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  • The results of a search for hydrogen-like atoms consisting of Pi-/+K± mesons are presented. Evidence for PiK atom production by 24 GeV/c protons from CERN PS interacting with a nickel target has been seen in terms of characteristic πK pairs from their breakup in the same target (178±49) and from Coulomb final state interaction (653±42). Using these results the analysis yields a first value for the πK atom lifetime of τ=(2.5+3.0-1.8) fs and a first model-independent measurement of the S-wave isospin-odd πK scattering length ||a-0||=13||a1/2-a3/2||=(0.11+0.09-0.04)M-1π (aI for isospin I).
  • The results of a search for hydrogen-like atoms consisting of Pi-/+K± mesons are presented. Evidence for PiK atom production by 24 GeV/c protons from CERN PS interacting with a nickel target has been seen in terms of characteristic πK pairs from their breakup in the same target (178±49) and from Coulomb final state interaction (653±42). Using these results the analysis yields a first value for the πK atom lifetime of τ=(2.5+3.0-1.8) fs and a first model-independent measurement of the S-wave isospin-odd πK scattering length ||a-0||=13||a1/2-a3/2||=(0.11+0.09-0.04)M-1π (aI for isospin I). (en)
Title
  • First PiK atom lifetime and PiK scattering length measurements
  • First PiK atom lifetime and PiK scattering length measurements (en)
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  • First PiK atom lifetime and PiK scattering length measurements
  • First PiK atom lifetime and PiK scattering length measurements (en)
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  • RIV/68407700:21340/14:00216678!RIV15-MSM-21340___
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  • RIV/68407700:21340/14:00216678
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  • lifetime; pion; kaon; measurement (en)
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  • Průša, Petr
  • Smolík, Jan
  • Urban, Tomáš
  • Vrba, Tomáš
  • Afanasyev, L.
  • Čechák, Tomáš
  • Martinčík, Jiří
  • Trojek, Tomáš
  • Allkofer, Y.
  • Amsler, C.
  • Doškářová, Pavla
  • Adeva, A.
  • Anania, A.
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  • 21340
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