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NSR database version of April 11, 2024.

Search: Author = J.C.Berengut

Found 15 matches.

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2022FA04      Phys.Rev. C 105, L051303 (2022)

P.Fadeev, J.C.Berengut, V.V.Flambaum

Effects of variation of the fine structure constant α and quark mass mq in Mossbauer nuclear transitions

NUCLEAR STRUCTURE 57Fe, 67Zn, 83Kr, 99Ru, 119Sn, 121Sb, 125Te, 127,129I, 149Sm, 151,153Eu, 155,157Gd, 161Dy, 181Ta, 197Au, 229Th, 235U, 243Am; analyzed nuclear structure data, information on change of rms charge radius and intrinsic quadrupole moment between ground and excited states; deduced sensitivity of nuclear (Mossbauer) transitions to variation of fine structure constant and quark mass. Discussed the possibility of studies 8-eV in 229Th and 76-eV in 235U transition by means of laser spectroscopy.

doi: 10.1103/PhysRevC.105.L051303
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2022FI01      Phys.Rev.Lett. 128, 073001 (2022)

N.L.Figueroa, J.C.Berengut, V.A.Dzuba, V.V.Flambaum, D.Budker, D.Antypas

Precision Determination of Isotope Shifts in Ytterbium and Implications for New Physics

ATOMIC PHYSICS 168,170,172,174,176Yb; measured frequencies; deduced isotope shifts for the five spinless Yb isotopes, nonlinearity in the joint King-plot analysis due to the deformation of the Yb nuclei. Doppler-free two-photon spectroscopy.

doi: 10.1103/PhysRevLett.128.073001
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2022HA28      Phys. Rev. Res. 4, 033049 (2022)

J.Z.Han, C.Pan, K.Y.Zhang, X.F.Yang, S.Q.Zhang, J.C.Berengut, S.Goriely, H.Wang, Y.M.Yu, J.Meng, J.W.Zhang, L.J.Wang

Isotope shift factors for the Cd+ 5s2S1/2 → 5p2P3/2 transition and determination of Cd nuclear charge radii

NUCLEAR MOMENTS 100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130Cd; measured frequencies; deduced atomic isotope shift factors limits, linear transformation parameters, nuclear charge radii. Comparison with CI+MBPT calculations are performed to cross-check the accuracy and reliability of the extracted atomic IS factors.

doi: 10.1103/PhysRevResearch.4.033049
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2021BA45      Phys.Rev.Lett. 127, 192501 (2021)

A.Barzakh, A.N.Andreyev, C.Raison, J.G.Cubiss, P.Van Duppen, S.Peru, S.Hilaire, S.Goriely, B.Andel, S.Antalic, M.Al Monthery, J.C.Berengut, J.Bieron, M.L.Bissell, A.Borschevsky, K.Chrysalidis, T.E.Cocolios, T.Day Goodacre, J.-P.Dognon, M.Elantkowska, E.Eliav, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, L.P.Gaffney, R.F.Garcia Ruiz, M.Godefroid, C.Granados, R.D.Harding, R.Heinke, M.Huyse, J.Karls, P.Larmonier, J.G.Li, K.M.Lynch, D.E.Maison, B.A.Marsh, P.Molkanov, P.Mosat, A.V.Oleynichenko, V.Panteleev, P.Pyykko, M.L.Reitsma, K.Rezynkina, R.E.Rossel, S.Rothe, J.Ruczkowski, S.Schiffmann, C.Seiffert, M.D.Seliverstov, S.Sels, L.V.Skripnikov, M.Stryjczyk, D.Studer, M.Verlinde, S.Wilman, A.V.Zaitsevskii

Large Shape Staggering in Neutron-Deficient Bi Isotopes

NUCLEAR MOMENTS 187,188,189,191Bi; measured frequencies. 209Bi; deduced hfs, mean-square charge radii, magnetic dipole, and electric quadrupole moments. Comparison with HFB PES calculations, available data.

doi: 10.1103/PhysRevLett.127.192501
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2021FU06      Phys.Rev.Lett. 126, 102502 (2021)

K.Fujii, J.C.Berengut

Power-Law Intensity Distribution of γ-Decay Cascades: Nuclear Structure as a Scale-Free Random Network

NUCLEAR REACTIONS 76Se(n, γ), E thermal; analyzed available data; deduced γ-decay cascades, γ-cascade spectra.

doi: 10.1103/PhysRevLett.126.102502
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2020BI05      Phys.Rev.Lett. 124, 192502 (2020)

P.V.Bilous, H.Bekker, J.C.Berengut, B.Seiferle, L.V.D.Wense, P.G.Thirolf, T.Pfeifer, J.R.C.Lopez-Urrutia, A.Palffy

Electronic Bridge Excitation in Highly Charged 229Th Ions

NUCLEAR REACTIONS Th(γ, X)229mTh, E<10 eV; calculated low-lying electronic energy levels in Th, nuclear EB excitation rate in the EBIT, Zeeman splitting and Doppler broadening of the absorbed photon energy.

doi: 10.1103/physrevlett.124.192502
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2020FA08      Phys.Rev. A 102, 052833 (2020)

P.Fadeev, J.C.Berengut, V.V.Flambaum

Sensitivity of 229Th nuclear clock transition to variation of the fine-structure constant

RADIOACTIVITY 229Th(IT); analyzed available data; deduced the quadrupole moment sensitivity, frequency shift, fine-structure constant impact, possible effect of the octupole deformation.

doi: 10.1103/PhysRevA.102.052833
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2020GU24      Phys.Rev. A 102, 052812 (2020)

F.P.Gustafsson, C.M.Ricketts, M.L.Reitsma, R.F.Garcia Ruiz, S.W.Bai, J.C.Berengut, J.Billowes, C.L.Binnersley, A.Borschevsky, T.E.Cocolios, B.S.Cooper, R.P.de Groote, K.T.Flanagan, A.Koszorus, G.Neyens, H.A.Perrett, A.R.Vernon, Q.Wang, S.G.Wilkins, X.F.Yang

Tin resonance-ionization schemes for atomic- and nuclear-structure studies

NUCLEAR MOMENTS 116,117,118,119,120,122,124Sn; measured frequencies; deduced isotope shifts, magnetic dipole hyperfine constants, hyperfine structures. Comparison with state-of-the-art atomic calculations using a relativistic Fock-space coupled-cluster method and the configuration interaction approach combined with many-body perturbation theory.

doi: 10.1103/PhysRevA.102.052812
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2019OH03      Phys.Rev. A 99, 042503 (2019)

B.Ohayon, H.Rahangdale, A.J.Geddes, J.C.Berengut, G.Ron

Isotope shifts in 20, 22Ne: Precision measurements and global analysis in the framework of intermediate coupling

ATOMIC PHYSICS 20,22Ne; measured frequencies; deduced isotope shift for several transitions. Comparison with state-of-the-art, ab initio field-shift calculations.

doi: 10.1103/PhysRevA.99.042503
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2018GE05      Phys.Rev. A 98, 022508 (2018)

A.J.Geddes, L.V.Skripnikov, A.Borschevsky, J.C.Berengut, V.V.Flambaum, T.P.Rakitzis

Enhanced nuclear-spin-dependent parity-violation effects using the 199HgH molecule

ATOMIC PHYSICS 199Hg; analyzed available data; deduced a proposal for low-energy optical rotation experiment to extract the anapole moment and shed light on the underlying theory of hadronic parity violation.

doi: 10.1103/PhysRevA.98.022508
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2018RA11      Phys.Rev.Lett. 120, 232503 (2018)

S.Raeder, D.Ackermann, H.Backe, R.Beerwerth, J.C.Berengut, M.Block, A.Borschevsky, B.Cheal, P.Chhetri, Ch.E.Dullmann, V.A.Dzuba, E.Eliav, J.Even, R.Ferrer, V.V.Flambaum, S.Fritzsche, F.Giacoppo, S.Gotz, F.P.Hessberger, M.Huyse, U.Kaldor, O.Kaleja, J.Khuyagbaatar, P.Kunz, M.Laatiaoui, F.Lautenschlager, W.Lauth, A.K.Mistry, E.Minaya Ramirez, W.Nazarewicz, S.G.Porsev, M.S.Safronova, U.I.Safronova, B.Schuetrumpf, P.Van Duppen, T.Walther, C.Wraith, A.Yakushev

Probing Sizes and Shapes of Nobelium Isotopes by Laser Spectroscopy

NUCLEAR MOMENTS 252,253,254No; measured excitation spectra, hyperfine structure components; deduced nuclear magnetic and quadrupole moments, charge radii. Comparison with the state-of-the-art nuclear density functional calculations.

doi: 10.1103/PhysRevLett.120.232503
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Data from this article have been entered in the XUNDL database. For more information, click here.


2012BE32      J.Phys.:Conf.Ser. 337, 012043 (2012)

J.C.Berengut, V.V.Flambaum, V.F.Dmitriev

Quark-mass variation effect on big bang nucleosynthesis

NUCLEAR REACTIONS 3H(d, n), E not given;3He(d, p), E not given; analyzed resonance influence on σ within big bang nucleosynthesis. 3He(α, γ), E not given; calculated 7Be and via β-capture 7Li abundances vs light quark mass.

doi: 10.1088/1742-6596/337/1/012043
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2010ON01      Phys.Rev. C 82, 014320 (2010)

A.Ong, J.C.Berengut, V.V.Flambaum

Effect of spin-orbit nuclear charge density corrections due to the anomalous magnetic moment on halonuclei

NUCLEAR STRUCTURE 6,8He, 6,7,8,9,11Li, 7Be; calculated spin-orbit contribution to nucleon charge density of halo nuclei; deduced charge radii. Comparison with experimental data, and with theoretical calculations using no-core shell model (NCSM) and Green¬Ěs function Monte Carlo (GFMC) method.

doi: 10.1103/PhysRevC.82.014320
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2009BE53      Phys.Rev.Lett. 102, 210801 (2009)

J.C.Berengut, V.A.Dzuba, V.V.Flambaum, S.G.Porsev

Proposed Experimental Method to Determine α Sensitivity of Splitting between Ground and 7.6 eV Isomeric States in 229Th

RADIOACTIVITY 229Th(IT); calculated energies, field shift constants, isotope shifts, electric-quadrupole hyperfine-structure parameters.

doi: 10.1103/physrevlett.102.210801
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2000BE36      Phys.Rev. C62, 024610 (2000)

J.C.Berengut, V.V.Flambaum, G.F.Gribakin

Unusual Statistics of Interference Effects in Neutron Scattering from Compound Nuclei

doi: 10.1103/PhysRevC.62.024610
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