109 citations · 514 across the 16 of their papers we have counts for
12 papers · 1 filter
Precise lifetime measurement of H hypernucleus using in-flight HeH reaction
T. Akaishi, H. Asano, X. Chen +35
We present a new measurement of the H hypernuclear lifetime using in-flight + He H + reaction at the J-PARC hadron facility. We demonstrat…
Pole position of measured in reactions
PARC E31 Collaboration, S. Aikawa, S. Ajimura +74
We measured a set of , , and invariant mass spectra below and above the mass threshold in -induced reactions on deuteron. We deduced th…
Measurement of the Charge-Averaged Elastic Lepton-Proton Scattering Cross Section by the OLYMPUS Experiment
J. C. Bernauer, A. Schmidt, B. S. Henderson +67
We report the first measurement of the average of the electron-proton and positron-proton elastic scattering cross sections. This lepton charge-averaged cross section is insensitiv…
Observation of a bound state in the reaction
T. Yamaga, S. Ajimura, H. Asano +66
We have performed an exclusive measurement of the reaction at an incident kaon momentum of .In the invariant mass spectrum, a…
"", a -Meson Nuclear Bound State, Observed in Reactions
PARC E15 collaboration, S. Ajimura, H. Asano +67
We observed a distinct peak in the invariant mass spectrum of , well below the mass threshold of . By selecting a relatively large mome…
Hard Two-Photon Contribution to Elastic Lepton-Proton Scattering: Determined by the OLYMPUS Experiment
B. S. Henderson, L. D. Ice, D. Khaneft +67
The OLYMPUS collaboration reports on a precision measurement of the positron-proton to electron-proton elastic cross section ratio, , a direct measure of the contribution o…
Structure near ++ threshold in the in-flight He reaction
PARC E15 Collaboration, Y. Sada, S. Ajimura +69
To search for an S= -1 di-baryonic state which decays to , the reaction was studied at 1.0 GeV/. Unobserved neutrons were kinematically ide…
Precise determination of C level structure by -ray spectroscopy
K. Hosomi, T. Ma, S. Ajimura +30
Level structure of the C hypernucleus was precisely determined by means of -ray spectroscopy. We identified four -ray transitions via the C re…
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…
Search for the deeply bound state from the semi-inclusive forward-neutron spectrum in the in-flight reaction on helium-3
Tadashi Hashimoto, Shuhei Ajimura, George Beer +64
An experiment to search for the bound state was performed via the in-flight He( reaction using 5.3 kaons at 1 GeV/ at the J-PARC hadron exper…
Hypernuclear spectroscopy of products from 6Li projectiles on a carbon target at 2 AGeV
C. Rappold, E. Kim, D. Nakajima +50
A novel experiment, aiming at demonstrating the feasibility of hypernuclear spectroscopy with heavy-ion beams, was conducted. Using the invariant mass method, the spectroscopy of h…
Search for Theta+ via K+p -> pi+X reaction with a 1.2 GeV/c K+ beam
K. Miwa, S. Dairaku, D. Nakajima
The Theta+ was searched for via the K+p -> pi+X reaction using the 1.2 GeV/c K+ beam at the K6 beam line of the KEK-PS 12 GeV Proton Synchrotron. In the missing mass spectrum of th…