Baixe o app para aproveitar ainda mais
Prévia do material em texto
Index A Addition theorem solid spherical harmonies, 282 spherical Bessel function and spherical harmonic, 282 spherical harmonic, 351 Alpha scattering 33, 159, 231-340 Analog reactions, 310 Angular distribution, 7, 22, 30 and conservation laws, 7, 10-12, 95, 145 Angular momentum, 9, 95, see also Conservation laws coupling, 351-353, see also Clebsch-Gordan coefficients critical, 316 grazing collision, 313 recoupling, 353-356 Antisymmetrization, 54-56, 201-206 Asymptotic behavior, 67, 73, 87, see also Boundary conditions complete wave function, 20-21 Coulomb functions, 28, 30 radial wave function of distorted wave, 29 Β Bessel function, spherical, 28, 362 addition theorem, 282 Bethe-Goldstone equation, 182, 184 Born approximation, see also Coupled channel Born approximation; Distorted-wave Born approximation optical potential, 24 plane wave, 7, 24 Born series, 65 Boundary conditions, 47, 298, see also Waves, incoming and outgoing channel, 74, 136-137 Lippman-Schwinger equation, 63-64 partial wave, 303-304 Breuckner G-matrix, see G-matrix C Central field, 14, 16, see also Optical potential Channel boundary conditions, 74, 136-137 coordinate, 57, 275, see also Relative coordinate coupled, 163-166, see also Coupled equations defined, 15 entrance, 16-17 function, 134, 303 open, 17 projection operator, 128 truncation, 128-130 373 374 Index Charge exchange reactions, 2, 119-120, 310 Clebsch-Gordan coefficients, 351-353 angular momentum conservation, 58, 93, 145 Coherence, 126, 135, 160-163, 293, see also Correlations Collective transitions, 160-163, 168, 173 Coulomb excitation, 123-124 surface vibrations, inelastic excitation, 106-111 Compound nuclear reactions, 2-3 competition with direct, 5-6 Conservation laws, 10-12, 145, see also Selection rules angular momentum, 7, 10, 58 Coordinate space representation, 62-64, 67 Core polarization, 143, 168-174, 185 Correlations, 2, 163 two-nucleon transfer reactions, 251, 261-263 Coulomb barrier energy, 41, 314 excitation, 123-124, 245 functions, 28, 31 phase shift, 28 potential, 30, 33, 43 scattering amplitude, 30 Coupled-channel Born approximation, 293-301 amplitudes, 295 source term method, 297-299 Coupled equations, 242, 297 deformed rotational nuclei, scattering, 227-228 inelastic scattering, 125-128 partial wave expansion, 133-137, 303 Coupled reaction channels, 293, 301-302 Creation operators, 98-100, 150 Cross section, 21, 30, 59, 138-139, 260 differential, see Angular distribution partial-wave expansions and derivation, 303-305 plane-wave approximation, 215-216 D Deflection function, 317-326 Deformed nuclei, see Collective transitions; Rotational levels Direct integrals, 55, 90, 252, 275 Direct interaction, 111, 113, 119, 156-160, see also Effective interaction Direct nuclear reactions, 2 - 3 , 13, 45-46 competition with compound, 5-6 Distorted wave, 27, 72-73 convention for incoming, 74-75 Distorted-wave Born approximation, 45-60, 77-78, 160, 252, 260 antisymmetrization, 54-56 charge-exchange reactions, 119-120 Coulomb excitation, 123-124 coupled equations solution, 137 discussion of approximations, 53-54, 292 distorted-wave impulse approximation, 120-123 (d, p) stripping reaction, 90-93 Gell-Mann-Goldberger transformation, 48-49 generalized, see Coupled channel Born approximation Green's function, 46-48, 76-77 impulse approximation, 120-122 nuclear rotational levels, inelastic excitation, 110 one-nucleon transfer, 97-104 pairing theory, 104-106 post and prior forms, 78 second, 79-80 single-nucleon states, inelastic excitation, 111-119 surface vibrations, inelastic excitation, 106-110 time reversal, 49, 78 transition amplitude, 50-53, 78 calculation, 89-124 coordinate dependences, 275-277 multipole expansion, 56-60 two-potential formula, 49-50 zero-range approximation, 94-95 Distortion function, 214-215 (d,p) stripping reaction, 90-93 Ε Effective interaction, 127, 131, 141-145, 156-158 energy dependence, 175-189 for exchange scattering, 201 and free interaction, 175-189 multiple scattering series, 131-133, 176 Index 375 multipole expansion, 113-115, 144, 154, 206-212 non-locality, 131 Elastic scattering, see also Optical potential; Scattering amplitude alpha particles, 33 defined, 1-2 heavy ions, 37, 326-330 nucléon, 1-2, 33 Exchange integrals, 55, 112, 201-206 Exchange operators, 113, 119 F Finite-range interaction, transfer reactions, 273-291 distorted-wave Born approximation amplitude, coordinate dependences, 275-277 parentage expansions, 277-278 selection rules contrasted with zero-range, 285-286 (t,p) reaction, 278-288 two-nucleon transfer, heavy ions, 288-291 Flux, 26, 139 Form factor, 307, see also Transition density collective transitions, 160-163 nuclear, 146-149 one-nucleon transfer, 322-323 single-particle, 117 two-nucleon transfer, 256-259, 322-323 Fourier transform, 203 Fractional parentage coefficients, 102-103, 270, see also Parentage expansion Free nucleon-nucleon interaction, 177, see also T-matrix, free two-body G Gaussian wave function, 254 Gell-Mann -Goldberger transformation, 48-49 generalization, 71-75 G-matrix, 133, 143, 176, 178-185, 190-191, 221-222, see also Watson's multiple scattering series local coordinate-space representation, 193-199 Grazing peak, 317 Green's function, 18 coordinate space representation, 63-64 distorted wave, 46, 76-77 expansion, 79 free, 19, 67, 73, 76 outgoing wave, 19, 47, 73, 243 Green's theorem, 85-87 H Hamiltonian, 14-15, 71 Hermitian and Green's theorem, 85-87 non-Hermitian, 74-75 partitions, 17, 71 shell model, 14-15 Harmonic oscillator, see Oscillator wave function Heavy ion reactions, 313-349 elastic scattering, 37-39, 318, 326-330 finite-range interaction, 274, 288 inelastic scattering, 326-330 recoil effects, 290-291 S-matrix, 318, 324-325, 334-336 special features, 313-314 two-nucleon transfer between, 288-291, 330-333 Higher-order processes, transfer reactions, 292-312 I Imaginary potential, 26, 33, see also Optical potential mean free path, 40, 322 Impulse approximation, 120-122 Indirect transitions, 135, 232, 271, 310, 330 higher-order processes, 292-312 Inelastic scattering, 1, 110-119 alpha, 231-240 deformed rotational nuclei, see Collective transitions; Rotational levels heavy ions, 326-330 microscopic theory, 140-167, 190-222 applications, 160-167, 216-222 coordinate-space representation, 193 -199 coupled equations, interactions, 141-143 cross sections, 215-216 direct interaction, 156-158 376 Index effective interaction, high-energy domain, 199-201 exchange contribution, 201-206 matrix elements, 143-145 multipole expansion, 206-212 nuclear form factor, 146-147 nuclear structure, 140-141, 149 particle creation and destruction operators, 150-151 particle-hole configurations, 151 -152 quasi-particle configurations, 152-154 selection rules, 145-146, 158-160 shell-model configurations, 149-150 single-particle form factors, 147-149 transition densities, 212-215 two-body amplitude, 192-193 rotational states, 110, 223-240 single-particle states, 111 -120 surface vibrations, 106 transition amplitude, 118 Integral equation of scattering theory, 70, 72-73, 75, 84-85 formal solution, 65-66 Lippmann-Schwinger equation, 62-65 scattering amplitude, 17-20 Interference, 310, 340, see also Coherence Internal coordinates, 18, 57, 252, 275-276 Intrinsic coordinates, 18, 57, 252, 275-276 J 3 - y' symbol, see Clebsch-Gordan coefficient 6 - j symbol, 134, 145, 353-354 9 - j symbol, 145, 355-356 Jacobian, 57, 276 Κ Kinetic energy operator, 14, 16, 27 L Laguerre polynomial, 362 Laplace operator, 350 Legendre expansion, 113-114, 144, 281 Legendre function, 351 Lippmann-Schwinger equation, 62-65 Long-range absorption,245 M Mol 1er operator, 66 Momentum space representation, 63-64 Multiple scattering series, 131-133, 176, see also Watson's multiple scattering series Multipole expansion, see also Partial wave expansion deformed optical potential, 224-226 transition amplitude, 56-60 two-nucleon interaction, 113-115, 144, 154, 206-212 Ν Nuclear form factor, 275-277 Nuclear overlap function, 90, 253, 278, see also Form factor Nuclear potential, 43, see also Optical potential Nuclear structure amplitudes, 146, 149-152, 206, 212 Nucleon-nucleon interaction, 177, see also T-matrix, free two-body Ο One-nucleon transfer reaction, 2, 8, 90-106 contrast with two-nucleon transfer, 250-251 distorted-wave Born approximation amplitude, 90-92 (d,p) stripping reaction, 90-93 improvements in framework of distorted-wave Born approximation, 97 spectroscopic factors, 97-106 transition amplitude, 92 zero-range approximation, 94-95 Optical potential, 45-46, 130, 142, 187-189, 326 alpha particles, 33 calculation of specific components, 241-249 Coulomb potential, 30-32 deformed nuclei, 225-226 distorted wave, 27, 48-49, 72-75 elastic scattering amplitude, 29-30 generalized, 71, 75, 294-296 Green's function, 46-48, 76-77 heavy ion scattering, 37-39 imaginary potential, 40-41 I n d e x 377 non-locality, 42, 131, 243 nucléon elastic scattering, 33-37 nuclear potential, 30-32 parametrization, 32-33 partial wave expansion, 26-29 partial wave sum convergence, 43-44 radial wave function, 26-29 rationale, 24-26 relation between spherical and deformed nuclei, 228-231 spin-orbit interaction, 33-37 systematics, 41 trivially equivalent local potential, 244 Oscillator wave function, 254, 361-362 Ρ Pairing theory, 104-106, 152-153, 270 Parentage expansion one-nucleon, 91, 97-106 two-nucleon, 253, 267-271, 277 Partial wave expansion, 26-27, 31-32, 48 convergence, 43-44 Coulomb, 31 coupled equations, 133-135, 303-305 for particles with spin, 35, 39 transition amplitude, 56-59 Particle-hole configurations, 151-152 Partition, 15, 21, 74, see also Channel Permutation operator, 54 Phase shift, 29 Coulomb, 28 Pick-up reactions, 2, 8, see also One-nucleon transfer reaction Plane wave, see also T-matrix Born approximation, 7, 24 expansion, 9, 364 normalization, 63 theory, 7-12 Polarizability, nuclear wave functions, 338-349 adiabatic estimate, 345-347 dynamical description, 347-349 Potential, see also Coulomb potential; Optical potential energy of two nuclei, 16 Projection operators, 127, 156, 179, 279 Propagator, see Green's function (p,t) reaction, 262-266, 278, 287-288 Q Quasi-particles, 152-154, 271 R Racah coefficient, 134, see also 6 - j symbol Rearrangement amplitude, 67, see also Scattering amplitude; T-matrix collisions, 71, 73, 89, see also One-nucleon transfer reactions; Two-nucleon transfer reactions Reaction amplitude, see T-matrix Reduced matrix element, 357-360 Relative coordinate, 15, 56 Relative motion, 16 optical potential, 25, 71, 296 Rotation functions, 224, 227, 361 Rotational levels, 110, 307-310 alpha scattering, 231-240 coupled equations, 227-228 multipole expansion, 224-226 optical potential, 228-231 wave functions, 223-224 S Scattering amplitude, see also T-matrix Coulomb, 30 defined, 17-20 elastic, 19, 29 inelastic or reaction, 20, 129, 304-306 Schrödinger equation, 10, 62, 299-300, 362 Coulomb potential, 31 entire system, 17 optical potential, 25, 72, 75, 294 shell model, 15 Selection rules, 93, 119, 145, 147, 285-286, 290 direct interaction, 158-160 spin-isospin, 256 Separation method, 183-184 Shell model, 14-15, 149, see also Single-nucleon states Single-nucleon states harmonic oscillation wave function, 254, 257, 361 378 Index inelastic excitation, 111-119 wave function, 91, 147 Single-nucleon transfer, see One-nucleon transfer S-matrix, 31, 136-137 amplitude, 318, 324-325 structure, 334-336 Source term method, 297-299 Spectroscopic factors, one-nucleon transfer, 97-106 sum rules, 98-100 Spherical Bessel function, see Bessel function, spherical Spherical harmonics, 350-351 addition theorem, 351 closure, 47 plane-wave expansion, 9, 364 Spherical tensors, 356 scalar product, 358 vector product, 359 Spin-orbit interaction, 33-36 Stripping reaction, see One-nucleon transfer reaction Structure amplitude, see Nuclear structure amplitudes Sum rules, 98-100 Surface vibrations, excitation, 106-110, 168-170 Τ Talmi-Moshinski transformation, 257, 362 Time reversal, 49, 78 T-matrix, 24, 66-70, 74, 129, see also specific reactions coupled-channel Born approximation, 295 defined, 20 distorted-wave Born approximation, see Distorted-wave Born approximation free two-body, 120-122, 132, 175, 191-199 Gell-Mann-Goldberger transformation, see Gell-Mann -Goldberger transformation one-nucleon transfer, 92 plane wave, 8, 12-13, 21 post and prior form, 70 scattering amplitude, see Scattering amplitude series expansion, 70, 79-85 two-nucleon transfer reaction, 259 Transition amplitude, see Scattering amplitude; T-matrix Transition densities, 212-215, see also Form factors Transition operator, 69-71, see also Watson's multiple scattering series Triton wave function, 280 Truncation, 127-130 Turning point, classical, 43, 315-316 Two-nucleon interaction, 16, 113, see also Effective interaction repulsion, 83-84, 125, 178 Two-nucleon transfer reactions, 2, 250-272 between heavy ions, 288, 330-332 between rotational nuclei, 307-310 between vibrational nuclei, 305-307 correlations, 251, 261-263 form factor, 259 parentage amplitudes, 267-271 selection rules, 256, 261 selectivity of, 251, 254, 261-262 structure amplitudes, 258 transition amplitude, 259-260 Two potential formula, 49 Two-step processes, 79, see also Higher-order processes; Indirect transitions V Vibrational nuclei indirect transitions, 330-333 inelastic excitation, 106-110 two-nucleon transfer, 305-307 W Watson's multiple-scattering series, 81-85, 175 Waves, see also Distorted wave incoming or outgoing, 28, 31, 49, 63 non-Hermitian Hamiltonian, 74 Wigner-Eckart theorem, 357 Woods-Saxon potential, 14, 32, see also Optical potential Wronskian, 47-48 Ζ Zero-range interaction, 57, 94, 255, 261, 274, 285
Compartilhar