Search results for "legend"
showing 10 items of 92 documents
Search for theZ(4430)−atBABAR
2009
We report the results of a search for Z(4430)^- decay to J/Ψ π^- or Ψ(2S)π^- in B(^-.0)→ J/Ψ π^-K^(0.+) and B^(-.0) → Ψ(2S)π^-K^(0.+) decays. The data were collected with the BABAR detector at the SLAC PEP-II asymmetric-energy e^+e^- collider operating at center-of-mass energy 10.58 GeV, and the sample corresponds to an integrated luminosity of 413 fb^(-1). Each K π^- mass distribution exhibits clear K^*(892) and K_2^*(1430) signals, and the efficiency-corrected spectrum is well described by a superposition of the associated Breit-Wigner intensity distributions, together with an S-wave contribution obtained from the LASS I=1/2 K π^- scattering amplitude measurements. Each K π^- angular dist…
B meson decay constants f B c $$ {f}_{B_c} $$ , f B s $$ {f}_{B_s} $$ and f B from QCD sum rules
2014
Finite energy QCD sum rules with Legendre polynomial integration kernels are used to determine the heavy meson decay constant f B c $$ {f}_{B_c} $$ , and revisit f B and f B s $$ {f}_{B_s} $$ . Results exhibit excellent stability in a wide range of values of the integration radius in the complex squared energy plane, and of the order of the Legendre polynomial. Results are f B c $$ {f}_{B_c} $$ = 528 ± 19 MeV, f B = 186 ± 14 MeV, and f B s $$ {f}_{B_s} $$ = 222 ± 12 MeV.
General formulae for polarization observables in two-body break-up of deuteron photodisintegration
1988
The formal expressions of all possible polarization observables ind(γ,N)N with polarized photons and oriented deuterons are derived in terms of thet-matrix elements. Furthermore, using the multipole expansion of thet-matrix, all observables are expanded in terms of Legendre polynomials or associated functions, the coefficients of which are given as bilinear forms of the multipole moments and allow a model independent analysis of experimental data.
Finite Energy Sum Rules with Legendre Polynomial Kernels
2016
Abstract In this note we report about a method to deal with finite energy sum rules. With a reasonable knowledge of the main resonances of the spectrum, the method guarantees that we can find a nice duality matching between the low energy hadronic data and asymptotic QCD at high energies.
La leyenda troyana en la Antigüedad Tardía. Una aproximación a los poemas de Dioscoro de Afrodito = The Trojan Legend in Late Antiquity. An Approach …
2017
La leyenda troyana se configura como relato literario a lo largo de la Antigüedad expandiendo y modificando los diferentes episodios que la componen. El estudio de la utilización de la leyenda en los poemas conservados del puño y letra de Dioscoro de Afrodito, autor del siglo VI, nos permiten aproximarnos a la evolución y configuración del canon troyano, así como a las obras clásicas todavía disponibles en su época y al resto de fuentes que le sirvieron como modelo para sus composiciones.The Trojan legend becomes a literary narrative throughout Antiquity expanding and modifying its different episodes. The study of this legend in Dioscorus of Aphrodito’s autograph poems (from 6th century BC)…
Some Previously Relevant Aspects of Academic Life: Venia Legendi and the Status of a Private Docent in the World and in Riga Polytechnicum (1862–1896)
2021
The study examines the status of a private docent, the academic position which was introduced across the world in the 18th century and which also existed in Latvia from the second half of the 19th century until the end of World War II. The status of the private docent as it used to be understood in Latvia is compared with other countries, mainly considering German-type universities. Definition of the terms «venia legendi» and «private docent» providing examples of academic activity of the lecturers of Riga Polytechnicum (RP) allow considering these concepts from various perspectives in order to make their meaning and usage in the previous centuries transparent for the users in the 21st cent…
La tesis de Weber en torno al capitalismo en el 500 Aniversario de la Reforma Protestante
1970
La tesis de Weber respecto a una hipotética huella del protestantismo en el «espíritu» del capitalismo ha sido ampliamente difundida. Sin desmerecer su planteamiento (la indemostrabilidad no resta verosimilitud), lo cierto es que, siendo una hipótesis difícilmente falsable, de ella han derivado formulaciones poco cuidadosas que vendrían a justificar las actuales circunstancias económicas con hechos religiosos diferenciales. Siendo la religión un hecho omniabarcador sin igual, tales circunstancias dependen de muchos factores. Se ha pretendido conferirle validez científica a partir de datos socioeconómicos de lo más variado. Algo aplicable también a quienes pretenden refutarle. La intoxicació…
Indefinite integrals of quotients of Gauss hypergeometric functions
2018
A method recently applied to obtain indefinite integrals involving quotients of some common special functions is applied to obtain indefinite integrals of some quotients of Gauss hypergeometric fun...
Indefinite integrals of quotients of special functions
2018
ABSTRACTA new method is presented for deriving indefinite integrals involving quotients of special functions. The method combines an integration formula given previously with the recursion relations obeyed by the function. Some additional results are presented using an elementary method, here called reciprocation, which can also be used in combination with the new method to obtain additional quotient integrals. Sample results are given here for Bessel functions, Airy functions, associated Legendre functions and the three complete elliptic integrals. All results given have been numerically checked with Mathematica.
New special function recurrences giving new indefinite integrals
2018
ABSTRACTSequences of new recurrence relations are presented for Bessel functions, parabolic cylinder functions and associated Legendre functions. The sequences correspond to values of an integer variable r and are generalizations of each conventional recurrence relation, which correspond to r=1. The sequences can be extended indefinitely, though the relations become progressively more intricate as r increases. These relations all have the form of a first-order linear inhomogeneous differential equation, which can be solved by an integrating factor. This gives a very general indefinite integral for each recurrence. The method can be applied to other special functions which have conventional …