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The optical potential of halo and weakly bound nuclei has a long range part due to the coupling to breakup that damps the elastic scattering angular distributions. In order to describe correctly the breakup channel in the case of scattering…

核理论 · 物理学 2009-11-10 Awad A. Ibraheem , Angela Bonaccorso

Core-excitation effects in the scattering of two-body halo nuclei have been investigated in previous works. In particular, these effects have been found to affect in a significant way the breakup cross sections of neutron-halo nuclei with a…

核理论 · 物理学 2017-04-26 R. de Diego , R. Crespo , A. M. Moro

The absolute differential cross sections for small-angle proton elastic scattering off the nuclei $^{12,14-17}$C have been measured in inverse kinematics at energies near 700 MeV/u at GSI Darmstadt. The hydrogen-filled ionization chamber…

We re-examine the matter radii of diffuse halo nuclei, as deduced from reaction cross section measurements at high energy. Careful consideration is given to the intrinsic few-body structure of these projectiles and the adiabatic nature of…

核理论 · 物理学 2009-01-23 J. S. Al-Khalili , J. A. Tostevin

Excitation functions for total reaction cross sections, $\sigma_R$, were measured for the light, mainly proton-rich nuclei $^6$Li, $^7$Be, $^{10}$B, $^{9,10,11}$C, $^{12}$N, $^{13,15}$O, and $^{17}$Ne incident on a Si telescope at energies…

Cross sections for proton inelastic collision with different nuclei are described within the Glauber approximation. The significant difference between approximate ``Glauber'' formula and exact calculations with geometrical scaling…

高能物理 - 唯象学 · 物理学 2007-05-23 Tadeusz Wibig

We study the scaling properties of proton-nucleus total reaction cross sections for stable nuclei and propose an approximate expression in proportion to Z^{2/3}\sigma_{pp}^{total} + N^{2/3} \sigma_{pn}^{total}. Based on this expression, we…

核理论 · 物理学 2010-05-19 Badawy Abu-Ibrahim , Akihisa Kohama

A class of nucleon-nucleon interactions which are exactly phase equivalent to a given realistic nucleon-nucleon interaction are exhibited. These interaction have the property that the RMS radius of the deuteron can be made arbitrarily large…

核理论 · 物理学 2008-11-26 Wayne N. Polyzou

A new empirical formula has been developed that describes the $({\gamma}, n)$ nuclear reaction cross sections for the isotopes with $Z \geq 60$. The results were supported by calculations using TALYS - 1.6, EMPIRE - 3.2.2 nuclear modular…

核理论 · 物理学 2017-04-26 Rajnikant Makwana , S. Mukherjee , Jian-Song Wang , Zhi-Qiang Chen

We are investigating the total charge changing cross-section of 12C by using the CR39 nuclear track detector. Target sandwiched with CR39 of 5 cm x 5 cm area was irradiated with $^{12}$C ion at 55 MeV/n and 135 MeV/n at the Wakasa wan…

核实验 · 物理学 2022-09-29 Iftekhar Ahmed

The ratio method has been developed to improve the study of one-neutron halo nuclei through reactions. By taking the ratio of angular distributions for two processes, viz. breakup and elastic scattering, this new observable is nearly…

核理论 · 物理学 2020-01-08 X. Y. Yun , F. Colomer , D. Y. Pang , P. Capel

For the first time, the precise data on the above barrier fusion (capture) cross-sections for the reactions involving spherical colliding nuclei are quantitatively analyzed using the relativistic mean-field effective interaction. The…

核理论 · 物理学 2019-07-29 Maria Chushnyakova , Igor Gontchar , Natalya Khmyrova

We analyze (p,t) two-neutron transfer reactions in a semi-microscopic model. The overlap integrals of the target nucleus are calculated in a microscopic cluster model. The Resonating Group Method (RGM) assumes a cluster structure of the…

核理论 · 物理学 2025-02-26 Pierre Descouvemont

In this paper, the results of measurements of the total cross sections for the reactions $^{10,11,12}$Be+$^{28}$Si and $^{14}$B+$^{28}$Si in the beam energy range $13A$--$47A$ MeV are presented. The experimental cross sections were obtained…

A method was developed for measuring photonuclear reactions concurrently at several discrete photon beam energies on a stack of different target materials via a single irradiation. Concentric ring targets of the materials (in order from…

In order to clear up the sensitivity of the nucleus-nucleus scattering to the nuclear matter distributions of exotic halo nuclei, we have calculated differential cross sections for elastic scattering of the $^6$He and $^{11}$Li nuclei on…

核理论 · 物理学 2015-05-28 G. D. Alkhazov , V. V. Sarantsev

The new data of the elastic scattering of $^{6}$He+$^{12}$C at about 40 MeV/nucleon are analyzed in the eikonal approximation. The $^{6}$He+$^{12}$C phase-shift function is evaluated completely without any {\it ad hoc} assumption by a Monte…

核理论 · 物理学 2015-06-26 B. Abu-Ibrahim , Y. Suzuki

By evaluating all the contributions of the intermediate states of the multiple scattering theory diagrams, we compute the integrated stripping cross sections of collisions among light nuclei. The resulting expressions have the simple form…

高能物理 - 唯象学 · 物理学 2009-10-31 Yu. M. Shabelski , D. Treleani

Background: The ratio method has been proposed as a means to remove the reaction model dependence in the study of halo nuclei. Purpose: Originally, it was developed for higher energies but given the potential interest in applying the method…

核理论 · 物理学 2016-06-22 F. Colomer , P. Capel , F. M. Nunes , R. C. Johnson

On-going measurements of the cosmic radiation (nuclear, electronic, and gamma-ray) are shedding new light on cosmic-ray physics. A comprehensive picture of these data relies on an accurate determination of the transport and source…

高能天体物理现象 · 物理学 2010-07-08 A. Putze , L. Derome , D. Maurin