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Table 1.

Nuclear matter and neutron star properties for different models.

Quantity Without PREX-II With PREX-II
NL NL-σ cut NL DM NL NL-σ cut NL DM
Med. CI Med. CI Med. CI Med. CI Med. CI Med. CI
m* 0.73 [0.69, 0.78] 0.77 [0.73, 0.79] 0.74 [0.71, 0.78] 0.73 [0.69, 0.78] 0.76 [0.72, 0.78] 0.75 [0.72, 0.78]
ρ0 0.160 [0.155, 0.165] 0.160 [0.155, 0.165] 0.161 [0.155, 0.165] 0.160 [0.155, 0.165] 0.160 [0.155, 0.165] 0.161 [0.156, 0.165]
ϵ0 −15.99 [−16.03, −15.96] −15.99 [−16.03, −15.96] −16.00 [−16.03, −15.97] −15.99 [−16.03, −15.96] −16.00 [−16.03, −15.96] −16.00 [−16.03, −15.97]
K0 239 [215, 263] 240 [222, 259] 243 [227, 265] 238 [212, 262] 236 [216, 257] 244 [230, 266]
Q0 −472 [−541, −401] −522 [−592, −466] −467 [−521, −404] −483 [−563, −415] −537 [−612, −468] −475 [−524, −414]
Z0 2465 [1406, 3718] 2060 [1400, 2648] 2221 [1436, 2973] 2395 [1389, 3742] 2181 [1445, 2977] 2119 [1306, 2788]
Jsym, 0 32 [29, 36] 32 [29, 36] 32 [30, 36] 38 [36, 39] 38 [36, 39] 38 [37, 40]
Lsym, 0 54 [38, 86] 54 [38, 87] 54 [37, 90] 106 [97, 112] 104 [96, 110] 105 [97, 111]
Ksym, 0 −133 [−175, −69] −158 [−183, −87] −144 [−176, −76] −11 [−57, 18] −20 [−70, 2] −17 [−64, 8]
Qsym, 0 1004 [50, 1294] 866 [1, 1270] 965 [2, 1297] 17 [−48, 65] 8 [−47, 49] 7 [−54, 54]
Zsym, 0 −2926 [−10616, 1519] −1227 [−8971, 1723] −2272 [−10276, 1649] −600 [−895, −22] −515 [−704, 176] −567 [−759, −2]
Mmax 2.014 [1.893, 2.152] 2.055 [1.931, 2.163] 1.981 [1.876, 2.095] 2.003 [1.881, 2.131] 2.087 [1.960, 2.201] 1.975 [1.868, 2.079]
Rmax 10.65 [10.19, 11.02] 11.12 [10.48, 11.47] 10.52 [10.16, 10.82] 11.00 [10.65, 11.31] 11.62 [10.93, 11.96] 10.89 [10.59, 11.15]
R1.4 12.18 [11.77, 12.68] 12.29 [11.81, 12.85] 12.09 [11.74, 12.65] 13.15 [12.84, 13.40] 13.20 [12.83, 13.47] 13.10 [12.79, 13.35]
R1.6 12.03 [11.57, 12.47] 12.25 [11.68, 12.74] 11.91 [11.53, 12.38] 12.82 [12.43, 13.13] 13.04 [12.54, 13.37] 12.74 [12.37, 13.04]
R1.8 11.75 [11.11, 12.24] 12.11 [11.38, 12.58] 11.59 [11.07, 12.04] 12.35 [11.73, 12.79] 12.81 [12.09, 13.22] 12.22 [11.65, 12.64]
R2.07 11.32 [10.71, 11.88] 11.66 [11.01, 12.25] 11.25 [10.96, 11.57] 11.65 [11.05, 12.25] 12.29 [11.51, 12.83] 11.66 [11.29, 12.10]
Λ1.36 440 [356, 536] 478 [363, 594] 419 [351, 526] 653 [554, 745] 675 [548, 781] 639 [541, 726]
cs, max2 0.56 [0.48, 0.67] 0.47 [0.39, 0.58] 0.58 [0.49, 0.68] 0.53 [0.46, 0.64] 0.44 [0.38, 0.55] 0.56 [0.48, 0.65]

Notes. The median values and related 90% confidence intervals (CI) for certain nuclear matter parameters (NMPs), equation of state (EOS), and neutron star (NS) properties for the following models: NL, NL-σ cut, and NL-DM, both with and without the inclusion of PREX-II data. In this table, saturation density (ρ0) is expressed in units of fm−3. NMPs such as ϵ0 − Zsym, 0 are given in MeV. The properties of neutron stars, such as Mmax, are expressed in units of M⊙. The radii corresponding to masses Mi ∈ [1.4, 1.6, 1.8, 2.07] M⊙ are given in kilometers. The parameter Λ1.36, representing the tidal deformability, is unitless. The square of the speed of sound, cs2, is given in units of c2.

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