E68(P-bar PC) M.Kobayashi :
Detection of Discrete γ and π0 from p-bar p System
 
| Submitted | 1979.3.31 | 
| Approved | 1980.10.14 | 
| Beam line | πμ | 
| Shift requested | 150 | 
| Shift executed | 165.2 | 
| Executed cycles | 82[6,7,8],
  83[10.11.12.13], 84[1,2,3] | 
 
 
Papers and activities
 
| [Legend] | |
| ● | Physics
  papers published in refereed journal | 
| ○ | Technical
  papers | 
| ★ | PhD theses | 
| ◇ | Conference
  and Symposium | 
| * | Internal Report and others | 
 
| ● M. Chiba et al. | |
|    | Search for Narrow States by Detection
  of Monochromatic Gamma Rays in p-bar p Annihilation at Rest | 
|    | Phys.Lett.B177 (1986) 217. | 
| ● M. Chiba et al. | |
|    | Search for Narrow States by Detection
  of Monochromatic Gamma Rays in p-bar p Annihilation at Rest | 
|    | Phys.Rev. D36 (1987) 3321. | 
| ● M. Chiba et al. | |
|    | Search for Narrow Peaks in Inclusive π0
  Spectra from p-bar p Annihilation at Rest | 
|    | Phys.Lett.B202 (1988) 447. | 
| ● M. Chiba et al. | |
|    | Antiproton-Proton Annihilation at Rest
  into π0 M and γ M with M= ϕ, η', ω, ρ0,
  η, and π0 | 
|    | Phys.Rev. D38 (1988) 2021. | 
| ● M. Chiba et al. | |
|    | η and η' Production in p-bar p
  Annihilation at Rest | 
|    | Phys. Rev. D39 (1989) 3227. | 
| ● M. Chiba et al. | |
|    | Measurement of γ rays from
  Antiproton-Deuterium Annihilation at Rest | 
|    | Phys.Rev.D44 (1991) 1933. | 
| ○ M. Kobayashi et al. | |
|    | Performance of a Scintillator Glass
  Shower Detector for 20-120 MeV Electrons | 
|    | Nucl. Instr. Meth. 184 (1981)
  399.                                                          | 
| ○ M. Kobayashi et al. | |
|    | A Bismuth Germanate Scintillator as a
  Total Absorption Shower Detector | 
|    | Nucl. Instr.Meth. 184 (1981) 629. | 
| ○ M. Kobayashi et al. | |
|    | Improvement of the Longitudinal
  Uniformity in the Response of Long BGO Detectors | 
|    | Nucl. Instr. Meth. 222(1984) 458. | 
| ○ M. Kobayashi et al. | |
|    | An NaI(Tl)-241 Am High
  Reliability, Constant Amplitude Light Pulser | 
|    | Nucl. Instr. Meth. 189 (1981) 625. | 
| ○ M. Chiba et al. | |
|    | A Shower Detector of an Improved
  Scintillator Glass and Its Longitudinal Response | 
|    | Nucl. Instr. Meth. 190 (1981) 15. | 
| ○ M. Kobayashi et al. | |
|    | Performance of a Scintillator Glass
  Shower Detector  for Low Energy
  Electrons | 
|    | Nucl. Instr. Meth. 196(1982) 239. | 
| ○ M. Kobayashi et al. | |
|    | A NaI(Tl)-241 Am Light
  Pulser of Increased Reliability by Eliminating Epoxy Sealing | 
|    | Nucl. Instr. Meth. 224 (1984) 318. | 
| ○ M. Chiba et al. | |
|    | Performance of a Scintillator Glass
  Calorimeter for 10.0-84.3 MeV Photons | 
|    | Nucl. Instr. Meth. A234 (1985) 267. | 
| ○ M. Kobayashi et al. | |
|    | Liquid Hydrogen and Deuterium Target
  for Antiproton Annihilation at Rest | 
|    | Japan. J.Appl.Phys.24 (1985) 593. | 
| ○ M. Kobayashi et al. | |
|    | Modularized NaI(Tl) Detectors in a
  Half Barrel Configuration | 
|    | Nucl. Instr. Meth. A245 (1986) 59. | 
| ○ M. Kobayashi et al. | |
|    | Self-Supporting Cylindrical Μultiwire
  Proportional Chambers with Two Dimensional Read-out | 
|    | Nucl. Instr. Meth. A245 (1986) 51. | 
| ○ M. Chiba et al. | |
|    | A Large Silicon Detector to Measure
  the Antiproton Range in a Liquid Hydrogen Target | 
|    | Nucl. Instr. Meth. A276 (1989) 122. | 
| ○ M. Takasaki et al. | |
|    | The Low Energy Antiproton Beam K4 at
  the KEK 12 GeV Proton Synchrotron | 
|    | Nucl. Instr. Meth. A242 (1986 201. | 
| ★ T. Ohmori | |
|    | A Search for a Baryonium in p-bar p
  Annihilation at Rest | 
|    | KEK Report 89-1, April, 1989, H. | 
| ◇ M. Kobayashi et al. | |
|    | An NaI(Tl)-241 Am Light
  Pulser for GA in Monitor of Photomultiplier Tubes | 
|    | Proc. 1981 INS Int'l Symp. on Nuclear Radiation
  Detectors,Mar.23-26,1981,Tokyo. | 
| ◇ K. Doi et al. | |
|    | Test of BGO-Bars for Electromagnetic
  Shower Calorimeters | 
|    | Proc. Int'l Workshop on BGŌ,
  Princeton, Nov.1982, p.568 | 
| ◇ S. Kurokawa et al. | |
|    | Characteristics of a Low-Energy
  Antiproton Beam K4 | 
|    | 5th Symp. on Accelerator Science and
  Technology, KEK, September 1984 | 
| ◇ F. Takeuchi | |
|    | A p-bar p Experiment and K4 Beam Line
  at KEK | 
|    | Proc.KEK Int'l Workshop  on Nuclear Physics in GeV Region. KEK,
  Nov. 13-15, 1984 | 
| ◇ M. Kobayashi et al. | |
|    | Search for Baryonium by Exclusive
  Measurement of γ Rays and π0 in p-bar p Annihilation at Rest | 
|    | Proc. Meeting on Hadron Spectroscopy,
  KEK, Feb. 5-6,1985, KEK-Report 85-14, 1986 | 
| ◇ M. Kobayashi and H. Yoshida | |
|    | Investigation of Jpc=1–+
  Hybrid States in p-bar p Annihilation at Rest | 
|    | Proc. Meeting on Hadron Spectroscopy,
  KEK, Feb. 5-6,1985, KEK-Report 85-14, 1986 | 
| ◇ M. Kobayashi (for E68) | |
|    | Search for Monochromatic Gamma Rays in
  p-bar p Annihilation at Rest | 
|    | Proc. Meeting on Few-Body Problems in
  High and Medium Energy Physics, KEK, Oct.3-5, 1985 | 
| ◇ F. Takeuchi | |
|    | A Baryonium Search at KEK | 
|    | INS Int'l Symp. on Hypernuclear
  Physics, August 20-23, 1986, Tokyo | 
| ◇ M. Chiba et al. | |
|    | Search for Monochromatic Photon
  Emission from p-bar p Annihilation at Rest | 
|    | The 11th Int'l Conf. on Few Body
  Systems in Particle and Nucl. Phys. August 24-30, 1986, Tokyo and Sendai,
  Japan | 
| ◇ M. Kobayashi | |
|    | Search for Baryonia  and Meson Spectroscopy in p-bar p at Rest | 
|    | Presented at the Meeting on Hadron
  Spectroscopy held at KEK on Jan.8-9, 1987, KEK Report 86-13 | 
| ◇ M. Chiba et al. | |
|    | Further Results on Narrow States
  Related to p-bar p Below Threshold | 
|    | - Search for Narrow States with
  Various Decay Topologies - Proc.2nd Int'l Conf. on Hadron Spectroscopy,
  Tsukuba, 1987 | 
| ◇ M. Chiba et al. | |
|    | η,η' Production in p-bar p
  Annihilation at Rest | 
|    | Proc.2nd Int'l Conf. on Hadron
  Spectroscopy, Tsukuba, 1987 | 
| ◇ M. Chiba et al. | |
|    | p-bar p Annihilation at Rest into
  Neutral Mesons | 
|    | 4th LEAR WS held at Villars-sur-011
  on, Switzerland, Sept.6-13, 1987 | 
| ◇ M. Kobayashi et al. | |
|    | Search for Narrow States in the
  Inclusive γ-Ray Spectra from Antiproton-Deuterium Annihilation at Rest | 
|    | LEAP 90, Stockholm, Sweden, 2-6 July,
  1990. | 
| * S. Kurokawa et al. | |
|    | Design of a Low-Energy
  Electrostatically-Separated Antiproton Beam K4 at the 12 GeV Proton
  Synchrotron | 
|    | KEK-82-4, 1982 | 
| * M. Kobayashi et al. | |
|    | Construction of Self-Supporting
  Cylindrical Μltiwire Proportional Chambers | 
|    | KEK Report 84-10, 1984 | 
| * M. Kobayashi et al. | |
|    | Energy Caliblation of NaI(Tl) and BGO
  Detectors at 6.13 MeV by using a Pu-C Source | 
|    | KEK Internal 84-5 | 
| * M. Kobayashi and S. Kurosawa | |
|    | Search for Baryonia by Exclusive
  Measurement of γ Rays in p-bar Annihilation at Rest | 
|   | KEK Internal 86-14,1986 | 
| * M. Kobayashi et al. | |
|   | Measurement of Monochromatic π0 and
  η Mesons in Antiproton-deuterium Annihilation at Rest  | 
|    | KEK Internal 97-247, January 1998 |