A. Kulikov

Publications (54) View all

• Article: High-current effects in the PEP-II storage ring

  U. Wienands, R. Akre, Kirk J. Bertsche, S. Curry, S. DeBarger, F.J. Decker, S. Ecklund, A. Fisher, J. Fox, S. Heifets R. Iverson, [......], N. Kurita, A. Novokhatski, N. Reeck, J. Seeman, M. Sullivan, D. Teytelman, J. Turner, D. van Winkle, G. Yocky, A. Young
  ICFA Beam Dynamics Newsletter. 04/2009; 48:93.
• Article: Parameters for the PEP-II B-factory at SLAC in 2008

  J. Seeman, R. Akre, P. Bellomo, Kirk J. Bertsche, Y. Chai, R. Chestnut, J. Clendenin, S. DeBarger, F.J. Decker, J. Dorfan S. Ecklund, [......], Y. Yan, G. Yocky, M. Zurawel, W. Barry, J. Corlett, T. Elioff, M. Furman, M. Zisman, M. Biagini, P. Raimondi
  ICFA Beam Dynamics Newsletter. 04/2009; 48:72.
• Source

  Available from: Giuseppe Tagliente

  Article: Polarizing a stored proton beam by spin flip?

  D. Oellers, L. Barion, S. Barsov, U. Bechstedt, P. Benati, S. Bertelli, D. Chiladze, G. Ciullo, M. Contalbrigo, P.F. Dalpiaz, [......], M. Tabidze, G. Tagliente, P. Thörngren Engblom, S. Trusov, A. Vasilyev, Chr. Weidemann, D. Welsch, P. Wieder, P. Wüstner, P. Zupranski
  [show abstract] [hide abstract]
  ABSTRACT: We discuss polarizing a proton beam in a storage ring, either by selective removal or by spin flip of the stored ions. Prompted by recent, conflicting calculations, we have carried out a measurement of the spin-flip cross section in low-energy electron–proton scattering. The experiment uses the cooling electron beam at COSY as an electron target. The measured cross sections are too small for making spin flip a viable tool in polarizing a stored beam. This invalidates a recent proposal to use co-moving polarized positrons to polarize a stored antiproton beam.
  Physics Letters B. 02/2009;
• Article: Measurement of the e;{+}e;{-}-->bb[over ] Cross Section between sqrt[s]=10.54 and 11.20 GeV.

  B Aubert, M Bona, Y Karyotakis, J P Lees, V Poireau, E Prencipe, X Prudent, V Tisserand, J Garra Tico, E Grauges, [......], G B Mohanty, H R Band, X Chen, S Dasu, K T Flood, Y Pan, M Pierini, R Prepost, C O Vuosalo, S L Wu
  [show abstract] [hide abstract]
  ABSTRACT: We report e;{+}e;{-}-->bb[over ] cross section measurements by the BABAR experiment performed during an energy scan in the range of 10.54 to 11.20 GeV at the SLAC PEP-II e;{+}e;{-} collider. A total relative error of about 5% is reached in more than 300 center-of-mass energy steps, separated by about 5 MeV. These measurements can be used to derive precise information on the parameters of the Upsilon(10860) and Upsilon(11020) resonances. In particular we show that their widths may be smaller than previously measured.
  Physical Review Letters 02/2009; 102(1):012001. · 7.37 Impact Factor
• Article: Observation of the bottomonium ground state in the decay Upsilon(3S)-->gammaetab.

  B Aubert, M Bona, Y Karyotakis, J P Lees, V Poireau, E Prencipe, X Prudent, V Tisserand, J Garra Tico, E Grauges, [......], G B Mohanty, H R Band, X Chen, S Dasu, K T Flood, Y Pan, M Pierini, R Prepost, C O Vuosalo, S L Wu
  [show abstract] [hide abstract]
  ABSTRACT: We report the results of a search for the bottomonium ground state etab(1S) in the photon energy spectrum with a sample of (109+/-1) million of Upsilon(3S) recorded at the Upsilon(3S) energy with the BABAR detector at the PEP-II B factory at SLAC. We observe a peak in the photon energy spectrum at Egamma=921.2(-2.8)+2.1(stat)+/-2.4(syst) MeV with a significance of 10 standard deviations. We interpret the observed peak as being due to monochromatic photons from the radiative transition Upsilon(3S)-->gammaetab(1S). This photon energy corresponds to an etab(1S) mass of 9388.9(-2.3)+3.1(stat)+/-2.7(syst) MeV/c2. The hyperfine Upsilon(1S)-etab(1S) mass splitting is 71.4(-3.1)+2.3(stat)+/-2.7(syst) MeV/c2. The branching fraction for this radiative Upsilon(3S) decay is estimated to be [4.8+/-0.5(stat)+/-1.2(syst)]x10(-4).
  Physical Review Letters 08/2008; 101(7):071801. · 7.37 Impact Factor