DIRAC: A high resolution spectrometer for pionium detection

Adeva, B.; Afanasyev, L.; Benayoun, M.; Benelli, A.; Berka, Z.; Brekhovskikh, V.; Caragheorgheopol, G.; Čechák, T.; Chiba, M.; Cima, E.; Constantinescu, S.; Detraz, C.; Dreossi, Diego; Drijard, D.; Dudarev, A.; Evangelou, I.; Ferro‐Luzzi, M.; Gallas, M. V.; Gerndt, J.; Giacomich, R.; Gianotti, P.; Giardoni, M.; Goldin, D.; Gómez, F.; Gorin, A.; Gortchakov, O.; Guaraldo, C.; Hansroul, M.; Iliescu, M.; Zhabitsky, M.; Karpukhin, V.V.; Kluson, J.; Kobayashi, M.; Kokkas, P.; Komarov, V.I.; Kruglov, V.V.; Kruglova, L.; Kulikov, A.; Kuptsov, A.V.; Kurochkin, V. I.; Kuroda, K.; Lamberto, A.; Lanaro, A.; Lapshin, V.G.; Lednický, R.; Leruste, Ph.; Levisandri, P.; Agúera, A. López; Lucherini, V.; Mäki, T.; Manthos, N.; Manuilov, I.; Montanet, L.; Narjoux, J. L.; Nemenov, L.L.; Nikitin, M.; Pardo, T. Nunez; Okada, K.; Olchevskii, V.; Orecchini, D.; Pazos, A.; Pentia, M.; Penzo, A.; Perreau, J.M.; Petrascu, C.; Pló, M.; Ponta, T.; Pop, D.; Rappazzo, G. F.; Riazantsev, A.; Rodriguez, J. Molina; Fernandez, A. Rodriguez; Romero, A.; Rykalin, V.I.; Santamarina, C.; Saborido, J.; Schacher, J.; Schuetz, C.; Sidorov, A.; Smolík, J.; Steinacher, M.; Takéutchi, F.; Tarasov, A.V.; Tauscher, L.; Tobar, M.J.; Triantis, F. A.; Trusov, S.; Utkin, Victor A.; Doce, O. Vázquez; Vázquez, P.; Vlachos, S.; Yazkov, V.; Yoshimura, Y.; Zrelov, P.

doi:10.1016/j.nima.2003.08.114

Cited by 39 publications

(14 citation statements)

References 23 publications

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“…DIRAC setup was created to detect π + π − with small relative momenta [17]. In 2004-2006 it has been modified in order to detect both π + π − and πK pairs [18].…”

Section: Dirac Setupmentioning

confidence: 99%

Observation and investigation ofπKatoms

Yazkov

2017

EPJ Web Conf.

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Abstract. There is accurate relation between lifetime of atoms, consisting of pion and kaon, and a difference of S-wave pion kaon scattering length with isospin 1/2 and 3/2: |a 1/2 − a 3/2 |. This difference is predicted by low energy QCD. Experiment DIRAC at CERN PS detects 349 ± 62 pairs from K + π − and π + K − atoms and make observation of exotic atoms consist of pion and kaons and provides way for measurement of pion-kaon scattering length difference and check of theoretical predictions.

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“…DIRAC setup was created to detect π + π − with small relative momenta [17]. In 2004-2006 it has been modified in order to detect both π + π − and πK pairs [18].…”

Section: Dirac Setupmentioning

confidence: 99%

Observation and investigation ofπKatoms

Yazkov

2017

EPJ Web Conf.

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“…DIRAC setup was created to detect π + π − with small relative momenta [14]. In 2004-2006 it has been modified in order to detect both π + π − and πK pairs.…”

Section: Dirac Setupmentioning

confidence: 99%

The investigation ofK⁺π⁻,π⁺K⁻andπ⁺π⁻atoms

Yazkov

2016

EPJ Web Conf.

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Abstract. 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. Experiment DIRAC at CERN PS detects 345 ± 61 pairs from K + π − and π + K − atoms breakup. It allows to achieve the first observation of exotic atoms consisted of pion and kaon. Measured values of πK atom lifetime and corresponding pion-kaon scattering length difference are presented. It is shown, that experimental accuracy for pion-kaon scattering length difference could be significantly improved with an experiment at SPS energy.

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“…High volume transparency (about 2 m) of extruded scintillator (cross-section up to 10 × 250 mm 2 ) allowed to use them in experiments at IHEP: in the hodoscope hadrons detector of general algebraic modeling system (GAMS) [2], in the Large Aperture Muon Hodoscopes of TNF [3] and at CERN: in the Large Aperture Hodoscopes of NA-12 [4], in the Forward Muon Hodoscope and Shower Maximum Detector of DELPHI [5,6], in the Muon Hodoscope of DIRAC [7].…”

Section: 1large Blocks Of Scintillators Produced By Polymerizingmentioning

confidence: 99%

Development of the Polystyrene Scintillator Technology and Particle Detectors on Their Base

Rykalin¹,

Brekhovskikh²,

Chernichenko³

et al. 2015

JPSA

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Abstract:The new designed at Institute for High Energy Physics (IHEP) technologies of polystyrene scintillators manufacturing, molding of polystyrene granules under pressure, melting of granules in forms with mirrors walls, production of scintillating granules and detectors on their basis are considered. The main characteristics of the polystyrene scintillators produced by a method of large-block polymerization and a method of extruding of scintillation strips from polymerized blocks are provided in this article also.

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DIRAC: A high resolution spectrometer for pionium detection

Cited by 39 publications

References 23 publications

Observation and investigation ofπKatoms

Observation and investigation ofπKatoms

The investigation ofK⁺π⁻,π⁺K⁻andπ⁺π⁻atoms

Development of the Polystyrene Scintillator Technology and Particle Detectors on Their Base

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DIRAC: A high resolution spectrometer for pionium detection

Cited by 39 publications

References 23 publications

Observation and investigation ofπKatoms

Observation and investigation ofπKatoms

The investigation ofK+π−,π+K−andπ+π−atoms

Development of the Polystyrene Scintillator Technology and Particle Detectors on Their Base

Contact Info

Product

Resources

About

The investigation ofK⁺π⁻,π⁺K⁻andπ⁺π⁻atoms