Nuclear Theory·nucl-th

Thursday·May 31, 2018

11 papers—4 primary·7 cross-listed

01
GW170817: constraining the nuclear matter equation of state from the neutron star tidal deformability
Tuhin Malik · N. Alam · M. Fortin · C. Providência · B. K. Agrawal · T. K. Jha · Bharat Kumar · S. K. Patra
Constraints set on key parameters of the nuclear matter equation of state (EoS) by the values of the tidal deformability, inferred from GW170817, are examined by using a diverse set of relativistic and non-relativistic mean field models. These models are consistent with bulk properties of finite nuclei as well as with the observed lower bound on the maximum mass of neutron star $\sim 2 M_{⊙}$ . The tidal deformability shows a strong correlation with specific linear combinations of the isoscalar and isovector nuclear matter parameters associated with the EoS. Such correlations suggest that a precise value of the tidal deformability can put tight bounds on several EoS parameters, in particular, on the slope of the incompressibility and the curvature of the symmetry energy. The tidal deformability obtained from the GW170817 and its UV/optical/infrared counterpart sets the radius of a canonical $1.4 M_{⊙}$ neutron star to be $11.82 ⩽ R_{1.4} ⩽ 13.72$ km.
nucl-thastro-ph.HEgr-qcPRC(2018)·296 citations
02
Rapidity scan in heavy ion collisions at $s_{NN} = 72$ ~GeV using a viscous hydro + cascade model
Iurii Karpenko🇫🇷
In this note we discuss the rapidity dependence of the initial and final conditions for hydrodynamic evolution as well as the resulting basic hadronic observables in heavy ion collisions at $s_{NN} = 72$ GeV in the framework of a viscous hydro+cascade model vHLLE+UrQMD. The resulting rapidity dependences are driven to a big extent by the initial state, which is simulated with the UrQMD cascade. The results can serve as a prediction for future experiments such as the AFTER@LHC or the BES-II program at STAR.
nucl-thhep-phnucl-exActa Phys.Polon.B(2019)·14 citations
03
Systematic analysis of the peripherality of the $^{10}$ Be $(d, p)$ $^{11}$ Be transfer reaction and extraction of the asymptotic normalization coefficient of $^{11}$ Be bound states
J. Yang · P. Capel
We reanalyze the experiment of Schmitt $et al.$ on the $^{10}$ Be $(d, p)^{11}$ Be transfer reaction [Phys. Rev. Lett. $108$ , 192701 (2012)] by exploring the beam-energy and angular ranges at which the reaction is strictly peripheral. We consider the adiabatic distorted wave approximation (ADWA) to model the reaction and use a Halo-EFT description of $^{11}$ Be to systematically explore the sensitivity of our calculations to the short-range physics of the $^{10}$ Be- $n$ wave function. We find that by selecting the data at low beam energy and forward scattering angle the calculated cross sections scale nearly perfectly with the asymptotic normalization coefficient (ANC) of the $^{11}$ Be bound states. Following these results, a comparison of our calculations with the experimental data gives a value of $C_{1 s 1/2} = 0.785 \pm 0.03$ fm $^{- 1/2}$ for the $\frac{1}{2}^{+}$ ground-state ANC and $C_{0 p 1/2} = 0.135 \pm 0.005$ fm $^{- 1/2}$ for the $\frac{1}{2}^{-}$ excited-state, which are in perfect agreement with the $ab initio$ calculations of Calci $et al.$ , who obtain $C_{1/ 2^{+}}^{ab initio} = 0.786$ fm $^{- 1/2}$ and $C_{1/ 2^{-}}^{ab initio} = 0.129$ fm $^{- 1/2}$ [Phys. Rev. Lett. $117$ , 242501 (2016)].
nucl-thPRC(2018)·34 citations
04
Can Long-Range Nuclear Properties Be Influenced By Short Range Interactions? A chiral dynamics estimate
G.A. Miller🇺🇸 · A. Beck🇺🇸 · S. May-Tal Beck🇺🇸 · L.B. Weinstein🇺🇸 · E. Piasetzky🇮🇱 · O. Hen🇺🇸
Recent experiments and many-body calculations indicate that approximately 20\% of the nucleons in medium and heavy nuclei ( $A \geq 12$ ) are part of short-range correlated (SRC) primarily neutron-proton ( $n p$ ) pairs. We find that using chiral dynamics to account for the formation of $n p$ pairs due to the effects of iterated and irreducible two-pion exchange leads to values consistent with the 20\% level. We further apply chiral dynamics to study how these correlations influence the calculations of nuclear charge radii, that traditionally truncate their effect, to find that they are capable of introducing non-negligible effects.
nucl-thhep-phnucl-exPLB(2019)·33 citations

Affiliations

first authorsco-authorsvia INSPIRE

GW170817: constraining the nuclear matter equation of state from the neutron star tidal deformability

Rapidity scan in heavy ion collisions at sNN​​=72~GeV using a viscous hydro + cascade model

Systematic analysis of the peripherality of the 10Be(d,p)11Be transfer reaction and extraction of the asymptotic normalization coefficient of 11Be bound states

Can Long-Range Nuclear Properties Be Influenced By Short Range Interactions? A chiral dynamics estimate

Affiliations

Rapidity scan in heavy ion collisions at $s_{NN} = 72$ ~GeV using a viscous hydro + cascade model

Systematic analysis of the peripherality of the $^{10}$ Be $(d, p)$ $^{11}$ Be transfer reaction and extraction of the asymptotic normalization coefficient of $^{11}$ Be bound states