cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17632/x3fp3dsb6y.1
title: DTUJET-93: Sampling inelastic proton-proton and antiproton-proton collisions according to the two-component dual parton model

description: Abstract A new version of a Monte Carlo Program for hadronic multi-particle production is presented. It is based on the two-component dual parton model which includes the dual topological unitarization of soft and hard cross sections. The model treats both soft (low p_⊥ ) and hard (minijet, large p_⊥ ) processes in a unified and consistent way. The unified description is important at TeV-energies of hadron colliders, where the hard perturbative cross sections of QCD become large and comparable to the ... Title of program: DTUJET Catalogue Id: ACVK_v1_0 Nature of problem Simulation of high energy hadron collisions. Versions of this program held in the CPC repository in Mendeley Data ACVK_v1_0; DTUJET; 10.1016/0010-4655(94)90037-X This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/2f3h6nfvww.1
title: POLDIS A Monte Carlo for POLarized (semi-inclusive) Deep Inelastic Scattering

description: Abstract POLDIS is a Monte Carlo program for polarized (semi-inclusive) deep inelastic scattering (DIS). Unpolarized DIS events are generated with the existing lepto-production event generators LEPTO for DIS and AROMA for Heavy Flavor production. The relevant spin asymmetries are computed at partonic level to first order in α_sfor each generated event, and are then convoluted with the corresponding parton polarization. This procedure provides a polarization weight for each event. The average of thes... Title of program: POLDIS, version 2.0 Catalogue Id: ADGI_v1_0 Nature of problem Deep inelastic scattering (DIS) of polarized charged leptons off polarized nuclear targets allows to access the spin dependent nucleon structure. When interpreted in the framework of the quark-parton model the experimental results show that the quark spins account only for a rather small fraction of the nucleon spin, thus implying an appreciable contribution either of gluons or possibly of orbital angular momentum [1]. The study of semi-inclusive DIS allows, in addition, to distinguish the role ... Versions of this program held in the CPC repository in Mendeley Data ADGI_v1_0; POLDIS, version 2.0; 10.1016/S0010-4655(97)00063-5 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/3d2wm5w2sm.1
title: Multistate molecular treatment of atomic collisions in the impact parameter approximation. III - integration of coupled equations and calculation of transition amplitudes for Coulomb trajectories

description: Title of program: TANGO Catalogue Id: ACWU_v1_0 Nature of problem Multistate molecular treatment of atomic collisions in the impact parameter approximation. Calculation of the transition amplitudes for Coulomb classical trajectories. CORRECTION SUMMARY: Vol:Year:Page 17:1979:425 "000A CORRECTION 27/03/79" "Multistate molecular treatment of atomic collisions in the impact parameter approximation. III - Integration of coupled equations and calculation of transition amplitudes for Coulomb trajectories. (C.P. C. 12(1976)199)." R.D. Piacentini; A. Salin Note: correction instructions are contained in source code Versions of this program held in the CPC repository in Mendeley Data ACWU_v1_0; TANGO; 10.1016/0010-4655(76)90068-0 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)
DOI: 10.17632/h9n6tcj5h9.1
title: Evaluation of legendre functions of argument greater than one

description: Abstract In this paper we present an algorithm to evaluate Legendre functions of the first and second kinds (P_v ,Q_v ) for integral and half-integral order and argument greater than one. The code is based on the calculation of the continued fraction for the Q's, the Wronskian relating P's and Q's and the application of forward recurrence relations for the P's and backward recurrence for the Q's. We also show an application of these algorithms to the evaluation of the electrostatic field due to a char... Title of program: DLEGENI, DLEGENS Catalogue Id: ADGO_v1_0 Nature of problem We include two codes in order to evaluate: 1) Legendre functions of half-integral order (subroutine DLEGENS) 2) Legendre functions of integral order (subroutine DLEGENI) Both codes evaluate Legendre functions of the first and second kinds from the lower (positive) orders to a maximum order NMAX in the same run. The algorithms find their application in problems with a spheroidal (integral order) or toroidal (semi-integral order) geometry. We show as an example the application of subroutine DLEGEN ... Versions of this program held in the CPC repository in Mendeley Data ADGO_v1_0; DLEGENI, DLEGENS; 10.1016/S0010-4655(97)00076-3 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/jh8s3t2jfn.1
title: Angle decomposition of matrices

description: Abstract An algorithm (ADUM) is developed to decompose an arbitrary N × N unitary matrix M into 1/2N(N - 1) simple factor matrices. Each factor matrix has the form of an N × N unit matrix, except for a 2 × 2 complex rotation submatrix located at an appropriate position on the diagonal. The factor matrices each contain a rotation angle and between 0 and 3 phase angles, adding up to a total of N^2independent real angles. This can be summarized into an N × N real angle matrix Γ, containing the same inf... Title of program: adum.f Catalogue Id: ADHI_v1_0 Nature of problem The algorithm can be applied to any problem where a unitary matrix M is evaluated as a function of an external parameter. It can be generalized to a hermitian or generally complex matrix A of which this dependence is further transmitted to the eigenvector matrix M of A. Versions of this program held in the CPC repository in Mendeley Data ADHI_v1_0; adum.f; 10.1016/S0010-4655(97)00133-1 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/skdbd6jyd3.1
title: A combined Mathematica-Fortran program package for analytical calculation of the matrix elements of the microscopic cluster model

description: Abstract We present a computer code that analytically evaluates the matrix elements of the microscopic nuclear Hamiltonian between Slater determinants of Gaussian packet single particle orbits. Such matrix elements appear in the Generator Coordinate Model and the Resonating Group Model versions of the microscopic multicluster calculations. Title of program: MCKER Catalogue Id: ADFU_v1_0 Nature of problem This computer code constructs matrix elements to be used in microscopic studies of light multicluster system. Versions of this program held in the CPC repository in Mendeley Data ADFU_v1_0; MCKER; 10.1016/S0010-4655(97)00031-3 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/sm54rk8yb8.1
title: Computer program for the relativistic mean field description of the ground state properties of even-even axially deformed nuclei

description: Abstract We present a Fortran program for the calculation of the ground state properties of axially deformed even-even nuclei in the framework of Relativistic Mean Field Theory (RMF). In this approach a set of coupled partial differentials has to be solved self-consistently: the Dirac equation for the nucleons moving in self-consistent fields and the Klein-Gordon equations for the meson fields and the electromagnetic field, whose sources are scalar and vector densities determined of the nucleons. For ... Title of program: RMFAXIAL.f Catalogue Id: ADFR_v1_0 Nature of problem Relativistic Mean Field (RMF) theory [1,2] has been very successful [3,4,5,6,7,8,9] in accurately describing nuclear matter properties and ground state properties of finite nuclei spread over the entire periodic table including those away from the stability line. Nucleonic and mesonic degrees of freedom are explicitly included from the very beginning in the relativistic framework. As a result nuclear saturation and the correct spin-orbit splitting emerges automatically. Initially RMF theory has ... Versions of this program held in the CPC repository in Mendeley Data ADFR_v1_0; RMFAXIAL.f; 10.1016/S0010-4655(97)00022-2 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/b7bj3w2r6x.1
title: Multistate molecular treatment of atomic collisions in the impact parameter approximation. II — calculation of differential cross-sections from the transition amplitudes for the straight line case

description: Title of program: EIKON Catalogue Id: ACXD_v1_0 Nature of problem Multistate molecular treatment of atomic (or molecular) collisions in the impact parameter approximation. Calculation of eikonal differential cross-sections. Versions of this program held in the CPC repository in Mendeley Data ACXD_v1_0; EIKON; 10.1016/0010-4655(77)90027-3 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/cpgbp7kj4c.1
title: Maple procedures for the coupling of angular momenta. VIII. Spin-angular coefficients for single-shell configurations

description: Abstract Matrix elements of physical operators are required when the accurate theoretical determination of atomic energy levels, orbitals and radiative transition data need to be obtained for open-shell atoms and ions. The spin-angular part for these matrix elements is typically based on standard quantities such as matrix elements of the unit tensor, the (reduced) coefficients of fractional parentage as well as a number of other reduced matrix elements concerning various products of electron creation ... Title of program: RACAH Catalogue Id: ADFV_v8_0 [ADUR] Nature of problem The accurate computation of atomic properties and level structures requires a good understanding and implementation of the atomic shell model and, hence, a fast and reliable access to its standard quantities. Apart from various coefficients of fractional parentage and the reduced matrix elements of the unit tensors, these qualities include the so-called spin-angular coefficients, i.e. the spin-angular parts of the many-electron matrix elements of physical operators, taken in respect of a basis o ... Versions of this program held in the CPC repository in Mendeley Data ADFV_v1_0; Racah; 10.1016/S0010-4655(97)00032-5 ADFV_v2_0; Racah; 10.1016/S0010-4655(98)00021-6 ADFV_v3_0; RACAH; 10.1016/S0010-4655(00)00234-4 ADFV_v4_0; RACAH; 10.1016/S0010-4655(01)00218-1 ADFV_v5_0; RACAH; 10.1016/S0010-4655(01)00219-3 ADFV_v6_0; RACAH; 10.1016/S0010-4655(02)00591-X ADFV_v7_0; RACAH; 10.1016/S0010-4655(03)00227-3 ADFV_v8_0; RACAH; 10.1016/j.cpc.2004.11.003 ADFV_v9_0; RACAH; 10.1016/j.cpc.2005.12.008 ADFV_v10_0; RACAH; 10.1016/j.cpc.2009.06.018 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)
DOI: 10.17632/m37y99y8sw.1
title: PULSAMP: A program to predict the amplification of nanosecond CO2 laser light pulses

description: Title of program: PULSAMP Catalogue Id: ACXC_v1_0 Nature of problem PULSAMP is a program which predicts the behaviour of a light pulse of duration - 1 ns., as it propagates through a gain medium. Singleline or multiline/multiband operation may be simulated. The laser medium consists of a pre-pumped CO2, N2, He mixture. Versions of this program held in the CPC repository in Mendeley Data ACXC_v1_0; PULSAMP; 10.1016/0010-4655(76)90090-4 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/nwpm7z8gj3.1
title: Numerical solution of Q 2 evolution equations for polarized structure functions

description: Abstract We investigate numerical solution of Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) Q^2evolution equations for longitudinally polarized structure functions. Flavor nonsinglet and singlet equations with next-to-leading-order α_scorrections are studied. A brute-force method is employed. Dividing the variables x and Q^2into small steps, we simply solve the integrodifferential equations. Numerical results indicate that accuracy is better than 1% in the region 10^(-5)&lt; x &lt; 0.8 if more... Title of program: BFP1 Catalogue Id: ADHF_v1_0 Nature of problem This program solves DGLAP Q^2 evolution equations with or without next- to-leading-order alphas effects for longitudinally polarized parton distributions. The evolved distributions could be convoluted with coefficient functions for calculating the structure function g1. Both flavor-nonsinglet and singlet cases are provided, so that the distributions, xDeltaq_NS, xDeltaq_s, xDeltaq_i+ equivalent to xDeltaq_i^+ xDeltaqibar (i=quark flavor), xDeltag, xg1NS, xg1_S, and xg(1,_i)^+ can be obtained. Versions of this program held in the CPC repository in Mendeley Data ADHF_v1_0; BFP1; 10.1016/S0010-4655(97)00129-X This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/wz32prkhvg.1
title: Vacuum-polarization potentials of extended nuclear charges

description: Abstract FORTRAN program VACPOL is presented that calculates accurately and efficiently the first-order vacuum-polarization potential of two electric charges as a function of their separation. The charges can be extended, with distributions specified by density functions that are most often used to model the distribution of charge in atomic nuclei. The code employs analytical methods of calculation, utilizing a Fourier-Bessel expansion of the potential and an analytical evaluation of the finite-radius... Title of program: VACPOL Catalogue Id: ACVM_v1_0 Nature of problem The first-order vacuum-polarization correction of quantum electrodynamics to the Coulomb potential of a point charge is the so-called Uehling potential. The first-order vacuum-polarization potential due to two extended charges is obtained by folding the Uehling potential with the density distributions of the two charges. The program calculates such a potential as a function of the distance between the centres of the two density distributions, which can have the functional forms that are most oft ... Versions of this program held in the CPC repository in Mendeley Data ACVM_v1_0; VACPOL; 10.1016/0010-4655(94)90036-1 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/n7jxtxpptx.1
title: TLASER — A CO2 laser kinetics code

description: Title of program: TLASER Catalogue Id: ACWD_v1_0 Nature of problem TLASER is a program which predicts the output power pulse and gain from a model of an electrically excited CO2 gas laser, including the effects of dissociation and a variable ambient gas temperature. The laser medium consists of CO2, N2, He, and CO, the latter being introduced intentionally, or by dissociation of CO2. ADAPTATION SUMMARY: Vol:Year:Page 20:1980:413 "0001 INJLOK" "INJLOK: a CO2 laser injection locking code." A.R. Davies; K. Smith; R.M. Thomson Note: adaptation instructions are contained in source code Versions of this program held in the CPC repository in Mendeley Data ACWD_v1_0; TLASER; 10.1016/0010-4655(75)90078-8 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/tzy3c7xh2h.1
title: Diagrammatic many-body perturbation expansion for atoms and molecules: I. general organization

description: Title of program: MBPT ORGANIZATION Catalogue Id: ACXF_v1_0 Nature of problem The determination of perturbative solutions to the non-relativistic Schrodinger equation for the electronic structure of atomic and molecular systems is considered within the Born-Oppenheimer approximation. Versions of this program held in the CPC repository in Mendeley Data ACXF_v1_0; MBPT ORGANIZATION; 10.1016/0010-4655(78)90050-4 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/5d9jst7tzw.1
title: Applications of maple to general relativity

description: Abstract The present paper describes the Riemann package written in the Maple programming language. The package has been developed for tensor component calculations in General Relativity and for some tensor abstract manipulations. It allows the user to perform tensor algebra operations, such as addition, multiplication and contraction of tensors. It is also possible to create new tensors with defined symmetries and to apply Maple functions to the tensor components. We give an example of an application... Title of program: RIEMANN Catalogue Id: ADGP_v1_0 Nature of problem Calculation and manipulation of tensors of General Relativity. This package can be used to obtain field equations for a given metric in coordinate or vierbein basis. New tensor equations can be defined and manipulated. Versions of this program held in the CPC repository in Mendeley Data ADGP_v1_0; RIEMANN; 10.1016/S0010-4655(97)00078-7 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/9h8s4phx8t.1
title: Recursive evaluation of 3j and 6j coefficients

description: Title of program: J1-RECURSION OF 3J-COEFFICIENTS Catalogue Id: ACWQ_v1_0 Nature of problem Subroutine REC3JJ generates 3j-coefficients from the exact solution of a recursion equation. The algorithm is more efficient and accurate than those based on explicit expressions, particularly, in the commonly arising case in which a complete set of 3j-coefficients is needed. The algorithm is numerically stable for large quantum numbers which occur in problems of molecular dynamics. Versions of this program held in the CPC repository in Mendeley Data acwq_v1_0; J1-RECURSION OF 3J-COEFFICIENTS; 10.1016/0010-4655(76)90058-8 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/h4tzdvkkmp.1
title: Numerical database system based on a weighted search tree

description: Abstract An on-line numerical database system, that is based on the concept of a weighted search tree and which functions like a file directory, is introduced. The system, which is designed to aid in reducing time-consuming redundant calculations in numerically intensive computations, can be used to fetch, insert and delete items from a dynamically generated list in optimal [ O (log n) where n is the number of items in the list] time. Items in the list are ... Title of program: WSTREE Catalogue Id: ACTZ_v1_0 Nature of problem Scientific computing applications frequently involve redundant calculations. This occurs either because the number of numbers that need to be calculated is too large to be stored in memory or they occur in unknown combinations so pregeneration, which would allow them to be ordered separately and efficiently so a simple binary look up could be used, is impracticable or impossible. The wst numerical database system introduced here [1-3] can be used to circumvent this problem as it enables one to p ... Versions of this program held in the CPC repository in Mendeley Data ACTZ_v1_0; WSTREE; 10.1016/0010-4655(94)90172-4 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/zp3wfgzngk.1
title: Algebraic and numerical manipulation of the even-power-seriescentral potentials by means of the hypervirial theorems technique

description: Abstract A combination of two programs is described for the study of the class of central potentials V(r) = - D + Σ^∞ _(k=0)V_k b^k r^(2k+2), V_0= w^2&gt; 0, which is of special interest in theoretical physics. The first program uses the Hypervirial Theorems (HVT) and the Hellmann-Feynman Theorem (HFT) to calculate approximate analytic expressions for the non-relativistic energy eigenvalues, the expectation values of the potential and the kinetic energy operator, and the expectation values of th... Title of program: HVTDER-HVTPAS Catalogue Id: ADGB_v1_0 Nature of problem Algebraic and numerical calculation of the energy eigenvalues E_nl of the 3D Schroedinger equation as well as of the expectation values _nl, _nl, _nl for the class of central potentials V(r) = -D + Sigma (Vk b^k r^(2k+2)) k=0 to infinity Versions of this program held in the CPC repository in Mendeley Data ADGB_v1_0; HVTDER-HVTPAS; 10.1016/S0010-4655(97)00053-2 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/brtc3zh87p.1
title: Multistate molecular treatment of atomic collisions in the impact parameter approximation. IV

description: Abstract We propose a new version of the program PAMPA with increased efficacy for large systems of coupled equations. The organisation of the present version is better suited to vector processors. The method used to calculate the integrals over energy differences takes full advantage of the spline representation used for the energies, which increases its accuracy. Title of program: SUPERPAMPA Catalogue Id: ACWJ_v2_0 [ABTY] Nature of problem Multistate molecular treatment of atomic collisions in the impact parameter approximation. Calculation of the transition amplitudes for the straight line case. Versions of this program held in the CPC repository in Mendeley Data ACWJ_v1_0; PAMPA; 10.1016/0010-4655(75)90067-3 ACWJ_v2_0; SUPERPAMPA; 10.1016/0010-4655(91)90121-Z This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/rbj6j9b4pg.1
title: Ellips — A FORTRAN simulation of a polarization-modulation ellipsometer

description: Abstract Title of program: ELLIPS Catalogue number: ACXK Program obtainable from: CPC Program Library, Queen's University of Belfast, N. Ireland (see application form in this issue). Computer: Texas Instruments ASC II, Installation: NRL Operating system: OS4.021 Programming language used: FORTRAN IV High speed storage required: 20 500 words No. of bits in a word: 32 Overlay structure: none Peripherals used: Card reader, printer No. of cards in combined program and test deck: 1209 Card punching code: E... Title of program: ELLIPS Catalogue Id: ACXK_v1_0 Nature of problem The problem treated is the analysis of the effect, on the detected AC signals, of imperfections in and misalignment of the optical components of a polarization-modulation ellipsometer. This permits correction of the values of psi and delta (characteristics of the sample surface) for systematic error, estimation of the uncertainty in the final result, and identification of the most significant sources of experimental error. Versions of this program held in the CPC repository in Mendeley Data ACXK_v1_0; ELLIPS; 10.1016/0010-4655(77)90015-7 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)
DOI: 10.17632/fgwr68zk26.1
title: Diagrammatic many-body perturbation expansion for atoms and molecules: III. Third-order ring energies

description: Title of program: MBPT RING DIAGRAMS Catalogue Id: ACXH_v1_0 Nature of problem The non-relativistic Schrodinger equation for the electronic structure of atomic and molecular systems is considered within the Born- Oppenheimer approximation. Versions of this program held in the CPC repository in Mendeley Data ACXH_v1_0; MBPT RING DIAGRAMS; 10.1016/0010-4655(78)90052-8 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)