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11 results on '"F.G Binon"'

1. A study of the centrally produced eta pi0 and eta pi- systems in pp interactions at 450 GeV/c

Author

D. Barberis, F.G. Binon, F.E. Close, K.M. Danielsen, S.V. Donskov, B.C. Earl, D. Evans, B.R. French, T. Hino, S. Inaba, A. Jacholkowski, T. Jacobsen, G.V. Khaustov, J.B. Kinson, A. Kirk, A.A. Kondashov, V.N. Kolosov, A.A. Lednev, V. Lenti, I. Minashvili, J.P. Peigneux, V. Romanovsky, N. Russakovich, A. Semenov, P.M. Shagin, H. Shimizu, A.V. Singovsky, A. Sobol, M. Stassinaki, J.P. Stroot, K. Takamatsu, T. Tsuru, O. Villalobos Baillie, M.F. Votruba, and Y. Yasu

Subjects
Momentum, Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics - Experiment (hep-ex), Partial wave analysis, Pi, Incident beam, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

A partial wave analysis of the centrally produced eta pi0 and eta pi- channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. Clear a0(980) and a2(1320) signals have been observed in S and D+ waves respectively. The dPT, phi and |t| distributions of these resonances are presented., 13 pages, Latex, 4 Figures

Published
2000

2. A spin analysis of the $4\pi$ channels produced in central pp interactions at 450 GeV/c

Author

D Barberis, F.G Binon, F.E Close, K.M Danielsen, S.V Donskov, B.C Earl, D Evans, B.R French, T Hino, S Inaba, A Jacholkowski, T Jacobsen, G.V Khaustov, J.B Kinson, A Kirk, A.A Kondashov, A.A Lednev, V Lenti, I Minashvili, J.P Peigneux, V Romanovsky, N Russakovich, A Semenov, P.M Shagin, H Shimizu, A.V Singovsky, A Sobol, M Stassinaki, J.P Stroot, K Takamatsu, T Tsuru, O Villalobos Baillie, M.F Votruba, Y Yasu, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Systemic, FOS: Physical sciences, Resonance, 01 natural sciences, High Energy Physics - Experiment, Academic Library, 3. Good health, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Pi, Atomic physics, 010306 general physics, Spin (physics), Strategic Management, Particle Physics - Experiment, Constructivist methodology
Abstract

The reactions pp -> pf (X0) ps, where X0 is observed decaying to pi0pi0pi0pi0, pi+pi-pi0pi0 and pi+pi-pi+pi-, have been studied at 450 GeV/c. There is evidence for an a2(1320)pi decay mode of the eta2(1645) and eta2(1870) in the pi+pi-pi0pi0 and pi+pi-pi+pi- final states. The f2(1950) is consistent with being a single resonance with a dominant f2(1270)pipi decay mode. The f0(1370) is found to decay dominantly to rho-rho while the f0(1500) is found to decay to rho-rho and sigma-sigma., 14 pages, Latex, 4 Figures

Published
2000

3. A search for charmonium states produced in central pp interactions at 450 GeV/c

Author

D Barberis, F.G Binon, F.E Close, K.M Danielsen, S.V Donskov, B.C Earl, D Evans, B.R French, T Hino, S Inaba, A Jacholkowski, T Jacobsen, G.V Khaustov, J.B Kinson, A Kirk, A.A Kondashov, A.A Lednev, V Lenti, I Minashvili, J.P Peigneux, V Romanovsky, N Russakovich, A Semenov, P.M Shagin, H Shimizu, A.V Singovsky, A Sobol, M Stassinaki, J.P Stroot, K Takamatsu, T Tsuru, O Villalobos Baillie, M.F Votruba, Y Yasu, BOMBAR, Claudine, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and WA102

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, 3. Good health, Cross section (physics), High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Limit (mathematics), 010306 general physics, Particle Physics - Experiment
Abstract

A search for centrally produced charmonium states has been presented. There is no significant evidence for any charmonium production. An upper limit of 2 nb is found for the cross section of chic production using the decay chic(1P)-> J/psi gamma., 10 pages, Latex, 4 Figures

Published
2000

4. A coupled channel analysis of the centrally produced K+K- and pi+pi- final states in pp interactions at 450 GeV/c

Author

D. Barberis, F.G. Binon, F.E. Close, K.M. Danielsen, S.V. Donskov, B.C. Earl, D. Evans, B.R. French, T. Hino, S. Inaba, A. Jacholkowski, T. Jacobsen, G.V. Khaustov, J.B. Kinson, A. Kirk, A.A. Kondashov, A.A. Lednev, V. Lenti, I. Minashvili, J.P. Peigneux, V. Romanovsky, N. Russakovich, A. Semenov, P.M. Shagin, H. Shimizu, A.V. Singovsky, A. Sobol, M. Stassinaki, J.P. Stroot, K. Takamatsu, T. Tsuru, O. Villalobos Baillie, M.F. Votruba, Y. Yasu, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
Terminological knowledge base, Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Ontology, 010308 nuclear & particles physics, FOS: Physical sciences, Branching (polymer chemistry), 01 natural sciences, High Energy Physics - Experiment, Momentum, Nuclear physics, High Energy Physics - Experiment (hep-ex), Cartoon film, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Pi, Incident beam, Channel analysis, 010306 general physics, Particle Physics - Experiment, Indexation, Cinéma of animation
Abstract

A coupled channel analysis of the centrally produced K+K- and pi+pi- final states has been performed in pp collisions at an incident beam momentum of 450 GeV/c. The pole positions and branching ratios to pipi and KK of the f0(980), f0(1370), f0(1500) and f0(1710) have been determined. A systematic study of the production properties of all the resonances observed in the pi+pi- and K+K- channels has been performed., 16 pages, Latex, 5 Figures

Published
1999

5. A partial wave analysis of the centrally produced $K^{+}K^{-}$ and $K^{0}_{S}K^{0}_{S}$ systems in pp interactions at 450 GeV/c and new information on the spin of the $f_{J}(1710)$

Author

D. Barberis, W. Beusch, F.G. Binon, A.M. Blick, F.E. Close, K.M. Danielsen, A.V. Dolgopolov, S.V. Donskov, B.C. Earl, D. Evans, B.R. French, T. Hino, S. Inaba, A.V. Inyakin, T. Ishida, A. Jacholkowski, T. Jacobsen, G.T. Jones, G.V. Khaustov, T. Kinashi, J.B. Kinson, A. Kirk, W. Klempt, V. Kolosov, A.A. Kondashov, A.A. Lednev, V. Lenti, S. Maljukov, P. Martinengo, I. Minashvili, T. Nakagawa, K.L. Norman, J.P. Peigneux, S.A. Polovnikov, V.A. Polyakov, V. Romanovsky, H. Rotscheidt, V. Rumyantsev, N. Russakovich, V.D. Samoylenko, A. Semenov, M. Sené, R. Sené, P.M. Shagin, H. Shimizu, A.V. Singovsky, A. Sobol, A. Solovjev, M. Stassinaki, J.P. Stroot, V.P. Sugonyaev, K. Takamatsu, G. Tchlatchidze, T. Tsuru, M. Venables, O. Villalobos Baillie, M.F. Votruba, and Y. Yasu

Subjects
Nuclear physics, Momentum, Physics, High Energy Physics - Experiment (hep-ex), Nuclear and High Energy Physics, Particle physics, Partial wave analysis, Incident beam, FOS: Physical sciences, Particle Physics - Experiment, High Energy Physics - Experiment, Spin-½
Abstract

A partial wave analysis of the centrally produced K+K- and K0K0 channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. An unambiguous physical solution has been found in each channel. The striking feature is the observation of peaks in the S-wave corresponding to the f0(1500) and fJ(1710) with J = 0. The D-wave shows evidence for the f2(1270)/a2(1320), the f2(1525) and the f2(2150) but there is no evidence for a statistically significant contribution in the D-wave in the 1.7 GeV mass region., Comment: 15 pages, Latex, 5 Figures

Published
1999

6. A study of the centrally produced baryon-antibaryon systems in pp interactions at 450 GeV/c

Author

D Barberis, W Beusch, F.G Binon, A.M Blick, F.E Close, K.M Danielsen, A.V Dolgopolov, S.V Donskov, B.C Earl, D Evans, B.R French, T Hino, S Inaba, A.V Inyakin, T Ishida, A Jacholkowski, T Jacobsen, G.T Jones, G.V Khaustov, T Kinashi, J.B Kinson, A Kirk, W Klempt, V Kolosov, A.A Kondashov, A.A Lednev, V Lenti, S Maljukov, P Martinengo, I Minashvili, T Nakagawa, K.L Norman, J.P Peigneux, S.A Polovnikov, V.A Polyakov, V Romanovsky, H Rotscheidt, V Rumyantsev, N Russakovich, V.D Samoylenko, A Semenov, M Sené, R Sené, P.M Shagin, H Shimizu, A.V Singovsky, A Sobol, A Solovjev, M Stassinaki, J.P Stroot, V.P Sugonyaev, K Takamatsu, G Tchlatchidze, T Tsuru, M Venables, O Villalobos Baillie, M.F Votruba, Y Yasu, BOMBAR, Claudine, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and WA102

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Dynamics (mechanics), FOS: Physical sciences, Lambda, 01 natural sciences, High Energy Physics - Experiment, Momentum, Baryon, Pomeron, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Incident beam, Mass spectrum, High Energy Physics::Experiment, 010306 general physics, Particle Physics - Experiment
Abstract

A study of the centrally produced ppbar, ppbarpi, ppbarpipi and lambda lambda channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. No significant new structures are observed in the mass spectra, however, important new information on the production dynamics is obtained. A systematic study of the production properties of these systems has been performed and it is found that these systems are not produced dominantly by double Pomeron exchange., Comment: 13 pages, Latex, 4 Figures

Published
1999

7. A partial wave analysis of the centrally produced $ \pi^{+} \pi^{-}$ system in pp interactions at 450 GeV/c

Author

D. Barberis, W. Beusch, F.G. Binon, A.M. Blick, F.E. Close, K.M. Danielsen, A.V. Dolgopolov, S.V. Donskov, B.C. Earl, D. Evans, B.R. French, T. Hino, S. Inaba, A.V. Inyakin, T. Ishida, A. Jacholkowski, T. Jacobsen, G.T. Jones, G.V. Khaustov, T. Kinashi, J.B. Kinson, A. Kirk, W. Klempt, V. Kolosov, A.A. Kondashov, A.A. Lednev, V. Lenti, S. Maljukov, P. Martinengo, I. Minashvili, T. Nakagawa, K.L. Norman, J.P. Peigneux, S.A. Polovnikov, V.A. Polyakov, V. Romanovsky, H. Rotscheidt, V. Rumyantsev, N. Russakovich, V.D. Samoylenko, A. Semenov, M. Sené, R. Sené, P.M. Shagin, H. Shimizu, A.V. Singovsky, A. Sobol, A. Solovjev, M. Stassinaki, J.P. Stroot, V.P. Sugonyaev, K. Takamatsu, G. Tchlatchidze, T. Tsuru, M. Venables, O. Villalobos Baillie, M.F. Votruba, and Y. Yasu

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Pi system, Partial wave analysis, FOS: Physical sciences, High Energy Physics - Experiment, Nuclear physics, Momentum, High Energy Physics - Experiment (hep-ex), Incident beam, Pi, Particle Physics - Experiment, Communication channel
Abstract

A partial wave analysis of the centrally produced pi+pi- channel has been performed in pp collisions using an incident beam momentum of 450 GeV/c. An unambiguous physical solution has been found. Evidence is found for the f0(980), f0(1300), f0(1500) and fJ(1710) with J = 0 in the the S-wave. The rho(770) is observed dominantly in the P0-wave and the f2(1270) is observed dominantly in the D0-wave. In addition, there is evidence for a broad enhancement in the D-wave below 1 GeV., Comment: 12 pages, Latex, 4 Figures

Published
1999

8. Experimental evidence for a vector-like behaviour of Pomeron exchange

Author

D Barberis, F.G Binon, F.E Close, K.M Danielsen, S.V Donskov, B.C Earl, D Evans, B.R French, T Hino, S Inaba, A Jacholkowski, T Jacobsen, G.V Khaustov, J.B Kinson, A Kirk, A.A Kondashov, A.A Lednev, V Lenti, I Minashvili, J.P Peigneux, V Romanovsky, N Russakovich, A Semenov, P.M Shagin, H Shimizu, A.V Singovsky, A Sobol, M Stassinaki, J.P Stroot, K Takamatsu, T Tsuru, O Villalobos Baillie, M.F Votruba, Y Yasu, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), WA102, and BOMBAR, Claudine

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Current (mathematics), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, High Energy Physics::Phenomenology, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Azimuth, High Energy Physics - Experiment (hep-ex), Pomeron, Distribution (mathematics), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics, Particle Physics - Experiment, Spin-½
Abstract

Evidence is presented that the Pomeron act as a non-conserved vector current. A study has been made of the azimuthal angle phi, which is defined as the angle between the pT vectors of the two outgoing protons, in the reaction pp -> pp(X0) for those resonances (X0) which are compatible with being produced by double Pomeron exchange. These distributions have been compared with a model which describes the Pomeron as a non-conserved vector current and a qualitative agreement is found. In addition, when one of the particles exchanged is known to have spin 0, namely pi-Pomeron exchange, the phi distribution is flat., 13 pages, Latex, 4 Figures

Published
1999

9. A study of the centrally produced $\phi \phi$ system in pp interactions at 450 GeV/c

Author

D Barberis, W Beusch, F.G Binon, A.M Blick, F.E Close, K.M Danielsen, A.V Dolgopolov, S.V Donskov, B.C Earl, D Evans, B.R French, C Goodwin, T Hino, S Inaba, A.V Inyakin, T Ishida, A Jacholkowski, T Jacobsen, G.T Jones, G.V Khaustov, T Kinashi, J.B Kinson, A Kirk, W Klempt, V Kolosov, A.A Kondashov, A.A Lednev, V Lenti, S Maljukov, P Martinengo, I Minashvili, K Myklebost, T Nakagawa, K.L Norman, J.M Olsen, J.P Peigneux, S.A Polovnikov, V.A Polyakov, V Romanovsky, H Rotscheidt, V Rumyantsev, N Russakovich, V.D Samoylenko, A Semenov, M Sené, R Sené, P.M Shagin, H Shimizu, A.V Singovsky, A Sobol, A Solovjev, M Stassinaki, J.P Stroot, V.P Sugonyaev, K Takamatsu, G Tchlatchidze, T Tsuru, M Venables, O Villalobos Baillie, M.F Votruba, and Y Yasu

Subjects
Physics, Nuclear and High Energy Physics, Pomeron, Particle physics, High Energy Physics - Experiment (hep-ex), Glueball, FOS: Physical sciences, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

The reaction pp to pfps(K+K-K+K-) in which the K+K-K+K- system is centrally produced has been studied at 450 GeV/c. Phi phi production has been found to dominate this reaction and is compatible with being produced by double Pomeron exchange. An angular analysis of the phi phi system favours JPC = 2++ and its dPT dependence is similar to that observed for glueball candidates., Comment: 11 pages, Latex, 4 Figures

Published
1998

10. A study of the centrally-produced $\pi^+ \pi^- \pi^+ \pi^-$ channel in pp interactions at 450 GeV/c

Author

D. Barberis, W. Beusch, F.G. Binon, A.M. Blick, F.E. Close, K.M. Danielsen, A.V. Dolgopolov, S.V. Donskov, B.C. Earl, D. Evans, B.R. French, T. Hino, S. Inaba, A.V. Inyakin, T. Ishida, A. Jacholkowski, T. Jacobsen, G.V. Khaustov, T. Kinashi, J.B. Kinson, A. Kirk, W. Klempt, V. Kolosov, A.A. Kondashov, A.A. Lednev, V. Lenti, S. Maljukov, P. Martinengo, I. Minashvili, K. Myklebost, T. Nakagawa, K.L. Norman, J.M. Olsen, J.P. Peigneux, S.A. Polovnikov, V.A. Polyakov, Yu.D. Prokoshkin, V. Romanovsky, H. Rotscheidt, V. Rumyantsev, N. Russakovich, V.D. Samoylenko, A. Semenov, M. Sené, R. Sené, P.M. Shagin, H. Shimizu, A.V. Singovsky, A. Sobol, A. Solovjev, M. Stassinaki, J.P. Stroot, V.P. Sugonyaev, K. Takamatsu, G. Tchlatchidze, T. Tsuru, G. Vassiliadis, M. Venables, O. Villalobos Baillie, M.F. Votruba, Y. Yasu, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), WA102, and Lantz, Simone

Subjects
[PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 0103 physical sciences, Scalar (mathematics), 010306 general physics, 01 natural sciences, Particle Physics - Experiment, Spin-½
Abstract

The reaction pp -> pf (pi+pi-pi+pi-) ps has been studied at 450 GeV/c in an experiment designed to search for gluonic states. A spin analysis has been performed and the dPT filter applied. In addition to the well known f1(1285) there is evidence for two JPC=2-+ states called the eta2(1620) and eta2(1875) and a broad scalar called the f0(2000). The production of these states as a function of the dPT kinematical filter shows the behaviour expected for qqbar states. In contrast, there is evidence for two states at 1.45 GeV and at 1.9 GeV which do not show the behaviour observed for qqbar states. The reaction pp → p f ( π + π − π + π − ) p s has been studied at 450 GeV/c in an experiment designed to search for gl states. A spin analysis has been performed and the dP T filter applied. In addition to the well know f 1 (1285) there is evidence for two J PC = 2 −+ states called the η 2 (1620) and η 2 (1875) and a broad scalar called the f 0 (2000). The production of these states as a function of the dP T kinematical filter shows the behaviour expected for q q states. In contrast, there is evidence for two states at 1.45 GeV and at 1.9 GeV which do not show the behaviour observed for q q states. The reaction pp -> pf (pi+pi-pi+pi-) ps has been studied at 450 GeV/c in an experiment designed to search for gluonic states. A spin analysis has been performed and the dPT filter applied. In addition to the well known f1(1285) there is evidence for two JPC=2-+ states called the eta2(1620) and eta2(1875) and a broad scalar called the f0(2000). The production of these states as a function of the dPT kinematical filter shows the behaviour expected for qqbar states. In contrast, there is evidence for two states at 1.45 GeV and at 1.9 GeV which do not show the behaviour observed for qqbar states.

Published
1997

11. Neutral mesons which decay into 4$\pi^0$

Author

D. Alde, F.G. Binon, C. Bricman, S.V. Donskov, M. Gouanère, A.V. Inyakin, V.A. Kachanov, D.B. Kakauridze, G.V. Khaustov, E.A. Knapp, A.V. Kulik, J.P. Lagnaux, A.A. Lednev, Yu.V. Mikhailov, Th. Mouthuy, V.F. Obraztsov, J.P. Peigneux, Yu.D. Prokoshkin, Yu.V. Rodnov, S.A. Sadovsky, V.D. Samoylenko, P.M. Shagin, A.V. Shtannikov, A.V. Singovsky, J.P. Stroot, V.P. Sugonyaev, BOMBAR, Claudine, Laboratoire d'Annecy de Physique des Particules (LAPP), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Spectrometer, Meson, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Glueball, Scalar boson, 01 natural sciences, Nuclear physics, 0103 physical sciences, Mass spectrum, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Tensor, 010306 general physics, Particle Physics - Experiment
Abstract

Data on the 4π 0 decay mode of mesons have been obtained in a search for glueballs performed at the CERN SPS with the GAMS-4000 multiphoton spectrometer. A new tensor glueball candidate X(1810) appears as a clear peak in the 4π 0 mass spectrum. The 4π 0 decay of G(1590) is also observed. The measured value of BR(G→4 π 0 )/BR(G→ ηη )=0.8±0.3 further supports the glueball assignment of this scalar particle. The rate decay of f(1270) into 4π 0 has been measured: BR(f→4 π 0 ) = (3±1)×10 −3 .

Published
1987

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