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Momentum distributions of particles from nuclear break-up of fast three-body halos are calculated for polarized beam and outgoing fragments. These momentum distributions are combined in observable quantities which emphasize the two-body…

Nuclear Theory · Physics 2009-10-30 E. Garrido , D. V. Fedorov , A. S. Jensen

Nuclear matter properties based on a relativistic approach suitable for the description of multi-component systems are calculated. We use a set of nuclear relativistic mean-field models that satisfy acceptable nuclear matter properties and…

Nuclear Theory · Physics 2022-04-21 Helena Pais , Oleksii Ivanytskyi , Constança Providência

Charge form factors corresponding to proton density distributions in exotic nuclei, such as $^{6,8}$He, $^{11}$Li, $^{17,19}$B and $^{14}$Be are calculated and compared. The results can be used as tests of various theoretical models for the…

Nuclear Theory · Physics 2009-11-10 A. N. Antonov , M. K. Gaidarov , D. N. Kadrev , P. E. Hodgson , E. Moya de Guerra

The ratio of the proton form factors, GEp/GMp, has been measured from Q2 of 0.5 GeV2 to 8.5 GeV2, at the Jefferson Laboratory, using the polarization transfer method. This ratio is extracted directly from the measured ratio of the…

Nuclear Experiment · Physics 2015-06-19 Vina Punjabi , Charles F. Perdrisat

We present a new next-to-leading order QCD analysis of the world data on inclusive polarized deep inelastic lepton-nucleon scattering adding to the old set of data the final SMC results, the HERMES proton and very recent SLAC/E155 deuteron…

High Energy Physics - Phenomenology · Physics 2009-10-31 Elliot Leader , Alexsander V. Sidorov , Dimiter B. Stamenov

Last year the COHERENT collaboration was able to measure for the first time the Coherent Elastic Neutrino Nucleus Scattering (CE$\nu$NS). Neutrinos within the right energy range can be produced in large quantities at accelerator facilities…

High Energy Physics - Experiment · Physics 2019-03-29 E. Ciuffoli

There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has been greatly improved by performing double polarization experiments, in…

High Energy Physics - Phenomenology · Physics 2009-09-29 C. F. Perdrisat , V. Punjabi , M. Vanderhaeghen

There have been suggestions to measure atomic parity nonconservation (PNC) along an isotopic chain, by taking ratios of observables in order to cancel complicated atomic structure effects. Precise atomic PNC measurements could make a…

Nuclear Theory · Physics 2008-11-26 S. J. Pollock , E. N. Fortson , L. Wilets

Results of recent EMC effect measurements and nuclear scaling measurements have both been attributed to local nuclear density effects and not properties of the bulk nuclear system. This lead us to the phenomenological observation that the…

High Energy Physics - Phenomenology · Physics 2010-09-21 D. W. Higinbotham , J. Gomez , E. Piasetzky

Finite temperature field theory is used to calculate the correction to the mass of the electron in plasma with finite temperature and arbitrary chemical potential, and the results are applied to the core regions of type II supernovae (SNe).…

Astrophysics · Physics 2011-05-23 Stephen J. Hardy

New-generation X-ray polarimeters currently under development promise to open a new window in the study of high-energy astrophysical sources. Among them, neutron stars appear particularly suited for polarization measurements. Radiation from…

High Energy Astrophysical Phenomena · Physics 2015-09-24 Roberto Taverna , Roberto Turolla , Denis Gonzalez Caniulef , Silvia Zane , Fabio Muleri , Paolo Soffitta

For the last few decades, one-nucleon knockout reactions on light composite targets -- $^9$Be or $^{12}$C -- have been extensively used to study the single-particle (s.p.) structure of nuclei far from stability. To determine which…

Nuclear Theory · Physics 2023-11-21 Chloë Hebborn , Pierre Capel

Available data on the polarization of the secondary proton (as a function of its momentum $K$) in the inelastic ({\it p, p$'$}) reactions with the $^{9}$Be, $^{12}$C, and $^{40}$Ca nuclei and differential cross section data (the momentum…

We present a unified treatment of nuclear density cores recovering the classic results for neutral atoms with heavy nuclei having a mass number $A\approx 10^2--10^6$ and extrapolating these results to massive nuclear density cores with…

Solar and Stellar Astrophysics · Physics 2009-03-24 Vladimir Popov , Michael Rotondo , Remo Ruffini , She-Sheng Xue

The Glauber model analysis of the elastic $^{6,8}$He+$p$ scattering data at energies around 700 MeV/nucleon, measured in two separate experiments at GSI-Darmstadt, has been done using several phenomenological parametrizations of the nuclear…

Nuclear Experiment · Physics 2015-10-28 Le Xuan Chung , Oleg A. Kiselev , Dao T. Khoa , Peter Egelhof

A basic quantity in the characterization of relativistic particles is the proton-to-electron (p/e) energy density ratio. We derive a simple approximate expression suitable to estimate this quantity, U_p/U_e = (m_p/m_e)^(3-q)/2, valid when a…

High Energy Astrophysical Phenomena · Physics 2015-06-19 M. Persic , Y. Rephaeli

Spin-dependent quark densities, matrix elements of specific density operators in proton states of definite spin-polarization, indicate that the nucleon may harbor an infinite variety of non-spherical shapes. We show that these matrix…

Nuclear Theory · Physics 2008-11-26 Gerald A. Miller

The relevance of measuring Generalized Parton Distributions (GPDs) of nuclei is stressed and the unique possibilities offered by nuclear few body systems is emphasized. A realistic microscopic calculation of the unpolarized quark GPD Hq3 of…

Nuclear Theory · Physics 2009-11-10 Sergio Scopetta

The nucleon form factors in free space are usually thought to be modified when a nucleon is bound in a nucleus or immersed in a nuclear medium. We investigate effects of the density-dependent axial and weak-vector form factors on the…

Quantum emitters in solid-state crystals have recently attracted a lot of attention due to their simple applicability in optical quantum technologies. The polarization of single photons generated by quantum emitters is one of the key…