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Light hyper- and anti-nuclei production at the LHC measured with ALICE

<!--HTML--><p>The high collision energies reached at the LHC lead to significant production yields of light (anti-) and hyper-nuclei in proton-proton, proton-lead and, in particular, lead-lead collisions. The excellent particle identification capabilities of the ALICE apparatus, based on...

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Autor principal: Kalweit, Alexander Philipp
Lenguaje:eng
Publicado: 2014
Materias:
Acceso en línea:http://cds.cern.ch/record/1742030
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author Kalweit, Alexander Philipp
author_facet Kalweit, Alexander Philipp
author_sort Kalweit, Alexander Philipp
collection CERN
description <!--HTML--><p>The high collision energies reached at the LHC lead to significant production yields of light (anti-) and hyper-nuclei in proton-proton, proton-lead and, in particular, lead-lead collisions. The excellent particle identification capabilities of the ALICE apparatus, based on the specific energy loss in the Time Projection Chamber and the velocity information obtained with the Time-Of-Flight detector, allow for the detection of these rarely produced particles. Furthermore, the Inner Tracking System gives the possibility to separate primary nuclei from those originating from the decay of hyper-nuclei. One example is the hypertriton which is reconstructed in the decay channel <sup>3</sup><sub>Lambda</sub>H -&gt; <sup>3</sup>H + pi. We present results on the production of stable nuclei and anti-nuclei in Pb--Pb and lighter collision systems. Hypernuclei production rates in Pb--Pb will also be shown. All results are compared with predictions for the production in thermal (statistical) models and alternatives which are based on coalescence mechanisms. The results obtained provide a solid basis for searches for lighter exotica such as the H-Dibaryon.</p>
id cern-1742030
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17420302022-11-02T22:33:20Zhttp://cds.cern.ch/record/1742030engKalweit, Alexander PhilippLight hyper- and anti-nuclei production at the LHC measured with ALICELight hyper- and anti-nuclei production at the LHC measured with ALICELHC Seminar<!--HTML--><p>The high collision energies reached at the LHC lead to significant production yields of light (anti-) and hyper-nuclei in proton-proton, proton-lead and, in particular, lead-lead collisions. The excellent particle identification capabilities of the ALICE apparatus, based on the specific energy loss in the Time Projection Chamber and the velocity information obtained with the Time-Of-Flight detector, allow for the detection of these rarely produced particles. Furthermore, the Inner Tracking System gives the possibility to separate primary nuclei from those originating from the decay of hyper-nuclei. One example is the hypertriton which is reconstructed in the decay channel <sup>3</sup><sub>Lambda</sub>H -&gt; <sup>3</sup>H + pi. We present results on the production of stable nuclei and anti-nuclei in Pb--Pb and lighter collision systems. Hypernuclei production rates in Pb--Pb will also be shown. All results are compared with predictions for the production in thermal (statistical) models and alternatives which are based on coalescence mechanisms. The results obtained provide a solid basis for searches for lighter exotica such as the H-Dibaryon.</p> oai:cds.cern.ch:17420302014
spellingShingle LHC Seminar
Kalweit, Alexander Philipp
Light hyper- and anti-nuclei production at the LHC measured with ALICE
title Light hyper- and anti-nuclei production at the LHC measured with ALICE
title_full Light hyper- and anti-nuclei production at the LHC measured with ALICE
title_fullStr Light hyper- and anti-nuclei production at the LHC measured with ALICE
title_full_unstemmed Light hyper- and anti-nuclei production at the LHC measured with ALICE
title_short Light hyper- and anti-nuclei production at the LHC measured with ALICE
title_sort light hyper- and anti-nuclei production at the lhc measured with alice
topic LHC Seminar
url http://cds.cern.ch/record/1742030
work_keys_str_mv AT kalweitalexanderphilipp lighthyperandantinucleiproductionatthelhcmeasuredwithalice