Maqola

Charge radii and electromagnetic moments of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mmultiscripts> <mml:mi>Bi</mml:mi> <mml:mprescripts/> <mml:none/> <mml:mrow> <mml:mn>214</mml:mn> <mml:mo>−</mml:mo> <mml:mn>218</mml:mn> </mml:mrow> </mml:mmultiscripts> </mml:math> : Exploring the “southern” border of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>Z</mml:mi> <mml:mo>></mml:mo> <mml:mn>82</mml:mn> </mml:mrow> </mml:math> octupole-deformation region

A. E. BarzakhAffiliated with an institute covered by a cooperation agreement with CERN at the time of the experimentA. N. AndreyevAdvanced Science Research CenterZhenxing YueUniversity of YorkL. NiesCERNM. D. SeliverstovAffiliated with an institute covered by a cooperation agreement with CERN at the time of the experimentJ. G. CubissUniversity of YorkA. AlgoraCSIC - Universidad de ValenciaB. AndelComenius University in BratislavaS. AntalicComenius University in BratislavaM. Al MontheryCollege of Applied SciencesD. AtanasovCERNJ. BenitoUniversidad Complutense de MadridG. BenzoniIstituto Nazionale di Fisica Nucleare, Sezione di MilanoT. BerryUniversity of SurreyM. L. BissellThe University of ManchesterK. BlaumMax-Planck-Institut für KernphysikM. J. G. BorgeInstituto de Estructura de la Materia, CSICK. ChrysalidisCERNC. Clisu“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringT. E. CocoliosKU LeuvenC. Costache“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringT. Day GoodacreCERNG. J. Farooq-SmithKU LeuvenД. В. ФедоровAffiliated with an institute covered by a cooperation agreement with CERN at the time of the experimentV. N. FedosseevCERNL. M. FraileUniversidad Complutense de MadridH. O. U. FynboAarhus UniversityVadim GadelshinJohannes Gutenberg-Universität of MainzL. P. GaffneyUniversity of the West of ScotlandR. F. García RuízThe University of ManchesterC. GranadosCERNP. T. GreenleesUniversity of JyväskyläR. D. HardingCERNL. J. Harkness-BrennanUniversity of LiverpoolR. HeinkeCERNA. HerlertFAIRM. HuyseKU LeuvenA. IllanaIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di LegnaroJ. JolieUniversität zu KölnD. S. JudsonUniversity of LiverpoolJ. KarlsCERNJ. KonkiUniversity of JyväskyläP. LarmonierCERNI. LazarusSTFC DaresburyD. LeimbachCERNR. Lică“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringZhong LiuInstitute of Modern PhysicsD. LunneyCSNSM-CNRSK. M. LynchCERNM. MadurgaUniversity of TennesseeV. ManeaCERNN. Mărginean“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringR. Mărginean“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringB. A. MarshCERNC. Mihai“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringP. L. MolkanovAffiliated with an institute covered by a cooperation agreement with CERN at the time of the experimentP. MošaťComenius University in BratislavaM. MougeotCERNJ. R. MuriasUniversidad Complutense de MadridE. NácherCSIC - Universidad de ValenciaA. Negreţ“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringD. NeidherrGSI Helmholtzzentrum für SchwerionenforschungR. D. PageUniversity of LiverpoolS. Pascu“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringA. PereaInstituto de Estructura de la Materia, CSICV. PucknellSTFC DaresburyP. RahkilaUniversity of JyväskyläC. RaisonUniversity of YorkE. RapisardaCERNK. RezynkinaKU LeuvenM. RosenbuschRIKEN Nishina CenterR. E. RosselCERNS. RotheCERNV. Sánchez-TemblequeUniversidad Complutense de MadridK. SchomackerUniversität zu KölnL. SchweikhardC. SeiffertCERNS. SelsKU LeuvenC. Sotty“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringL. Stan“Horia Hulubei” National Institute for R & D in Physics and Nuclear EngineeringM. StryjczykInstitut Laue-LangevinDominik StuderJohannes Gutenberg-Universität of MainzJ SundbergCERNC. SürderTechnische Universität DarmstadtO. TengbladInstituto de Estructura de la Materia, CSICP. Van DuppenKU LeuvenV. VediaUniversidad Complutense de MadridM. VerlindeKU LeuvenS. VíñalsInstituto de Estructura de la Materia, CSICN. WarrUniversität zu KölnA. WelkerCERNF. WienholtzCERNR. WolfMax-Planck-Institut für Kernphysik

Physical review. Cjournal2025lv

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Annotatsiya

The changes in the mean-squared charge radii relative to <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"> <a:mmultiscripts> <a:mi>Bi</a:mi> <a:mn>126</a:mn> <a:none/> <a:mprescripts/> <a:none/> <a:mn>209</a:mn> </a:mmultiscripts> </a:math> ( <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"> <b:mrow> <b:mi>δ</b:mi> <b:msup> <b:mrow> <b:mo>〈</b:mo> <b:msup> <b:mi>r</b:mi> <b:mn>2</b:mn> </b:msup> <b:mo>〉</b:mo> </b:mrow> <b:mrow> <b:mi>N</b:mi> <b:mo>,</b:mo> <b:mn>126</b:mn> </b:mrow> </b:msup> </b:mrow> </b:math> ) and the magnetic dipole and electric quadrupole moments in <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"> <c:mmultiscripts> <c:mi>Bi</c:mi> <c:mprescripts/> <c:none/> <c:mrow> <c:mn>214</c:mn> <c:mo>−</c:mo> <c:mn>218</c:mn> </c:mrow> </c:mmultiscripts> </c:math> have been measured using the in-source resonance-ionization spectroscopy technique at ISOLDE (CERN). Magnetic moments of odd-odd bismuth nuclei have been analyzed by the additivity relation. Previous tentative spin-parity and configuration assignments based on the <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"> <d:mi>β</d:mi> </d:math> -decay feeding patterns have been supported. A normal odd-even staggering in charge radii of bismuth isotopes with <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"> <e:mrow> <e:mi>N</e:mi> <e:mo>></e:mo> <e:mn>126</e:mn> </e:mrow> </e:math> has been observed. The new data for the <f:math xmlns:f="http://www.w3.org/1998/Math/MathML"> <f:mrow> <f:mi>δ</f:mi> <f:mo>〈</f:mo> <f:msup> <f:mi>r</f:mi> <f:mn>2</f:mn> </f:msup> <f:mo>〉</f:mo> </f:mrow> </f:math> of bismuth isotopes allow a study of the isotonic dependencies in the charge radii, revealing jumps in <g:math xmlns:g="http://www.w3.org/1998/Math/MathML"> <g:mrow> <g:mi>δ</g:mi> <g:msup> <g:mrow> <g:mo>〈</g:mo> <g:msup> <g:mi>r</g:mi> <g:mn>2</g:mn> </g:msup> <g:mo>〉</g:mo> </g:mrow> <g:mrow> <g:mn>132</g:mn> <g:mo>,</g:mo> <g:mn>126</g:mn> </g:mrow> </g:msup> </g:mrow> </g:math> and <h:math xmlns:h="http://www.w3.org/1998/Math/MathML"> <h:mrow> <h:mi>δ</h:mi> <h:msup> <h:mrow> <h:mo>〈</h:mo> <h:msup> <h:mi>r</h:mi> <h:mn>2</h:mn> </h:msup> <h:mo>〉</h:mo> </h:mrow> <h:mrow> <h:mn>134</h:mn> <h:mo>,</h:mo> <h:mn>126</h:mn> </h:mrow> </h:msup> </h:mrow> </h:math> at <i:math xmlns:i="http://www.w3.org/1998/Math/MathML"> <i:mrow> <i:mi>Z</i:mi> <i:mo>=</i:mo> <i:mn>84</i:mn> </i:mrow> </i:math> . This pattern could be explained by a sudden onset of octupole deformation at <j:math xmlns:j="http://www.w3.org/1998/Math/MathML"> <j:mrow> <j:mi>N</j:mi> <j:mo>=</j:mo> <j:mn>132</j:mn> </j:mrow> </j:math> and 134 when going from polonium ( <k:math xmlns:k="http://www.w3.org/1998/Math/MathML"> <k:mrow> <k:mi>Z</k:mi> <k:mo>=</k:mo> <k:mn>84</k:mn> </k:mrow> </k:math> ) to astatine ( <l:math xmlns:l="http://www.w3.org/1998/Math/MathML"> <l:mrow> <l:mi>Z</l:mi> <l:mo>=</l:mo> <l:mn>85</l:mn> </l:mrow> </l:math> ).

Mavzular

Nuclear physics research studies Quantum Chromodynamics and Particle Interactions High-pressure geophysics and materials

Identifikatorlar

DOI: 10.1103/sltw-g4d6

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