Dilepton analysis in the HADES spectrometer for C-12+C-12 at 2 AGEV
Result description
The identification of the light mesons in the HADES spectrometer is based on an invariant mass reconstruction of their decay into e(+)e(-) pairs. In the dilepton (e(+)e(-)) signal reconstruction, particularly important is the reduction of a huge combinatorial background arising from wrong combinations of e(+) and e(-) to unlike sign pairs. Methods of the dilepton signal and combinatorial background reconstruction in the HADES spectrometer will be presented.
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Dilepton analysis in the HADES spectrometer for C-12+C-12 at 2 AGEV
Original language description
The identification of the light mesons in the HADES spectrometer is based on an invariant mass reconstruction of their decay into e(+)e(-) pairs. In the dilepton (e(+)e(-)) signal reconstruction, particularly important is the reduction of a huge combinatorial background arising from wrong combinations of e(+) and e(-) to unlike sign pairs. Methods of the dilepton signal and combinatorial background reconstruction in the HADES spectrometer will be presented.
Czech name
Analyza dileptonu v spektrometru HADES pro C-12 + C-12 pri 2 AGeV
Czech description
Dielektronový spektrometr HADES začal pracovat v GSI Darmstadt. Fyzikální program spočívá ve studiu změn vlastností vektorových mezonů v jaderném médiu, pomocí jejich rozpadu na elektron a pozitron. Jsou prezentovány první výsledky pro reakci C-12+C-12 při energii 2 A GeV.
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Result continuities
Project
IAA1048304: Dilepton production in ion-ion collisions and pion induced reactions
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Modern Physics. A
ISSN
0217-751X
e-ISSN
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Volume of the periodical
20
Issue of the periodical within the volume
2/3
Country of publishing house
SG - SINGAPORE
Number of pages
4
Pages from-to
602-605
UT code for WoS article
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EID of the result in the Scopus database
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Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BG - Nuclear, atomic and molecular physics, accelerators
Year of implementation
2005