Statistical features of the thermal neutron capture cross sections

We discuss the existence of huge thermal neutron capture cross sections in several nuclei. The values of the cross sections are several orders of magnitude bigger than expected at these very low energies. We lend support to the idea that this phenomenon is random in nature and is similar to what we have learned from the study of parity violation in the actinide region. The idea of statistical doorways is advanced as a unified concept in the delineation of large numbers in the nuclear world. The average number of maxima per unit mass, $$ in the capture cross section is calculated and related to the underlying cross section correlation function and found to be $= 3/(\pi \sqrt{2}\gamma_{A})$, where $\gamma_{A}$ is a characteristic mass correlation width which designates the degree of remnant coherence in the system. We trace this coherence to nucleosynthesis which produced the nuclei whose neutron capture cross sections are considered here.Comment: 7 pages, 6 figures. To appear in Acta Physica Polonica B as a Contribution to the proceedings of:Jagiellonian Symposium of Fundamental and Applied Subatomic Physics, June 7- 12, 2015 Krakow, Polan

On special FCn-cell modules

In this paper, we study a specied family of Fuss-Catalan algebra cell modules. We define the set of the basis diagrams and we give the general form for the Gram matrix related to this family. In addition, we state when these modules are irreducible by finding the determinant of the Gram matrices. Finally, we define a homomorphism between certain cell modules

Inclusive Breakup Theory of Three-Body Halos

We present a recently developed theory for the inclusive breakup of three-fragment projectiles within a four-body spectator model \cite{CarPLB2017}, for the treatment of the elastic and inclusive non-elastic break up reactions involving weakly bound three-cluster nuclei in $A\,(a,b)\,X$ / $a = x_1 + x_2 + b$ collisions. The four-body theory is an extension of the three-body approaches developed in the 80's by Ichimura, Autern and Vincent (IAV) \cite{IAV1985}, Udagawa and Tamura (UT) \cite{UT1981} and Hussein and McVoy (HM) \cite{HM1985}. We expect that experimentalists shall be encouraged to search for more information about the $x_{1} + x_{2}$ system in the elastic breakup cross section and that also further developments and extensions of the surrogate method will be pursued, based on the inclusive non-elastic breakup part of the $b$ spectrum.Comment: 8 pages, 3 figures, Contribution to the Proceedings of Fusion17: "International Conference on Heavy-Ion Collisions at Near-Barrier Energies", 20-24 February 2017 Hobart, Tasmania, Australi

Dedalus And Icarus: The Influence of James Joyce on the Poetry of Hart Crane

This dissertation is a pioneer study of the influence of James Joyce\u27s A Portrait of the Artist as a Young Man and Ulysses on Hart Crane\u27s White Buildings. As such, it is both an influence study and a close reading of Crane\u27s finest poems in a new light. The first part of the essay (the introduction and the first three chapters) tackles the question of influence, the authors who helped shape Crane\u27s literary make-up, and the extent and limitations of these influences as compared to the thorough-going influence Joyce exerted on Crane. In those chapters I examine the role played by Joyce\u27s aesthetic theories in the Portrait and Ulysses in shaping Crane\u27s aesthetic concepts. In the last four chapters I present a close reading of the poems in White Buildings in the light of the groundwork laid down in the first part of the study. It becomes clear there that Joyce\u27s influence on Crane manifests itself both thematically and technically. In that second part of the study, the poems of White Buildings are divided into three main groups: first, poems that deal with aesthetic questions; second, poems that involve ontological, philosophical, and religious themes; and third, poems that treat the Materna archetype. In all the poems, and al through the treatise, various aspects of Crane\u27s relation to Joyce--affinities of artistic temperament, subconscious and conscious influences, and direct borrowings, both thematic and technical--are explored in detail. In exploring these aspects my objectives have been: first, to make a case for a very important though overlooked influence on Crane; second, to present a new and close reading of Crane\u27s best poems; and third, to relocate Crane artistically and critically by undermining his Romanticism and establishing his affiliation with the modernist tradition of Joyce, Eliot, and Pound

Dedalus And Icarus: The Influence of James Joyce on the Poetry of Hart Crane

This dissertation is a pioneer study of the influence of James Joyce\u27s A Portrait of the Artist as a Young Man and Ulysses on Hart Crane\u27s White Buildings. As such, it is both an influence study and a close reading of Crane\u27s finest poems in a new light. The first part of the essay (the introduction and the first three chapters) tackles the question of influence, the authors who helped shape Crane\u27s literary make-up, and the extent and limitations of these influences as compared to the thorough-going influence Joyce exerted on Crane. In those chapters I examine the role played by Joyce\u27s aesthetic theories in the Portrait and Ulysses in shaping Crane\u27s aesthetic concepts. In the last four chapters I present a close reading of the poems in White Buildings in the light of the groundwork laid down in the first part of the study. It becomes clear there that Joyce\u27s influence on Crane manifests itself both thematically and technically. In that second part of the study, the poems of White Buildings are divided into three main groups: first, poems that deal with aesthetic questions; second, poems that involve ontological, philosophical, and religious themes; and third, poems that treat the Materna archetype. In all the poems, and al through the treatise, various aspects of Crane\u27s relation to Joyce--affinities of artistic temperament, subconscious and conscious influences, and direct borrowings, both thematic and technical--are explored in detail. In exploring these aspects my objectives have been: first, to make a case for a very important though overlooked influence on Crane; second, to present a new and close reading of Crane\u27s best poems; and third, to relocate Crane artistically and critically by undermining his Romanticism and establishing his affiliation with the modernist tradition of Joyce, Eliot, and Pound