EMPIRICAL N/D POTENTIAL AND CASTILLEJO-DALITZ-DYSON POLES IN PION-NUCLEON P11 STATE

被引：9

作者：

BART, GR

WARNOCK, RL

机构：

[1] Illinois Institute of Technology, Chicago

[2] Argonne National Laboratory, Argonne

来源：

PHYSICAL REVIEW LETTERS | 1969年 / 22卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.22.1081

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The CERN phase-shift analysis is used to evaluate the left-cut term of the P11 partial wave of pion-nucleon scattering. The inelastic ND equation is solved with this term and the elasticity η as input. The output and input phase shifts agree below 2 BeV if and only if at least two Castillejo-Dalitz-Dyson poles are included in the canonical D function. This result rules out single-channel bootstrap models and furnishes a constraint on many-channel models. © 1969 The American Physical Society.

引用

页码：1081 / &

共 24 条

[1]

ALY H, 1968, LECTURES THEORETI ED, pCH10

[2] CALCULATION OF P11 PIN PHASE SHIFT USING COUPLED PIN SIGMAN AND EPSILONN CHANNELS [J].