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Related papers: Individual dipole toroidal states: main features a…

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We analyze LHC available data measuring the distribution probability of transverse momenta~$p_T$ in proton-proton collisions at $\sqrt{s}=0.9\,\textrm{TeV}$ (CMS, ALICE, ATLAS) and $\sqrt{s}=7\,\textrm{TeV}$ (CMS, ATLAS). A remarkably good…

High Energy Physics - Phenomenology · Physics 2014-09-12 Leonardo J. L. Cirto , Constantino Tsallis , Cheuk-Yin Wong , Grzegorz Wilk

Low-lying electric-dipole ($E1$) strength of a neutron-rich nucleus contains information on neutron-skin thickness, deformation, and shell evolution. We discuss the possibility of making use of total reaction cross sections on $^{40}$Ca,…

Nuclear Theory · Physics 2017-09-13 W. Horiuchi , S. Hatakeyama , S. Ebata , Y. Suzuki

Within the self-consistent constraint Skyrme-Hartree-Fock+BCS model (SHF+BCS), we found equilibrium toroidal nuclear density distributions in the region of super-heavy elements. For nuclei with a sufficient oblate deformation ($Q_{20}\leq$…

Nuclear Theory · Physics 2009-04-24 Andrzej Staszczak , Cheuk-Yin Wong

Very recent inelastic $\alpha$-scattering data on the isoscalar monopole and dipole strength distributions in $^{56}$Fe, $^{58}$Ni, and $^{60}$Ni are analyzed in the relativistic quasiparticle random-phase approximation (RQRPA) with the…

Nuclear Theory · Physics 2009-11-11 N. Paar , D. Vretenar , T. Niksic , P. Ring

Experimental data on $^{96}$Zr indicate coexisting spherical and deformed structures with small mixing amplitudes. Several collective low-lying states and E2 and M1 transitions are observed for this nucleus. The quadrupole-collective Bohr…

Nuclear Theory · Physics 2020-09-16 E. V. Mardyban , E. A. Kolganova , T. M. Shneidman , R. V. Jolos , N. Pietralla

We present a calculation of the properties of vibrational states in deformed, axially--symmetric even--even nuclei, within the framework of a fully self--consistent Quasparticle Random Phase Approximation (QRPA). The same Skyrme energy…

Nuclear Theory · Physics 2011-02-28 C. Losa , A. Pastore , T. Dossing , E. Vigezzi , R. A. Broglia

By using the Continuum RPA (CRPA) method, the incoherent transition strength of the exotic mu - e conversion in the 208Pb and 40Ca nuclei is investigated. The question whether excited nuclear states lying high in the continuum give an…

Nuclear Theory · Physics 2007-05-23 P. Papakonstantinou , O. Civitarese , T. S. Kosmas , J. Wambach

The iterative quasi-particle-random-phase approximation (QRPA) method we previously developed to accurately calculate properties of individual nuclear states is extended so that it can be applied for nuclei with odd numbers of neutrons and…

Nuclear Theory · Physics 2014-06-03 B. G. Carlsson , J. Toivanen

Topologically ordered phases are gapped states, defined by the properties of excitations when taken around one another. Here we demonstrate a method to extract the statistics and braiding of excitations, given just the set of ground-state…

Strongly Correlated Electrons · Physics 2012-07-04 Yi Zhang , Tarun Grover , Ari Turner , Masaki Oshikawa , Ashvin Vishwanath

We review our results on $Z_{c}$-like states[1] which we complete with the ones on $Z_{b}$-like states by using relativistic QCD Laplace Sum Rules (LSR) within stability criteria and including Factorized Next-to-Leading Order (FNLO)…

High Energy Physics - Phenomenology · Physics 2021-11-09 S. Narison , D. Rabetiarivony

The magnetic dipole ($M$1) resonances of even-even $^{112-120, 124}$Sn isotopes are investigated in the framework of the self-consistent Skyrme Hartree-Fock (HF) + BCS and Quasiparticle Random Phase Approximation (QRPA). The Skyrme energy…

Nuclear Theory · Physics 2023-12-22 Shuai Sun , Li-Gang Cao , Feng-Shou Zhang , Hiroyuki Sagawa , Gianluca Colò

Recent theoretical work has not led to a consensus regarding the nature of the low-energy E1 strength in the 40,44,48Ca isotopes, for which high-resolution (gamma,gamma') data exist. Here we revisit this problem using the first-order…

Nuclear Theory · Physics 2012-03-21 P. Papakonstantinou , H. Hergert , V. Yu. Ponomarev , R. Roth

The pygmy dipole resonance (PDR), marked by enhanced electric dipole strength near particle emission energies, offers a unique perspective on the collective dynamics of nuclear structure. Its precise nature, particularly its degree of…

Nuclear Theory · Physics 2025-08-01 Eun Jin In , Emanuel Chimanski , Jutta Escher , Sophie Péru , Aaina Thapa , Walid Younes

A robust potential wherein is embedded the crucial core polarization interaction is used in the Regge Pole methodology to calculate low energy electron elastic scattering total cross section (TCS) for the C60 fullerene in the electron…

Atomic and Molecular Clusters · Physics 2017-03-02 Z. Felfli , A. Z. Msezane

The $^{12}$C nucleus with $N$=6 and $Z$=6 is a doubly closed-shell nucleus in a toroidal potential. In the description of the ground state and the Hoyle state of $^{12}$C in the resonating group method or the generator coordinate method, a…

Nuclear Theory · Physics 2019-09-19 Cheuk-Yin Wong , Andrzej Staszczak

The isovector dipole E1 strength in Mo isotopes with A=92,94,96,98,100 is analyzed within the self-consistent separable random-phase approximation (SRPA) model with Skyrme forces SkT6, SkM*, SLy6, and SkI3. The special attention is paid to…

Nuclear Theory · Physics 2009-05-29 J. Kvasil , P. Vesely , V. O. Nesterenko , W. Kleinig , P. -G. Reinhard , S. Frauendorf

The transverse nuclear response to an electromagnetic probe which is limited to create (or destroyed) a particle-hole ($ph$) or delta-hole ($\Delta h$) pair is analyzed. Correlations of the random phase approximation (RPA) type and self…

Nuclear Theory · Physics 2009-10-31 E. Bauer

The effective string tension ($\kappa$) in the Schwinger mechanism and the effective temperature ($T$) in Bose-Einstein statistics are extracted from the transverse momentum ($p_T$) spectra of heavy quarkonia produced in proton-proton (p+p)…

High Energy Physics - Phenomenology · Physics 2026-05-21 Peng-Cheng Zhang , Hailong Zhu , Fu-Hu Liu , Khusniddin K. Olimov

Resolution of discrete final states in the $^{16}$O(e,e$'$pp)$^{14}$C reaction may provide an interesting tool to discriminate between contributions from one- and two-body currents in this reaction. This is based on the observation that the…

Nuclear Theory · Physics 2016-09-08 C. Giusti , F. D. Pacati , K. Allaart , W. J. W. Geurts , W. H. Dickhoff , H. Müther

In the present work, the isovector dipole responses, both in the resonance region and in the low-energy sector, are investigated using the microscopic nuclear Energy Density Functionals (EDFs). The self-consistent QRPA model based on Skyrme…

Nuclear Theory · Physics 2020-01-08 E. Yüksel , G. Colò , E. Khan , Y. F. Niu