Investigation of large alpha production in reactions involving weakly bound Li-7

Pandit S. K.; Shrivastava A.; Mahata K.; Parkar V. V.; Palit R.; Keeley N.; Rout P. C.; Kumar A.; Ramachandran K.; Bhattacharyya S.; Nanal V.; Palshetkar C. S.; Nag T. N.; Gupta Shilpi; Biswas S.; Saha S.; Sethi J.; Singh P.; Chatterjee A.; Kailas S.

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Investigation of large alpha production in reactions involving weakly bound Li-7

机译：涉及弱束缚Li-7反应大型α生产的调查

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The origin of the large alpha-particle production cross sections in systems involving weakly bound Li-7 projectiles has been investigated by measuring the cross sections of all possible fragment-capture as well as complete fusion using the particle-gamma coincidence, in-beam, and off-beam gamma-ray counting techniques for the Li-7 + Nb-93 system at near Coulomb barrier energies. Almost all of the inclusive alpha-particle yield has been accounted for. While the t-capture mechanism is found to be dominant (similar to 70%), compound nuclear evaporation and breakup processes contribute similar to 15% each to the inclusive alpha-particle production in the measured energy range. Systematic behavior of the t capture and inclusive alpha cross sections for reactions involving Li-7 over a wide mass range is also reported.

机译：在弱束缚Li-7弹丸系统中，通过在近库仑势垒能量下测量Li-7+Nb-93系统的粒子伽马符合、束内和束外伽马射线计数技术，测量所有可能碎片捕获和完全融合的截面，研究了大α粒子产生截面的起源。几乎所有包含阿尔法粒子的产量都已计算在内。虽然发现t俘获机制占主导地位（类似于70%），但在测量能量范围内，复合核蒸发和破裂过程对包容性α粒子产生的贡献各为15%。还报告了涉及Li-7的反应在宽质量范围内的t俘获和包容性α截面的系统行为。

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来源
《Physical review, C》 |2017年第4期|共6页
作者
Pandit S. K.; Shrivastava A.; Mahata K.; Parkar V. V.; Palit R.; Keeley N.; Rout P. C.; Kumar A.; Ramachandran K.; Bhattacharyya S.; Nanal V.; Palshetkar C. S.; Nag T. N.; Gupta Shilpi; Biswas S.; Saha S.; Sethi J.; Singh P.; Chatterjee A.; Kailas S.;
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Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

Tata Inst Fundamental Res Dept Nucl &

Atom Phys Bombay 400005 Maharashtra India;

Natl Ctr Nucl Res Ul Andrzeja Soltana 7 PL-05400 Otwock Poland;

Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

Variable Energy Cyclotron Ctr Kolkata 700064 India;

Tata Inst Fundamental Res Dept Nucl &

Atom Phys Bombay 400005 Maharashtra India;

Tata Inst Fundamental Res Dept Nucl &

Atom Phys Bombay 400005 Maharashtra India;

Bhabha Atom Res Ctr Radiochem Div Bombay 400085 Maharashtra India;

Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

Tata Inst Fundamental Res Dept Nucl &

Atom Phys Bombay 400005 Maharashtra India;

Tata Inst Fundamental Res Dept Nucl &

Atom Phys Bombay 400005 Maharashtra India;

Tata Inst Fundamental Res Dept Nucl &

Atom Phys Bombay 400005 Maharashtra India;

Tata Inst Fundamental Res Dept Nucl &

Atom Phys Bombay 400005 Maharashtra India;

Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

Bhabha Atom Res Ctr Nucl Phys Div Bombay 400085 Maharashtra India;

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正文语种 eng
中图分类原子核物理学、高能物理学;
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Investigation of large alpha production in reactions involving weakly bound Li-7

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