Search Results - "Numao, T"
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Search for heavy neutrinos in π → μν decay
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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Improved Measurement of the π→eν Branching Ratio
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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3
Measurement of the π0 electromagnetic transition form factor slope
Published in Physics letters. B (01-05-2017)“…The NA62 experiment collected a large sample of charged kaon decays in 2007 with a highly efficient trigger for decays into electrons. A measurement of the π0…”
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Study of a large NaI(Tl) crystal
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-09-2010)“…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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5
Search for massive neutrinos in π+→e+νe decay
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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Initial results from the PIENU experiment
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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Increased levels of surfactant protein A and D in bronchoalveolar lavage fluids in patients with bronchial asthma
Published in The European respiratory journal (01-11-2000)“…Surfactant proteins (SP)-A and SP-D are collagen-like glycoproteins belonging to the "collectin" class of C-type lectins, which are primarily synthesized in…”
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Search for the decay K + → π + γ γ in the π + momentum region P > 213 MeV / c
Published in Physics letters. B (15-09-2005)“…We have searched for the K{sup +} {yields} {pi}{sup +}{gamma}{gamma} decay in the kinematic region with {pi}{sup +} momentum close to the end point. No events…”
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Neuropeptides modulate human eosinophil chemotaxis
Published in The Journal of immunology (1950) (15-11-1992)“…To investigate the role of neuropeptides in allergic inflammation, we examined the effect of peptides on eosinophil chemotaxis. Eosinophils were purified from…”
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Measurement of the pi +-->e+ nu branching ratio
Published in Physical review letters (18-05-1992)Get full text
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Observation of the Decay K + → π + γ γ
Published in Physical review letters (24-11-1997)Get full text
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π− absorption in water and light material
Published in Nuclear physics. A (30-06-2003)“…We report on a search for the free-decay component of the π − stopped in water and light materials. A non-zero value of this would be an indication of v e…”
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Observation of the Decay K + → π + μ + μ
Published in Physical review letters (15-12-1997)Get full text
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Precision measurement of the ratio of the charged kaon leptonic decay rates
Published in Physics letters. B (26-02-2013)“…A precision measurement of the ratio RK of the rates of kaon leptonic decays K±→e±ν and K±→μ±ν with the full data sample collected by the NA62 experiment at…”
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Japanese guideline for the diagnosis and management of bronchial asthma (1998)--its results and reversion
Published in Nihon rinshō (01-10-2001)“…Japanese guideline for the diagnosis and management of bronchial asthma was initially reported in 1998 and revised in 2000. This guideline was based on two…”
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Measurement of the K+ → π+γγ decay
Published in Physics letters. B (01-03-2024)“…A sample of 3984 candidates of the K+→π+γγ decay, with an estimated background of 291±14 events, was collected by the NA62 experiment at CERN during 2017–2018…”
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First search for K+ → π0πμe decays
Published in Physics letters. B (01-12-2024)“…The first search for the lepton number violating decay K+→π0π−μ+e+ and lepton flavour violating decays K+→π0π+μ−e+, K+→π0π+μ+e− has been performed using a…”
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New Measurement of the K + → π + ν ν ¯ Branching Ratio
Published in Physical review letters (07-11-2008)Get full text
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Central tracking chamber with inflated cathode-strip foils
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (1998)“…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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Search for the decay K→πν in the momentum region P<195 MeV/c
Published in Physics letters. B (01-06-2002)Get full text
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