质子滴线核~8B的实验研究进展
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摘要
质子滴线核~8B的最后一个质子的分离能只有0.137 5 MeV,被认为是最有可能具有质子晕结构的候选核之一,对其反应机制和奇特结构的研究吸引了人们的关注。针对~8B的奇特结构和反应机制研究是一个非常有趣的课题,研究人员在包括反应截面、碎裂产物动量分布宽度、电四极矩、熔合截面及弹性散射等方面开展了大量的工作。但是~8B的研究至今仍不够充分,需要从理论和实验上对其进行更深入的研究。
The proton dripline nucleus ~8B, with a proton separation energy of 0.137 5 MeV, is an archetypal proton halo candidate. The structure and mechanisms of reactions induced by this nucleus have received much attention from the experimental points of view. We review on the previous studies with measurements of reaction cross sections, longitudinal momentum distributions of fragments, electric quadruple moment, fusion cross sections, and elastic scattering angular distributions. More efforts, from both experimental and theoretical points of view, are needed to understand the nucleus ~8B.
The proton dripline nucleus ~8B, with a proton separation energy of 0.137 5 MeV, is an archetypal proton halo candidate. The structure and mechanisms of reactions induced by this nucleus have received much attention from the experimental points of view. We review on the previous studies with measurements of reaction cross sections, longitudinal momentum distributions of fragments, electric quadruple moment, fusion cross sections, and elastic scattering angular distributions. More efforts, from both experimental and theoretical points of view, are needed to understand the nucleus ~8B.
引文
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[3]SHEN Wenqing,ZHAN Wenlong,YE Yanlin,et al.Nucl Phys Rev,2001,18:206.(in Chinese)(沈文庆,詹文龙,叶沿林,等.原子核物理论,2001,18:206.)
[4]CANTO L F,GOMES P R S,DONANGELO R,et al.Phys Rep,2015,596:1.
[5]TANIHATA I,SAVAJOLS H,KANUNGO R.Prog Part Nucl Phys,2013,68:215.
[6]KOLATA J J,GUIMARAES V,AGUILERA E F.Eur Phys J A,2016,52:123.
[7]WANG J S,SHEN W Q,ZHU Z Y,et al.Nucl Phys A,2001,691:618.
[8]CAI Xiangzhou,SHEN Wenqing.Prog in Phys,2001,21:278.(in Chinese)(蔡翔舟,沈文庆.物理学进展,2001,21:278.)
[9]MITTIG W,CHOUVEL J M,ZHAN W L,et al.Phys Rev Lett,1987,59:1889.
[10]SAINT-LAURENT,ANNE R,BAZIN D,et al.Zeitschrift für Physik A,1989,332:457.
[11]TANIHATA I,HAMAGAKI H,HASHIMOTO O,et al.Phys Rev Lett,1985,55:2676.
[12]TANIHATA I,KOBAYASHI T,YAMAKAWA O,et al.Phys Lett B,1988,206:592.
[13]OBUTI M M,KOBAYASHI T,HIRATA D,et al.Nucl Phy A,1996,609:74.
[14]WARNER R E,KELLEY J H,ZECHER P,et al.Phys Rev C,1995,52:R1166.
[15]NEGOITA F,BORCEA C,CARSTOIU F,et al.Phys Rev C,1996,54:1787.
[16]FUKUDA M,MIHARA M,FUKAO T,et al.Nucl Phys A,1999,656:209.
[17]WANG Quanjin,XIAO Guoqing,ZHAN Wenlong.Prog Nat Sci,2002,12:29.(in Chinese)(王全进,肖国青,詹文龙,等.自然科学进展,2002,12:29.)
[18]SCHWAB W,GEISSEL H,LENSKE H,et al.Zeitschrift für Physik A,1995,350:283.
[19]SMEDBERG M H,BAUMANN T,AUMANN T,et al.Phys Lett B,1999,452:1.
[20]JIN S L,WANG J S,YANG Y Y,et al.Phys Rev C,2015,91:054617.
[21]JIN Shilun.Study of8B Breakup Reaction[D].Lanzhou:Institute of Modern Physics,Chinese Academy of Sciences,2015.(in Chinese)(金仕纶.8B碎裂反应实验研究[D].兰州:中国科学院近代物理研究所,2015.)
[22]YANG Yanyun.Development of 8×8 CsI(Tl)Array Detector[D].Lanzhou:Institute of Modern Physics,Chinese Academy of Sciences,2008.(in Chinese)(杨彦云.8×8单元CsI(Tl)阵列探测器的研制[D].兰州:中国科学院近代物理研究所,2008.)
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[25]YAHIRO M,OGATA K,MATSUMOTO T,et al.Prog Theor Exp Phys,2012,1A206:44.
[26]MINAMISONO T,OHTSUBO T,MINAMI T,et al.Phys Rev Lett,1992,69:2058.
[27]SUMIKAMA T,NAGATOMO T,OGURA M,et al.Phys Rev C,2006,74:024327.
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[32]MAZZOCCO M,BOIANO A,BOIANO C,et al.J Phys:Conf Ser,2018 1078:012013.
[33]COMMARA M,MAZZOCCO M,BOIANO A,et al.J Phys:Conf Ser,2018 966:012010.
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[35]AGUILERA E F,KOLATA J J.Phys Rev C,2012,85:014603.
[36]PAKOU A,STILIARIS E,PIERROUTSAKOU D,et al.Phys Rev C,2013,87:014619.
[37]KOLATA J J,AGUILERA E F,GUIMARAES V.Euro Phys Jour Web of Conference,2017,163:00031.
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[39]LEE M Y,BECCHETTI F D,ODONNELL T W,et al.Nucl Instr and Meth A,1999,422:536.
[40]KOROLEV G A,DOBROVOLSKY A V,INGLESSI A G,et al.Phys Lett B,2018,780:200.
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[42]BARIONI A,ZAMORA J C,GUIMARAES,et al.Phys Rev C,2011,84:014603.
[43]MORCELLE V,LICHTENTHALER R,LEPINE-SZILY A,et al.Phys Rev C,2017,95:014615.
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