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Topic: Pseudoscalar

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	Pseudoscalar - Wikipedia, the free encyclopedia
		Curiously, the pion forms a isospin triplet; the current associated with the pion is an axial vector, known as the axial vector current.
		A pseudoscalar in a geometric algebra is the highest-grade basis element of the algebra.
		Pseudoscalars in geometric algebra correspond to the pseudoscalars in physics.
	en.wikipedia.org /wiki/Pseudoscalar (323 words)

	Brazilian Journal of Physics - Weak decay constant of pseudoscalar mesons in a QCD-inspired model (Site not responding. Last check: 2007-11-01)
		We show that a linear scaling between the weak decay constants of pseudoscalars and the vector meson masses is supported by the available experimental data.
		One intriguing aspect is the dependence of the weak decay constant of the pseudoscalar meson with its mass.
		It is verified that a reasonable description of the weak decay constants of the pseudoscalar mesons is possible within the effective light-front model.
	www.scielo.br /scielo.php?pid=S0103-97332004000200034&script=sci_arttext&tlng=en (1664 words)

	PSEUDOSCALAR (Site not responding. Last check: 2007-11-01)
		수학안에, 기하학 대수안에pseudoscalar대수의 높 급료 기초 성분 이다.
		스칼라는 그러나 유일한 다름은 동등 전이의 밑에 저것,pseudoscalars손가락으로 튀김 그들의 표시 이다.
		It is licensed under the GNU free documentation license.
	www.faktoko.com /wiki/ko/ps/Pseudoscalar.htm (51 words)

	Vector (spatial) - Wikipedia, the free encyclopedia
		The terms scalar and vector as used here include pseudoscalars and pseudovectors or axial vectors (see also below).
		Accordingly, let, for example, each of two vectors be expressed as three space coordinates, and apply the formula for the cross product, resulting in three coordinates, which represent a third vector.
		Technically, the scalar triple product is not a scalar, it is a pseudoscalar: under a coordinate inversion (x goes to −x), it flips sign.
	en.wikipedia.org /wiki/Vector_(spatial) (3162 words)

	Scalar: Theory
		We obtain the mass spectra of the light pseudoscalar nonet mesons and the \sigma, a_0 mesons which are consistent with current experimental data.
		The quark-level linear sigma model is revisited, in particular concerning the identification of the f_0(400-1200) (or \sigma(600)) scalar meson as the chiral partner of the pion.
		The ease with which the data for these observables are reproduced in the linear sigma model lends credit to the necessity to include the sigma as a fundamental q\bar{q} degree of freedom, to be contrasted with approaches like chiral perturbation theory or the confining NJL model of Shakin and Wang.
	fafnir.phyast.pitt.edu /exotica/bib/ScalarTh.html (3770 words)

	[No title]
		In three dimensions it has scalar and pseudoscalar parts, so it is equivalent to a complex number.
		Consisting in this case in a sum of a scalar and a pseudoscalar, it can be considered as a dual number." Det4p::usage= "Det4p[cl1] gives the characteristic determinant of the element.
		It is the outcome of the product with the unit pseudoscalar and thus is the Clifford algebraic counterpart of both the original Grassmann's `Erganzung' and Hodge star operator." Dual4n::usage= "Dual4n[cl1] gives the `dual' of the element in Cl(0,4).
	www.ffn.ub.es /~jmparra/clif4.m (1455 words)

	No Title
		To make a fair comparison, we have computed the spectrum at two quark masses for each action, and interpolated to the point where the ratio of the Goldstone pion mass to the rho mass is 0.55.
		Then, we plot all of the pseudoscalar masses in units of the rho mass.
		The pattern of near degeneracies is predicted by the analysis of Lee and Sharpe.
	www.physics.arizona.edu /~doug/flavor_breaking (440 words)

	The Algebra of 3-Space (Site not responding. Last check: 2007-11-01)
		is thus the unit pseudoscalar for 3-dimensional space.
		We should be quite clear, however, that we are using the symbol i to stand for a pseudoscalar, and thus cannot use the same symbol for the commutative scalar imaginary, as used for example in conventional quantum mechanics, or in electrical engineering.
		We shall use the symbol j for this uninterpreted imaginary, consistent with existing usage in engineering.
	www.mrao.cam.ac.uk /~clifford/introduction/intro/node7.html (243 words)

	Brazilian Journal of Physics - The electromagnetic properties of the light pseudoscalar mesons via the Primakoff effect (Site not responding. Last check: 2007-11-01)
		We plan to use quasi-monochromatic photons at Jefferson Lab to measure the absolute cross section of small angle pseudoscalar meson photoproduction from the Coulomb field of nuclei.
		' is that pseudoscalar exchange is the major contribution to the hadronic light-by-light scattering part of the muon anomalous magnetic moment[15] and is thus clearly crucial for measurements of a
		' is that pseudoscalar exchange is the major contribution to the hadronic light-by-light scattering part of the muon anomalous magnetic moment[15].
	www.scielo.br /scielo.php?pid=S0103-97332004000500076&script=sci_arttext&tlng=en (1115 words)

	John D. Reid's Standard Model Page
		A detailed study was undertaken to better understand the nature of the strong force.
		My thesis studied another type of collision result - the production of particles that fall under the category of pseudoscalar mesons (Pseudoscaler refers to properties of the particles that are analgous to their angular momentum or spin.
		This experiment provided more data to better understand pseudoscalar production and ultimately better understand the strong force.
	www.lhup.edu /jreid/Thesis_Experiment.htm (502 words)

	Light-Cone Quark Model Analysis of Pseudoscalar and Vector Mesons in Radial Excitation (Site not responding. Last check: 2007-11-01)
		Recently the mass spectra and the wave functions of ground state pseudoscalar and vector mesons have been analyzed within the framework of the light-cone constituent quark model.
		A simple gaussian wavefunction used as a trial wave function for the variational principle together with a QCD motivated Hamiltonian including the Coloumb plus confining potential together with a hyperfine interaction turned out to be a good model to reproduce the available experimental data.
		It turns out that in order to reproduce the correct mass spectrum as well as the available experimental data for several observables like form factors, decay constants and charge radii it is necessary to introduce a form factor for the constituent quarks.
	flux.aps.org /meetings/YR99/CENT99/abs/S1445010.html (169 words)

	Pseudoscalar (Site not responding. Last check: 2007-11-01)
		In mathematics, a pseudoscalar in a geometric algebra is the highest-grade basis element of the algebra.
		The only difference is that under the parity transformation, pseudoscalars flip their signs while scalars do not.
		Wapipedia > Index > P > Ps > Pseudoscalar
	www.wapipedia.org /wikipedia/mobiletopic.aspx?cur_title=Pseudoscalar (130 words)

	Citebase - Pseudoscalar and vector correlations in instanton vacuum model (Site not responding. Last check: 2007-11-01)
		Pseudoscalar and vector correlations in instanton vacuum model
		Authors: Esaibegyan, S. Tamaryan, S. It is shown, that the correct account of quark interaction generated by instanton medium gives the possibility of description on the same ground of both pseudoscalar channel and low lying bound states in the vector channel.
		It must be noted, that all calculations are made in the approximation, taking into account only zero modes.
	www.citebase.org /cgi-bin/citations?id=oai:arXiv.org:hep-th/9412028 (130 words)

	Charmless hadronic decays of $B$ mesons to a pseudoscalar and a tensor meson
		Charmless hadronic decays of B mesons to a pseudoscalar and a tensor meson
		We study two-body charmless hadronic decays of B mesons to a pseudoscalar meson (P) and a tensor meson (T) in the frameworks of both flavor SU(3) symmetry and generalized factorization.
		Certain ways to test the validity of the generalized factorization are proposed, based on the flavor SU(3) analysis.
	publish.edpsciences.com /abstract/epjC/v22/p683 (216 words)

	People
		B. Margolis and H.D. Trottier, Exclusive decays of a heavy pseudoscalar, Proceedings of the Seventh Annual Montreal-Rochester-Syracuse-Toronto Meetings, University of Rochester, May 16-17, 1985, Ed.
		H.D. Trottier and R.R. Mendel, Weak matrix elements of pseudoscalar QMesons: Relativistic and short-distance QCD effects, Rare Decay Symposium, Vancouver, Canada, Nov. 30-Dec. 3, 1988, Eds.
		H.D. Trottier, Pseudoscalar decay constants and the 1/scaling law: What about relativistic and leading-log Coulomb dynamics?, Proceedings of the 1990 DPF Summer Study on High Energy Physics, Snowmass, Colo. June 25-July 13, 1990, Ed.
	www.sfu.ca /physics/people/faculty/trottier/publist.html (1357 words)

	Induced pseudoscalar coupling of the proton's weak interaction (Site not responding. Last check: 2007-11-01)
		I present an overview of the weak induced pseudoscalar coupling of the proton's charged current interaction.
		The coupling is dictated by the underlying chiral symmetry of the strong interaction and represents an important test of quantum chromodynamics in the non-perturbative regime.
		In particular the puzzling situation of muon capture on hydrogen targets is discussed in detail.
	flux.aps.org /meetings/YR04/APR04/baps/abs/S1550001.html (112 words)

	[No title] (Site not responding. Last check: 2007-11-01)
		A kinetic approach to eta' production from a CP-odd phase The production of (eta,eta')- mesons during the decay of a CP-odd phase is studied within an evolution operator approach.
		The non-linear vacuum mean field for the flavour singlet pseudoscalar meson is treated as a classical, self-interacting background field with fluctuations assumed to be small.
		The numerical solution provides the time evolution of momentum distribution function of produced eta'- mesons after a quench at the deconfinement phase transition.
	www.desy.de /~trento/abstracts/sarajev.txt (149 words)

	What ARE Clifford Algebras and Spinors?
		Ih corresponds to the quantum i of i hbar for the Dirac equation in Cl(0,2) = Q in which it is a pseudoscalar that is a bivector like the area hbar so that Ih must be combined with a Hodge dual operation in order to act as a scalar multiple;
		Note that the 2-dim Ic and Ih factors map to middle-grade bivectors while the factor Ich that is effective in 4-dim is the pseudoscalar and that Ich acts as both space/time conversion factor and
		That triality would correspond to the triality of Cl(1,7) = R(16) with dimensionality 2^8 = 256 = 16x16 and 8-dimensional half-spinors and graded structure 1 8 28 56 70 56 28 8 1 that is used in the D4-D5-E6-E7-E8 VoDou Physics model.
	www.valdostamuseum.org /hamsmith/clfpq2.html (5722 words)

	A measurement of the form factors of pseudoscalar mesons at large Q^2 (Site not responding. Last check: 2007-11-01)
		A measurement of the form factors of pseudoscalar mesons at large Q^2
		\sf Using the CLEO-II detector at the CESR e^+e^- storage ring at a center of mass energy of 10 GeV, we present a study of exclusive production of pseudoscalar mesons \pi^0, \eta and \eta^\prime in \gamma\gamma^* reactions in a single tagged mode.
		With a dataset comprising 3.4 fb^-1, we observe all major decay modes of pseudoscalar mesons.
	flux.aps.org /meetings/BAPSAPR95/abs/SI0902.html (131 words)

	Neutral Weak Interactions and Particle Decays (1976)
		We find that pseudoscalar NWI could probably be detected if they occur in
		to contribute to pseudoscalar meson decays at first order.
		It is possible to construct models in which this occurs.
	www.stephenwolfram.com /publications/articles/particle/76-neutral/4/text.html (592 words)

	[No title]
		The temperature dependence of these pseudoscalar meson masses has been studied while getting the value of the mass of one of the basis states
		Variation of their masses with the temperature has also been studied.
		The calculations for the radiative decays of these pseudoscalar mesons have also been carried out and the results are encouraging.
	fizika.hfd.hr /fizika_b/bv97/b6p213.htm (136 words)

	Correspondence of Linear Logic & Geometric Algebra (Site not responding. Last check: 2007-11-01)
		- "Nil", A__ corresponds to multiplication by the unit pseudoscalar.
		- The "1", "T", "__", and "0" of linear logic correspond to 1, the unit pseudoscalar, the unit pseudoscalar again, and zero.
		Going through Hestenes' book on Geometric Algebra and Girard et al's "Advances in Linear Logic", the correspondence runs so deep that I find it hard to believe the systems do not correspond.
	www.seas.upenn.edu /~sweirich/types/archive/1999-2003/msg00520.html (357 words)

	Electromagnetic structure and weak decay of pseudoscalar mesons in a light-front QCD-inspired model
		Electromagnetic structure and weak decay of pseudoscalar mesons in a light-front QCD-inspired model
		meson mass splitting and the pseudoscalar weak-decay constants with the mass of the meson, as seen in the available experimental data.
		We use an effective light-front QCD-inspired dynamical model regulated at short distances to describe the valence component of the pseudoscalar mesons.
	www.edpsciences.org /articles/epja/abs/2006/02/10050_2006_Article_2542/10050_2006_Article_2542.html (187 words)

	Citebase - Pseudoscalar Conversion and X-rays from the Sun (Site not responding. Last check: 2007-11-01)
		Citebase - Pseudoscalar Conversion and X-rays from the Sun
		We investigate the detection of a pseudoscalar φ that couples electromagnetically via an interaction 1over4g φ F tilde F.
		In particular, we focus on the conversion of pseudoscalars produced in the sun's interior in the presence of the sun's external magnetic dipole field and sunspot-related magnetic fields.
	www.citebase.org /abstract?id=oai%3AarXiv.org%3Ahep-ph%2F9507345 (153 words)

	Alignment of Quasar Polarizations 0507274
		We solve the general problem of mixing of electromagnetic and scalar or pseudoscalar fields coupled by axion-type interactions
		The problem depends on several dimensionful scales, including the magnitude and direction of background magnetic field, the pseudoscalar mass, plasma frequency, propagation frequency, wave number, and finally the pseudoscalar coupling.
		We apply the results to the first consistent calculations of the mixing of light propagating in a background magnetic field of varying direction, which shows a great variety of fascinating resonant and polarization effects.
	www.physicsforums.com /showthread.php?t=97652 (513 words)

	[No title]
		I am extensively involved in the investigations of a number of fundamental issues such as anomalies in QCD, SU(3) symmetry breaking, the substructure of pseudoscalar mesons p
		This project is a leading physics in one of the four physics frontier centers in America, which were approved by NSF in 2001.
		I played a leading role in the development of the proposal, Precision Measurements of Electromagnetic Properties of Pseudoscalar Mesons at 12 GeV via the Primakoff Effect.
	people.uncw.edu /ganl/research.htm (655 words)

	Neutral Weak Interactions and Particle Decays (1976)
		There can, of course, be NWI parts in various charged-current decays: these are considered in subsect.
		Probably the most promising pseudoscalar meson decays in which to detect NWI are those of
		We list the experimentally more accessible of these, together with experimental limits on their branching ratios, and the sections in which we shall discuss them: (P denotes
	www.stephenwolfram.com /publications/articles/particle/76-neutral/3/text.html (134 words)

	literature
		QCD accurately predicts the induced pseudoscalar coupling constant,
		Radiative muon capture on hydrogen and the induced pseudoscalar coupling,
		Radiative muon capture and induced pseudoscalar coupling constant in nuclear matter,
	www.npl.uiuc.edu /exp/mucapture/literature.html (385 words)

	[No title] (Site not responding. Last check: 2007-11-01)
		I will report on progress in measuring disconnected correlators associated with pseudoscalar flavor-singlet mesons.
		This will eventually allow us to compute the masses of the eta and eta' mesons.
		It can also help test the validity of the ``fourth-root trick'' used in unquenched lattice calculations where the number of flavors N_f
	www.maths.tcd.ie /seminars/2005.10.26.computational.php (80 words)

	RADIATIVE WIDTHS OF LIGHT PSEUDOSCALAR MESONS (Site not responding. Last check: 2007-11-01)
		RADIATIVE WIDTHS OF LIGHT PSEUDOSCALAR MESONS AT 11 GeV VIA THE PRIMAKOFF EFFECT
		The spontaneous breaking of chiral symmetry and the chiral anomalies in low-energy QCD are manifested in their most unambiguous form in the light pseudoscalar mesons sector.
		Understanding the electromagnetic properties of these mesons are, therefore, crucial for probing QCD at the confinement scale.
	fizika.hfd.hr /fizika_b/bv04/b13p483.htm (135 words)

	Comparison of Chiral Perturbation Theory and QCD Sum Rule Results for Pseudoscalar Isoscalar-Isovector Mixing (Site not responding. Last check: 2007-11-01)
		The forms of the neutral, non-strange pseudoscalar propagator matrix and mixed axial current correlator, $\langle 0\vert T(A_\mu^3 A_\nu^8)\vert 0\rangle$, are discussed at next-to-leading (one-loop) order in chiral perturbation theory.
		A recent attempt to extract the off-diagonal, isospin-breaking mixing part of the propagator from the mixed correlator, with the latter evaluated using QCD sum rules, is shown to be incorrect.
		To obtain a postscript copy of this paper, click here.
	www.physics.adelaide.edu.au /theory/papers/ADP-95-2.T169-abs.html (168 words)

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