strangenessproductionin hadron...
TRANSCRIPT
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StrangenessStrangeness productionproduction in in hadronhadron reactionsreactions
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Big Karl
decommissioned
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COSY11
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Track reconstruction
with
mm/mm
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KaonKaon Pair Pair ProductionProduction
pppp K+K- COSY-11 (square, PLB 515 (2001) 276; 635 (2006) 23), ANKE (circle, Phys. Rev. C 77(2008) 015204), Saturne (open, PLB 468(1999) 7)
ppd K+K0 ANKE (Eur. Phys. J. A29 (2006) 245)
pnd K+K- ANKE (Phys. Rev. C79 (2009) 018201))
pd3He K+K- MOMO (Big Karl, Phys. Rev. C75(2009)015204)
dd
K+K- ANKE ( Eur. Phys. J. A442(09) 1)
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KK
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40.5
(0 1.5 ) fm
0.5 (3 3) ) fmK p
K K
a i
a i
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KK
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Eur. Phys. J A46 (2010) 27
l=1S11
, P11
, P13
FSI
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0( , ) 3 ( , )pp K p pp K p
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p: how to study FSI?
Kaons being forward emitted in thecm system
Kaons being backward emitted in thecm system
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HIRES
Phys. Lett. B 687 (2010) 31
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Enhancement
R=enhancement
factor
HIRES results
triplet
singlet
Estimates
from
Sibirtsev
et al.Eur. Phys. J. A27 (2005) 269
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ppn cross section (I)
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ppn cross section
(II)
HIRES
Phys. Lett. B 692(2010) 10
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S=-1 Dibaryons
Aerts
and Dover
NPB 253 (1985) 116
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Search for a S=-1 Dibaryon
HIRES
Phys. Rev. D 84 (2011) 0320021.0 MeV0.5 MeV0.1 MeV
99% confidence
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