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We present an extensive range of quantum calculations for the state-changing rotational dynamics involving two simple molecular anions which are expected to play some role in evolutionary analysis of chemical networks in the Interstellar…

Chemical Physics · Physics 2020-10-28 Jan Franz , Barry Mant , Lola González-Sánchez , Roland Wester , Franco A. Gianturco

Recently the AMS-02 reported the precise measurements of the energy spectra of medium-mass compositions (Neon, Magnesium, Silicon) of primary cosmic rays, which reveal different properties from those of light compositions (Helium, Carbon,…

High Energy Astrophysical Phenomena · Physics 2021-07-08 Qiang Yuan , Bing-Qiang Qiao , Yi-Qing Guo , Yi-Zhong Fan , Xiao-Jun Bi

Atmospheric neutrinos at low energies, $E \lsim 500$ MeV, is known to be a rich source of information of lepton mixing parameters. We formulate a simple perturbative framework to elucidate the characteristic features of neutrino oscillation…

High Energy Physics - Phenomenology · Physics 2019-12-06 Ivan Martinez-Soler , Hisakazu Minakata

With the recent radioastronomical detection of cis-trans-carbonic acid (H$_2$CO$_3$) in a molecular cloud toward the galactic center, the more stable but currently unobserved cis-cis conformer is shown here to have strong IR features. While…

Astrophysics of Galaxies · Physics 2024-01-25 Ryan C. Fortenberry , Vincent J. Esposito

The prospects of extracting new physics signals in coherent elastic neutrino--nucleus scattering (CE$\nu$NS) processes are limited by the precision with which the underlying nuclear structure physics, embedded in the weak nuclear form…

Nuclear Theory · Physics 2023-04-27 N. Van Dessel , V. Pandey , H. Ray , N. Jachowicz

Although relativistic heavy-ion collisions have emerged as a powerful probe for studying nuclear structure, the potential influence of nucleon-nucleon short-range correlations (NN-SRCs) on the initial state has remained an open question. By…

Nuclear Theory · Physics 2025-12-01 Pei Li , Kai-Jia Sun , Bo Zhou , Guo-Liang Ma

Interference effects in effective field theory (EFT) analyses can significantly distort sensitivity expectations, leaving subtle yet distinct signatures in the reconstruction of final states crucial for limit setting around Standard Model…

High Energy Physics - Phenomenology · Physics 2025-03-26 Felix Egle , Christoph Englert , Margarete Mühlleitner , Michael Spannowsky

Astrophysical molecular spectroscopy is an important means of searching for new physics through probing the variation of the proton-to-electron mass ratio, $\mu$. New molecular probes could provide tighter constraints on the variation of…

Atomic Physics · Physics 2020-08-26 Anna-Maree Syme , Laura K. McKemmish

The ab initio quasirelativistic Hartree-Fock method developed specifically for the calculation of spectral parameters of heavy atoms and highly charged ions was applied to determine atomic data for tungsten ions. The correlation effects…

Atomic Physics · Physics 2015-04-09 P. Bogdanovich , R. Kisielius

Massive stars play an important role in explaining the cosmic ray spectrum below the knee, possibly even up to the ankle, i.e. up to energies of 1e15 eV or 1e18.5 eV, respectively. In particular, Supernova Remnants are discussed as one of…

High Energy Astrophysical Phenomena · Physics 2014-05-05 J. Becker Tjus

Since its launch, the Alpha Magnetic Spectrometer-02 (AMS-02) has delivered outstanding quality measurements of the spectra of cosmic-ray (CR) species, $e^{\pm}$, $\bar{p}$, and nuclei (H-Si, S, Fe), which have resulted in a number of…

The search for variation of the fundamental constants such as the fine structure constant $\alpha$ ($\alpha=e^2/\hbar c$) and the ratios of fundamental masses (e.g., electron to proton mass ratio $\mu=m_e/m_p$) is reviewed. Strong emphasis…

Atomic Physics · Physics 2015-05-13 V. V. Flambaum , V. A. Dzuba

As well known, the cross sections of the resonance and Quasi-Elastic (QE) scattering off nucleons depend on quantities known as form factors that describe the nucleon structure. There are alternative approaches to determine the values of…

High Energy Physics - Phenomenology · Physics 2025-06-09 Saeed Abbaslu , Mehran Dehpour , Yasaman Farzan , Sahar Safari

Accurate atomic data are essential for opacity calculations and for abundance analyses of the Sun and other stars. The aim of this work is to provide accurate and extensive results of energy levels and transition data for C I - IV. The…

Atomic Physics · Physics 2021-02-03 W. Li , A. M. Amarsi , A. Papoulia , J. Ekman , P. Jönsson

A general algorithm for computing the quadrupole-hyperfine effects in the rovibrational spectra of polyatomic molecules is presented for the case of ammonia (NH$_3$). The method extends the general variational approach TROVE by adding the…

Chemical Physics · Physics 2017-10-25 Andrey Yachmenev , Jochen Küpper

High-energy scattering processes, such as deep inelastic scattering (DIS) and quasielastic (QE) scattering provide a wealth of information about the structure of atomic nuclei. The remarkable discovery of the empirical linear relationship…

Nuclear Theory · Physics 2020-03-09 J. E. Lynn , D. Lonardoni , J. Carlson , J. -W. Chen , W. Detmold , S. Gandolfi , A. Schwenk

The nuclear symmetry energy at densities above saturation density ($\rho_0\sim 0.16 fm^{-3}$) is poorly constrained theoretically and very few relevant experimental data exist. Its study is possible through Heavy Ion Collisions (HIC) at…

Nuclear Theory · Physics 2014-11-20 V. Greco , M. Colonna , M. Di Toro , H. H. Wolter

Our current understanding of interstellar carbon fractionation hinges on the interpretation of astrochemical kinetic models. Yet, the various reactions included carry large uncertainties in their (estimated) rate coefficients, notably those…

Astrophysics of Galaxies · Physics 2021-03-24 C. M. R. Rocha , H. Linnartz

Precise neutrino-nucleon amplitudes are essential ingredients for predicting neutrino event rates in current and upcoming long-baseline neutrino oscillation experiments. A common neutrino interaction with a low reaction threshold and with…

Rate constants for the N + C2 reaction have been measured in a continuous supersonic flow reactor over the range 57 K to 296 K by the relative rate technique employing the N + OH - H + NO reaction as a reference. Excess concentrations of…

Astrophysics of Galaxies · Physics 2017-09-13 Jean-Christophe Loison , Xixi Hu , Shanyu Han , Kevin M. Hickson , Hua Guo , Daiqian Xie