INVESTIGATION OF THE NUCLEAR SHADOWING EFFECT IN THE SMALL x REGION

ZHONG Cha-Sheng; SHEN Hong-Qing; SHEN Jian-Ping; LI Guang-Lie

Chinese Physics C> 1990, Vol. 14> Issue(2) : 156-159

INVESTIGATION OF THE NUCLEAR SHADOWING EFFECT IN THE SMALL x REGION

Nanjing Normal University1 Institute of High Energy Physics,Academia Sinica,Beijing

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Abstract：
In this paper,we analyse the spatial overlapping behavior of sea quarks of neighboring nucleons in nuclei in the small x region and give a relation between the nuclear shadowing factor R(x,Q²,A) and the spatial overlapping factor ΔV_A(x)/V_A(x).By using this nuclear shadowing factor R(x,Q²,A),we calculate the ratios of the average nuclear structure functions of nuclei ¹²C、⁶³Cu and ¹¹⁶Sn,to the deuteron structure function and obtais a better agreement between the calculated result and the experimental data.

References

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J.Ashman et al., Phys. Lett., B202 (1988), 603.[2] S.J. Brodsky, F. E. Close and J. F. Gunion, Phys. Rev., D6(1972), 177[3] F.E. Close and R. G. Roberts, Preprint, RAL-88-p58.[4] A.H.Mueller and J. Qiu,Nucl. Phys., B268(1986), 427; J. Qiu, Nucl. Phys., B291(1987), 746;E.L.Berqer and J. Qiu,Phys. Lett., B206(1988), 141[5] C. W. de Jaeger et al., Az Data Nucl. Data Tables., 14(1974), 476.[6] W. B. Atwood and G. B. West, Phys. Rev，D7(1973), 773; L. L. Frankfurt and M.I.Strikman, Phys. Lett., 76B (1978), 333.[7] D. W. Duke and J. E. Owens, Phys. Rev., D30(1984), 49

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ZHONG Cha-Sheng, SHEN Hong-Qing, SHEN Jian-Ping and LI Guang-Lie. INVESTIGATION OF THE NUCLEAR SHADOWING EFFECT IN THE SMALL x REGION[J]. Chinese Physics C, 1990, 14(2): 156-159.

ZHONG Cha-Sheng, SHEN Hong-Qing, SHEN Jian-Ping and LI Guang-Lie. INVESTIGATION OF THE NUCLEAR SHADOWING EFFECT IN THE SMALL x REGION[J]. Chinese Physics C, 1990, 14(2): 156-159. shu

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Received: 1900-01-01
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

INVESTIGATION OF THE NUCLEAR SHADOWING EFFECT IN THE SMALL x REGION

Corresponding author: ZHONG Cha-Sheng,

Nanjing Normal University1 Institute of High Energy Physics,Academia Sinica,Beijing

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1990-02-05

Abstract: In this paper,we analyse the spatial overlapping behavior of sea quarks of neighboring nucleons in nuclei in the small x region and give a relation between the nuclear shadowing factor R(x,Q²,A) and the spatial overlapping factor ΔV_A(x)/V_A(x).By using this nuclear shadowing factor R(x,Q²,A),we calculate the ratios of the average nuclear structure functions of nuclei ¹²C、⁶³Cu and ¹¹⁶Sn,to the deuteron structure function and obtais a better agreement between the calculated result and the experimental data.