, Washington, a town * Marcus Island, Japan, also known as Minami-Tori-shima * Mărcuș River, Romania * Marcus Township, Cherokee County, Iowa Other uses * Markus, a beetle genus in family Cantharidae * ''Marcus'' (album), 2008 album by Marcus Miller * Marcus (comedian), finalist on ''Last Comic Standing'' season 6 * Marcus Amphitheater, Milwaukee, Wisconsin * Marcus Center, Milwaukee, Wisconsin * Marcus & Co., American jewelry retailer * Marcus by Goldman Sachs, an online bank * USS ''Marcus'' (DD-321), a US Navy destroyer (1919-1935) See also * Marcos (other) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
