Massive Delta-resonance admixed hypernuclear stars with antikaon condensations

doi:10.1103/PhysRevD.103.063004

	Massive Delta-resonance admixed hypernuclear stars with antikaon condensations
	Thapa, Vivek Baruah 4; Sinha, Monika 4; Li, Jia Jie 2,3,6; Sedrakian, Armen 1,5
刊名	PHYSICAL REVIEW D
	2021-03-03
卷号	103 期号:6 页码:13
ISSN号	2470-0010
DOI	10.1103/PhysRevD.103.063004
通讯作者	Thapa, Vivek Baruah(thapa.1@iitj.ac.in)
英文摘要	In this work, we study the effect of (anti)kaon condensation on the properties of compact stars that develop hypernuclear cores with and without an admixture of Delta-resonances. We work within the covariant density functional theory with the parameters adjusted to K-atomic and kaon-nucleon scattering data in the kaonic sector. The density-dependent parameters in the hyperonic sector are adjusted to the data on Lambda and Xi(-) hypernuclei data. The Delta-resonance couplings are tuned to the data obtained from their scattering off nuclei and heavy-ion collision experiments. We find that (anti)kaon condensate leads to a softening of the equation of state and lower maximum masses of compact stars than in the absence of the condensate. Both the K- and (K-0) over bar condensations occur through a second-order phase transition, which implies no mixed-phase formation. For large values of (anti)kaon and Delta-resonance potentials in symmetric nuclear matter, we observe that condensation leads to an extinction of Xi(-,0) hyperons. We also investigate the influence of inclusion of additional hidden-strangeness sigma(*) meson in the functional and find that it leads to a substantial softening of the equation of state and delay in the onset of (anti)kaons.
资助项目	Science and Engineering Research Board, Department of Science and Technology, Government of India[EMR/2016/006577] ; Ministry of Education, Government of India ; A. von Humboldt Foundation ; Deutsche Forschungsgemeinschaft[SE 1836/51] ; European COST Action PHAROS The multi-messenger physics and astrophysics of neutron stars[CA16214]
WOS关键词	EQUATION-OF-STATE ; DENSE MATTER ; NEUTRON-STARS ; NUCLEAR ; SCATTERING ; HYPERONS ; ISOBARS ; LAMBDA ; MASSES
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000627575800001
资助机构	Science and Engineering Research Board, Department of Science and Technology, Government of India ; Ministry of Education, Government of India ; A. von Humboldt Foundation ; Deutsche Forschungsgemeinschaft ; European COST Action PHAROS The multi-messenger physics and astrophysics of neutron stars
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/137730]
专题	中国科学院近代物理研究所
通讯作者	Thapa, Vivek Baruah
作者单位	1.Frankfurt Inst Adv Studies, Ruth Moufang Str 1, D-60438 Frankfurt, Germany 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Southwest Univ, Sch Phys Sci & Technol, Chongqing 400700, Peoples R China 4.Hidian Inst Technol Jodhpur, Jodhpur 342037, Rajasthan, India 5.Univ Wroclaw, Inst Theoret Phys, Pl M Borna 9, PL-50204 Wroclaw, Poland 6.Goethe Univ, Inst Theoret Phys, Max Laue St 1, D-60438 Frankfurt, Germany
推荐引用方式 GB/T 7714	Thapa, Vivek Baruah,Sinha, Monika,Li, Jia Jie,et al. Massive Delta-resonance admixed hypernuclear stars with antikaon condensations[J]. PHYSICAL REVIEW D,2021,103(6):13.
APA	Thapa, Vivek Baruah,Sinha, Monika,Li, Jia Jie,&Sedrakian, Armen.(2021).Massive Delta-resonance admixed hypernuclear stars with antikaon condensations.PHYSICAL REVIEW D,103(6),13.
MLA	Thapa, Vivek Baruah,et al."Massive Delta-resonance admixed hypernuclear stars with antikaon condensations".PHYSICAL REVIEW D 103.6(2021):13.