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Topic: Regge theory

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Strong interaction

	CERN Courier - Bookshelf - IOP Publishing - article
		Unfortunately, the concepts and language of Regge theory have largely fallen into disuse, so that several generations of young physicists, whose education had a lacuna in this field, now find themselves working on experiments in which such concepts are of importance.
		The reasons for introducing complex angular momentum, crucial in the development of Regge theory, are simply and convincingly explained, and there follows an intelligible treatment of diffractive dissociation, the triple Regge limit (relevant to contemporary experiments), and how Regge theory can emerge from a field theoretic point of view.
		Perturbation theory breaks down in the range of small momentum transfer where the soft pomeron is operative, so it is not clear whether there is any incompatibility with the hard QCD pomeron.
	www.cerncourier.com /main/article/42/8/20 (2319 words)

	[No title]
		Third of all, superstring theory is useful in many fields of advanced physics, from cosmology to fl holes, but no one should expect it to answer every question in every field of physics, and there are some fields, such as chaos theory, that should not benefit from superstring theory at all.
		Previous alternative theories of the strong force, such as Regge theory, fell by the wayside as defunct historical curiosities.
		Perturbation theory is useful in a quantum theory that has a small dimensionless coupling constant, since it allows you to compute physical quantities as power series expansions in the small parameters.
	www.geocities.com /jefferywinkler/beyondstandardmodel6.html (4472 words)

	Regge theory - Wikipedia, the free encyclopedia
		In physics, Regge theory is a phenomenological theory of strong interactions at high energies, named for Tullio Regge.
		hep-th/0410131 Quantized tension: Stringy amplitudes with Regge poles and parton behavior
		R.J. Eden, Regge poles and elementary particles, Rep. Prog.
	en.wikipedia.org /wiki/Regge_theory (143 words)

	[No title]
		Regge theory forms the basis of most of the current attempts to understand the strong interactions of elementary particles.
		Consequently as a preliminary to any serious analysis of high energy data for two-body reactions it is desirable to extract the effective Regge trajectory from the differential cross-section data for each reaction under study.
		The effective Regge trajectory, alpha eff(t), for a given t is determined by first interpolating the experimental d sigma/dt to obtain values at the same t- but different s-values (where s is the square of of the c.m.
	www.cpc.cs.qub.ac.uk /summaries/ABCE_v1_0.html (298 words)

	Introduction
		Whether one accepted this viewpoint or not [1], in the absence of a viable theory of strongly interacting elementary particles it was clearly necessary to rely on general properties of the scattering matrix.
		Perturbative field theory, if utilized at all, could be employed primarily to illustrate and explore the consequences of these properties (Eden, Landshoff, Olive, and Polkinghorne, 1966).
		In this context, Regge theory (Regge, 1959; Chew and Frautschi, 1961; P.D.B. Collins, 1971) and its allies and generalizations, such as the dual model (Veneziano, 1968; Mandelstam, 1974) and Reggeon calculus (Gribov, 1968; Abarbanel, Bronzan, Sugar, and White, 1975; Baker and Ter-Martirosyan, 1976), which described particles primarily as analytic features of the S-matrix, flourished.
	www.phys.psu.edu /~cteq/handbook/Introduction.html (1354 words)

	Warren Siegel's research
		The present string theory is just a general framework, in the same way that relativistic quantum field theory, as defined by Poincaré invariance, unitarity, and locality, is too general (and unpredictive) until the condition of renormalizability is added.
		Since string theory, because of its Regge behavior, is fundamentally a theory of bound states, it would be nice to have a theory where all observed particles are described as bound states of fundamental particles, rather than describe hadrons as bound states of quark and gluon strings, which are themselves bound states of...
		Thus, in any theory where the graviton appears as a bound-state, including string theory, fl holes do not form, and the consequent problems of singularities and information loss are avoided; in cosmology, the Big Bang starts from a nonsingular minimum, which is preceded by a contraction that may account for the features of inflation.
	insti.physics.sunysb.edu /~siegel/research.shtml (3723 words)

	Tullio Regge - Wikipedia, the free encyclopedia
		Tullio Regge (born July 11, 1931 in Turin) is an Italian physicist.
		In 1989, Regge was elected to the European Parliament.
		The Regge theory, a theory of strong interactions at high energies, is named after him.
	en.wikipedia.org /wiki/Tullio_Regge (141 words)

	CERN Courier - Probing the pomeron - IOP Publishing - article
		Regge theory (after the Italian physicist Tullio Regge) gives the collective effect of the exchange of all of the members of such a family in terms of a Regge trajectory
		This is an experimental result: it cannot be predicted by Regge theory.
		Regge theory tells us that the energy dependence of the sum of everything that happens the "total cross-section" is dependent on the value of the trajectory at t = 0.
	www.cerncourier.com /main/article/39/3/16/1 (793 words)

	Session J2 - Astrophysics and Gravity.
		Relativistic kinetic theory and relativistic dissipative fluid theory are used to model dissipative processes in neutron star matter.
		In the context of these theories, the equation of state must satisfy a set of constraints in order for the equilibrium states of the fluid to be stable and for perturbations from equilibrium to propagate causally via hyperbolic equations.
		Application of these constraints to neutron star matter yields a softer maximally incompressible equation of state, and a lower limit on the maximum mass of neutron stars, than the maximally incompressible equation of state and mass limit resulting from requiring the adiabatic sound speed to be less than the speed of light.
	flux.aps.org /meetings/YR00/NWS00/abs/S1000.html (1237 words)

	Geometry of Integrable Systems: Pavia Research Unit
		The general theory of Hamiltonian systems endowed with symmetries is at work here, in a subtle but very effective way, (roughly speaking one can view the Regge curvature as a moment map and the construction of the moduli space of singular flat connection as a generalized Marsden-Weinstein reduction).
		For instance, it is not difficult to prove [3] that the asymptotics controlling the enumeration of distinct dynamical triangulations is to a significant extent governed by an operatorial equation related to the theory of toric actions on symplectic manifolds, [7],[8].
		These considerations strongly suggest the existence of a deep relations among the theory of such a differential operator, simplicial quantum gravity, and the topology of the moduli space of G-flat singular connections: it is precisely such relations that the Pavia group will focus on under the present proposal.
	www.sissa.it /fm/cofin99/pavia.html (1038 words)

	Kennett, Rosemary Gillian (1979-09-25) Experimental tests of triple Regge theory. ...
		Fits are made to the predictions of the triple Regge model which show that the model is successful.
		The [...], [...], K* and N Regge trajectories are extracted from the fits and they all agree with those found from exclusive processes at low -t.
		Results on the neutral final state production of [...] and [...] mesons from [...] beams are also presented and the [...] and [...] trajectories extracted using an extended triple Regge theory are in agreement with those from both the inclusive and exclusive processes.
	etd.caltech.edu /etd/available/etd-05052005-113303 (214 words)

	Not Even Wrong » Blog Archive » Slate on Krauss
		For instance special relativity, general relativity, quantum physics, quantum field theory even qcd and electroweak theory were all born out of necessity to explain physical phenomena which couldn’t be explained within the framework of the accept theories of the time.
		In the past, was claimed that string theory was a theory of physics with posibility for quantizing gravity, explaining the Standard Model, solving the measurement problem of QM, the divergences of R-QFT, and the singularities of GR (e.g.
		The problems with string theory originate from the fact that it is based on the Regge theory which itself is not well founded.
	www.math.columbia.edu /~woit/wordpress/?p=302 (6626 words)

	Christian Holm
		In spite of their enormous practical importance polyelectrolytes belong to the least understood subjects in polymer science, in sharp contrast to the electrically neutral polymer solutions, whose thermodynamic and structural properties are well understood by now.
		Our interest lies mainly in the Regge approach, where instead of the coordination number the edge lengths of the triangles are varied.
		To this extent we compare the phase behavior of the Z2-Regge-Ising-link model with the full Regge theory[ 34, 35, 36, 39].
	www.mpip-mainz.mpg.de /~holm/professional/research.html (1135 words)

	Murray Gell-Mann Publications (Site not responding. Last check: 2007-10-20)
		Superstring Theory, Closing Talk at the 67th Nobel Symposium in Unification of fundamental interactions: Proceedings of Nobel Symposium 67, Marstrand, Sweden, June 2-7.
		Complex Spinors and Unified Theories, (with P. Ramond and R. Slansky), in P. van Niuwenhuizen and D.Z. Freedman (eds.), Supergravity: Proceedings of the Supergravity Workshop at Stony Brook, September 27-29, 1979 (Amsterdam: North-Holland Publishing Co., 1979), pp.
		Experimental Consequences of the Hypothesis of Regge Poles (with S.C. Frautschi and F. Zachariasen), Phys.
	www.santafe.edu /sfi/People/mgm/mgmpubs.html (2250 words)

	CiteULike: Regge theory and statistical mechanics (Site not responding. Last check: 2007-10-20)
		An interesting connection between the Regge theory of scattering, the Veneziano amplitude, the Lee-Yang theorems in statistical mechanics and nonextensive Renyi entropy is addressed.
		@misc{citeulike:620866, abstract = {An interesting connection between the Regge theory of scattering, the Veneziano amplitude, the Lee-Yang theorems in statistical mechanics and nonextensive Renyi entropy is addressed.
		A non trivial application to spin glass theory is shortly outlined.}, author = {Canfora, F. and Parisi, L. and Vilasi, G. citeulike-article-id = {620866}, eprint = {cond-mat/0605225}, keywords = {mathematics physics quantum quantum-gravity statistical-mechanics}, month = {May}, priority = {3}, title = {Regge theory and statistical mechanics}, url = {http://arxiv.org/abs/cond-mat/0605225}, year = {2006} }
	www.citeulike.org /user/jrw/article/620866 (271 words)

	Re: Threshold behavior in Regge Theory
		This behavior can be different from the square root behavior, but it must reproduce the square root behavior as we approach t=0, u=0.
		I have a formalism that attributes this behavior as (s-branchpoint)^Alpha_of_s where branchpoint is at s=4m^2-t-u and Alpha_of_s is the s-channel Regge trajectory function evaluated at the branchpoint.
		Prev by thread: Re: Threshold behavior in Regge Theory
	www.lns.cornell.edu /spr/2002-10/msg0045315.html (448 words)

	SMALLX_1
		of Reggeized quarks and antiquarks inthe next-to-leading approximation.
		theories and was generialised later by L.Lipatov and Ya.Balitsky for the case of QCD.
		Fadin, R.Fiore, M.I. Kotsky, "Gluon Regge trajectory in the two-loop approximation",
	thsun1.jinr.ru /projects/small-x/SMALLX_1.htm (2182 words)

	A Brief Introduction to Regge Trajectories (via CobWeb/3.1 planetlab2.tamu.edu) (Site not responding. Last check: 2007-10-20)
		A Regge trajectory is the graph of mass square versus the orbital angular momentum quantum number of a particular family of particles.
		Regge trajectories are predicted by the phenomenological theories of strong interaction.
		In this talk, we will (1) briefly review Regge theory, and (2) explain the method of constructing Regge trajectories from data, and (3) give a complete preview of all known Regge trajectories.
	flux.aps.org.cob-web.org:8888 /meetings/YR00/APR00/abs/S8440004.html (91 words)

	The Theory of Complex Angular Momenta - Cambridge University Press
		This book provides a unique and rigorous introduction to the theory of complex angular momenta, based on the methods of field theory.
		The basic physical results and the approaches Gribov developed are now being rediscovered in a new context: in the microscopic theory of hadrons provided by quantum chromodynamics.
		The ideas and calculation techniques presented in this book are useful for analysing high energy hadron scattering phenomena, deep inelastic lepton-hadron scattering, the physics of heavy ion collisions, kinetic phenomena in phase transitions, and will be instrumental in the analysis of electroweak processes at the next-generation particle accelerators, such as LHC and TESLA.
	www.cambridge.org /uk/catalogue/catalogue.asp?isbn=0521818346 (299 words)

	Santa Fe Workshop: New Directions in Simplicial Quantum Gravity (Site not responding. Last check: 2007-10-20)
		Among the directions that were represented were dynamical triangulations, random surface theory, Regge calculus, causal sets, decoherent histories, topological quantum field theory and lattice and path integral approaches to non-perturbative quantum gravity.
		Unfortunately, most of the main proponents of the Regge calculus approach were absent, so a real resolution was not possible.
		These make possible a new interchange with statistical physics in which methods from the study of directed percolation and cellular autonota may be applied to elucidate non-perturbative behavior in quantum gravity.
	www.phys.lsu.edu /mog/mog10/node16.html (510 words)

	Fields and Strings (Site not responding. Last check: 2007-10-20)
		String Theory has the same purpose unless one invents a new quantum mechanics and/or a relativity which are drastically different from those known to us (with a new Einstein and/or a new Heisenberg).
		This is the reason why it was possible to construct the present form of quantum field theory with the scattering matrix and Feynman diagrams.
		If String Theory is to be different from field theory, and if the theory is going to address internal space-time structure of relativistic particles, it should be based on standing waves.
	www.physics.umd.edu /robot/einstein/fieldstr.html (1237 words)

	Publications
		Regge and Optical Models; Proceedings of ZGS Workshops (summer, 1971), Vol.
		Are Regge and Optical Models Equivalent, by an Amplitude Rotation?, Phys.
		Peripheral Scattering and an S-Channel Regge Approach to Particle Scattering (with S.Y. Chu), AEC report C00-2009-57.
	physics.indiana.edu /~hendry/publications.html (664 words)

	Lorella M. Jones, Physics Department, University of Illinois at Urbana-Champaign
		Lorella M. Jones, professor of physics and director of the Computer-based Education Research Laboratory (CERL) at the University of Illinois at Urbana-Champaign, died on February 9, 1995, at the age of 51.
		Her research career in theoretical high-energy physics was focused on four key areas: Regge pole theory, phenomenological models of photomeson production, jet calculus in quantum chromodynamics (QCD), and use of Grassmann coordinates to describe internal symmetries.
		Her predoctoral work, carried out under the guidance of Steven Frautschi at the California Institute of Technology, concerned the effects of kinematic suppression factors in Regge pole descriptions of scattering amplitudes.
	www.physics.uiuc.edu /people/Memorials/L-Jones/L-Jones-95.htm (665 words)

	Bio-sketch for Professor Charles Chiu (4/12/96)
		After that he worked in the Theory Division at CERN, Geneva Switzerland, worked at Cavendish Laboratory in Cambridge, England, and at Cal-tech in Pasadena, California.
		In 1971, Dr. Chiu joined UT Department of Physics as an Assistant Professor and the Center for Particle Theory (presently the Center for Particle Physics) as a faculty member.
		Chiu's research interest up to mid-90s was mainly in theoretical particle physics, especially in the area of the S-matrix theory, the Regge pole theory and particle collision phenomena at high energies.
	www.ph.utexas.edu /~itiq/chiudoc/biosketch.htm (443 words)

	Prof Peter Landshoff
		I was largely responsible for setting up the Millennium Mathematics Project, which is intended to show children, their parents and their teachers that mathematics is interesting, important, and not too difficult.
		I set up a collaboration between half a dozen Cambridge University departments and a similar number at MIT which does research in quantum information theory and technology.
		Perturbative QCD and Regge theory: closing the circle, Physics Letters B533 (2002) 277 (with A Donnachie) hep-ph/0111427
	www.damtp.cam.ac.uk /user/pvl (646 words)

	Simulating ultra-relativistic nuclear collisions: Screening corrections (Site not responding. Last check: 2007-10-20)
		A year ago, we presented a new approach to treat hadronic interactions or the initial stage of nuclear collisions [1,2].
		It is an effective theory based on the Gribov--Regge formalism, where the internal structure of the Pomerons at high energies is governed by perturbative parton evolution, therefore the name parton-based Gribov--Regge theory.
		The main improvement compared to models used so far is the appropriate treatment of the energy sharing between the different elementary interactions in case of multiple scattering.
	www.ias.ac.in /pramana/v60/p1121/abs.htm (146 words)

	Amazon.com: The Theory of Functions: Books: E. C. Titchmarsh (Site not responding. Last check: 2007-10-20)
		A Treatise on the Theory of Bessel Functions (Cambridge Mathematical Library) by G. Watson
		The Theory of the Riemann Zeta-Function (Oxford Science Publications) by E. Titchmarsh
		When the Regge Pole theory appeared in particle physics, I published several papers that were not much more than transpositions of results from Titchmarsh to the language of particle physics.
	www.amazon.com /Theory-Functions-Edward-C-Titchmarsh/dp/0198533497 (991 words)

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