Two-center and path interference in dissociative capture in p+H2 collisions

被引：0

作者：

Bastola, S. ^{[1
,6
]}

Dhital, M. ^{[1
,7
]}

Lamichhane, B. ^{[1
,2
]}

Silvus, A. ^{[1
,8
]}

Lomsadze, R. ^{[3
]}

Hasan, A. ^{[4
]}

Igarashi, A. ^{[5
]}

Schulz, M. ^{[1
]}

机构：

[1] Missouri Univ Sci & Technol, Phys Dept, Rolla, MO 65409 USA

[2] Eckerd Coll, Nat Sci Coll, 4200 54th Ave S, St Petersburg, FL 33711 USA

[3] Tbilisi State Univ, Dept Exact & Nat Sci, Tbilisi 0179, Georgia

[4] UAE Univ, Dept Phys, POB 15551, Abu Dhabi, U Arab Emirates

[5] Univ Miyazaki, Fac Engn, Miyazaki 8892192, Japan

[6] Mercer Univ, Dept Phys, Macon, GA 31204 USA

[7] Univ Calif Riverside, Phys Dept, Riverside, CA 92521 USA

[8] Washington Univ, Dept Radiat Oncol, St Louis, MO 63110 USA

来源：

PHYSICAL REVIEW A | 2024年 / 109卷 / 01期

基金：

美国国家科学基金会;

关键词：

IONIZATION;

D O I：

10.1103/PhysRevA.109.012821

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have measured and calculated fully differential cross sections (FDCS) for dissociative capture in 75-keV p + H2 collisions. FDCS were analyzed in the kinetic energy release (KER) ranges 0 to 2.1 eV and 4 to 7 eV for two different molecular orientations. In the latter range, dissociation is dominated by electronic excitation to the 2p pi u state. Here, we observed two-center interference for an orientation in the plane perpendicular to the initial beam axis and parallel to the transverse momentum transfer. The interference pattern is afflicted with a constant phase shift of pi. In the range KER = 0 to 2.1 eV, dissociation is dominated by vibrational excitation. Here, we observed structures in the KER dependence, which we interpret as interference between two different paths of the molecular fragments during the dissociation.

引用

页数：7

共 24 条

[1] Separation of single-and two-center interference in ionization of H2 by proton impact [J].