PaperPanorama

Nuclear Theory·nucl-th

Friday·October 20, 2017

7 papers4 primary·3 cross-listed

  1. 01

    Fundamental Physics with Electroweak Probes of Nuclei

    Saori Pastore🇺🇸

    The past decade has witnessed tremendous progress in the theoretical and computational tools that produce our understanding of nuclei. A number of microscopic calculations of nuclear electroweak structure and reactions have successfully explained the available experimental data, yielding a complex picture of the way nuclei interact with electroweak probes. This achievement is of great interest from the pure nuclear-physics point of view. But it is of much broader interest too, because the level of accuracy and confidence reached by these calculations opens up the concrete possibility of using nuclei to address open questions in other sub-fields of physics, such as, understanding the fundamental properties of neutrinos, or the particle nature of dark matter. In this talk, I will review recent progress in microscopic calculations of electroweak properties of light nuclei, including electromagnetic moments, form factors and transitions in between low-lying nuclear states along with preliminary studies for single- and double-beta decay rates. I will illustrate the key dynamical features required to explain the available experimental data, and, if time permits, present a novel framework to calculate neutrino-nucleus cross sections for nuclei.

    nucl-thJ.Phys.Conf.Ser.(2018)·0 citations
  2. 02

    A new ground-state band level energy formula for transitional nuclei

    Shuifa Shen · Jing Pan · Yupeng Yan · Jiejie Shen · Feipeng Wang · Tingtai Wang · Jiaming Jiang · Jing Song · Mengyun Cheng · Lijuan Hao

    A new three parameter formula is proposed for ground-state bands in even-even soft rotors or called transitional nuclei. The new formula blends those of very soft nuclei and well deformed nuclei. Especially, it is found in fact that the formula proposed by P. von Brentano et al. can be derived from our formula if some approximations are adopted and it can be explained why in their work the energy-dependent term beta*E can be dropped. Compared to their formula it can be resulted in that the range of validity of our formula will be much broader than theirs.

    nucl-th0 citations
  3. 03

    Historical perspective and future prospects for nuclear interactions

    R. Machleidt🇺🇸

    The nuclear force is the heart of nuclear physics and, thus, the significance of this force for all of nuclear physics can hardly be overstated. Research on this crucial force has by now spanned eight decades and we are still not done. I will first review the rich history of hope and desperation, which had spin-off far beyond just nuclear physics. Next, I will present the current status in the field which is charcterized by the application of an effective field theory (EFT) that is believed to represent QCD in the low energy regime typical for nuclear physics. During the past two decades, this EFT has become the favorite vehicle to derive nuclear two- and many-body forces. Finally, I will take a look into the future: What developments can we expect from the next decades? Will the 30-year cycles of new and "better" ideas for efficiently describing nuclear forces go on for ever, or is there hope for closure?

    nucl-thIJMPE(2017)·49 citations
  4. 04

    Varying the chiral magnetic effect relative to flow in a single nucleus-nucleus collision

    Hao-jie Xu🇨🇳 · Jie Zhao🇺🇸 · Xiaobao Wang🇨🇳 · Hanlin Li🇨🇳 · Zi-Wei Lin🇨🇳 · Caiwan Shen🇨🇳 · Fuqiang Wang🇨🇳

    We propose a novel method to search for the chiral magnetic effect (CME) in heavy ion collisions. We argue that the relative strength of the magnetic field (mainly from spectator protons and responsible for the CME) with respect to the reaction plane and the participant plane is opposite to that of the elliptic flow background arising from the fluctuating participant geometry. This opposite behavior in a single collision system, hence with small systematic uncertainties, can be exploited to extract the possible CME signal from the flow background. The method is applied to the existing data at RHIC, the outcome of which is discussed.

    nucl-thhep-phnucl-exCPC(2018)·80 citations

Affiliations

first authorsco-authorsvia INSPIRE