Hunting η-bound nuclei

H. Machner

doi:10.1088/1674-1137/34/9/013

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1218-1223 DOI: 10.1088/1674-1137/34/9/013

Hunting η-bound nuclei

H. Machner ^,

¹ Institut fur Kernphysik, Forschungszentrum Julich, 52428 Julich, Germany² Fakultat fur Physik, Universitat Duisburg-Essen, Lotharstr. 1, 47048 Duisburg

Abstract
HTML
Reference
Related

PDF

Abstract：
The η meson can be bound to atomic nuclei. Experimental search is discussed in the form of final state interaction for the reactions dp→³Heη and dd→⁴Heη. For the latter case tensor polarized deuterons were used in order to extract the s-wave strength. For both reactions complex scattering lengths are deduced: a³Heη=[±(10.7±0.8_－0.5 ^+0.1)+i.(1.5±2.6_－0.9^+1.0)] fm and a⁴Heη=[±(3.1±0.5)+i.(0±0.5)] fm. In a two-nucleon transfer reaction under quasi-free conditions, p²⁷Al→^³HeX, was investigated. The system X can be the bound ²⁵Mg⊙η at rest. When a possible decay of an intermediate N^*(1535) is required, a highly significant bump shows up in the missing mass spectrum. The data give for a bound state a binding energy of 13.3±1.6 MeV and a width of σ=4.4±1.3 MeV.

References

[1]

Bhalerao R S, LIU L C. Phys. Rev. Lett., 1985, 54: 8652 Haider Q, LIU L C. Phys. Lett. B, 1986, 172: 2573 Garcia-Recio C, Inoue T, Nieves J, Oset E. Phys. Lett. B,2002, 550: 474 Hayano R S, Hirenzaki S, Gillitzer A. Eur. Phys. J. A, 1999,6: 995 Tsushima K. Nucl. Phys. A, 2000, 670: 198c6 Chrien R E et al. Phys. Rev. Lett., 1988, 60: 25957 Lieb J B. Proc. International Conf. Nuclear Physics, Sao Paulo, Sao Paulo, Brazil, 19888 Nagahiro H, Jido D, Hirenzaki S. Phys. Rev. C, 2009, 80:0252059 Pfei er M et al. Phys. Rev. Lett., 2004, 92: 25200110 Hanhart C. Phys. Rev. Lett., 2005, 94: 04910111 Haider Q, LIU L C. Phys. Rev. C, 2002, 66: 04520812 So anos S A, Rakityansky S A. arXiv, 1997, nucl-th:970704413 www.fz juelich.de/ikp/gem/14 Migdal A B. JETP, 1955, 1: 215 Watson K M. Phys. Rev., 1952, 88: 116316 Mersmann T et al. Phys. Rev. Lett., 2007, 98: 24230117 Smyrski J et al. Phys. Lett. B, 2007, 649: 25818 Adam H H et al. Phys. Rev. C, 2007, 75: 01400419 Mayer B et al. Phys. Rev. C, 1996, 53: 206820 Budzanowski A et al (The GEM collaboration). Nucl. Phys.A, 2009, 821: 19321 Hagiwara K et al (PDG). Phys. Rev. D, 2002, 66: 01000122 Bojowald H et al. Nucl. Instruments and Meth. in Phys.Res. A, 2002, 487: 31423 Drochner M et al. Nucl. Phys. A, 1998, 643: 5524 Wronska A et al. The European Physical Journal A, 2005,26: 42125 Frascaria R et al. Phys. Rev. C, 1994, 50: R53726 Willis N et al. Phys. Lett. B, 1997, 406: 1427 Ymazaki T et al. Z. Physik A, 1996, 355 21928 Betigeri M et al. Nucl. Instruments and Meth. in Phys. Res.A, 2007, 578: 19829 Frodesen A G, Skjeggstad O, Tfte H. Probability and Statistics in Particle Physics, Universitetsforlaget Bergen-Oslo-Troms, 197930 Christov R et al. Phys. Rev. Lett., 2006, 97: 162001

[1]	Li Ma;Qian Wang;Ulf-G. Mei{\ss}ner . Double heavy tri-hadron bound state via delocalized $\pi$ bond. Chinese Physics C, 2019, df87c41e-622f-49a7-b081-5c584df157aa(11): 14102-.
[2]	D. Bazeia;A. Mohammadi;D. C. Moreira . Fermion bound states in geometrically deformed backgrounds. Chinese Physics C, 2019, df87c41e-622f-49a7-b081-5c584df157aa(11): 13101-.
[3]	George Rupp , Eef van Beveren . Why static bound-state calculations of tetraquarks should be met with scepticism. Chinese Physics C, 2017, 41(5): 053104. doi: 10.1088/1674-1137/41/5/053104
[4]	Yi Jin , Shi-Yuan Li , Yan-Rui Liu , Lu Meng , Zong-Guo Si , Xiao-Feng Zhang . Exotic hadron bound state production at hadron colliders. Chinese Physics C, 2017, 41(8): 083106. doi: 10.1088/1674-1137/41/8/083106
[5]	E. T. Li , B. Guo , Z. H. Li , Y. B. Wang , Y. J. Li , Z. D. Wu , J. Su . Radii of the bound states in ¹⁶N from the asymptotic normalization coefficients. Chinese Physics C, 2016, 40(11): 114104. doi: 10.1088/1674-1137/40/11/114104
[6]	Xue-Yu Xiong , Jun-Chen Pei , Yi-Nu Zhang , Yi Zhu . Study of weakly-bound odd-A nuclei with quasiparticle blocking. Chinese Physics C, 2016, 40(2): 024101. doi: 10.1088/1674-1137/40/2/024101
[7]	MA Wei-Hu , WANG Jian-Song , WANG Qi , YANG Lei , YANG Yan-Yun , HUANG Mei-Rong . Fractal geometrical properties of nuclei. Chinese Physics C, 2015, 39(10): 104101. doi: 10.1088/1674-1137/39/10/104101
[8]	S. A. Seyyedi , H. Golnarkar . Nuclear matter incompressibility effect on the cross-section offusion reactions with a weakly bound projectile. Chinese Physics C, 2015, 39(8): 084103. doi: 10.1088/1674-1137/39/8/084103
[9]	A. A. Rajabi . Bound Dirac states for pseudoscalar Cornell potential：3+1 dimensions. Chinese Physics C, 2013, 37(10): 103102. doi: 10.1088/1674-1137/37/10/103102
[10]	L. B. Weinstein . Short range correlations in nuclei. Chinese Physics C, 2010, 34(9): 1224-1228. doi: 10.1088/1674-1137/34/9/014
[11]	G. Eichmann , A. Krassnigg , D. Nicmorus . Hadron properties from QCD bound-state equations: A status report. Chinese Physics C, 2010, 34(9): 1175-1180.
[12]	WANG Teng-Teng . η-nucleus bound states in nuclei. Chinese Physics C, 2010, 34(4): 460-464. doi: 10.1088/1674-1137/34/4/008
[13]	DONG Tie-Kuang , REN Zhong-Zhou , XU Chang . Research on some superheavy nuclei. Chinese Physics C, 2009, 33(S1): 5-8. doi: 10.1088/1674-1137/33/S1/002
[14]	CHEN Yong-Shou , GAO Zao-Chun . Triaxial rotation in atomic nuclei. Chinese Physics C, 2009, 33(S1): 1-4. doi: 10.1088/1674-1137/33/S1/001
[15]	ZHANG Wei-Ning , . Stable solutions for qq bound states with a regularized Breit potential. Chinese Physics C, 2009, 33(8): 648-654. doi: 10.1088/1674-1137/33/8/010
[16]	E. Oset , J. Vijande . An explanation of the Δ_D35(1930) as a ρΔ bound state. Chinese Physics C, 2009, 33(12): 1267-1272. doi: 10.1088/1674-1137/33/12/036
[17]	LI Yi-He , WU Shi-Shu . Deeply bound kaonic states in nuclei. Chinese Physics C, 2009, 33(S1): 76-78. doi: 10.1088/1674-1137/33/S1/025
[18]	Chen Lin , Jiang Huanqing . Inclusive (π,η)Reactions on Nuclei. Chinese Physics C, 1994, 18(S2): 207-213.
[19]	Jiang Huangqing , Zhang Weifeng . η_c-Nuclear Bound States. Chinese Physics C, 1993, 17(S3): 297-301.
[20]	Liu Jifeng , Shen Jianping , Li Guanglie . The Possibility of Forming Bound State of η-Mesic Nucleus. Chinese Physics C, 1991, 15(S1): 43-50.

Access

Get Citation

H. Machner. Hunting η-bound nuclei[J]. Chinese Physics C, 2010, 34(9): 1218-1223. doi: 10.1088/1674-1137/34/9/013

H. Machner. Hunting η-bound nuclei[J]. Chinese Physics C, 2010, 34(9): 1218-1223. doi: 10.1088/1674-1137/34/9/013 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2010-03-04
Revised: 1900-01-01

Article Metric

Article Views(1349)
PDF Downloads(396)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Hunting η-bound nuclei

Corresponding author: H. Machner,

¹ Institut fur Kernphysik, Forschungszentrum Julich, 52428 Julich, Germany² Fakultat fur Physik, Universitat Duisburg-Essen, Lotharstr. 1, 47048 Duisburg

Received Date: 2010-03-04

Accepted Date: 1900-01-01

Available Online: 2010-09-05

Abstract:

The η meson can be bound to atomic nuclei. Experimental search is discussed in the form of final state interaction for the reactions dp→³Heη and dd→⁴Heη. For the latter case tensor polarized deuterons were used in order to extract the s-wave strength. For both reactions complex scattering lengths are deduced: a³Heη=[±(10.7±0.8_－0.5 ^+0.1)+i.(1.5±2.6_－0.9^+1.0)] fm and a⁴Heη=[±(3.1±0.5)+i.(0±0.5)] fm. In a two-nucleon transfer reaction under quasi-free conditions, p²⁷Al→^³HeX, was investigated. The system X can be the bound ²⁵Mg⊙η at rest. When a possible decay of an intermediate N^*(1535) is required, a highly significant bump shows up in the missing mass spectrum. The data give for a bound state a binding energy of 13.3±1.6 MeV and a width of σ=4.4±1.3 MeV.

HTML

Reference (1)

Hunting η-bound nuclei

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article