S. Enomoto

activity

20122024

K^{-}

p

p

threshold in the in-flight

^{3}

(K^{-}, Λ p) n

reaction

50 citations · 200 across the 10 of their papers we have counts for

collaborators

10 papers

nucl-ex2024

Measurement of the mesonic decay branch of the $K ˉ N N$ quasi-bound state

T. Yamaga, S. Ajimura, H. Asano +67

We conducted measurements of $K^{-} +^{3} He \to π Y N + N^{'}$ reactions using a $1 GeV / c$ $K^{-}$ -beam, with the objective of understanding the broad decay width of $\bar…

nucl-ex2022★ 18 cited

Pole position of $Λ (1405)$ measured in $d (K^{-}, n) π Σ$ reactions

PARC E31 Collaboration, S. Aikawa, S. Ajimura +74

We measured a set of $π^{\pm} Σ^{\mp}$ , $π^{0} Σ^{0}$ , and $π^{-} Σ^{0}$ invariant mass spectra below and above the $K ˉ N$ mass threshold in $K^{-}$ -induced reactions on deuteron. We deduced th…

physics.ins-det2022★ 7 cited

Wideband precision stabilization of the -18.6 kV retarding voltage for the KATRIN spectrometer

C. Rodenbeck, S. Wüstling, S. Enomoto +4

The Karlsruhe Tritium Neutrino Experiment (KATRIN) measures the effective electron anti-neutrino mass with an unprecedented design sensitivity of 0.2 eV (90 % C.L.). In this experi…

nucl-ex2020★ 41 cited

Observation of a $K ˉ N N$ bound state in the $^{3} He (K^{-}, Λ p) n$ reaction

T. Yamaga, S. Ajimura, H. Asano +66

We have performed an exclusive measurement of the $K^{-} +^{3} He \to Λ p n$ reaction at an incident kaon momentum of $1 GeV / c$ .In the $Λ p$ invariant mass spectrum, a…

nucl-ex2018★ 6 cited

" $K^{-} p p$ ", a $K$ -Meson Nuclear Bound State, Observed in $^{3} He (K^{-}, Λ p) n$ Reactions

PARC E15 collaboration, S. Ajimura, H. Asano +67

We observed a distinct peak in the $Λ p$ invariant mass spectrum of $^{3} He (K^{-}, Λ p) n$ , well below the mass threshold of $m_{K} + 2 m_{p}$ . By selecting a relatively large mome…

nucl-ex2016★ 50 cited

Structure near $K^{-}$ + $p$ + $p$ threshold in the in-flight $^{3}$ He $(K^{-}, Λ p) n$ reaction

PARC E15 Collaboration, Y. Sada, S. Ajimura +69

To search for an S= -1 di-baryonic state which decays to $Λ p$ , the $^{3} He (K^{-}, Λ p) n_{mi ss in g}$ reaction was studied at 1.0 GeV/ $c$ . Unobserved neutrons were kinematically ide…

nucl-ex2015★ 20 cited

Measurement of the strong interaction induced shift and width of the 1s state of kaonic deuterium at J-PARC

J. Zmeskal, M. Sato, S. Ajimura +74

The antikaon-nucleon interaction close to threshold provides crucial information on the interplay between spontaneous and explicit chiral symmetry breaking in low-energy QCD. In th…

nucl-ex2014★ 32 cited

Search for the deeply bound $K^{-} pp$ state from the semi-inclusive forward-neutron spectrum in the in-flight $K^{-}$ reaction on helium-3

Tadashi Hashimoto, Shuhei Ajimura, George Beer +64

An experiment to search for the $K^{-} pp$ bound state was performed via the in-flight $^{3}$ He( $K^{-}, n)$ reaction using 5.3 $\times$ $1 0^{9}$ kaons at 1 GeV/ $c$ at the J-PARC hadron exper…

physics.ins-det2012★ 18 cited

The K1.8BR spectrometer system at J-PARC

Keizo Agari, Shuhei Ajimura, George Beer +81

A new spectrometer system was designed and constructed at the secondary beam line K1.8BR in the hadron hall of J-PARC to investigate $K ˉ N$ interactions and $K ˉ$ -nuclear bo…

physics.ins-det2012★ 8 cited

Development of liquid helium-3 target for experimental studies of antikaon-nucleon interaction at J-PARC

M. Iio, S. Ishimoto, M. Sato +5

A liquid helium-3 target system was developed for experimental studies of kaonic atoms and kaonic nuclei at J-PARC. helium-3 gas is liquefied in a heat exchanger cooled below 3.2 K…

Measurement of the mesonic decay branch of the KˉNN quasi-bound state

Pole position of Λ(1405) measured in d(K−,n)πΣ reactions