Clustering in alpha conjugate nuclei

K. Schmidt; E. J. Kim; S. Wuenschel; M. Barbui; J. B. Natowitz; K. Hagel; R. Wada; C. Bottosso; G. Giuliani; L. Qin; Z. Kohley; A. Bonasera; Z. Chen; M. Huang; J. Wang; H. Zheng; S. Kowalski; M. R. D. Rodrigues; D. Fabris; S. Moretto; S. Pesente; G. Viesti; M. Cinausero; G. Prete; G. Nebbia; T. Keutgen; Y. El Masri; Z. Majka; Y. G. Ma

doi:10.1051/epjconf/20158800024

All issues

Volume 88 (2015)

EPJ Web of Conferences, 88 (2015) 00024

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 88, 2015 IWM-EC 2014 – International Workshop on Multi facets of EoS and Clustering


Article Number		00024
Number of page(s)		8
DOI		https://doi.org/10.1051/epjconf/20158800024
Published online		24 April 2015

EPJ Web of Conferences 88, 00024 (2015)
https://doi.org/10.1051/epjconf/20158800024

Clustering in alpha conjugate nuclei

K. Schmidt¹, E. J. Kim¹^,2, S. Wuenschel¹, M. Barbui¹, J. B. Natowitz¹, K. Hagel¹, R. Wada³^,1, C. Bottosso¹, G. Giuliani¹, L. Qin¹, Z. Kohley¹, A. Bonasera¹, Z. Chen¹, M. Huang³, J. Wang³, H. Zheng¹, S. Kowalski⁴, M. R. D. Rodrigues¹, D. Fabris⁵, S. Moretto⁵, S. Pesente⁵, G. Viesti⁵, M. Cinausero⁶, G. Prete⁶, G. Nebbia⁵, T. Keutgen⁷, Y. El Masri⁷, Z. Majka⁸ and Y. G. Ma⁹

¹ Cyclotron Institute, Texas A&M University, College Station, TX, USA
² Chonbuk National University, Jeonju, Korea
³ IMP HIRFL, Chinese Academy of Sciences, Lanzhou, 730000, China
⁴ Institute of Physics, Silesia University, Katowice, Poland
⁵ Università di Padova and INFN, Sezione di Padova, Padova, Italy
⁶ INFN-Laboratori Nazionali di Legnaro, Legnaro (PD), Italy
⁷ Université Catholique de Louvain, B-1348 Louvain-Neuve, Belgium
⁸ Smoluchowski Inst. of Physics, Jagiellonian University, Kraków, Poland
⁹ Shanghai Institute of Nuclear Research, Shanghai 201800, China

Published online: 24 April 2015

Abstract

Characteristics of the decay of alpha like nuclei produced in various reactions with alpha conjugate nuclei are discussed. We observe a significant number of events in which a large fraction of the system breaks up into alpha-conjugate nuclei. Lighter fragments in the various decay channels appear to originate from a neck-like region between 4 and 7 cm/ns whereas the heavier fragments appear to originate from velocities near the beam velocity. This behavior is consistent with a hierarchy effect that cannot be explained by statistical processes.

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