J-PARC Experiment E36 at the Nuclear and Particle Physics Facillity

Precise Measurement of Γ (K⁺→ e⁺ν)/Γ(K⁺→ μ⁺ν)
using Stopped Positive Kaons

Publication

Proposal and progress reports for the J-PARC PAC meeting

The E36 was granted official Stage-2 status after the 17th PAC's recommendation.

• Proposal
  submitted proposal(Proposals for the 10th PAC meeting, Fri 16 - Sun 18 July, 2010)
  original (should be same, pdf)
  
• Addendum 1 for the proposal (Reports for the 11th PAC meeting, Fri 14 - Sun 16 January, 2011)
• Addendum 2 for the proposal (Reports for the 13th PAC meeting, Fri13 - Sun 15 January, 2012)
• Progress reports for the proposal (Reports for the 15th PAC meeting, 13July - 15 July, 2012)
• Progress reports for the proposal (Reports for the 16th PAC meeting, Wed 09 - Fri 11 January, 2013)
  

Conference papers and slides

• M.Kohl et al.; Report of the Heavy Quarks Working Group (November 2011)
• M.Hasinoff; Proc. 11th Conference on the Intersection of Particle and Nuclear Physics (CIPANP 2012) (May-June, 2012)
• S.Strauch et al., Proceedings of KAON2013 (May 2013)
  http://pos.sissa.it/archive/conferences/181/014/KAON13_014.pdf
• M.Kohl et al., The proceedings for the "Workshop to Explore Physics Opportunities with Intense, Polarized Electron Beams up to 300 MeV" (PEB2013), to be appeared in AIP Conference Proceedings.

Related stopped K⁺ decay experiments (KEK-PS E246/E470 experiment)

• Spectroscopic studies of K⁺ decays
  • Measurement of Direct Photon Emission in K_π2γdecay
    Phys. Lett. B554(2003) 7
    Eur.Phys.J. C46 (2006) 61-67
    link to the INSPIRE page
  • Test of exotic scalar and tensor couplings in K⁺ → π⁰e⁺ν decay
    Phys.Lett. B495 (2000) 33-41 ;
    Phys.Atom.Nucl. 65 (2002) 2232-2237, Yad.Fiz. 65 (2002) 2294-2299
    link to the INSPIRE page
  • Measurement of Γ(Kμ3)/Γ(Ke3) ratio using stopped positive kaons
    Phys.Lett. B513 (2001) 311-318
    link to the INSPIRE page
  • Measurement of K⁺ → π⁰π⁰e⁺ν decay
    Phys.Rev. D70 (2004) 037101
    link to the INSPIRE page
  • Measurement of K⁺ → π⁰μ⁺νγ decay
    Phys.Lett. B633 (2006) 190-194
    link to the INspire page

• T-violation search
  • Search for T-violating transverse muon polarization in the K+ ---> pi0 mu+ nu decay.
    Phys.Rev. D73 (2006) 072005;
    Phys.Rev.Lett. 93 (2004) 131601;Nucl.Phys. A721 (2003) 445-448; Nucl.Phys. A663 (2000) 919-922
    link to the INspire page
  • First measurement of the T violating muon polarization in the decay K+ ---> mu+ nu gamma.
    Phys.Lett. B562 (2003) 166-172
    link to the INspire page
    
• Detectors
  • Effects of radiation damage caused by proton irradiation on Multi-Pixel Photon Counters (MPPCs)
    NIMA
    link to the INspire page, 2
  • Apparatus for a search for T violating muon polarization in stopped kaon decays.
    Nucl.Instrum.Meth. A506 (2003) 60-91
    link to the INspire page
  • CsI(Tl) photon detector with PIN photodiode readout for a K(mu3) T-violation experiment.
    Nucl.Instrum.Meth. A440 (2000) 151-171
    link to the INspire page
  • A visualization environment for an online monitoring and control system for an experiment to search for T-violation in K+ decay.
    Instrum.Exp.Tech. 42 (1999) 520-526
    link to the INspire page
  • A Cherenkov counter for charged kaon and pion identification in the momentum range of 600-MeV/c to 700-MeV/c.
    Instrum.Exp.Tech. 41 (1998) 803-809
    link to the INspire page
  • The superconducting toroidal spectrometer for hypernuclear studies at KEK PS.
    Nucl.Instrum.Meth. A416 (1998) 253-262
    link to the INspire page
  • High precision magnetic field mapping with a three-dimensional Hall probe for a T violation experiment in K(mu3) decay.
    Nucl.Instrum.Meth. A401 (1997) 243-262
    link to the INspire page
  • CsI(Tl) pi0 detector for experiments on the search for T violation in kaon decay.
    Instrum.Exp.Tech. 39 (1996) 164-172
    link to the INspire page
  • CsI(Tl) calorimeter with photodiode readout to search for T violation in K(mu3) decay.
    Nucl.Instrum.Meth. A379 (1996) 499-501
    link to the INspire page
    
    

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