Contribution of Sigma Meson Cloud to Proton's Antiquark Distribution

HUANG Feng; XU Rong-Guang; MA Bo-Qiang

Chinese Physics C> 2005, Vol. 29> Issue(1) : 9-13

Contribution of Sigma Meson Cloud to Proton's Antiquark Distribution

School of Physics,Peking University,Beijing 100871,China

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Abstract：
The lightest meson π in meson cloud model gave a natural explanation for the observed large light flavor sea asymmetry in proton,but not a satisfied explanation for (x)/(x). here we take into account the σ meson cloud effect,which gives a better description of the data. meanwhile,our calculation implies a reasonable smaller probability of finding a physical proton in the fock state |Nω〉 with a smaller value of Λ ω.

References

[1]

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HUANG Feng, XU Rong-Guang and MA Bo-Qiang. Contribution of Sigma Meson Cloud to Proton's Antiquark Distribution[J]. Chinese Physics C, 2005, 29(1): 9-13.

HUANG Feng, XU Rong-Guang and MA Bo-Qiang. Contribution of Sigma Meson Cloud to Proton's Antiquark Distribution[J]. Chinese Physics C, 2005, 29(1): 9-13. shu

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Received: 2004-06-24
Revised: 2004-07-15

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Contribution of Sigma Meson Cloud to Proton's Antiquark Distribution

Corresponding author: MA Bo-Qiang,

School of Physics,Peking University,Beijing 100871,China

Received Date: 2004-06-24

Accepted Date: 2004-07-15

Available Online: 2005-01-05

Abstract: The lightest meson π in meson cloud model gave a natural explanation for the observed large light flavor sea asymmetry in proton,but not a satisfied explanation for (x)/(x). here we take into account the σ meson cloud effect,which gives a better description of the data. meanwhile,our calculation implies a reasonable smaller probability of finding a physical proton in the fock state |Nω〉 with a smaller value of Λ ω.

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Contribution of Sigma Meson Cloud to Proton's Antiquark Distribution

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