Is there a bound 3Λn?

被引:46
作者
Gal, Avraham [1 ]
Garcilazo, Humberto [2 ]
机构
[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[2] Inst Politecn Nacl, Escuela Super Fis & Matemat, Mexico City 07738, DF, Mexico
关键词
Faddeev equations; Hypernuclei; P-SHELL HYPERNUCLEI; LIGHT HYPERNUCLEI; BINDING-ENERGIES; LAMBDANN FORCES; SYSTEM; NN;
D O I
10.1016/j.physletb.2014.07.009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The HypHI Collaboration at GSI argued recently for a (3)(Lambda)n (Lambda nn) bound state from the observation of its two-body t + pi(-) weak-decay mode. We derive constraints from several hypernuclear systems, in particular from the A = 4 hypernuclei with full consideration of Lambda N <-> Sigma N coupling, to rule out a bound (3)(Lambda)n. (C) 2014 The Authors. Published by Elsevier B.V.
引用
收藏
页码:93 / 97
页数:5
相关论文
共 25 条
[1]   Coherent Λ-Σ coupling in s-shell hypernuclei [J].
Akaishi, Y ;
Harada, T ;
Shinmura, S ;
Myint, KS .
PHYSICAL REVIEW LETTERS, 2000, 84 (16) :3539-3541
[2]   STUDY OF LAMBDA-N SYSTEM IN LOW-ENERGY LAMBDA-P ELASTIC SCATTERING [J].
ALEXANDER, G ;
KARSHON, U ;
SHAPIRA, A ;
YEKUTIELI, G ;
ENGELMANN, R ;
FILTHUTH, H ;
LUGHOFER, W .
PHYSICAL REVIEW, 1968, 173 (05) :1452-+
[3]   EFFECTS OF 3-BODY LAMBDANN FORCES IN LIGHT HYPERNUCLEI [J].
BHADURI, RK ;
LOISEAU, BA ;
NOGAMI, Y .
ANNALS OF PHYSICS, 1967, 44 (01) :57-&
[4]   BINDING-ENERGIES OF THE S-SHELL HYPERNUCLEI AND THE LAMBDA-WELL DEPTH [J].
BODMER, AR ;
USMANI, QN .
NUCLEAR PHYSICS A, 1988, 477 (04) :621-651
[5]   50 years of hypernuclear physics - I. The early experiments [J].
Davis, DH .
NUCLEAR PHYSICS A, 2005, 754 :3C-13C
[6]   ANALYSIS OF THE LAMBDA-HYPERNUCLEAR 3-BODY SYSTEMS [J].
DOWNS, BW ;
DALITZ, RH .
PHYSICAL REVIEW, 1959, 114 (02) :593-602
[7]   Neutron-rich hypernuclei: Λ6H and beyond [J].
Gal, A. ;
Millener, D. J. .
PHYSICS LETTERS B, 2013, 725 (4-5) :445-450
[8]  
GAL A, 1991, PLOTS, QUARKS & STRANGE PARTICLES, P146
[9]   SHELL-MODEL ANALYSIS OF LAMBDA BINDING ENERGIES FOR P-SHELL HYPERNUCLEI .1. BASIC FORMULAS AND MATRIX ELEMENTS FOR LAMBDAN AND LAMBDANN FORCES [J].
GAL, A ;
SOPER, JM ;
DALITZ, RH .
ANNALS OF PHYSICS, 1971, 63 (01) :53-&
[10]   Λ N N and Σ N N systems at threshold [J].
Garcilazo, H. ;
Fernandez-Carames, T. ;
Valcarce, A. .
PHYSICAL REVIEW C, 2007, 75 (03)