Deuteron electromagnetic form factors with the light-front approach

Bao-dong Sun; Yu-bing Dong

doi:10.1088/1674-1137/41/1/013102

Chinese Physics C> 2017, Vol. 41> Issue(1) : 013102 DOI: 10.1088/1674-1137/41/1/013102

Deuteron electromagnetic form factors with the light-front approach

Bao-dong Sun ^1,, ,
Yu-bing Dong ^1,2,,

1.
Institute of High Energy Physics, Beijing 100049, China
2.
Institute of High Energy Physics, Beijing 100049, China
3.
Theoretical Physics Center for Science Facilities(TPCSF), CAS, Beijing 100049, China

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Abstract：
The electromagnetic form factors and low-energy observables of the deuteron are studied with the help of the light-front approach, where the deuteron is regarded as a weakly bound state of a proton and a neutron. Both the S and D wave interacting vertexes among the deuteron, proton, and neutron are taken into account. Moreover, the regularization functions are also introduced. In our calculations, the vertex and the regularization functions are employed to simulate the momentum distribution inside the deuteron. Our numerical results show that the light-front approach can roughly reproduce the deuteron electromagnetic form factors, like charge G₀, magnetic G₁, and quadrupole G₂, in the low Q² region. The important effect of the D wave vertex on G₂ is also addressed.
- deuteron ,
- form factor ,
- light-front approach

References

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Bao-dong Sun and Yu-bing Dong. Deuteron electromagnetic form factors with the light-front approach[J]. Chinese Physics C, 2017, 41(1): 013102. doi: 10.1088/1674-1137/41/1/013102

Bao-dong Sun and Yu-bing Dong. Deuteron electromagnetic form factors with the light-front approach[J]. Chinese Physics C, 2017, 41(1): 013102. doi: 10.1088/1674-1137/41/1/013102 shu

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Received: 2016-05-11
Revised: 2016-09-28

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Supported by National Natural Science Foundation of China (10975146, 11475192), The fund provided by the Sino-German CRC 110 Symmetries and the Emergence of Structure in QCD project is also appreciated, YBD thanks FAPESP grant 2011/11973-4 for funding his visit to ICTP-SAIFR

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Deuteron electromagnetic form factors with the light-front approach

Corresponding author: Bao-dong Sun,

Corresponding author: Yu-bing Dong,

1. Institute of High Energy Physics, Beijing 100049, China

2. Institute of High Energy Physics, Beijing 100049, China

3. Theoretical Physics Center for Science Facilities(TPCSF), CAS, Beijing 100049, China

Received Date: 2016-05-11

Accepted Date: 2016-09-28

Available Online: 2017-01-05

Fund Project: Supported by National Natural Science Foundation of China (10975146, 11475192), The fund provided by the Sino-German CRC 110 Symmetries and the Emergence of Structure in QCD project is also appreciated, YBD thanks FAPESP grant 2011/11973-4 for funding his visit to ICTP-SAIFR

Abstract: The electromagnetic form factors and low-energy observables of the deuteron are studied with the help of the light-front approach, where the deuteron is regarded as a weakly bound state of a proton and a neutron. Both the S and D wave interacting vertexes among the deuteron, proton, and neutron are taken into account. Moreover, the regularization functions are also introduced. In our calculations, the vertex and the regularization functions are employed to simulate the momentum distribution inside the deuteron. Our numerical results show that the light-front approach can roughly reproduce the deuteron electromagnetic form factors, like charge G₀, magnetic G₁, and quadrupole G₂, in the low Q² region. The important effect of the D wave vertex on G₂ is also addressed.

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Deuteron electromagnetic form factors with the light-front approach

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