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Nuclear Theory·nucl-th

Monday·June 20, 2022

5 papers—2 primary·3 cross-listed

All5Primary2Cross-lists3
  1. 03

    [Submitted on 15 Jun 2022] (cross-list from hep-ph)

    Masses of Single, Double and Triple Heavy baryons in the Hyper-Central Quark Model by Using GF-AEIM

    M. Abu-shady🇪🇬 · H. M. Fath-Allah🇪🇬

    In this paper, we calculate single, double and triple heavy baryons masses using hyper-central approach in the two cases. The first case, considering potential is a combination of Coulombic, linear confining and harmonic oscillator terms. The second case, we add the hyperfine interaction. The hyper-radial Schrodinger equation in the two cases is solved to obtain energy eigenvalues and the baryonic wave function by using the generalized fractional analytical iteration method (GF-AEIM). The present results are a good agreement with experimental data and are improved with other recent works.

    Comments:
    19 pages, 9 tables. arXiv admin note: text overlap with arXiv:1403.4582 by other authors
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    2206.08372 [pdf]
    Adv.High Energy Phys.(2022)·6 citations
  2. 04

    [Submitted on 17 Jun 2022] (cross-list from quant-ph)

    Quantum computation of nuclear observables involving linear combination of unitary operators

    Pooja Siwach🇺🇸 · P. Arumugam🇮🇳

    We present the quantum computation of nuclear observables where the operators of interest are first decomposed in terms of the linear combination of unitaries. Then we utilise the Hadamard test and the linear combination of unitaries (LCU) based methods to compute the expectation values. We apply these methods to calculate the electric quadrupole moment of deuteron. The results are compared for the Jordan-Wigner transformation and Gray code encoding. We discuss the versatility of our approach that can be utilized in general to calculate several observables on a quantum computer.

    Comments:
    11 pages, 12 figures, accepted for publication in Phys. Rev. C
    Subjects:
    Quantum Physics (quant-ph); Nuclear Theory (nucl-th)
    arXiv:
    2206.08510 [pdf]
    PRC(2022)·24 citations
  3. 05

    [Submitted on 17 Jun 2022] (cross-list from hep-ph)

    Inelastic nuclear scattering from neutrinos and dark matter

    Bhaskar Dutta🇺🇸 · Wei-Chih Huang🇺🇸 · Jayden L. Newstead🇦🇺 · Vishvas Pandey🇺🇸

    Neutrinos with energy of order 10~MeV, such as from pion decay-at-rest sources, are an invaluable tool for studying low-energy neutrino interactions with nuclei -- previously enabling the first measurement of coherent elastic neutrino-nucleus scattering. Beyond elastic scattering, neutrinos and dark matter in this energy range also excite nuclei to its low-lying nuclear states, providing an additional physics channel. Here, we consider neutral-current inelastic neutrino-nucleus and dark matter(DM)-nucleus scattering off Ar, Cs, and I nuclei that are relevant to a number of low-threshold neutrino experiments at pion decay-at-rest facilities. We carry out large scale nuclear shell model calculations of the inelastic cross sections considering the full set of electroweak multipole operators. Our results demonstrate that Gamow-Teller transitions provide the dominant contribution to the cross section and that the long-wavelength limit provides a reasonable approximation to the total cross section for neutrino sources. We show that future experiments will be sensitive to this channel and thus these results provide additional neutrino and DM scattering channels to explore at pion decay-at-rest facilities.

    Comments:
    16 pages, 12 figures, published version
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    2206.08590 [pdf]
    PRD(2022)·20 citations

Affiliations

first authorsco-authorsvia INSPIRE