Search Results - "Bryman, D. A"

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    Improved Measurement of the π→eν Branching Ratio by Aguilar-Arevalo, A, Aoki, M, Blecher, M, Britton, D I, Bryman, D A, Vom Bruch, D, Chen, S, Comfort, J, Ding, M, Doria, L, Cuen-Rochin, S, Gumplinger, P, Hussein, A, Igarashi, Y, Ito, S, Kettell, S H, Kurchaninov, L, Littenberg, L S, Malbrunot, C, Mischke, R E, Numao, T, Protopopescu, D, Sher, A, Sullivan, T, Vavilov, D, Yamada, K

    Published in Physical review letters (14-08-2015)
    “…A new measurement of the branching ratio R_{e/μ}=Γ(π^{+}→e^{+}ν+π^{+}→e^{+}νγ)/Γ(π^{+}→μ^{+}ν+π^{+}→μ^{+}νγ) resulted in…”
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    Journal Article
  2. 2

    Search for massive neutrinos in π+→e+νe decay by Ito, S., Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bryman, D. A., Bruch, D. vom, Chen, S., Comfort, J., Cuen-Rochin, S., Doria, L., Gumplinger, P., Hussein, A., Igarashi, Y., Kettell, S., Kurchaninov, L., Littenberg, L., Malbrunot, C., Mischke, R. E., Numao, T., Protopopescu, D., Sher, A., Sullivan, T., Vavilov, D.

    Published in Hyperfine interactions (2017)
    “…The PIENU experiment aims to measure the branching ratio of the charged pion decay with precision of < 0.1 %. This measurement is much sensitive to search for…”
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    Journal Article
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    Initial results from the PIENU experiment by Sullivan, T., Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bryman, D. A., Bruch, D. vom, Chen, S., Comfort, J., Cuen-Rochin, S., Doria, L., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S. H., Kurchaninov, L., Littenberg, L. S., Malbrunot, C., Mischke, R. E., Numao, T., Protopopescu, D., Sher, A., Vavilov, D.

    Published in Hyperfine interactions (2017)
    “…The pion branching ratio, R π = Γ ( π + → e + ν e + π + → e + ν e γ ) Γ ( π + → μ + ν μ + π + → μ + ν μ γ ) , provides a sensitive test of lepton universality…”
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    Journal Article
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    Study of a large NaI(Tl) crystal by Aguilar-Arevalo, A., Aoki, M., Blecher, M., Bryman, D.A., Doria, L., Gumplinger, P., Hussein, A., Ito, N., Kettell, S., Kurchaninov, L., Littenberg, L., Malbrunot, C., Marshall, G.M., Numao, T., Poutissou, R., Sher, A., Yamada, K.

    “…Using a narrow band positron beam, the response of a large high-resolution NaI(Tl) crystal to an incident positron beam was measured. It was found that nuclear…”
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    Journal Article
  6. 6

    Constraints on Sterile Neutrinos in the MeV to GeV Mass Range by Bryman, D. A, Shrock, R

    Published 24-09-2019
    “…Phys. Rev. D 100, 073011 (2019) A detailed discussion is given of the analysis of recent data to obtain improved upper bounds on the couplings $|U_{e4}|^2$ and…”
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    Journal Article
  7. 7

    Improved Constraints on Sterile Neutrinos in the MeV to GeV Mass Range by Bryman, D. A, Shrock, R

    Published 15-04-2019
    “…Phys. Rev. D 100, 053006 (2019) Improved upper bounds are presented on the coupling $|U_{e4}|^2$ of an electron to a sterile neutrino $\nu_4$ from analyses of…”
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    Journal Article
  8. 8

    Search for heavy neutrinos in π → μν decay by Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D.I., vom Bruch, D., Bryman, D.A., Chen, S., Comfort, J., Doria, L., Cuen-Rochin, S., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S.H., Kurchaninov, L., Littenberg, L.S., Malbrunot, C., Mischke, R.E., Numao, T., Protopopescu, D., Sher, A., Sullivan, T., Vavilov, D.

    Published in Physics letters. B (10-11-2019)
    “…In the present work of the PIENU experiment, heavy neutrinos were sought in pion decays π+→μ+ν at rest by examining the observed muon energy spectrum for extra…”
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    Journal Article
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    500 MHz transient digitizers based on GaAs CCDs by Bryman, D.A, Constable, M, Cresswell, J.V, Daviel, A, LeNoble, M, Mildenberger, J, Poutissou, R

    “…A system of 500 MHz transient digitizers based on gallium arsenide resistive gate charged coupled devices has been developed for an experiment to study rare K…”
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    Journal Article
  14. 14

    Central tracking chamber with inflated cathode-strip foils by Blackmore, E.W., Bryman, D.A., Kuno, Y., Lim, C., Numao, T., Padley, P., Redlinger, G., Soluk, R., McPherson, R.A.

    “…A new cylindrical low-mass central drift chamber has been constructed for the K + → π +ν ν experiment at BNL (E787). The chamber consists of twelve layers of…”
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    Journal Article
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    High purity pion beam at TRIUMF by Aguilar-Arevalo, A., Blecher, M., Bryman, D.A., Comfort, J., Doornbos, J., Doria, L., Hussein, A., Ito, N., Kettell, S., Kurchaninov, L., Malbrunot, C., Marshall, G.M., Numao, T., Poutissou, R., Sher, A., Walker, B., Yamada, K.

    “…An extension of the TRIUMF M13 low-energy pion channel designed to suppress positrons based on an energy-loss technique is described. A source of beam channel…”
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    Journal Article
  17. 17

    Light absorption in a resistive-gate GaAs charge-coupled device by Hu, S., Cresswell, J. V., Bryman, D. A., Kwok, H. L.

    “…A 128 pixel uniphase resistive-gate GaAs charge-coupled device was fabricated at the TRI University Meson Facility to study its optical absorption properties…”
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    Conference Proceeding Journal Article
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    Liquid Xenon Detectors for Positron Emission Tomography by Miceli, A, Amaudruz, P, Benard, F, Bryman, D. A, Kurchaninov, L, Martin, J. P, Muennich, A, Retiere, F, Ruth, T. J, Sossi, V, Stoessl, A. J

    Published 07-04-2011
    “…J.Phys.Conf.Ser.312:062006,2011 PET is a functional imaging technique based on detection of annihilation photons following beta decay producing positrons. In…”
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    Journal Article
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    Search for Massive Neutrinos in the Decay pi --> e nu by PIENU Collaboration, Aoki, M, Blecher, M, Bryman, D. A, Chen, S, Ding, M, Doria, L, Gumplinger, P, Hurst, C, Hussein, A, Igarashi, Y, Ito, N, Kettell, S. H, Kurchaninov, L, Littenberg, L, Malbrunot, C, Numao, T, Poutissou, R, Sher, A, Sullivan, T, Yamada, K, Yoshida, M, Vavilov, D

    Published 20-06-2011
    “…Evidence of massive neutrinos in the pi --> e nu decay spectrum was sought with the background pi --> mu --> e decay chain highly suppressed. Upper limits (90%…”
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    Journal Article