FINE-STRUCTURE IN THE ELASTIC AND INELASTIC-SCATTERING OF C-12+SI-28 AND O-16+SI-28

被引：51

作者：

BARRETTE, J ^{[1
]}

LEVINE, MJ ^{[1
]}

BRAUNMUNZINGER, P ^{[1
]}

BERKOWITZ, GM ^{[1
]}

GAI, M ^{[1
]}

HARRIS, JW ^{[1
]}

JACHCINSKI, CM ^{[1
]}

UHLHORN, CD ^{[1
]}

机构：

[1] SUNY STONY BROOK, DEPT PHYS, STONY BROOK, NY 11794 USA

来源：

PHYSICAL REVIEW C | 1979年 / 20卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.20.1759

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The θc.m.=180A° elastic and inelastic excitation functions have been measured for the systems C12 + Si28 (27.8≤Ec.m.≤31.5 MeV) and O16 + Si28 (30.0≤Ec.m.≤32.7 MeV) in small steps (δEc.m.100 keV). In both systems it is observed that the gross structures previously found (ΓA1-2 MeV) are strongly split into finer structure. A statistical analysis of the data has been made to determine the average width, strength, and cross correlation of these narrow structures. The results are compared to the predictions of Hauser-Feshbach calculations. It is concluded that it is impossible within the standard statistical model to simultaneously reproduce both the observed widths and the average fluctuating cross sections. NUCLEAR REACTIONS Measured elastic and inelastic excitation functions at θc.m.=180A° for C12+Si28, 27.8Ec.m.31.5 MeV, and O16+Si28, 30.0Ec.m.32.7 MeV. Deduced average width, strength, and cross correlation of observed structures. Compared with Hauser-Feshbach predictions. © 1979 The American Physical Society.

引用

页码：1759 / 1767

页数：9

共 48 条

[31] ENTRANCE-CHANNEL RESONANCE EFFECTS IN THE 24-MG+O-16 REACTION [J].

LEE, SM ;

ADLOFF, JC ;

CHEVALLIER, P ;

DISDIER, D ;

RAUCH, V ;

SCHEIBLING, F .

PHYSICAL REVIEW LETTERS, 1979, 42 (07) :429-432

[32]

MAHER JV, 1969, PHYS REV, V188, P1665, DOI 10.1103/PhysRev.188.1665

[33] BAND CROSSING MODEL OF RESONANCES IN HEAVY-ION REACTIONS .1. RESONANCES IN C-12-O-16 SCATTERING [J].

MATSUSE, T ;

ABE, Y ;

KONDO, Y .

PROGRESS OF THEORETICAL PHYSICS, 1978, 59 (06) :1904-1921

[34] STATISTICAL THEORY OF NUCLEAR COLLISION CROSS SECTIONS [J].

MOLDAUER, PA .

PHYSICAL REVIEW B, 1964, 135 (3B) :B642-&

[35]

MOLDAUER PA, 1975, PHYS REV C, V11, P436

[36]

MOSEL U, 1978, INT C NUCLEAR INTERA

[37] RESONANT HEAVY-ION ELASTIC-SCATTERING FROM S-D SHELL NUCLEI [J].

OST, R ;

CLOVER, MR ;

DEVRIES, RM ;

FULTON, BR ;

GOVE, HE ;

RUST, NJ .

PHYSICAL REVIEW C, 1979, 19 (03) :740-746

[38] STATISTICAL FLUCTUATIONS AND INTERMEDIATE STRUCTURES IN NUCLEAR REACTION CROSS SECTIONS [J].

PAPPALARDO, G .

PHYSICS LETTERS, 1964, 13 (04) :320-322

[39] OPTICAL-MODEL ANALYSIS OF PROTON ELASTIC SCATTERING IN RANGE OF 9 TO 22 MEV [J].

PEREY, FG .

PHYSICAL REVIEW, 1963, 131 (02) :745-&

[40] ELASTIC-SCATTERING EXCITATION-FUNCTIONS FOR C-12+C-12 SYSTEM [J].

REILLY, W ;

WIELAND, R ;

GOBBI, A ;

SACHS, MW ;

MAHER, J ;

SIEMSSEN, RH ;

MINGAY, D ;

BROMLEY, DA .

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1973, A 13 (04) :913-922

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