Inclusive dielectron spectra in p plus p collisions at 3.5 GeV kinetic beam energy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F12%3A00384750" target="_blank" >RIV/61389005:_____/12:00384750 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1140/epja/i2012-12064-y" target="_blank" >http://dx.doi.org/10.1140/epja/i2012-12064-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epja/i2012-12064-y" target="_blank" >10.1140/epja/i2012-12064-y</a>

Result language

angličtina

Original language name

Inclusive dielectron spectra in p plus p collisions at 3.5 GeV kinetic beam energy

Original language description

We present the inclusive invariant mass, transverse momentum and rapidity distributions of dielectrons (e(+)e(-) pairs) in p+p interactions at 3.5 GeV beam kinetic energy. In the vector meson mass region, a distinct peak corresponding to direct omega decays is reconstructed with a 2% mass resolution. The data is compared to predictions from three model calculations. Due to the large acceptance of the HADES apparatus for e(+)e(-) invariant masses above 0.2 GeV/c(2) and for transverse pair momenta p(t) <1 GeV/c, acceptance corrections are, to a large extent, model independent. This allows us to extract from dielectron data for the first time at this energy the inclusive production cross-sections for light vector mesons. Inclusive production cross-sections for pi(0) and eta mesons are also reported. The obtained results will serve as an important reference for the study of vector meson production in proton-nucleus and heavy-ion collisions. Furthermore, using this data, an improved value

Czech name

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Czech description

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Type

J_x - 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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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Physical Journal A

ISSN

1434-6001

e-ISSN

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Volume of the periodical

48

Issue of the periodical within the volume

5

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

1-11

UT code for WoS article

000304696800011

EID of the result in the Scopus database

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