Deep inelastic neutron scattering from diatomic molecules

被引：8

作者：

Colognesi, D

Pace, E

机构：

[1] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

[2] Univ Roma Tor Vergata, Ist Nazl Fis Mat, I-00133 Rome, Italy

来源：

PHYSICA B | 1999年 / 266卷 / 04期

关键词：

inelastic neutron scattering; diatomic molecules; momentum distribution; impulse approximation;

D O I：

10.1016/S0921-4526(99)00095-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A quantum mechanical approach to the description of neutron scattering at very high momentum transfer from homonuclear and heteronuclear diatomic molecules in a wide range of temperatures is proposed. The response function is computed by means of translational (intermolecular) and vibrational (intramolecular) momentum distributions, the latter being determined by the rotovibrational state of the molecule. Specific calculations for parahydrogen at 17 and 110 K, normal hydrogen at 110 K, liquid nitrogen at 77 K and HD at 110 K are reported, showing a sensible effect of the rotationally excited population. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：267 / 281

页数：15

共 22 条

[1] Temperature dependence of molecular kinetic energy in dense fluid parahydrogen [J].

Andreani, C ;

Colognesi, D ;

Filabozzi, A ;

Nardone, M ;

Azuah, RT .

EUROPHYSICS LETTERS, 1997, 37 (05) :329-334

[2] DEEP-INELASTIC NEUTRON-SCATTERING OFF D-2 AND H-2 AND MOMENTUM DISTRIBUTIONS OF NUCLEI IN DIATOMIC-MOLECULES [J].

ANDREANI, C ;

FILABOZZI, A ;

PACE, E .

PHYSICAL REVIEW B, 1995, 51 (14) :8854-8863

[3]

[Anonymous], PHYSICS ATOMS MOL

[4] DEEP INELASTIC NEUTRON-SCATTERING IN THE STUDY OF ATOMIC MOMENTUM DISTRIBUTIONS [J].

EVANS, AC ;

MAYERS, J ;

TIMMS, DN ;

COOPER, MJ .

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1993, 48 (1-2) :425-432

[5] MOMENTUM DISTRIBUTIONS AND FINAL-STATE EFFECTS IN NEUTRON-SCATTERING [J].

GLYDE, HR .

PHYSICAL REVIEW B, 1994, 50 (10) :6726-6742

[6] HIGH-ENERGY NEUTRON SCATTERING FROM LIQUID HE4 [J].

HOHENBERG, PC ;

PLATZMAN, PM .

PHYSICAL REVIEW, 1966, 152 (01) :198-+

[7] INELASTIC NEUTRON-SCATTERING FROM LIQUID AND SOLID HYDROGEN AT HIGH MOMENTUM-TRANSFER [J].

LANGEL, W ;

PRICE, DL ;

SIMMONS, RO ;

SOKOL, PE .

PHYSICAL REVIEW B, 1988, 38 (16) :11275-11283

[8] THE RESOLUTION FUNCTION OF A PULSED-SOURCE NEUTRON CHOPPER SPECTROMETER [J].

LOONG, CK ;

IKEDA, S ;

CARPENTER, JM .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1987, 260 (2-3) :381-402

[9] MEASUREMENT OF THE PROTON WAVE-FUNCTION IN MOLECULAR-HYDROGEN BY NEUTRON COMPTON-SCATTERING [J].

MAYERS, J .

PHYSICAL REVIEW LETTERS, 1993, 71 (10) :1553-1556

[10] MOMENTUM DISTRIBUTIONS IN FLUIDS DETERMINED BY NEUTRON COMPTON-SCATTERING [J].

MAYERS, J ;

EVANS, AC .

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS, 1994, 16 (07) :737-745

← 1 2 3 →