Experimental evidence for chirality in the odd-A 105Rh

J. Timár; P. Joshi; K. Starosta; V. I. Dimitrov; D. B. Fossan; J. Molnár; D. Sohler; R. Wadsworth; A. Algora; P. Bednarczyk; D. Curien; Zs Dombrádi; G. Duchene; A. Gizon; J. Gizon; D. G. Jenkins; T. Koike; A. Krasznahorkay; E. S. Paul; P. M. Raddon; G. Rainovski; J. N. Scheurer; A. J. Simons; C. Vaman; A. R. Wilkinson; L. Zolnai; S. Frauendorf

doi:10.1016/j.physletb.2004.07.050

Experimental evidence for chirality in the odd-A ¹⁰⁵Rh

J. Timár, P. Joshi, K. Starosta, V. I. Dimitrov, D. B. Fossan, J. Molnár, D. Sohler, R. Wadsworth, A. Algora, P. Bednarczyk, D. Curien, Zs Dombrádi, G. Duchene, A. Gizon, J. Gizon, D. G. Jenkins, T. Koike, A. Krasznahorkay, E. S. Paul, P. M. RaddonG. Rainovski, J. N. Scheurer, A. J. Simons, C. Vaman, A. R. Wilkinson, L. Zolnai, S. Frauendorf

Research output: Contribution to journal › Article › peer-review

108 Citations (Scopus)

Abstract

High-spin states in ¹⁰⁵Rh were populated by the ⁹⁶Zr( ¹³C, p3n) reaction at beam energies of 51 and 58 MeV, and studied using the EUROBALL IV γ-ray spectrometer and the DIAMANT charged particle array. A pair of nearly degenerate ΔI=1 three-quasiparticle bands with the same spins and parity have been observed. Comparison of the experimental results with tilted axis cranking calculations confirms the chiral character of the two bands, while arguments based on the excitation of particles within the πg9/2ν(h11/2)2 configuration of the yrast band and comparison with the previously observed γ band exclude the other possible interpretations. This is the first experimental evidence for three-quasiparticle chiral structure in the A ∼ 100 region, and the first simultaneous observation of a γ band and chiral partner bands in one nucleus.

Original language	English
Pages (from-to)	178-187
Number of pages	10
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	598
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2004.07.050
Publication status	Published - 2004 Sep 30
Externally published	Yes

Keywords

Chiral partner bands
Core-quasiparticle coupling calculations
Three-quasiparticle configuration
Tilted axis cranking

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2004.07.050

Cite this

Timár, J., Joshi, P., Starosta, K., Dimitrov, V. I., Fossan, D. B., Molnár, J., Sohler, D., Wadsworth, R., Algora, A., Bednarczyk, P., Curien, D., Dombrádi, Z., Duchene, G., Gizon, A., Gizon, J., Jenkins, D. G., Koike, T., Krasznahorkay, A., Paul, E. S., ... Frauendorf, S. (2004). Experimental evidence for chirality in the odd-A ¹⁰⁵Rh. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 598(3-4), 178-187. https://doi.org/10.1016/j.physletb.2004.07.050

Timár, J, Joshi, P, Starosta, K, Dimitrov, VI, Fossan, DB, Molnár, J, Sohler, D, Wadsworth, R, Algora, A, Bednarczyk, P, Curien, D, Dombrádi, Z, Duchene, G, Gizon, A, Gizon, J, Jenkins, DG, Koike, T, Krasznahorkay, A, Paul, ES, Raddon, PM, Rainovski, G, Scheurer, JN, Simons, AJ, Vaman, C, Wilkinson, AR, Zolnai, L & Frauendorf, S 2004, 'Experimental evidence for chirality in the odd-A ¹⁰⁵Rh', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 598, no. 3-4, pp. 178-187. https://doi.org/10.1016/j.physletb.2004.07.050

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title = "Experimental evidence for chirality in the odd-A 105Rh",

abstract = "High-spin states in 105Rh were populated by the 96Zr( 13C, p3n) reaction at beam energies of 51 and 58 MeV, and studied using the EUROBALL IV γ-ray spectrometer and the DIAMANT charged particle array. A pair of nearly degenerate ΔI=1 three-quasiparticle bands with the same spins and parity have been observed. Comparison of the experimental results with tilted axis cranking calculations confirms the chiral character of the two bands, while arguments based on the excitation of particles within the πg9/2ν(h11/2)2 configuration of the yrast band and comparison with the previously observed γ band exclude the other possible interpretations. This is the first experimental evidence for three-quasiparticle chiral structure in the A ∼ 100 region, and the first simultaneous observation of a γ band and chiral partner bands in one nucleus.",

keywords = "Chiral partner bands, Core-quasiparticle coupling calculations, Three-quasiparticle configuration, Tilted axis cranking",

author = "J. Tim{\'a}r and P. Joshi and K. Starosta and Dimitrov, {V. I.} and Fossan, {D. B.} and J. Moln{\'a}r and D. Sohler and R. Wadsworth and A. Algora and P. Bednarczyk and D. Curien and Zs Dombr{\'a}di and G. Duchene and A. Gizon and J. Gizon and Jenkins, {D. G.} and T. Koike and A. Krasznahorkay and Paul, {E. S.} and Raddon, {P. M.} and G. Rainovski and Scheurer, {J. N.} and Simons, {A. J.} and C. Vaman and Wilkinson, {A. R.} and L. Zolnai and S. Frauendorf",

note = "Funding Information: This work was supported in part by the European Community—Access to Research Infrastructures action of the Improving Human Potential Programme (contract EUROVIV: HPRI-CT-1999-00078), the Hungarian Scientific Research Fund, OTKA (contract numbers T046901 and T038404), the EPSRC in the UK, the IN2P3-CNRS in France, DOE grant DE-FG02-95ER40934, the Bolyai J{\'a}nos Foundation, and by the NAS under the COBASE program supported by contract number INT-0002341 from the NSF.",

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doi = "10.1016/j.physletb.2004.07.050",

language = "English",

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TY - JOUR

T1 - Experimental evidence for chirality in the odd-A 105Rh

AU - Timár, J.

AU - Joshi, P.

AU - Starosta, K.

AU - Dimitrov, V. I.

AU - Fossan, D. B.

AU - Molnár, J.

AU - Sohler, D.

AU - Wadsworth, R.

AU - Algora, A.

AU - Bednarczyk, P.

AU - Curien, D.

AU - Dombrádi, Zs

AU - Duchene, G.

AU - Gizon, A.

AU - Gizon, J.

AU - Jenkins, D. G.

AU - Koike, T.

AU - Krasznahorkay, A.

AU - Paul, E. S.

AU - Raddon, P. M.

AU - Rainovski, G.

AU - Scheurer, J. N.

AU - Simons, A. J.

AU - Vaman, C.

AU - Wilkinson, A. R.

AU - Zolnai, L.

AU - Frauendorf, S.

N1 - Funding Information: This work was supported in part by the European Community—Access to Research Infrastructures action of the Improving Human Potential Programme (contract EUROVIV: HPRI-CT-1999-00078), the Hungarian Scientific Research Fund, OTKA (contract numbers T046901 and T038404), the EPSRC in the UK, the IN2P3-CNRS in France, DOE grant DE-FG02-95ER40934, the Bolyai János Foundation, and by the NAS under the COBASE program supported by contract number INT-0002341 from the NSF.

PY - 2004/9/30

Y1 - 2004/9/30

N2 - High-spin states in 105Rh were populated by the 96Zr( 13C, p3n) reaction at beam energies of 51 and 58 MeV, and studied using the EUROBALL IV γ-ray spectrometer and the DIAMANT charged particle array. A pair of nearly degenerate ΔI=1 three-quasiparticle bands with the same spins and parity have been observed. Comparison of the experimental results with tilted axis cranking calculations confirms the chiral character of the two bands, while arguments based on the excitation of particles within the πg9/2ν(h11/2)2 configuration of the yrast band and comparison with the previously observed γ band exclude the other possible interpretations. This is the first experimental evidence for three-quasiparticle chiral structure in the A ∼ 100 region, and the first simultaneous observation of a γ band and chiral partner bands in one nucleus.

AB - High-spin states in 105Rh were populated by the 96Zr( 13C, p3n) reaction at beam energies of 51 and 58 MeV, and studied using the EUROBALL IV γ-ray spectrometer and the DIAMANT charged particle array. A pair of nearly degenerate ΔI=1 three-quasiparticle bands with the same spins and parity have been observed. Comparison of the experimental results with tilted axis cranking calculations confirms the chiral character of the two bands, while arguments based on the excitation of particles within the πg9/2ν(h11/2)2 configuration of the yrast band and comparison with the previously observed γ band exclude the other possible interpretations. This is the first experimental evidence for three-quasiparticle chiral structure in the A ∼ 100 region, and the first simultaneous observation of a γ band and chiral partner bands in one nucleus.

KW - Chiral partner bands

KW - Core-quasiparticle coupling calculations

KW - Three-quasiparticle configuration

KW - Tilted axis cranking

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U2 - 10.1016/j.physletb.2004.07.050

DO - 10.1016/j.physletb.2004.07.050

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VL - 598

SP - 178

EP - 187

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

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