activity
20122026
most citedObservation of Lambda H-4 hyperhydrogen by decay-pion spectroscopy in electron scattering

119 citations · 588 across the 29 of their papers we have counts for

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25 papers · 1 filter

nucl-ex2026

Response to the He interpretation of MAMI's recent determination of H)

Ryoko Kino, Patrick Achenbach, Pascal Klag +5

We respond to the recent suggestion by A. Gal [arXiv:2604.18259] that the sharp pion-momentum peak at ~MeV/ observed in our $^7\mathrm{Li}(e,e^\prime K^+)…

nucl-ex2026

Precise measurement of the -binding energy difference between H and H via decay-pion spectroscopy at MAMI

Ryoko Kino, Sho Nagao, Patrick Achenbach +31

We performed high-precision decay-pion spectroscopy of light hypernuclei at the Mainz Microtron (MAMI) using the A1 spectrometer facility. By measuring the monochromatic …

nucl-ex2025

Backward-angle electroproduction of mesons off protons at and

T. Akiyama, P. Bydžovský, T. Gogami +83

The electroproduction of mesons from a target at , and $\cos θ^{\text{CM}}_{γ^{*}η'} \approx…

nucl-ex2025

Measurement of Polarization in the Reaction at GeV/ toward a New Scattering Experiment

PARC E40 Collaboration, T. Sakao, K. Miwa +69

This paper presents high-precision experimental data of the polarization of the hyperon in the reaction, measured in the angular range $0.6<\cos θ^{CM}_{K0…

nucl-ex2025★ 7 cited

Measurement of ground state energy in an electron scattering experiment at MAMI-A1

Tianhao Shao, Jinhui Chen, Josef Pochodzalla +28

For the first time the neutron-rich hydrogen isotope was produced in an electron scattering experiment in the reaction using the spectrom…

nucl-ex2024

Inclusive studies of two- and three-nucleon short-range correlations in H and He

S. Li, S. N. Santiesteban, J. Arrington +113

Inclusive electron scattering at carefully chosen kinematics can isolate scattering from the high-momentum nucleons in short-range correlations (SRCs). SRCs are produced by the har…

nucl-ex2024

Electroproduction of the Lambda/Sigma^0 hyperons at Q^2~0.5 (GeV/c)^2 at forward angles

K. Okuyama, K. Itabashi, S. Nagao +83

In 2018, the E12-17-003 experiment was conducted at the Thomas Jefferson National Accelerator Facility (JLab) to explore the possible existence of an nnLambda state in the reconstr…

nucl-ex2023

A novel measurement of the neutron magnetic form factor from A=3 mirror nuclei

S. N. Santiesteban, S. Li, D. Abrams +103

The electromagnetic form factors of the proton and neutron encode information on the spatial structure of their charge and magnetization distributions. While measurements of the pr…

nucl-ex2022★ 45 cited

Revealing the short-range structure of the "mirror nuclei" H and He

S. Li, R. Cruz-Torres, N. Santiesteban +113

When protons and neutrons (nucleons) are bound into atomic nuclei, they are close enough together to feel significant attraction, or repulsion, from the strong, short-distance part…

nucl-ex2022

Measurement of differential cross sections for elastic scattering in the momentum range 0.44-0.80 GeV/c

PARC E40 Collaboration, T. Nanamura, K. Miwa +69

We performed a novel scattering experiment at the J-PARC Hadron Experimental Facility. Approximately 2400 elastic scattering events were identified from $4.9 \times…

nucl-ex2021★ 2 cited

Precise measurement of differential cross sections of the Σ-p --> Λ n reaction in momentum range 470-650 MeV/c

PARC E40 Collaboration, K. Miwa, J. K. Ahn +69

The differential cross sections of the Σ-p --> Λ n reaction were measured accurately for the Σ- momentum (p_{Σ}) ranging from 470 to 650 MeV/c at the J-PARC Hadron Experimental Fac…

nucl-ex2021★ 22 cited

Extension of the J-PARC Hadron Experimental Facility: Third White Paper

Kazuya Aoki, Hiroyuki Fujioka, Toshiyuki Gogami +40

The J-PARC Hadron Experimental Facility was constructed with an aim to explore the origin and evolution of matter in the universe through the experiments with intense particle beam…

nucl-ex2021★ 12 cited

The cross-section measurement for the reaction

K. N. Suzuki, T. Gogami, B. Pandey +80

The small binding energy of the hypertrition leads to predictions of non-existence of bound hypernuclei for isotriplet three-body systems such as . However, invariant mass spe…

nucl-ex2021★ 1 cited

Measurement of the differential cross sections of the Sigma-p elastic scattering in momentum range of 470 to 850 MeV/c

PARC E40 Collaboration, K. Miwa, J. K. Ahn +69

A high statistics scattering experiment has been performed at the J-PARC Hadron Experimental Facility. Data for momentum-tagged running in a liquid hydrogen target wer…

nucl-ex2021★ 11 cited

Spectroscopy of hyperlithium by the reaction

T. Gogami, C. Chen, D. Kawama +84

Missing mass spectroscopy with the reaction was performed at Jefferson Laboratory's Hall C for the neutron rich hypernucleus . The ground…

nucl-ex2016★ 31 cited

Spectroscopy of the neutron-rich hypernucleus He from electron scattering

T. Gogami, C. Chen, D. Kawama +83

The missing mass spectroscopy of the He hypernucleus was performed, using the LiHe reaction at the Thomas Jefferson National Accelerator Fa…

nucl-ex2015★ 70 cited

High Resolution Spectroscopic Study of Be

T. Gogami, C. Chen, D. Kawama +83

Spectroscopy of a Be hypernucleus was carried out at JLab Hall C using the reaction. A new magnetic spectrometer system (SPL+HES+HKS), specifically d…

nucl-ex2015★ 115 cited

Observation of Spin-Dependent Charge Symmetry Breaking in Interaction: Gamma-Ray Spectroscopy of He

T. O. Yamamoto, M. Agnello, Y. Akazawa +51

The energy spacing between the ground-state spin doublet of He(1,0) was determined to be keV, by measuring rays for the transitio…

nucl-ex2015★ 119 cited

Observation of Lambda H-4 hyperhydrogen by decay-pion spectroscopy in electron scattering

A. Esser, S. Nagao, F. Schulz +38

At the Mainz Microtron MAMI, the first high-resolution pion spectroscopy from decays of strange systems was performed by electron scattering off a Be-9 target in order to study the…

nucl-ex2014★ 54 cited

The experiments with the High Resolution Kaon Spectrometer at JLab Hall C and the new spectroscopy of hypernuclei

L. Tang, C. Chen, T. Gogami +130

Since the pioneering experiment, E89-009 studying hypernuclear spectroscopy using the reaction was completed, two additional experiments, E01-011 and E05-115, w…

nucl-ex2013

Near threshold angular distributions of the HX reaction

B. Beckford, P. Bydzovsky, A. Chiba +36

A study of the HX reaction was performed using a tagged photon beam at the Research Center for Electron Photon Science (ELPH), Tohoku University. The photoproduced w…

nucl-ex2013

Direct Measurements of the Lifetime of Heavy Hypernuclei

X. Qiu, L. Tang, A. Margaryan +83

The lifetime of a Lambda particle embedded in a nucleus (hypernucleus) decreases from that of free Lambda decay due to the opening of the Lambda N to NN weak decay channel. However…

nucl-ex2012

Measurements of the photon induced production of in the HX process at threshold energies

B. Beckford, P. Bydzovsky, A. Chiba +38

An experiment was carried out with the NKS2+ in 2010 at the Research Center for Electron Photon Science (ELPH), in which tagged photon beams in the range of 0.8 1…

nucl-ex2012★ 79 cited

Observation of the Helium 7 Lambda hypernucleus by the (e,e'K+) reaction

S. N. Nakamura, A. Matsumura, Y. Okayasu +90

An experiment with a newly developed high-resolution kaon spectrometer (HKS) and a scattered electron spectrometer with a novel configuration was performed in Hall C at Jefferson L…