Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Mischke, R. E."'
Autor:
Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bruch, D. vom, Bryman, D. A., Chen, S., Comfort, J., Cuen-Rochin, S., Doria, L., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S., Kurchaninov, L., Littenberg, L. S., Malbrunot, C., Mischke, R. E., Numao, T., Protopopescu, D., Sher, A., Sullivan, T., Vavilov, D.
Publikováno v:
Phys. Rev. D 103, 052006 (2021)
The three body pion decays ${\pi}^+{\rightarrow}l^+{\nu}X~(l=e,{\mu})$, where $X$ is a weakly interacting neutral boson, were searched for using the full data set from the PIENU experiment. An improved limit on ${\Gamma}({\pi}^+{\to}e^+{\nu}X)/{\Gamm
Externí odkaz:
http://arxiv.org/abs/2101.07381
Autor:
Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bruch, D. vom, Bryman, D. A., Chen, S., Comfort, J., Cuen-Rochin, S., Doria, L., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S., Kurchaninov, L., Littenberg, L. S., Malbrunot, C., Mischke, R. E., Numao, T., Protopopescu, D., Sher, A., Sullivan, T., Vavilo, D., Gorbunov, D., Kalashnikov, D.
Publikováno v:
Phys. Rev. D 102, 012001 (2020)
The rare pion decays ${\pi}^+{\rightarrow}{\mu}^+{\nu}_{\mu}{\nu}\bar{\nu}$ and ${\pi}^+{\rightarrow}e^+{\nu}_{e}{\nu}\bar{\nu}$ are allowed in the Standard Model but highly suppressed. These decays were searched for using data from the PIENU experim
Externí odkaz:
http://arxiv.org/abs/2006.00389
Autor:
Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bruch, D. vom, Bryman, D. A., Chen, S., Comfort, J., Cuen-Rochin, S., Doria, L., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S., Kurchaninov, L., Littenberg, L. S., Malbrunot, C., Mischke, R. E., Numao, T., Protopopescu, D., Sher, A., Sullivan, T., Vavilov, D.
Publikováno v:
Phys. Rev. D 101, 052014 (2020)
Charged lepton flavor violating muon decay ${\mu}^+{\rightarrow}e^+X_H$, where $X_H$ is a massive neutral boson, was sought by searching for extra peaks in the muon decay ${\mu}^+{\rightarrow}e^+{\nu}\bar{\nu}$ energy spectrum in the $m_{X_H}$ mass r
Externí odkaz:
http://arxiv.org/abs/2002.09170
Publikováno v:
Phys. Rev. C 101, 035502 (2020)
Published data on the emission of charged particles following nuclear muon capture are extremely limited. In addition to its interest as a probe of the nuclear response, these data are important for the design of some current searches for lepton flav
Externí odkaz:
http://arxiv.org/abs/1908.06902
Autor:
Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bruch, D. vom, 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.
Heavy neutrinos were sought in pion decays $\pi^+ \rightarrow \mu^+ \nu$ by examining the observed muon energy spectrum for extra peaks in addition to the expected peak for a massless neutrino. No evidence for heavy neutrinos was observed. Upper limi
Externí odkaz:
http://arxiv.org/abs/1904.03269
Autor:
Mischke, R. E., Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bruch, D. vom, Bryman, D. A., Chen, S., Comfort, J., Cuen-Rochin, S., Doria, L., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S., Kurchaninov, L., Littenberg, L. S., Malbrunot, C., Numao, T., Protopopescu, D., Sher, A., Sullivan, T., Vavilov, D.
Two results from the PIENU Experiment are presented reporting a test of lepton universality in pion decay and improved limits on heavy neutrinos coupling to positrons. The status of the full analysis for the $\pi^+ \rightarrow \mbox{e}^+ \nu$ branchi
Externí odkaz:
http://arxiv.org/abs/1809.10314
Autor:
Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bruch, D. vom, Bryman, D. A., Chen, S., Comfort, J., Cuen-Rochin, S., Doria, L., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S., Kurchaninov, L., Littenberg, L. S., Malbrunot, C., Mischke, R. E., Numao, T., Protopopescu, D., Sher, A., Sullivan, T., Vavilov, D.
Publikováno v:
Phys. Rev. D 97, 072012 (2018)
A search for massive neutrinos has been made in the decay $\pi\rightarrow e^+ \nu$. No evidence was found for extra peaks in the positron energy spectrum indicative of pion decays involving massive neutrinos ($\pi\rightarrow e^+ \nu_h$). Upper limits
Externí odkaz:
http://arxiv.org/abs/1712.03275
Autor:
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.
The PIENU experiment at TRIUMF aims to measure the pion decay branching ratio $R={\Gamma}({\pi}^+{\rightarrow}e^+{\nu}_e({\gamma}))/{\Gamma}({\pi}^+{\rightarrow}{\mu}^+{\nu}_{\mu}({\gamma}))$ with precision $<0.1$% to provide a sensitive test of elec
Externí odkaz:
http://arxiv.org/abs/1509.08437
Autor:
Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bryman, D. A., Bruch, D. vom, 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.
Publikováno v:
Phys. Rev. Lett. 115, 071801 (2015)
A new measurement of the branching ratio, $R_{e/\mu} =\Gamma (\pi^+ \rightarrow \mbox{e}^+ \nu + \pi^+ \rightarrow \mbox{e}^+ \nu \gamma)/ \Gamma (\pi^+ \rightarrow \mu^+ \nu + \pi^+ \rightarrow \mu^+ \nu \gamma)$, resulted in $R_{e/\mu}^{exp} = (1.2
Externí odkaz:
http://arxiv.org/abs/1506.05845
Autor:
Aguilar-Arevalo, A. A., Aoki, M., Blecher, M., Bruch, D. vom, Bryman, D., Comfort, J., Cuen-Rochin, S., Doria, L., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, N., Ito, S., Kettell, S. H., Kurchaninov, L., Littenberg, L., Malbrunot, C., Mischke, R. E., Muroi, A., Numao, T., Sheffer, G., Sher, A., Sullivan, T., Tauchi, K., Vavilov, D., Yamada, K., Yoshida, M.
The PIENU experiment at TRIUMF is aimed at a measurement of the branching ratio $R^{e/\mu}$ = ${\Gamma\big((\pi^{+} \rightarrow e^{+} \nu_{e}) + (\pi^{+} \rightarrow e^{+} \nu_{e}\gamma)\big)}/{\Gamma\big((\pi^{+} \rightarrow \mu^{+} \nu_{\mu})+(\pi^
Externí odkaz:
http://arxiv.org/abs/1505.02737