This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1088/0253-6102/71/11/1309 in citations.
Please use the identifier: http://hdl.handle.net/2128/24213 in citations.
A Study on the Correlation Between Poles and Cuts in ππ Scattering
A Study on the Correlation Between Poles and Cuts in ππ Scattering
In this paper we propose a dispersive method to describe two-body scattering with unitarity imposed. This approach is applied to elastic ππ scattering. The amplitudes keep single-channel unitarity and describe the experimental data well, and the low-energy amplitudes are consistent with that of chir...
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Personal Name(s): | Dai, Ling-Yun |
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Kang, Xian-Wei / Luo, Tao / Meißner, Ulf-G. (Corresponding author) | |
Contributing Institute: |
Theorie der Starken Wechselwirkung; IAS-4 Theorie der starken Wechselwirkung; IKP-3 |
Published in: | Communications in theoretical physics, 71 (2019) 11, S. 1309 - |
Imprint: |
Beijing
Inst. of Theoretical Physics
2019
|
DOI: |
10.1088/0253-6102/71/11/1309 |
Document Type: |
Journal Article |
Research Program: |
Computational Science and Mathematical Methods |
Link: |
Restricted Published on 2019-05-31. Available in OpenAccess from 2020-05-31. Restricted Published on 2019-05-31. Available in OpenAccess from 2020-05-31. |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/24213 in citations.
In this paper we propose a dispersive method to describe two-body scattering with unitarity imposed. This approach is applied to elastic ππ scattering. The amplitudes keep single-channel unitarity and describe the experimental data well, and the low-energy amplitudes are consistent with that of chiral perturbation theory. The pole locations of the σ, f 0(980), ρ(770) and f 2(1270) and their couplings to ππ are obtained. A virtual state appearing in the isospin-two S-wave is confirmed. The correlations between the left (and right) hand cut and the poles are discussed. Our results show that the poles are more sensitive to the right hand cut rather than the left hand cut. The proposed method could be used to study other two-body scattering processes. |