Fragmentation of Single-Particle Strength around the Doubly Magic Nucleus Sn 132 and the Position of the 0f5/2 Proton-Hole State in In 131

Vaquero, V.; Jungclaus, A.; Aumann, T.; Tscheuschner, J.; Litvinova, E.V.; Tostevin, J.A.; Baba, H.; Ahn, D.S.; Avigo, R.; Boretzky, K.; Bracco, A.; Caesar, C.; Camera, F.; Chen, S.; Derya, V.; Doornenbal, P.; Endres, J.; Fukuda, N.; Garg, U.; Giaz, A.; Harakeh, M.N.; Heil, M.; Horvat, A.; Ieki, K.; Imai, N.; Inabe, N.; Kalantar-Nayestanaki, N.; Kobayashi, N.; Kondo, Y.; Koyama, S.; Kubo, T.; Martel, I.; Matsushita, M.; Million, B.; Motobayashi, T.; Nakamura, T.; Nakatsuka, N.; Nishimura, M.; Nishimura, S.; Ota, S.; Otsu, H.; Ozaki, T.; Petri, M.; Reifarth, R.; Rodriguez-Sanchez, J.L.; Rossi, D.; Saito, A.T.; Sakurai, H.; Savran, D.; Scheit, H.; Schindler, F.; Schrock, P.; Semmler, D.; Shiga, Y.; Shikata, M.; Shimizu, Y.; Simon, H.; Steppenbeck, D.; Suzuki, H.; Sumikama, T.; Symochko, D.; Syndikus, I.; Takeda, H.; Takeuchi, S.; Taniuchi, R.; Togano, Y.; Tsubota, J.; Wang, H.; Wieland, O.; Yoneda, K.; Zenihiro, J.; Zilges, A.

doi:10.1103/PhysRevLett.124.022501

Spectroscopic factors of neutron-hole and proton-hole states in Sn131 and In131, respectively, were measured using one-nucleon removal reactions from doubly magic Sn132 at relativistic energies. For In131, a 2910(50)-keV γ ray was observed for the first time and tentatively assigned to a decay from a 5/2-state at 3275(50) keV to the known 1/2-level at 365 keV. The spectroscopic factors determined for this new excited state and three other single-hole states provide first evidence for a strong fragmentation of single-hole strength in Sn131 and In131. The experimental results are compared to theoretical calculations based on the relativistic particle-vibration coupling model and to experimental information for single-hole states in the stable doubly magic nucleus Pb208.

Fragmentation of Single-Particle Strength around the Doubly Magic Nucleus Sn 132 and the Position of the 0f5/2 Proton-Hole State in In 131 / V. Vaquero, A. Jungclaus, T. Aumann, J. Tscheuschner, E.V. Litvinova, J.A. Tostevin, H. Baba, D.S. Ahn, R. Avigo, K. Boretzky, A. Bracco, C. Caesar, F. Camera, S. Chen, V. Derya, P. Doornenbal, J. Endres, N. Fukuda, U. Garg, A. Giaz, M.N. Harakeh, M. Heil, A. Horvat, K. Ieki, N. Imai, N. Inabe, N. Kalantar-Nayestanaki, N. Kobayashi, Y. Kondo, S. Koyama, T. Kubo, I. Martel, M. Matsushita, B. Million, T. Motobayashi, T. Nakamura, N. Nakatsuka, M. Nishimura, S. Nishimura, S. Ota, H. Otsu, T. Ozaki, M. Petri, R. Reifarth, J.L. Rodriguez-Sanchez, D. Rossi, A.T. Saito, H. Sakurai, D. Savran, H. Scheit, F. Schindler, P. Schrock, D. Semmler, Y. Shiga, M. Shikata, Y. Shimizu, H. Simon, D. Steppenbeck, H. Suzuki, T. Sumikama, D. Symochko, I. Syndikus, H. Takeda, S. Takeuchi, R. Taniuchi, Y. Togano, J. Tsubota, H. Wang, O. Wieland, K. Yoneda, J. Zenihiro, A. Zilges. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 124:2(2020 Jan 13), pp. 022501.022501-1-022501.022501-8. [10.1103/PhysRevLett.124.022501]

Fragmentation of Single-Particle Strength around the Doubly Magic Nucleus Sn 132 and the Position of the 0f5/2 Proton-Hole State in In 131

Vaquero V.;Jungclaus A.;Aumann T.;Tscheuschner J.;Litvinova E. V.;Tostevin J. A.;Baba H.;Ahn D. S.;R. Avigo;Boretzky K.;A. Bracco;Caesar C.;F. Camera;Chen S.;Derya V.;Doornenbal P.;Endres J.;Fukuda N.;Garg U.;A. Giaz;Harakeh M. N.;Heil M.;Horvat A.;Ieki K.;Imai N.;Inabe N.;Kalantar-Nayestanaki N.;Kobayashi N.;Kondo Y.;Koyama S.;Kubo T.;Martel I.;Matsushita M.;Million B.;Motobayashi T.;Nakamura T.;Nakatsuka N.;Nishimura M.;Nishimura S.;Ota S.;Otsu H.;Ozaki T.;Petri M.;Reifarth R.;Rodriguez-Sanchez J. L.;Rossi D.;Saito A. T.;Sakurai H.;Savran D.;Scheit H.;Schindler F.;Schrock P.;Semmler D.;Shiga Y.;Shikata M.;Shimizu Y.;Simon H.;Steppenbeck D.;Suzuki H.;Sumikama T.;Symochko D.;Syndikus I.;Takeda H.;Takeuchi S.;Taniuchi R.;Togano Y.;Tsubota J.;Wang H.;Wieland O.;Yoneda K.;Zenihiro J.;Zilges A.

2020

Abstract

Spectroscopic factors of neutron-hole and proton-hole states in Sn131 and In131, respectively, were measured using one-nucleon removal reactions from doubly magic Sn132 at relativistic energies. For In131, a 2910(50)-keV γ ray was observed for the first time and tentatively assigned to a decay from a 5/2-state at 3275(50) keV to the known 1/2-level at 365 keV. The spectroscopic factors determined for this new excited state and three other single-hole states provide first evidence for a strong fragmentation of single-hole strength in Sn131 and In131. The experimental results are compared to theoretical calculations based on the relativistic particle-vibration coupling model and to experimental information for single-hole states in the stable doubly magic nucleus Pb208.

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				Settore FIS/04 - Fisica Nucleare e Subnucleare
			
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				13-gen-2020
			
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				PHYSICAL REVIEW LETTERS
			
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				https://dx.doi.org/10.1103/PhysRevLett.124.022501
			
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