2021-06-23 06:01 |
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2021-06-22 06:00 |
First nK atom lifetime measurement and recent results from the DIRAC experiment
/ Zhabitsky, Mikhail (Dubna, JINR)
/DIRAC Collaboration
We report evidence for πK atoms production, using 24 GeV/c proton beam from CERN PS interacting with a thin Ni target. We have identified (178±49)πK pairs, which were produced in a bound state - πK atom, which was subsequently broken-up (ionized) in the Ni target. [...]
DIRAC-CONF-2014-01.-
2014 - 6 p.
- Published in : EPJ Web Conf. 81 (2014) 01019
Fulltext: PDF;
In : 13th International Workshop on Meson Production, Properties and Interaction, Cracow, Poland, 29 May - 3 Jun 2014, pp.01019
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2017-10-08 06:00 |
First observation of π−K+ and π+K− atoms, their lifetime measurement and πK scattering lengths evaluation
/ Afanasyev, Leonid (Dubna, JINR)
/DIRAC Collaboration
The Low Energy QCD allows to calculate the ππ and π K scattering lengths with high precision. There are accurate relations between these scattering lengths and π + π − , π − K + , π + K − atoms lifetimes. [...]
DIRAC-CONF-2016-02.-
SISSA, 2016 - 6 p.
- Published in : PoS ICHEP2016 (2016) 637
Fulltext: PDF; External link: PoS server
In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016, pp.637
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2017-08-10 06:48 |
The investigation of K+π−,π+K− and π+π− atoms
/ Yazkov, Valeriy (SINP, Moscow)
Theory, using Low Energy QCD, predicts with high precision the pion-pion and pion-kaon scattering lengths. There is accurate relation between K+π− and π+K− atoms lifetime and pion-kaon S-wave scattering lengths with isospin 1/2 and 3/2. [...]
DIRAC-CONF-2016-01.-
2016 - 6 p.
- Published in : EPJ Web Conf. 130 (2016) 01015
In : 14th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland, 2 - 7 Jun 2016, pp.01015
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2017-06-21 07:22 |
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2012-09-03 16:17 |
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2011-09-06 10:20 |
Investigation of π+π− and piK atoms at DIRAC
/ Yazkov, Valeriy (SINP, Moscow)
/DIRAC Collaboration
Measurement of π^+π^− and πK atom lifetimes allows to check prediction of Chiral Perturbation Theory for pion-pion scattering lengths with isospin 0 and 2, and pion-kaon scattering lengths with isospin 1/2 and 3/2. Current status of DIRAC experiment, expected results and proposal for future investigations are presented..
DIRAC-CONF-2009-02.-
2009
- Published in : PoS: CD09 (2009) , pp. 003
Published version from PoS: PDF;
In : 6th International Workshop on Chiral Dynamics, Bern, Switzerland, 6 - 10 Jul 2009, pp.003
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2011-09-06 10:14 |
Evidence for \piK atoms with DIRAC
/ Benelli, A (CERN ; Zurich U.)
/DIRAC-II Collaboration
Electromagnetically bound π^{\pm}K^{\mp}-pairs (πK-atoms) have been observed by the DIRAC-II experiment at the CERN-PS. The πK-atoms were produced by the 24 GeV/c proton beam impinging on a thin Pt-target. [...]
DIRAC-CONF-2009-01.-
2009
- Published in : PoS: CD09 (2009) , pp. 008
Published version from PoS: PDF;
In : 6th International Workshop on Chiral Dynamics, Bern, Switzerland, 6 - 10 Jul 2009, pp.008
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2011-09-06 09:54 |
The C_4F_{10} Cherenkov detector for DIRAC-II
/ Horikawa, S (Zurich U.) ; Allkofer, Y (Zurich U.) ; Amsler, C (Zurich U.) ; Brekhovskikh, V (Serpukhov, IHEP) ; Kuptsov, A (Dubna, JINR) ; Pentia, M (Bucharest, IFIN-HH) ; Ullaland, O (CERN) ; Zhabitsky, M (Dubna, JINR)
/DIRAC Collaboration
A new threshold Cherenkov detector using C_4F_{10} gas radiator was built and put into operation in the DIRAC-II experiment at CERN. Running on the C_4F_{10} at room temperature and atmospheric pressure, the detector discriminates between pions and kaons in the momentum range of 4–8GeV/c. [...]
DIRAC-CONF-2007-04; DIRAC-PUB-2008-04.-
2008
- Published in : Nucl. Instrum. Methods Phys. Res., A 595 (2008) 212-215
In : 6th International Workshop on Ring Imaging Cherenkov Counters, Trieste, Italy, 15 - 20 Oct 2007, pp.212-215
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2011-09-06 09:45 |
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