Possible study of two-particle transverse momentum correlations in proton-proton and deuteron-deuteron interactions at NICA energies

Мұқаба

Дәйексөз келтіру

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Аннотация

Two particle transverse momentum correlations have been investigated for proton-proton and deuteron-deuteron interactions at center-of-mass energy of NN collisions of 10 GeV. The correlations between Λ-hyperons and К-, π- mesons and protons are calculated in Geant4 FTF and Pythia 6.4 models. It is shown that PT-correlations between Λ-hyperons and strange particles are stronger in the FTF model than in Pythia one. The two particle PT-correlations can be studied at NICA SPD experiment. A study of the two particle correlations can help to clarify the mechanism of quark-gluon string fragmentation.

Толық мәтін

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Авторлар туралы

A. Galoyan

Joint Institute for Nuclear Research

Хат алмасуға жауапты Автор.
Email: galoyan@lxmx00.jinr.ru
Ресей, Dubna, 141980

A. Ribon

European Organization for Nuclear Research

Email: galoyan@lxmx00.jinr.ru
Швейцария, Geneva, CH-1211

V. Uzhinsky

Joint Institute for Nuclear Research

Email: galoyan@lxmx00.jinr.ru
Ресей, Dubna, 141980

Әдебиет тізімі

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Әрекет
1. JATS XML
Жүктеу
2. Fig. 1. Projections of the transverse momenta of π and K mesons onto the direction of the transverse momentum of the Λ hyperon and onto the direction orthogonal to it.

Жүктеу (42KB)
Метадеректер
3. Fig. 2. Dependences of the average values of the longitudinal components of the momenta of associated particles (anti Λ-, proton, K+, K–, π+, π–) in the new coordinate system on the transverse momentum of the Λ-hyperon for proton-proton interactions at an energy in the center-of-mass system of NN collisions of √S = 10 GeV. Calculations are presented using the FTF model (●) and the Pythia model (○) taking into account statistical errors.

Жүктеу (262KB)
Метадеректер
4. Fig. 3. Dependences of the average values of the longitudinal components of the momenta of associated particles (anti Λ-, K0, K+, K–, π+, π–) in the new coordinate system on the transverse momentum of the Λ-hyperon in deuteron-deuteron (○) and proton-proton interactions (●) at an energy in the center-of-mass system of NN collisions of √S = 10 GeV. Calculations using the FTF model taking into account statistical errors are presented.

Жүктеу (263KB)
Метадеректер
5. Fig. 4. Dependences of the average values of the squares of the transverse components of the momenta of associated particles (K0, proton, π+, π–) in the new coordinate system on the transverse momentum of the Λ-hyperon for proton-proton interactions in the Pythia (∆) and FTF (●) models and for deuteron-deuteron interactions (○) at an energy in the center-of-mass system of NN collisions of √S = 10 GeV. The calculations are presented taking into account statistical errors.

Жүктеу (296KB)
Метадеректер

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