0(980) resonance, the $\rm dd\to \upalpha K+K－ reaction was measured with the magnetic ANKE spectrometer. In order to determine the luminosity of this experiment, the elastically and quasi-elastically scattered deuterons were recorded simultaneously with the αK+K－ events. Here we report about the luminosity determination via investigating the (quasi-) elastic deuterons at ANKE.

"> Luminosity determination for the dd→α K<SUP>+</SUP>K<SUP>－</SUP> experiment at ANKE/COSY -
  • [1]

    . Achasov N N et al. Phys. Lett. B, 1979, 88: 3672. Hanhart C et al. Phys. Rept. 2004, 397: 155. arXiv:hep-ph/03113413. Grishina V Y et al. Phys. Lett. B, 2001, 521: 2174. Adam H H. (WASA-at-COSY Collaboration). nucl-ex/04110385. Barsov S et al. Nucl. Instrum. Methods Phys. Res. Sect. A,2001, 462: 3646. Büscher M et al. Nucl. Instrum. Methods Phys. Res. Sect.A, 2002, 481: 3787. Hartmann M et al. (ANKE Collaboration). Int. J. Mod.Phys. A, 2007, 22: 3178. Maier R. Nucl. Instrum. Methods Phys. Res. Sect. A, 1997,390: 19. Dymov S et al. Phys. Lett. B, 2006, 635: 27010. Kleber V et al. Phys. Re. Lett. 2003, 91: 17230411. Azhgirey L S et al. Nucl. Phys. A, 1978, 305: 39712. Dutton L M C et al. Nucl. Phys. B, 1974, 78: 484

Baidu
map