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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Pasqualato, G. et al; Domingo-Pardo, C.; Gadea, A. |
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Title |
Shape evolution in even-mass 98-104Zr isotopes via lifetime measurements using the γ γ-coincidence technique |
Type |
Journal Article |
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Year |
2023 |
Publication |
European Physical Journal A |
Abbreviated Journal |
Eur. Phys. J. A |
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Volume |
59 |
Issue |
11 |
Pages |
276 - 13pp |
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Abstract |
The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first 2(+) state and the increase in the transition strength B(E2; 2(1)(+) -> 0(1)(+) ) going from Zr-98 to Zr-100 has been the first example of “quantum phase transition” in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the gamma gamma-coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in Zr98-104 carried out to extract reduced transition probabilities. The new lifetime values in gamma gamma-coincidence and gamma-single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on the Hartree-Fock- Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data. |
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Address |
[Pasqualato, G.; Ljungvall, J.; Georgiev, G.; Korichi, A.; Ralet, D.; Verney, D.] Univ Paris Saclay, CNRS, IN2P3, IJCLab, Orsay, France, Email: giorgia.pasqualato.1@gmail.com |
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Springer |
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English |
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ISSN |
1434-6001 |
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Notes |
WOS:001107209400002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
5852 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Particle Data Group (Zyla, P.A. et al); Hernandez-Rey, J.J.; Pich, A. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Review of Particle Physics |
Type |
Journal Article |
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Year |
2020 |
Publication |
Progress of Theoretical and Experimental Physics |
Abbreviated Journal |
Prog. Theor. Exp. Phys. |
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Volume |
2020 |
Issue |
8 |
Pages |
083C01 - 2093pp |
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Abstract |
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,324 new measurements from 878 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle properties and search limits are listed in Summary Tables. We give numerous tables, figures, formulae, and reviews of topics such as Higgs Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology, Particle Detectors, Colliders, Probability and Statistics. Among the 120 reviews are many that are new or heavily revised, including a new review on High Energy Soft QCD and Diffraction and one on the Determination of CKM Angles from B Hadrons. The Review is divided into two volumes. Volume 1 includes the Summary Tables and 98 review articles. Volume 2 consists of the Particle Listings and contains also 22 reviews that address specific aspects of the data presented in the Listings. The complete Review (both volumes) is published online on the website of the Particle Data Group (pdg.lbl.gov) and in a journal. Volume 1 is available in print as the PDG Book. A Particle Physics Booklet with the Summary Tables and essential tables, figures, and equations from selected review articles is available in print and as a web version optimized for use on phones as well as an Android app. |
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Address |
[Zyla, P. A.; Barnett, R. M.; Beringer, J.; Dahl, O.; Dwyer, D. A.; Groom, D. E.; Lin, C-J; Lugovsky, K. S.; Pianori, E.; Robinson, D. J.; Wohl, C. G.; Yao, W-M; Bauer, C. W.; Cahn, R. N.; Ligeti, Z.; Ramani, H.; Smoot, G. F.; White, M.; Anderson, J.; Schaffner, P.] Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA |
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Oxford Univ Press Inc |
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English |
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2050-3911 |
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Notes |
WOS:000593152600001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
4625 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Particle Data Group (Workman, R.L. et al); Hernandez-Rey, J.J.; Pich, A. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Review of Particle Physics |
Type |
Journal Article |
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Year |
2022 |
Publication |
Progress of Theoretical and Experimental Physics |
Abbreviated Journal |
Prog. Theor. Exp. Phys. |
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Volume |
2022 |
Issue |
8 |
Pages |
083C01 - 2270pp |
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Keywords |
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Abstract |
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,143 new measurements from 709 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle properties and search limits are listed in Summary Tables. We give numerous tables, figures, formulae, and reviews of topics such as Higgs Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology, Particle Detectors, Colliders, Probability and Statistics. Among the 120 reviews are many that are new or heavily revised, including a new review on Machine Learning, and one on Spectroscopy of Light Meson Resonances. The Review is divided into two volumes. Volume 1 includes the Summary Tables and 97 review articles. Volume 2 consists of the Particle Listings and contains also 23 reviews that address specific aspects of the data presented in the Listings. The complete Review (both volumes) is published online on the website of the Particle Data Group (pdg.lbl.gov) and in a journal. Volume 1 is available in print as the PDG Book. A Particle Physics Booklet with the Summary Tables and essential tables, figures, and equations from selected review articles is available in print, as a web version optimized for use on phones, and as an Android app. |
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Address |
[Workman, R. L.] George Washington Univ, Dept Phys, Washington, DC 20052 USA |
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Oxford Univ Press Inc |
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English |
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2050-3911 |
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Notes |
WOS:000841419600001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
5355 |
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Permanent link to this record |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Park, B.Y.; Paeng, W.G.; Vento, V. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
The inhomogeneous phase of dense skyrmion matter |
Type |
Journal Article |
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Year |
2019 |
Publication |
Nuclear Physics A |
Abbreviated Journal |
Nucl. Phys. A |
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Volume |
989 |
Issue |
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Pages |
231-245 |
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Keywords |
Skyrmion; Dense matter; Phase transition |
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Abstract |
It was predicted qualitatively in ref. [I] that skyrmion matter at low density is stable in an inhomogeneous phase where skyrmions condensate into lumps while the remaining space is mostly empty. The aim of this paper is to proof quantitatively this prediction. In order to construct an inhomogeneous medium we distort the original FCC crystal to produce a phase of planar structures made of skyrmions. We implement mathematically these planar structures by means of the 't Hooft instanton solution using the Atiyah-Manton ansatz. The results of our calculation of the average density and energy confirm the prediction suggesting that the phase diagram of the dense skyrmion matter is a lot more complex than a simple phase transition from the skyrmion FCC crystal lattice to the half-skyrmion CC one. Our results show that skyrmion matter shares common properties with standard nuclear matter developing a skin and leading to a binding energy equation which resembles the Weiszacker mass formula. |
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Address |
[Park, Byung-Yoon] Chungnam Natl Univ, Dept Phys, Daejon 305764, South Korea, Email: bypark@cnu.ac.kr; |
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Elsevier |
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English |
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0375-9474 |
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Notes |
WOS:000478705300016 |
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no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
4098 |
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Author ![sorted by Author field, descending order (down)](img/sort_desc.gif) |
Paredes-Torres, G.; Gutierrez-Guerrer, L.X.; Bashir, A.; Miramontes, A.S. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
First radial excitations of mesons and diquarks in a contact interaction |
Type |
Journal Article |
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Year |
2024 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
109 |
Issue |
11 |
Pages |
114006 - 12pp |
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Abstract |
We present a calculation for the masses of the first radially excited states of 40 mesons and diquarks made up of u , d , s , c , and b quarks, including states that contain one or both heavy quarks. To this end, we employ a combined analysis of the Bethe-Salpeter and Schwinger-Dyson equations within a self-consistent and symmetry-preserving vector-vector contact interaction. The same set of parameters describes ground and excited states of mesons and their diquark partners. The wave function of the first radial excitation contains a zero whose location is correlated with an additional parameter d F which is a function of dressed quark masses. Our results satisfy the equal spacing rules given by the Gell-Mann Okubo mass relations. Wherever possible, we make comparisons of our findings with known experimental observations as well as theoretical predictions of several other models and approaches including lattice quantum chromodynamics, finding a very good agreement. We report predictions for a multitude of radial excitations not yet observed in experiments. |
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Address |
[Paredes-Torres, G.; Gutierrez-Guerrer, L. X.; Bashir, A.; Miramontes, angel S.] Univ Michoacana, Inst Fis & Matemat, Edificio C-3,Ciudad Univ, Morelia 58040, Michoacan, Mexico, Email: gustavo.paredes@umich.mx; |
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Publisher |
Amer Physical Soc |
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English |
Summary Language |
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Edition |
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ISSN |
2470-0010 |
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Notes |
WOS:001251290500007 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6206 |
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Permanent link to this record |