A significant feature in the total cross section for positron-helium scattering at the positronium formation threshold

被引：0

作者：

Van Reeth, P ^{[1
]}

Humberston, JW ^{[1
]}

机构：

[1] Univ London Univ Coll, Dept Phys & Astron, London WC1E 6BT, England

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1999年 / 32卷 / 05期

关键词：

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Detailed theoretical investigations of e(+)-He scattering reveal a significant step-like rise in the total cross section at the positronium formation threshold. This feature arises from the threshold behaviour of the s-wave contribution to the positronium formation cross section and its magnitude and extent are such that it may be possible to detect it experimentally in the near future.

引用

页码：L103 / L106

页数：4

共 50 条

[21] Positron-helium scattering: Resonance and differential cross sections
Chaudhuri, P
Adhikari, SK
NUCLEAR PHYSICS A, 1998, 631 : 715C - 719C
[22] EXPERIMENTAL-DETERMINATION OF TOTAL SCATTERING CROSS-SECTIONS FOR POSITRON-HELIUM COLLISIONS
BRENTON, AG
DUTTON, J
HARRIS, FM
JONES, RA
LEWIS, DM
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1977, 10 (13) : 2699 - 2710
[23] POSITRON-HELIUM SCATTERING LENGTH
MOUSSA, AH
RADI, HMA
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1974, 7 (12) : 1562 - 1566
[24] PARTITIONING OF THE POSITRON HELIUM TOTAL SCATTERING CROSS-SECTION
CAMPEANU, RI
FROMME, D
KRUSE, G
MCEACHRAN, RP
PARCELL, LA
RAITH, W
SINAPIUS, G
STAUFFER, AD
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1987, 20 (14) : 3557 - 3570
[25] Positron-helium collisions: Positronium formation using the distorted-wave approximation
Sen, Subhrangsu
Mandal, Puspajit
PHYSICAL REVIEW A, 2009, 80 (06):
[26] POSITRON-HELIUM SCATTERING CROSS-SECTIONS AT LOW ENERGIES
BURCIAGA, JR
COLEMAN, PG
DIANA, LM
MCNUTT, JD
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1977, 10 (15) : L569 - L572
[27] Positron-helium scattering at medium energies
Adhikari, SK
Ghosh, AS
CHEMICAL PHYSICS LETTERS, 1996, 262 (3-4) : 460 - 464
[28] Elastic and inelastic positron-helium scattering
Cheng Yong-Jun
Zhou Ya-Jun
CHINESE PHYSICS B, 2010, 19 (06)
[29] POSITRON-HELIUM ELASTIC-SCATTERING
PAI, M
HEWSON, P
VOGT, E
SCHRADER, DM
PHYSICS LETTERS A, 1976, 56 (03) : 169 - 172
[30] High-resolution positron scattering from helium: Grand total and positronium-formation cross sections
Caradonna, P.
Jones, A.
Makochekanwa, C.
Slaughter, D. S.
Sullivan, J. P.
Buckman, S. J.
Bray, I.
Fursa, D. V.
PHYSICAL REVIEW A, 2009, 80 (03):

← 1 2 3 4 5 →