R. A. Asaturyan

Measurement of R = σ L / σ T and the separated longitudinal and transverse structure functions in the nucleon-resonance region

Yiwei Liang, V. Tvaskis, M. ERIC CHRISTY, A. Ahmidouch et autres

We report on a detailed study of longitudinal strength in the nucleon resonance region, presenting new results from inclusive electron-proton cross sections measured at Jefferson Lab Hall C in the four-momentum transfer range $0.2<{Q}^{2}<5.5\phantom{\rule{4pt}{0ex}}{\mathrm{GeV}}^{2}$. The data have been used to accurately perform …

us, am, nl (code pays fourni par la source)

Measurement of the EMC effect in light and heavy nuclei

J. Arrington, J. C. Bane, A. V. Daniel, N. Fomin et autres

The authors present landmark measurements of the nuclear dependence of quark momentum distributions in nuclei, also known as the EMC effect. The experiment covers a wide range of nuclei and focuses on quarks carrying a large part of a nucleon's longitudinal momentum. …

us, am, ch (code pays fourni par la source)

Measurements of the separated longitudinal structure function F L from hydrogen and deuterium targets at low Q 2

V. Tvaskis, A. Tvaskis, I. Niculescu, D. Abbott et autres

Structure functions, as measured in lepton-nucleon scattering, have proven to be very useful in studying the partonic dynamics within the nucleon. However, it is experimentally difficult to separately determine the longitudinal and transverse structure functions, and consequently there are substantially less data …

us, ro, am, nl, ca, Afrique du Sud (code pays fourni par la source)

Direct measurements of the lifetime of medium-heavy hypernuclei

X. Qiu, Liangyu Tang, C. Chen, A. Margaryan et autres

cn, us, am, de, hr, jp (code pays fourni par la source)

Spectroscopy of the neutron-rich hypernucleus HeΛ7 from electron scattering

T. Gogami, C. Chen, Daisuke Kawama, Patrick Achenbach et autres

The missing mass spectroscopy of the $_{\mathrm{\ensuremath{\Lambda}}}^{7}\mathrm{He}$ hypernucleus was performed using the $^{7}\mathrm{Li}(e,{e}^{\ensuremath{'}}{K}^{+})\phantom{\rule{0.16em}{0ex}}_{\mathrm{\ensuremath{\Lambda}}}^{7}\mathrm{He}$ reaction at the Thomas Jefferson National Accelerator Facility Hall C. The $\mathrm{\ensuremath{\Lambda}}$-binding energy of the ground-state ($1/{2}^{+}$) was determined with a smaller error than that of the previous measurement, …

jp, us, de, hr, am, it, cn, pr (code pays fourni par la source)

Spectroscopy of neutron-rich hypernucleus, $^{7}_{\Lambda}$He by electron beam

T. Gogami, C. Chen, Daisuke Kawama, Patrick Achenbach et autres

The missing mass spectroscopy of the $^{7}_{\Lambda}$He hypernucleus was performed, using the $^{7}$Li$(e,e^{\prime}K^{+})^{7}_{\Lambda}$He reaction at the Thomas Jefferson National Accelerator Facility Hall C. The $\Lambda$ binding energy of the ground state (1/2$^{+}$) was determined with a smaller error than that of the …

High resolution spectroscopic study of Be Λ 10

T. Gogami, C. Chen, Daisuke Kawama, Patrick Achenbach et autres

This new JLab measurement demonstrates the capability of the facility to determine the ground state binding energy of $\mathrm{\ensuremath{\Lambda}}$ hypernuclei. Comparison of the measured ${}_{\mathrm{\ensuremath{\Lambda}}}^{10}$Be result with that of its mirror hypernucleus is consistent with the small charge-symmetry breaking for $p$-shell $\mathrm{\ensuremath{\Lambda}}$ …

jp, us, de, hr, am, it, cn, pr (code pays fourni par la source)

High Resolution Spectroscopic Study of $^{10}_Λ$Be

T. Gogami, C. Chen, D. Kawama, Patrick Achenbach et autres

Spectroscopy of a $^{10}_Λ$Be hypernucleus was carried out at JLab Hall C using the $(e,e^{\prime}K^{+})$ reaction. A new magnetic spectrometer system (SPL+HES+HKS), specifically designed for high resolution hypernuclear spectroscopy, was used to obtain an energy spectrum with a resolution of 0.78 MeV …

High Resolution Λ Hypernuclear Spectroscopy with Electron Beams

T. Gogami, Patrick Achenbach, A. Ahmidouch, I. Albayrak et autres

JLab E05-115 which is an experiment for Λ hypernuclear spectroscopy with electron beams was carried out at Jefferson Lab (JLab) in 2009.In the experiment, 7 Λ He, 9 Λ Li, 10 Λ Be, 12 Λ B and 52 Λ V were measured …

jp, de, us, hr, am, it, cn, pr (code pays fourni par la source)

Experiments with the High Resolution Kaon Spectrometer at JLab Hall C and the new spectroscopy of Λ12B hypernuclei

Liguang Tang, C. Chen, T. Gogami, Daisuke Kawama et autres

Since the pioneering experiment, E89-009 studying hypernuclear spectroscopy using the $(e,e^{\prime}K^+)$ reaction was completed, two additional experiments, E01-011 and E05-115, were performed at Jefferson Lab. These later experiments used a modified experimental design, the "tilt method", to dramatically suppress the large electromagnetic …

us, jp, hr, pr, de, am, it, cn (code pays fourni par la source)

The HKS Experiments at JLab Hall C and the New Spectroscopy of ${}^{12}_{\Lambda}\text{B}$ Hypernuclei

Liangyu Tang, C. Chen, T. Gogami, Daisuke Kawama et autres

Since the pioneering experiment, E89-009 studying hypernuclear spectroscopy using the $(e,e^{\prime}K^+)$ reaction was completed, two additional experiments, E01-011 and E05-115, were performed at Jefferson Lab. These later experiments used a modified experimental design, the Tilt Method, to dramatically suppress the large electromagnetic …

Spectroscopic Research of Lambda Hypdernuclei at JLab Hall C

T. Gogami, Patrick Achenbach, A. Ahmidouch, I. Albayrak et autres

jp, us, hr, am, it, cn, pr (code pays fourni par la source)