Associate K^0 production in p+p collisions at 3.5 GeV: The role of Delta(1232)++

G. Agakishiev; O. Arnold; D. Belver; A. Belyaev; J. C. Berger-Chen; A. Blanco; M. Böhmer; J. L. Boyard; P. Cabanelas; S. Chernenko; A. Dybczak; E. Epple; L. Fabbietti; O. Fateev; P. Finocchiaro; P. Fonte; J. Friese; I. Fröhlich; T. Galatyuk; J. A. Garzón; R. Gernhäuser; K. Göbel; M. Golubeva; D. González-Díaz; F. Guber; M. Gumberidze; T. Heinz; T. Hennino; R. Holzmann; A. Ierusalimov; I. Iori; A. Ivashkin; M. Jurkovic; B. Kämpfer; T. Karavicheva; I. Koenig; W. Koenig; B. W. Kolb; G. Korcyl; G. Kornakov; R. Kotte; A. Krása; F. Krizek; R. Krücken; H. Kuc; W. Kühn; A. Kugler; T. Kunz; A. Kurepin; V. Ladygin; R. Lalik; K. Lapidus; A. Lebedev; L. Lopes; M. Lorenz; L. Maier; A. Mangiarotti; J. Markert; V. Metag; J. Michel; C. Müntz; R. Münzer; L. Naumann; Y. C. Pachmayer; M. Palka; Y. Parpottas; V. Pechenov; O. Pechenova; J. Pietraszko; W. Przygoda; B. Ramstein; A. Reshetin; A. Rustamov; A. Sadovsky; P. Salabura; A. Schmah; E. Schwab; J. Siebenson; Yu. G. Sobolev; B. Spruck; H. Ströbele; J. Stroth; C. Sturm; A. Tarantola; K. Teilab; P. Tlusty; M. Traxler; H. Tsertos; T. Vasiliev; V. Wagner; M. Weber; C. Wendisch; J. Wüstenfeld; S. Yurevich; Y. Zanevsky

doi:10.1103/PhysRevC.90.015202

Journal Articles Physical Review C Year : 2014

Associate K^0 production in p+p collisions at 3.5 GeV: The role of Delta(1232)++

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G. Agakishiev

Function : Author

O. Arnold

Function : Author

D. Belver

Function : Author

A. Belyaev

Function : Author

J. C. Berger-Chen

Function : Author

A. Blanco

Function : Author

M. Böhmer

Function : Author

J. L. Boyard

Function : Author

P. Cabanelas

Function : Author

S. Chernenko

Function : Author

A. Dybczak

Function : Author

E. Epple

Function : Author

L. Fabbietti

Function : Author

O. Fateev

Function : Author

P. Finocchiaro

Function : Author

P. Fonte

Function : Author

J. Friese

Function : Author

I. Fröhlich

Function : Author

T. Galatyuk

Function : Author

J. A. Garzón

Function : Author

R. Gernhäuser

Function : Author

K. Göbel

Function : Author

M. Golubeva

Function : Author

D. González-Díaz

Function : Author

F. Guber

Function : Author

M. Gumberidze

Function : Author

T. Heinz

Function : Author
PersonId : 761809
ORCID : 0000-0003-1365-9464
IdRef : 242263097

T. Hennino

Function : Author

Institut de Physique Nucléaire d'Orsay

R. Holzmann

Function : Author

A. Ierusalimov

Function : Author

I. Iori

Function : Author

A. Ivashkin

Function : Author

M. Jurkovic

Function : Author

B. Kämpfer

Function : Author

T. Karavicheva

Function : Author

I. Koenig

Function : Author

W. Koenig

Function : Author

B. W. Kolb

Function : Author

G. Korcyl

Function : Author

G. Kornakov

Function : Author

R. Kotte

Function : Author

A. Krása

Function : Author

F. Krizek

Function : Author

R. Krücken

Function : Author
PersonId : 755533
ORCID : 0000-0002-2755-8042

H. Kuc

Function : Author

Institut de Physique Nucléaire d'Orsay

W. Kühn

Function : Author

A. Kugler

Function : Author

T. Kunz

Function : Author

A. Kurepin

Function : Author

V. Ladygin

Function : Author

R. Lalik

Function : Author

K. Lapidus

Function : Author

A. Lebedev

Function : Author

L. Lopes

Function : Author

M. Lorenz

Function : Author

L. Maier

Function : Author

A. Mangiarotti

Function : Author

J. Markert

Function : Author

V. Metag

Function : Author

J. Michel

Function : Author

C. Müntz

Function : Author

R. Münzer

Function : Author

L. Naumann

Function : Author

Y. C. Pachmayer

Function : Author

M. Palka

Function : Author

Y. Parpottas

Function : Author

V. Pechenov

Function : Author

O. Pechenova

Function : Author

J. Pietraszko

Function : Author

W. Przygoda

Function : Author

B. Ramstein

Function : Author

Institut de Physique Nucléaire d'Orsay

A. Reshetin

Function : Author

A. Rustamov

Function : Author

A. Sadovsky

Function : Author

P. Salabura

Function : Author

A. Schmah

Function : Author

E. Schwab

Function : Author

J. Siebenson

Function : Author

Yu. G. Sobolev

Function : Author

B. Spruck

Function : Author

H. Ströbele

Function : Author

J. Stroth

Function : Author

C. Sturm

Function : Author

A. Tarantola

Function : Author

K. Teilab

Function : Author

P. Tlusty

Function : Author

M. Traxler

Function : Author

H. Tsertos

Function : Author

T. Vasiliev

Function : Author

V. Wagner

Function : Author

M. Weber

Function : Author

C. Wendisch

Function : Author

J. Wüstenfeld

Function : Author

S. Yurevich

Function : Author

Y. Zanevsky

Function : Author

Abstract

An exclusive analysis of the 4-body final states $\mathrm{\Lambda + p + \pi^{+} + K^{0}}$ and $\mathrm{\Sigma^{0} + p + \pi^{+} + K^{0}}$ measured with HADES for p+p collisions at a beam kinetic energy of 3.5 GeV is presented. The analysis uses various phase space variables, such as missing mass and invariant mass distributions, in the four particle event selection (p, $\pi^+$, $\pi^+$, $\pi^-$) to find cross sections of the different production channels, contributions of the intermediate resonances $\mathrm{\Delta^{++}}$ and $\mathrm{\Sigma(1385)^{+}}$ and corresponding angular distributions. A dominant resonant production is seen, where the reaction $\mathrm{\Lambda + \Delta^{++} + K^{0}}$ has an about ten times higher cross section ($\mathrm{29.45\pm0.08^{+1.67}_{-1.46}\pm2.06\,\mu b}$) than the analogous non-resonant reaction ($\mathrm{2.57\pm0.02^{+0.21}_{-1.98}\pm0.18\,\mu b}$). A similar result is obtained in the corresponding $\Sigma^{0}$ channels with $\mathrm{9.26\pm0.05^{+1.41}_{-0.31}\pm0.65\,\ mu b}$ in the resonant and $\mathrm{1.35\pm0.02^{+0.10}_{-1.35}\pm0.09\,\mu b}$ in the non-resonant reactions.

Domains

Nuclear Experiment [nucl-ex]

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https://in2p3.hal.science/in2p3-00978410

Submitted on : Monday, April 14, 2014-10:41:09 AM

Last modification on : Thursday, April 11, 2024-1:18:11 PM

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in2p3-00978410 , version 1 (14-04-2014)

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HAL Id : in2p3-00978410 , version 1
ARXIV : 1403.6662
DOI : 10.1103/PhysRevC.90.015202

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G. Agakishiev, O. Arnold, D. Belver, A. Belyaev, J. C. Berger-Chen, et al.. Associate K^0 production in p+p collisions at 3.5 GeV: The role of Delta(1232)++. Physical Review C, 2014, 90 (1), pp.015202. ⟨10.1103/PhysRevC.90.015202⟩. ⟨in2p3-00978410⟩

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Associate K^0 production in p+p collisions at 3.5 GeV: The role of Delta(1232)++

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