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B. Baatar

Joint Institute for Nuclear Research

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Featured researches published by B. Baatar.

Physical Review Letters | 2004

Evidence for an Exotic S = -2, Q = -2 Baryon Resonance in Proton-Proton Collisions at the CERN SPS

C. Alt; T. Antičić; B. Baatar; D. Barna; J. Bartke; L. Betev; H. Bialkowska; A. Billmeier; C. Blume; B. Boimska; Michiel Botje; J. Bracinik; R. Bramm; R. Brun; P. Buncic; V. Cerny; P. Christakoglou; O. Chvala; J. G. Cramer; P. Csato; N. Darmenov; A. Dimitrov; P. Dinkelaker; V. Eckardt; G. Farantatos; P. Filip; D. Flierl; Z. Fodor; P. Foka; P. Freund

Results of resonance searches in the Xi- pi-, Xi- pi+, antiXi+ pi- and antiXi+ pi+ invariant mass spectra in proton-proton collisions at sqrt{s}=17.2 GeV are presented. Evidence is shown for the existence of a narrow Xi- pi- baryon resonance with mass of 1.862+/-0.002 GeV/c^2 and width below the detector resolution of about 0.018 GeV/c^2. The significance is estimated to be 4.0 sigma. This state is a candidate for the hypothetical exotic Xi_(3/2)^-- baryon with S = -2, I = 3/2 and a quark content of (d s d s ubar). At the same mass a peak is observed in the Xi- pi+ spectrum which is a candidate for the Xi_(3/2)^0 member of this isospin quartet with a quark content of (d s u s dbar). The corresponding antibaryon spectra also show enhancements at the same invariant mass.

Nuclear Physics | 2003

Recent results on spectra and yields from NA49

M. van Leeuwen; S. Afanasiev; T. Anticic; B. Baatar; D. Barna; J. Bartke; R.A. Barton; M. Behler; L. Betev; H. Bialkowska; A. Billmeier; C. Blume; C. O. Blyth; B. Boimska; Michiel Botje; J. Bracinik; R. Bramm; R. Brun; P. Buncˇić; V. Cerny; O. Chvala; J. G. Cramer; P. Csato; P. Dinkelaker; V. Eckardt; P. Filip; H.G. Fischer; Z. Fodor; P. Foka; P. Freund

The energy dependence of hadron production in central Pb+Pb collisions is presented and discussed. In particular, midrapidity

Physical Review Letters | 2004

Lambda and lambda production in central Pb-Pb collisions at 40, 80, and 158A GeV.

T. Antičić; B. Baatar; D. Barna; J. Bartke; M. Behler; L. Betev; H. Bialkowska; A. Billmeier; C. Blume; B. Boimska; M. Botje; J. Bracinik; R. Bramm; R. Brun; P. Buncic; Cerny; P. Christakoglou; O. Chvala; J. G. Cramer; P. Csato; N. Darmenov; A. Dimitrov; P. Dinkelaker; Eckardt; P. Filip; D. Flierl; Z. Fodor; P. Foka; P. Freund; Friese

m_T

Physical Review C | 2004

Transverse momentum fluctuations in nuclear collisions at 158A GeV

T. Antičić; B. Baatar; D. Barna; J. Bartke; M. Behler; L. Betev; H. Bialkowska; A. Billmeier; C. Blume; B. Boimska; M. Botje; J. Bracinik; R. Bramm; R. Brun; P. Buncic; V. Cerny; P. Christakoglou; O. Chvala; J. G. Cramer; P. Csato; N. Darmenov; A. Dimitrov; P. Dinkelaker; V. Eckardt; P. Filip; D. Flierl; Z. Fodor; P. Foka; P. Freund; V. Friese

-spectra for

Physical Review C | 2016

Production of deuterium, tritium, and He3 in central Pb + Pb collisions at 20A,30A,40A,80A , and 158A GeV at the CERN Super Proton Synchrotron

T. Antičić; K. Grebieszkow; R. Lacey; J. G. Cramer; A. Wojtaszek-Szwarc; F. Sikler; V. Eckardt; H. Beck; A. Laszlo; B. Baatar; A. Panagiotou; Z. Fodor; A. Malakhov; N. Schmitz; C. Höhne; H. Bialkowska; R. Renfordt; M. Kowalski; Mrowczynski; M. Szuba; D. Prindle; F. Pühlhofer; P. Christakoglou; T. Schuster; G. Stefanek; J. Bartke; P. Chung; M. van Leeuwen; K. Kadija; V. Friese

\pi^-

Physical Review C | 2009

System-size dependence of Λ and Ξ production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron

T. Antičić; B. Baatar; D. Barna; J. Bartke; H. Beck; L. Betev; H. Bialkowska; C. Blume; B. Boimska; J. Book; M. Botje; J. Bracinik; P. Buncic; V. Cerny; P. Christakoglou; P. Chung; O. Chvala; J. G. Cramer; P. Csato; P. Dinkelaker; V. Eckardt; Z. Fodor; P. Foka; V. Friese; J. Gal; M. Gaździcki; V. Genchev; K. Grebieszkow; S. Hegyi; C. Höhne

Physical Review C | 2011

Centrality dependence of proton and antiproton spectra in Pb+Pb collisions at 40A GeV and 158A GeV measured at the CERN SPS

T. Antičić; K. Grebieszkow; St Mrówczyński; R. Lacey; W. Peryt; J. G. Cramer; F. Pühlhofer; A. Wojtaszek-Szwarc; M. Utvić; V. Eckardt; H. Beck; A. Laszlo; B. Baatar; A. Panagiotou; Z. Fodor; G. Palla; A. Malakhov; J. Pluta; D. Barna; R. Renfordt; M. Kowalski; N. Schmitz; M. Szuba; D. Prindle; P. Buncic; P. Christakoglou; T. Schuster; M. Rybczynski; J. Bartke; P. Chung

K^-

Nuclear Physics | 2003

Energy dependence of Λ and Λ¯ production at CERN-SPS energies

A. Mischke; S. Afanasiev; T. Antičić; B. Baatar; D. Barna; J. Bartke; R.A. Barton; M. Behler; L. Betev; H. Bialkowska; A. Billmeier; C. Blume; C. O. Blyth; B. Boimska; M. Botje; J. Bracinik; R. Bramm; R. Brun; P. Buncˇić; V. Cerny; O. Chvala; J. G. Cramer; P. Csato; P. Dinkelaker; V. Eckardt; P. Filip; H.G. Fischer; Z. Fodor; P. Foka; P. Freund

Nuclear Physics | 2003

Results on correlations and fluctuations from NA49

C. Blume; S. Afanasiev; T. Anticic; B. Baatar; D. Barna; J. Bartke; R.A. Barton; M. Behler; L. Betev; H. Bialkowska; A. Billmeier; C. O. Blyth; B. Boimska; Michiel Botje; J. Bracinik; R. Bramm; R. Brun; P. Buncic; V. Cerny; O. Chvala; J. G. Cramer; P. Csato; P. Dinkelaker; V. Eckardt; P. Filip; H.G. Fischer; Z. Fodor; P. Foka; P. Freund; V. Friese

K^+

Physical Review C | 2011