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40 results on '"Segbefia E"'

1. Measurement of R=σL/σT and the separated longitudinal and transverse structure functions in the nucleon-resonance region

Author

Liang, Y, Tvaskis, V, Christy, ME, Ahmidouch, A, Armstrong, CS, Arrington, J, Asaturyan, R, Avery, S, Baker, OK, Beck, DH, Blok, HP, Bochna, CW, Boeglin, W, Bosted, P, Bouwhuis, M, Breuer, H, Brown, DS, Bruell, A, Carlini, RD, Cha, J, Chant, NS, Cochran, A, Cole, L, Danagoulian, S, Day, DB, Dunne, J, Dutta, D, Ent, R, Fenker, HC, Fox, B, Gan, L, Gao, H, Garrow, K, Gaskell, D, Gasparian, A, Geesaman, DF, Gilman, R, Guèye, PLJ, Harvey, M, Holt, RJ, Jiang, X, Jones, M, Keppel, CE, Kinney, E, Lorenzon, W, Lung, A, Mack, DJ, Markowitz, P, Martin, JW, McIlhany, K, McKee, D, Meekins, D, Miller, MA, Milner, RG, Mitchell, JH, Mkrtchyan, H, Mueller, BA, Nathan, A, Niculescu, G, Niculescu, I, O'Neill, TG, Papavassiliou, V, Pate, SF, Piercey, RB, Potterveld, D, Ransome, RD, Reinhold, J, Rollinde, E, Rondon, O, Roos, P, Sarty, AJ, Sawafta, R, Schulte, EC, Segbefia, E, Smith, C, Stepanyan, S, Strauch, S, Tadevosyan, V, Tang, L, Tieulent, R, Uzzle, A, Vulcan, WF, Wood, SA, Xiong, F, Yuan, L, Zeier, M, Zihlmann, B, and Ziskin, V

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Synchrotrons and Accelerators, Physical Sciences, Nuclear and plasma physics
Abstract

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

Published
2022

2. Measurements of Non-Singlet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for $Q^2 = 4$ $\rm GeV^2$

Author

Albayrak, I., Mamyan, V., Christy, M. E., Ahmidouch, A., Arrington, J., Asaturyan, A., Bodek, A., Bosted, P., Bradford, R., Brash, E., Bruell, A., Butuceanu, C, Coleman, S. J., Commisso, M., Connell, S. H., Dalton, M. M., Danagoulian, S., Daniel, A., Day, D. B., Dhamija, S., Dunne, J., Dutta, D., Ent, R., Gaskell, D., Gasparian, A., Gran, R., Horn, T., Huang, Liting, Huber, G. M., Jayalath, C., Johnson, M., Jones, M. K., Kalantarians, N., Liyanage, A., Keppel, C. E., Kinney, E., Li, Y., Malace, S., Manly, S., Markowitz, P., Maxwell, J., Mbianda, N. N., McFarland, K. S., Meziane, M., Meziani, Z. E., Mills, G. B, Mkrtchyan, H., Mkrtchyan, A., Mulholland, J., Nelson, J., Niculescu, G., Niculescu, I., Pentchev, L., Puckett, A., Punjabi, V., Qattan, I. A., Reimer, P. E., Reinhold, J., Rodriguez, V. M, Rondon-Aramayo, O., Sakuda, M., Sakumoto, W. K., Segbefia, E., Seva, T., Sick, I., Slifer, K., Smith, G. R, Steinman, J., Solvignon, P., Tadevosyan, V., Tajima, S., Tvaskis, V., Smith, G. R., Vulcan, W. F., Walton, T., Wesselmann, F. R, Wood, S. A., and Ye, Zhihong

Subjects
Nuclear Experiment
Abstract

We present extractions of the nucleon non-singlet moments utilizing new precision data on the deuteron $F_2$ structure function at large Bjorken-$x$ determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new data are combined with a complementary set of data on the proton previously measured in Hall C at similar kinematics and world data sets on the proton and deuteron at lower $x$ measured at SLAC and CERN. The new Jefferson Lab data provide coverage of the upper third of the $x$ range, crucial for precision determination of the higher moments. In contrast to previous extractions, these moments have been corrected for nuclear effects in the deuteron using a new global fit to the deuteron and proton data. The obtained experimental moments represent an order of magnitude improvement in precision over previous extractions using high $x$ data. Moreover, recent exciting developments in Lattice QCD calculations provide a first ever comparison of these new experimental results with calculations of moments carried out at the physical pion mass, as well as a new approach which first calculates the quark distributions directly before determining moments.

Published
2018
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3. Measurements of Nonsinglet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for Q2=4 GeV2

Author

Albayrak, I, Mamyan, V, Christy, ME, Ahmidouch, A, Arrington, J, Asaturyan, A, Bodek, A, Bosted, P, Bradford, R, Brash, E, Bruell, A, Butuceanu, C, Coleman, SJ, Commisso, M, Connell, SH, Dalton, MM, Danagoulian, S, Daniel, A, Day, DB, Dhamija, S, Dunne, J, Dutta, D, Ent, R, Gaskell, D, Gasparian, A, Gran, R, Horn, T, Huang, Liting, Huber, GM, Jayalath, C, Johnson, M, Jones, MK, Kalantarians, N, Liyanage, A, Keppel, CE, Kinney, E, Li, Y, Malace, S, Manly, S, Markowitz, P, Maxwell, J, Mbianda, NN, McFarland, KS, Meziane, M, Meziani, ZE, Mills, GB, Mkrtchyan, H, Mkrtchyan, A, Mulholland, J, Nelson, J, Niculescu, G, Niculescu, I, Pentchev, L, Puckett, A, Punjabi, V, Qattan, IA, Reimer, PE, Reinhold, J, Rodriguez, VM, Rondon-Aramayo, O, Sakuda, M, Sakumoto, WK, Segbefia, E, Seva, T, Sick, I, Slifer, K, Smith, GR, Steinman, J, Solvignon, P, Tadevosyan, V, Tajima, S, Tvaskis, V, Vulcan, WF, Walton, T, Wesselmann, FR, Wood, SA, and Ye, Zhihong

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, E06-009 Collaboration, nucl-ex, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

We present extractions of the nucleon nonsinglet moments utilizing new precision data on the deuteron F_{2} structure function at large Bjorken-x determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new data are combined with a complementary set of data on the proton previously measured in Hall C at similar kinematics and world datasets on the proton and deuteron at lower x measured at SLAC and CERN. The new Jefferson Lab data provide coverage of the upper third of the x range, crucial for precision determination of the higher moments. In contrast to previous extractions, these moments have been corrected for nuclear effects in the deuteron using a new global fit to the deuteron and proton data. The obtained experimental moments represent an order of magnitude improvement in precision over previous extractions using high x data. Moreover, recent exciting developments in lattice QCD calculations provide a first ever comparison of these new experimental results with calculations of moments carried out at the physical pion mass, as well as a new approach that first calculates the quark distributions directly before determining moments.

Published
2019

4. Measurements of the separated longitudinal structure function FL from hydrogen and deuterium targets at low Q2

Author

Tvaskis, V, Tvaskis, A, Niculescu, I, Abbott, D, Adams, GS, Afanasev, A, Ahmidouch, A, Angelescu, T, Arrington, J, Asaturyan, R, Avery, S, Baker, OK, Benmouna, N, Berman, BL, Biselli, A, Blok, HP, Boeglin, WU, Bosted, PE, Brash, E, Breuer, H, Chang, G, Chant, N, Christy, ME, Connell, SH, Dalton, MM, Danagoulian, S, Day, D, Dodario, T, Dunne, JA, Dutta, D, El Khayari, N, Ent, R, Fenker, HC, Frolov, VV, Gaskell, D, Garrow, K, Gilman, R, Gueye, P, Hafidi, K, Hinton, W, Holt, RJ, Horn, T, Huber, GM, Jackson, H, Jiang, X, Jones, MK, Joo, K, Kelly, JJ, Keppel, CE, Kuhn, J, Kinney, E, Klein, A, Kubarovsky, V, Liang, Y, Lolos, G, Lung, A, Mack, D, Malace, S, Markowitz, P, Mbianda, G, McGrath, E, McKee, D, Meekins, DG, Mkrtchyan, H, Napolitano, J, Navasardyan, T, Niculescu, G, Nozar, M, Ostapenko, T, Papandreou, Z, Potterveld, D, Reimer, PE, Reinhold, J, Roche, J, Rock, SE, Schulte, E, Segbefia, E, Smith, C, Smith, GR, Stoler, P, Tadevosyan, V, Tang, L, Telfeyan, J, Todor, L, Ungaro, M, Uzzle, A, Vidakovic, S, Villano, A, Vulcan, WF, Warren, G, Wesselmann, F, Wojtsekhowski, B, Wood, SA, Yan, C, and Zihlmann, B

Abstract

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 available in particular for the longitudinal structure function. Here, we present separated structure functions for hydrogen and deuterium at low four-momentum transfer squared, Q2

Published
2018

5. Measurements of the Separated Longitudinal Structure Function F_L from Hydrogen and Deuterium Targets at Low Q^2

Author

Tvaskis, V., Tvaskis, A., Niculescu, I., Abbott, D., Adams, G. S., Afanasev, A., Ahmidouch, A., Angelescu, T., Arrington, J., Asaturyan, R., Avery, S., Baker, O. K., Benmouna, N., Berman, B. L., Biselli, A., Blok, H. P., Boeglin, W. U., Bosted, P. E., Brash, E., Breuer, H., Chang, G., Chant, N., Christy, M. E., Connell, S. H., Dalton, M. M., Danagoulian, S., Day, D., Dodario, T., Dunne, J. A., Dutta, D., Khayari, N. El, Ent, R., Fenker, H. C., Frolov, V. V., Gaskell, D., Garrow, K., Gilman, R., Gueye, P., Hafidi, K., Hinton, W., Holt, R. J., Horn, T., Huber, G. M., Jackson, H., Jiang, X., Jones, M. K., Joo, K., Kelly, J. J., Keppel, C. E., Kuhn, J., Kinney, E., Klein, A., Kubarovsky, V., Liang, M., Liang, Y., Lolos, G., Lung, A., Mack, D., Malace, S., Markowitz, P., Mbianda, G., McGrath, E., Mckee, D., McKee, P., Meekins, D. G., Mkrtchyan, H., Moziak, B., Napolitano, J., Navasardyan, T., Niculescu, G., Nozar, M., Ostapenko, T., Papandreou, Z., Potterveld, D., Reimer, P. E., Reinhold, J., Roche, J., Rock, S. E., Schulte, E., Segbefia, E., Smith, C., Smith, G. R., Stoler, P., Tadevosyan, V., Tang, L., Telfeyan, J., Todor, L., Ungaro, M., Uzzle, A., Vidakovic, S., Villano, A., Vulcan, W. F., Wang, M., Warren, G., Wesselmann, F., Wojtsekhowski, B., Wood, S. A., Xu, C., Yan, C., Yuan, L., Zheng, X., Zihlmann, B., and Zhu, H.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Structure functions, as measured in lepton-nucleon scattering, have proven to be very useful in studying the quark 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 available for the longitudinal structure function in particular. Here we present separated structure functions for hydrogen and deuterium at low four--momentum transfer squared, Q^2< 1 GeV^2, and compare these with parton distribution parameterizations and a k_T factorization approach. While differences are found, the parameterizations generally agree with the data even at the very low Q^2 scale of the data. The deuterium data show a smaller longitudinal structure function, and smaller ratio of longitudinal to transverse cross section R, than the proton. This suggests either an unexpected difference in R for the proton and neutron or a suppression of the gluonic distribution in nuclei., Comment: 11 pages, 7 figures, 2 data tables

Published
2016
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6. The experiments with the High Resolution Kaon Spectrometer at JLab Hall C and the new spectroscopy of ${}^{12}_{\Lambda}\text{B}$ hypernuclei

Author

Tang, L., Chen, C., Gogami, T., Kawama, D., Han, Y., Yuan, L., Matsumura, A., Okayasu, Y., Seva, T., Rodriguez, V. M., Baturin, P., Acha, A., Achenbach, P., Ahmidouch, A., Albayrak, I., Androic, D., Asaturyan, A., Asaturyan, R., Ates, O., Badui, R., Baker, O. K., Benmokhtar, F., Boeglin, W., Bono, J., Bosted, P., Brash, E., Carter, P., Carlini, R., Chiba, A., Christy, M. E., Cole, L., Dalton, M. M., Danagoulian, S., Daniel, A., De Leo, R., Dharmawardane, V., Doi, D., Egiyan, K., Elaasar, M., Ent, R., Fenker, H., Fujii, Y., Furic, M., Gabrielyan, M., Gan, L., Garibaldi, F., Gaskell, D., Gasparian, A., Gibson, E. F., Gueye, P., Hashimoto, O., Honda, D., Horn, T., Hu, B., Hungerford, Ed V., Jayalath, C., Jones, M., Johnston, K., Kalantarians, N., Kanda, H., Kaneta, M., Kato, F., Kato, S., Kawai, M., Keppel, C., Khanal, H., Kohl, M., Kramer, L., Lan, K. J., Li, Y., Liyanage, A., Luo, W., Mack, D., Maeda, K., Malace, S., Margaryan, A., Marikyan, G., Markowitz, P., Maruta, T., Maruyama, N., Maxwell, V., Millener, D. J., Miyoshi, T., Mkrtchyan, A., Mkrtchyan, H., Motoba, T., Nagao, S., Nakamura, S. N., Narayan, A., Neville, C., Niculescu, G., Niculescu, M. I., Nunez, A., Nuruzzaman, Nomura, H., Nonaka, K., Ohtani, A., Oyamada, M., Perez, N., Petkovic, T., Pochodzalla, J., Qiu, X., Randeniya, S., Raue, B., Reinhold, J., Rivera, R., Roche, J., Samanta, C., Sato, Y., Sawatzky, B., Segbefia, E. K., Schott, D., Shichijo, A., Simicevic, N., Smith, G., Song, Y., Sumihama, M., Tadevosyan, V., Takahashi, T., Taniya, N., Tsukada, K., Tvaskis, V., Veilleux, M., Vulcan, W., Wells, S., Wesselmann, F. R., Wood, S. A., Yamamoto, T., Yan, C., Ye, Z., Yokota, K., Zhamkochyan, S., and Zhu, L.

Subjects
Nuclear Experiment
Abstract

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 background, and allowed for a substantial increase in luminosity. Additionally, a new kaon spectrometer, HKS (E01-011), a new electron spectrometer, HES, and a new splitting magnet were added to produce precision, high-resolution hypernuclear spectroscopy. These two experiments, E01-011 and E05-115, resulted in two new data sets, producing sub-MeV energy resolution in the spectra of ${}^{7}_{\Lambda}\text{He}$, ${}^{12}_{\Lambda}\text{B}$ and ${}^{28}_{\Lambda}\text{Al}$ and ${}^{7}_{\Lambda}\text{He}$, ${}^{10}_{\Lambda}\text{Be}$, ${}^{12}_{\Lambda}\text{B}$ and ${}^{52}_{\Lambda}\text{V}$. All three experiments obtained a ${}^{12}_{\Lambda}\text{B}$, spectrum, which is the most characteristic $p$-shell hypernucleus and is commonly used for calibration. Independent analyses of these different experiments demonstrate excellent consistency and provide the clearest level structure to date of this hypernucleus as produced by the $(e,e^{\prime}K^+)$ reaction. This paper presents details of these experiments, and the extraction and analysis of the observed ${}^{12}_{\Lambda}\text{B}$ spectrum.

Published
2014
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7. Observation of the Helium 7 Lambda hypernucleus by the (e,e'K+) reaction

Author

Nakamura, S. N., Matsumura, A., Okayasu, Y., Seva, T., Rodriguez, V. M., Baturin, P., Yuan, L., Acha, A., Ahmidouch, A., Androic, D., Asaturyan, A., Asaturyan, R., Baker, O. K., Benmokhtar, F., Bosted, P., Carlini, R., Chen, C., Christy, M., Cole, L., Danagoulian, S., Daniel, A., Dharmawardane, V., Egiyan, K., Elaasar, M., Ent, R., Fenker, H., Fujii, Y., Furic, M., Gan, L., Gaskell, D., Gasparian, A., Gibson, E. F., Gogami, T., Gueye, P., Han, Y., Hashimoto, O., Hiyama, E., Honda, D., Horn, T., Hu, B., Hungerford, Ed V., Jayalath, C., Jones, M., Johnston, K., Kalantarians, N., Kanda, H., Kaneta, M., Kato, F., Kato, S., Kawama, D., Keppel, C., Lan, K. J., Luo, W., Mack, D., Maeda, K., Malace, S., Margaryan, A., Marikyan, G., Markowitz, P., Maruta, T., Maruyama, N., Miyoshi, T., Mkrtchyan, A., Mkrtchyan, H., Nagao, S., Navasardyan, T., Niculescu, G., Niculescu, M. -I., Nomura, H., Nonaka, K., Ohtani, A., Oyamada, M., Perez, N., Petkovic, T., Randeniya, S., Reinhold, J., Roche, J., Sato, Y., Segbefia, E. K., Simicevic, N., Smith, G., Song, Y., Sumihama, M., Tadevosyan, V., Takahashi, T., Tang, L., Tsukada, K., Tvaskis, V., Vulcan, W., Wells, S., Wood, S. A., Yan, C., and Zhamkochyan, S.

Subjects
Nuclear Experiment
Abstract

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 Lab (JLab). The ground state of a neutron-rich hypernucleus, He 7 Lambda, was observed for the first time with the (e,e'K+) reaction with an energy resolution of ~0.6 MeV. This resolution is the best reported to date for hypernuclear reaction spectroscopy. The he 7 Lambda binding energy supplies the last missing information of the A=7, T=1 hypernuclear iso-triplet, providing a new input for the charge symmetry breaking (CSB) effect of \Lambda N potential., Comment: 5 pages, 4 figures, submitted to PRL

Published
2012
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8. New measurements of high-momentum nucleons and short-range structures in nuclei

Author

Fomin, N., Arrington, J., Asaturyan, R., Benmokhtar, F., Boeglin, W., Bosted, P., Bruell, A., Bukhari, M. H. S., Chudakov, E., Clasie, B., Connell, S. H., Dalton, M. M., Daniel, A., Day, D. B., Dutta, D., Ent, R., Fassi, L. El, Fenker, H., Filippone, B. W., Garrow, K., Gaskell, D., Hill, C., Holt, R. J., Horn, T., Jones, M. K., Jourdan, J., Kalantarians, N., Keppel, C. E., Kiselev, D., Kotulla, M., Lindgren, R., Lung, A. F., Malace, S., Markowitz, P., McKee, P., Meekins, D. G., Mkrtchyan, H., Navasardyan, T., Niculescu, G., Opper, A. K., Perdrisat, C., Potterveld, D. H., Punjabi, V., Qian, X., Reimer, P. E., Roche, J., Rodriguez, V. M., Rondon, O., Schulte, E., Seely, J., Segbefia, E., Slifer, K., Smith, G. R., Solvignon, P., Tadevosyan, V., Tajima, S., Tang, L., Testa, G., Trojer, R., Tvaskis, V., Vulcan, W. F., Wasko, C., Wesselmann, F. R., Wood, S. A., Wright, J., and Zheng, X.

Subjects
Nuclear Experiment
Abstract

We present new measurements of electron scattering from high-momentum nucleons in nuclei. These data allow an improved determination of the strength of two-nucleon correlations for several nuclei, including light nuclei where clustering effects can, for the first time, be examined. The data also include the kinematic region where three-nucleon correlations are expected to dominate., Comment: 5 pages, 3 figures. Results from JLab E02-019

Published
2011
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9. Nuclear transparency and effective kaon-nucleon cross section from the A(e, e'K+) reaction

Author

Nuruzzaman, Dutta, D., Arrington, J., Asaturyan, R., Benmokhtar, F., Boeglin, W., Bosted, P., Bruell, A., Clasie, B., Christy, M. E., Chudakov, E., Dalton, M. M., Daniel, A., Day, D., Fassi, L. El, Ent, R., Fenker, H. C., Ferrer, J., Fomin, N., Gao, H., Garrow, K., Gaskel, D., Gray, C., Horn, T., Huber, G. M., Jones, M. K., Kalantarians, N., Keppel, C. E., Kramer, K., Li, Y., Liang, Y., Lung, A. F., Malace, S., Markowitz, P., Matsumura, A., Meekins, D. G., Mertens, T., Miyoshi, T., Mkrtchyan, H., Monson, R., Navasardyan, T., Niculescu, G., Niculescu, I., Okayasu, Y., Opper, A. K., Perdrisat, C., Punjabi, V., Qian, X., Rauf, A. W., Rodriquez, V. M., Rohe, D., Seely, J., Segbefia, E., Smith, G. R., Sumihama, M., Tadevosyan, V., Tang, L., Tvaskis, V., Vulcan, W. F., Wesselmann, F. R., Wood, S. A., Yuan, L., and Zheng, X. C.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

We have determined the transparency of the nuclear medium to kaons from $A(e,e^{'} K^{+})$ measurements on $^{12}$C, $^{63}$Cu, and $^{197}$Au targets. The measurements were performed at the Jefferson Laboratory and span a range in four-momentum-transfer squared Q$^2$=1.1 -- 3.0 GeV$^2$. The nuclear transparency was defined as the ratio of measured kaon electroproduction cross sections with respect to deuterium, ($\sigma^{A}/\sigma^{D}$). We further extracted the atomic number ($A$) dependence of the transparency as parametrized by $T= (A/2)^{\alpha-1}$ and, within a simple model assumption, the in-medium effective kaon-nucleon cross sections. The effective cross sections extracted from the electroproduction data are found to be smaller than the free cross sections determined from kaon-nucleon scattering experiments, and the parameter $\alpha$ was found to be significantly larger than those obtained from kaon-nucleus scattering. We have included similar comparisons between pion- and proton-nucleon effective cross sections as determined from electron scattering experiments, and pion-nucleus and proton-nucleus scattering data., Comment: 7 pages, 5 figures

Published
2011
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10. Semi-Inclusive Charged-Pion Electroproduction off Protons and Deuterons: Cross Sections, Ratios and Access to the Quark-Parton Model at Low Energies

Author

Asaturyan, R., Ent, R., Mkrtchyan, H., Navasardyan, T., Tadevosyan, V., Adams, G. S., Ahmidouch, A., Angelescu, T., Arrington, J., Asaturyan, A., Baker, O. K., Benmouna, N., Bertoncini, C., Blok, H. P., Boeglin, W. U., Bosted, P. E., Breuer, H., Christy, M. E., Connell, S. H., Cui, Y., Dalton, M. M., Danagoulian, S., Day, D., Dunne, J. A., Dutta, D., Khayari, N. El, Fenker, H. C., Frolov, V. V., Gan, L., Gaskell, D., Hafidi, K., Hinton, W., Holt, R. J., Horn, T., Huber, G. M., Hungerford, E., Jiang, X., Jones, M., Joo, K., Kalantarians, N., Kelly, J. J., Keppel, C. E., Kubarovsky, V., Li, Y., Liang, Y., Mack, D., Malace, S. P., Markowitz, P., McGrath, E., McKee, P., Meekins, D. G., Mkrtchyan, A., Moziak, B., Niculescu, G., Niculescu, I., Opper, A. K., Ostapenko, T., Reimer, P. E., Reinhold, J., Roche, J., Rock, S. E., Schulte, E., Segbefia, E., Smith, C., Smith, G. R., Stoler, P., Tang, L., Ungaro, M., Uzzle, A., Vidakovic, S., Villano, A., Vulcan, W. F., Wang, M., Warren, G., Wesselmann, F. R., Wojtsekhowski, B., Wood, S. A., Xu, C., Yuan, L., and Zheng, X.

Subjects
Nuclear Experiment
Abstract

A large set of cross sections for semi-inclusive electroproduction of charged pions ($\pi^\pm$) from both proton and deuteron targets was measured. The data are in the deep-inelastic scattering region with invariant mass squared $W^2$ > 4 GeV$^2$ and range in four-momentum transfer squared $2 < Q^2 < 4$ (GeV/c)$^2$, and cover a range in the Bjorken scaling variable 0.2 < x < 0.6. The fractional energy of the pions spans a range 0.3 < z < 1, with small transverse momenta with respect to the virtual-photon direction, $P_t^2 < 0.2$ (GeV/c)$^2$. The invariant mass that goes undetected, $M_x$ or W', is in the nucleon resonance region, W' < 2 GeV. The new data conclusively show the onset of quark-hadron duality in this process, and the relation of this phenomenon to the high-energy factorization ansatz of electron-quark scattering and subsequent quark --> pion production mechanisms. The x, z and $P_t^2$ dependences of several ratios (the ratios of favored-unfavored fragmentation functions, charged pion ratios, deuteron-hydrogen and aluminum-deuteron ratios for $\pi^+$ and $\pi^-$) have been studied. The ratios are found to be in good agreement with expectations based upon a high-energy quark-parton model description. We find the azimuthal dependences to be small, as compared to exclusive pion electroproduction, and consistent with theoretical expectations based on tree-level factorization in terms of transverse-momentum-dependent parton distribution and fragmentation functions. In the context of a simple model, the initial transverse momenta of $d$ quarks are found to be slightly smaller than for $u$ quarks, while the transverse momentum width of the favored fragmentation function is about the same as for the unfavored one, and both fragmentation widths are larger than the quark widths.

Published
2011
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11. Scaling of the F_2 structure function in nuclei and quark distributions at x>1

Author

Fomin, N., Arrington, J., Day, D. B., Gaskell, D., Daniel, A., Seely, J., Asaturyan, R., Benmokhtar, F., Boeglin, W., Boillat, B., Bosted, P., Bruell, A., Bukhari, M. H. S., Christy, M. E., Chudakov, E., Clasie, B., Connell, S. H., Dalton, M. M., Dutta, D., Ent, R., Fassi, L. El, Fenker, H., Filippone, B. W., Garrow, K., Hill, C., Holt, R. J., Horn, T., Jones, M. K., Jourdan, J., Kalantarians, N., Keppel, C. E., Kiselev, D., Kotulla, M., Lindgren, R., Lung, A. F., Malace, S., Markowitz, P., McKee, P., Meekins, D. G., Miyoshi, T., Mkrtchyan, H., Navasardyan, T., Niculescu, G., Okayasu, Y., Opper, A. K., Perdrisat, C., Potterveld, D. H., Punjabi, V., Qian, X., Reimer, P. E., Roche, J., Rodriguez, V. M., Rondon, O., Schulte, E., Segbefia, E., Slifer, K., Smith, G. R., Solvignon, P., Tadevosyan, V., Tajima, S., Tang, L., Testa, G., Trojer, R., Tvaskis, V., Vulcan, W. F., Wasko, C., Wesselmann, F. R., Wood, S. A., Wright, J., and Zheng, X.

Subjects
Nuclear Experiment
Abstract

We present new data on electron scattering from a range of nuclei taken in Hall C at Jefferson Lab. For heavy nuclei, we observe a rapid falloff in the cross section for $x>1$, which is sensitive to short range contributions to the nuclear wave-function, and in deep inelastic scattering corresponds to probing extremely high momentum quarks. This result agrees with higher energy muon scattering measurements, but is in sharp contrast to neutrino scattering measurements which suggested a dramatic enhancement in the distribution of the `super-fast' quarks probed at x>1. The falloff at x>1 is noticeably stronger in ^2H and ^3He, but nearly identical for all heavier nuclei., Comment: 5 pages, 4 figures, to be submitted to physical review

Published
2010
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12. New measurements of the EMC effect in very light nuclei

Author

Seely, J., Daniel, A., Gaskell, D., Arrington, J., Fomin, N., Solvignon, P., Asaturyan, R., Benmokhtar, F., Boeglin, W., Boillat, B., Bosted, P., Bruell, A., Bukhari, M. H. S., Christy, M. E., Clasie, B., Connell, S., Dalton, M., Day, D., Dunne, J., Dutta, D., Fassi, L. El, Ent, R., Fenker, H., Filippone, B. W., Gao, H., Hill, C., Holt, R. J., Horn, T., Hungerford, E., Jones, M. K., Jourdan, J., Kalantarians, N., Keppel, C. E., Kiselev, D., Kotulla, M., Lee, C., Lung, A. F., Malace, S., Meekins, D. G., Mertens, T., Mkrtchyan, H., Navasardyan, T., Niculescu, G., Niculescu, I., Nomura, H., Okayasu, Y., Opper, A. K., Perdrisat, C., Potterveld, D. H., Punjabi, V., Qian, X., Reimer, P. E., Roche, J., Rodriguez, V. M., Rondon, O., Schulte, E., Segbefia, E., Slifer, K., Smith, G. R., Tadevosyan, V., Tajima, S., Tang, L., Testa, G., Trojer, R., Tvaskis, V., Vulcan, W. F., Wesselmann, F. R., Wood, S. A., Wright, J., Yuan, L., and Zheng, X.

Subjects
Nuclear Experiment, High Energy Physics - Phenomenology
Abstract

New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from 2H, 3He, 4He, 9Be and 12C for 0.3

Published
2009
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13. Electroproduction of Eta Mesons in the S11(1535) Resonance Region at High Momentum Transfer

Author

Dalton, M. M., Adams, G. S., Ahmidouch, A., Angelescu, T., Arrington, J., Asaturyan, R., Baker, O. K., Benmouna, N., Bertoncini, C., Boeglin, W. U., Bosted, P. E., Breuer, H., Christy, M. E., Connell, S. H., Cui, Y., Danagoulian, S., Day, D., Dodario, T., Dunne, J. A., Dutta, D., Khayari, N. El, Ent, R., Fenker, H. C., Frolov, V. V., Gan, L., Gaskell, D., Hafidi, K., Hinton, W., Holt, R. J., Horn, T., Huber, G. M., Hungerford, E., Jiang, X., Jones, M. K., Joo, K., Kalantarians, N., Kelly, J. J., Keppel, C. E., Kubarovsky, V., Li, Y., Liang, Y., Malace, S., Markowitz, P., McKee, P., Meekins, D. G., Mkrtchyan, H., Moziak, B., Navasardyan, T., Niculescu, G., Niculescu, I., Opper, A. K., Ostapenko, T., Reimer, P. E., Reinhold, J., Roche, J., Rock, S. E., Schulte, E., Segbefia, E., Smith, C., Smith, G. R., Stoler, P., Tadevosyan, V., Tang, L., Tvaskis, V., Ungaro, M., Uzzle, A., Vidakovic, S., Villano, A., Vulcan, W. F., Wang, M., Warren, G., Wesselmann, F. R., Wojtsekhowski, B., Wood, S. A., Xu, C., Yuan, L., Zheng, X., and Zhu, H.

Subjects
High Energy Physics - Experiment
Abstract

The differential cross-section for the process p(e,e'p)eta has been measured at Q2 ~ 5.7 and 7.0 (GeV/c)2 for centre-of-mass energies from threshold to 1.8 GeV, encompassing the S11(1535) resonance, which dominates the channel. This is the highest momentum transfer measurement of this exclusive process to date. The helicity-conserving transition amplitude A_1/2, for the production of the S11(1535) resonance, is extracted from the data. Within the limited Q2 now measured, this quantity appears to begin scaling as 1/Q3 - a predicted, but not definitive, signal of the dominance of perturbative QCD, at Q2 ~ 5 (GeV/c)2., Comment: LaTeX, 30 pages, 29 figures, uses longtable.sty, slashbox.sty, ifthen.sty; (v2) corrected figure inclusions; (v3) changes in filenames for prc and added Report-no; (v4) correction based on comments from referee {small changes to abstract and conclusion, inserted figure 9, other small changes to the text} (v5) very minor additions to improve clarity

Published
2008
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14. Transverse momentum dependence of semi-inclusive pion production

Author

Mkrtchyan, H., Bosted, P. E., Adams, G. S., Ahmidouch, A., Angelescu, T., Arrington, J., Asaturyan, R., Baker, O. K., Benmouna, N., Bertoncini, C., Blok, H. P., Boeglin, W. U., Breuer, H., Christy, M. E., Connell, S. H., Cui, Y., Dalton, M. M., Danagoulian, S., Day, D., Dodario, T., Dunne, J. A., Dutta, D., Khayari, N. El, Ent, R., Fenker, H. C., Frolov, V. V., Gan, L., Gaskell, D., Hafidi, K., Hinton, W., Holt, R. J., Horn, T., Huber, G. M., Hungerford, E., Jiang, X., Jones, M., Joo, K., Kalantarians, N., Kelly, J. J., Keppel, C. E., Kubarovsky, V., Li, Y., Liang, Y., Malace, S., Markowitz, P., McGrath, E., McKee, P., Meekins, D. G., Moziak, B., Navasardyan, T., Niculescu, G., Niculescu, I., Opper, A. K., Ostapenko, T., Reimer, P. E., Reinhold, J., Roche, J., Rock, S. E., Schulte, E., Segbefia, E., Smith, C., Smith, G. R., Stoler, P., Tadevosyan, V., Tang, L., Ungaro, M., Uzzle, A., Vidakovic, S., Villano, A., Vulcan, W. F., Wang, M., Warren, G., Wesselmann, F., Wojtsekhowski, B., Wood, S. A., Xu, C., Yuan, L., Zheng, X., and Zhu, H.

Subjects
High Energy Physics - Phenomenology
Abstract

Cross sections for semi-inclusive electroproduction of charged pions ($\pi^{\pm}$) from both proton and deuteron targets were measured for $0.2

Published
2007
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15. Nuclear transparency from quasielastic 12C(e,e'p)

Author

Rohe, D., Benhar, O., Armstrong, C. S., Asaturyan, R., Baker, O. K., Bueltmann, S., Carasco, C., Day, D., Ent, R., Fenker, H. C., Garrow, K., Gasparian, A., Gueye, P., Hauger, M., Honegger, A., Jourdan, J., Keppel, C. E., Kubon, G., Lindgren, R., Lung, A., Mack, D. J., Mitchell, J. H., Mkrtchyan, H., Mocelj, D., Normand, K., Petitjean, T., Rondon, O., Segbefia, E., Sick, I., Stepanyan, S., Tang, L., Tiefenbacher, F., Vulcan, W. F., Warren, G., Wood, S. A., Yuan, L., Zeier, M., Zhu, H., and Zihlmann, B.

Subjects
Nuclear Experiment
Abstract

We studied the reaction 12C(e,e'p) in quasielastic kinematics at momentum transfers between 0.6 and 1.8 (GeV/c)^2 covering the single-particle region. From this the nuclear transparency factors are extracted using two methods. The results are compared to theoretical predictions obtained using a generalization of Glauber theory described in this paper. Furthermore, the momentum distribution in the region of the 1s-state up to momenta of 300 MeV/c is obtained from the data and compared to the Correlated Basis Function theory and the Independent-Particle Shell model., Comment: accepted by Phys. Rev. C

Published
2005
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16. Measurement of R = sigma_L / sigma_T and the Separated Longitudinal and Transverse Structure Functions in the Nucleon Resonance Region

Author

Collaboration, The Jefferson Lab Hall C E94-110, Liang, Y., Tvaskis, V., Christy, M. E., Ahmidouch, A., Armstrong, C. S., Arrington, J., Asaturyan, R., Avery, S., Baker, O. K., Beck, D. H., Blok, H. P., Bochna, C. W., Boeglin, W., Bosted, P., Bouwhuis, M., Breuer, H., Brown, D. S., Bruell, A., Carlini, R. D., Cha, J., Chant, N. S., Cochran, A., Cole, L., Danagoulian, S., Day, D. B., Dunne, J., Dutta, D., Ent, R., Fenker, H. C., Fox, B., Gan, L., Gao, H., Garrow, K., Gaskell, D., Gasparian, A., Geesaman, D. F., Gilman, R., Gu`eye, P. L. J., Harvey, M., Holt, R. J., Jiang, X., Jones, M., Keppel, C. E., Kinney, E., Lorenzon, W., Lung, A., Mack, D. J., Markowitz, P., Martin, J. W., McIlhany, K., McKee, D., Meekins, D., Miller, M. A., Milner, R. G., Mitchell, J. H., Mkrtchyan, H., Mueller, B. A., Nathan, A., Niculescu, G., Niculescu, I., O'Neill, T. G., Papavassiliou, V., Pate, S. F., Piercey, R. B., Potterveld, D., Ransome, R. D., Reinhold, J., Rollinde, E., Rondon, O., Roos, P., Sarty, A. J., Sawafta, R., Schulte, E. C., Segbefia, E., Smith, C., Stepanyan, S., Strauch, S., Tadevosyan, V., Tang, L., Tieulent, R., Uzzle, A., Vulcan, W. F., Wood, S. A., Xiong, F., Yuan, L., Zeier, M., Zihlmann, B., and Ziskin, V.

Subjects
Nuclear Experiment
Abstract

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 GeV^2. The data have been used to accurately perform 167 Rosenbluth-type longitudinal / transverse separations. The precision R = sigma_L / sigma_T data are presented here, along with the first separate values of the inelastic structure functions F_1 and F_L in this regime. The resonance longitudinal component is found to be significant, both in magnitude and in the existence of defined mass peaks. Additionally, quark-hadron duality is here observed above Q^2 = 1 GeV^2 in the separated structure functions independently., Comment: 5 pages, 4 figures

Published
2004

17. Correlated Strength in Nuclear Spectral Function

Author

Rohe, D., Armstrong, C. S., Asaturyan, R., Baker, O. K., Bueltmann, S., Carasco, C., Day, D., Ent, R., Fenker, H. C., Garrow, K., Gasparian, A., Gueye, P., Hauger, M., Honegger, A., Jourdan, J., Keppel, C. E., Kubon, G., Lindgren, R., Lung, A., Mack, D. J., Mitchell, J. H., Mkrtchyan, H., Mocelj, D., Normand, K., Petitjean, T., Rondon, O., Segbefia, E., Sick, I., Stepanyan, S., Tang, L., Tiefenbacher, F., Vulcan, W. F., Warren, G., Wood, S. A., Yuan, L., Zeier, M., Zhu, H., and Zihlmann, B.

Subjects
Nuclear Experiment
Abstract

We have carried out an (e,e'p) experiment at high momentum transfer and in parallel kinematics to measure the strength of the nuclear spectral function S(k,E) at high nucleon momenta k and large removal energies E. This strength is related to the presence of short-range and tensor correlations, and was known hitherto only indirectly and with considerable uncertainty from the lack of strength in the independent-particle region. This experiment confirms by direct measurement the correlated strength predicted by theory., Comment: 4 pages, 2 figures, accepted by Phys. Rev. Lett

Published
2004
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18. Measurements of Nonsinglet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for Q^{2}=4 GeV^{2}

Author

Albayrak, I., Mamyan, V., Christy, M. E., Ahmidouch, A., Arrington, J., Asaturyan, A., Bodek, A., Bosted, P., Bradford, R., Brash, E., Bruell, A., Butuceanu, C., Coleman, S. J., Commisso, M., Connell, S. H., Dalton, M. M., Danagoulian, S., Daniel, A., Day, D. B., Dhamija, S., Dunne, J., Dutta, D., Ent, R., Gaskell, D., Gasparian, A., Gran, R., Horn, T., Huang, Liting, Huber, G. M., Jayalath, C., Johnson, M., Jones, M. K., Kalantarians, N., Liyanage, A., Keppel, C. E., Kinney, E., Li, Y., Malace, S., Manly, S., Markowitz, P., Maxwell, J., Mbianda, N. N., McFarland, K. S., Meziane, M., Meziani, Z. E., Mills, G. B., Mkrtchyan, H., Mkrtchyan, A., Mulholland, J., Nelson, J., Niculescu, G., Niculescu, I., Pentchev, L., Puckett, A., Punjabi, V., Qattan, I. A., Reimer, P. E., Reinhold, J., Rodriguez, V. M., Rondon- Aramayo, O., Sakuda, M., Sakumoto, W. K., Segbefia, E., Seva, T., Sick, I., Slifer, K., Smith, G. R., Steinman, J., Solvignon, P., Tadevosyan, V., Tajima, S., Tvaskis, V., Vulcan, W. F., Walton, T., Wesselmann, F. R., Wood, S. A., Ye, Zhihong, and E06-009 Collaboration

Subjects
General Physics, Engineering, E06-009 Collaboration, Nuclear Theory, Physical Sciences, Nuclear Experiment, nucl-ex, nucleon nonsinglet moments, Mathematical Sciences
Abstract

We present extractions of the nucleon nonsinglet moments utilizing new precision data on the deuteron F_{2} structure function at large Bjorken-x determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new data are combined with a complementary set of data on the proton previously measured in Hall C at similar kinematics and world datasets on the proton and deuteron at lower x measured at SLAC and CERN. The new Jefferson Lab data provide coverage of the upper third of the x range, crucial for precision determination of the higher moments. In contrast to previous extractions, these moments have been corrected for nuclear effects in the deuteron using a new global fit to the deuteron and proton data. The obtained experimental moments represent an order of magnitude improvement in precision over previous extractions using high x data. Moreover, recent exciting developments in lattice QCD calculations provide a first ever comparison of these new experimental results with calculations of moments carried out at the physical pion mass, as well as a new approach that first calculates the quark distributions directly before determining moments.

Published
2019

19. Observation of the Λ7He Hypernucleus by the (e, e′K+) Reaction

Author

Nakamura, S. N., Matsumura, A., Okayasu, Y., Ševa, Tomislav, Rodriguez, V. M., Baturin, P., Yuan, L., Acha, A., Ahmidouch, A., Androić, Darko, Asaturyan, A., Asaturyan, R., Baker, O. K., Benmokhtar, F., Bosted, P., Carlini, R., Chen, C., Christy, M., Cole, L., Danagoulian, S., Daniel, A., Dharmawardane, V., Egiyan, K., Elaasar, M., Ent, R., Fenker, H., Fujii, Y., Furić, Miroslav, Gan, L., Gaskell, D., Gasparian, A., Gibson, E. F., Gogami, T., Gueye, P., Han, Y., Hashimoto, O., Hiyama, E., Honda, D., Horn, T., Hu, B., Hungerford, Ed V., Jayalath, C., Jones, M., Johnston, K., Kalantarians, N., Kanda, H., Kaneta, M., Kato, F., Kato, S., Kawama, D., Keppel, C., Lan, K. J., Luo, W., Mack, D., Maeda, K., Malace, S., Margaryan, A., Marikyan, G., Markowitz, P., Maruta, T., Maruyama, N., Miyoshi, T., Mkrtchyan, A., Mkrtchyan, H., Nagao, S., Navasardyan, T., Niculescu, G., Niculescu, M.-I., Nomura, H., Nonaka, K., Ohtani, A., Oyamada, M., Perez, N., Petković, Tomislav, Randeniya, S., Reinhold, J., Roche, J., Sato, Y., Segbefia, E. K., Šimičević, Neven, Smith, G., Song, Y., Sumihama, M., Tadevosyan, V., Takahashi, T., Tang, L., Tsukada, K., Tvaskis, V., Vulcan, W., Wells, S., Wood, S. A., Yan, C., and Zhamkochyan, S.

Subjects
PRIRODNE ZNANOSTI. Fizika, high-resolution kaon spectrometer, hypernucleus, hy, Nuclear Theory, high-resolution kaon spectrometer, hypernucleus, hypernuclear isotriplet, Nuclear Experiment, NATURAL SCIENCES. Physics
Abstract

An experiment with a newly developed high-resolution kaon spectrometer and a scattered electron spectrometer with a novel configuration was performed in Hall C at Jefferson Lab. The ground state of a neutron-rich hypernucleus, Λ7He, was observed for the first time with the (e, e′K+) reaction with an energy resolution of ∼0.6 MeV. This resolution is the best reported to date for hypernuclear reaction spectroscopy. The Λ7He binding energy supplies the last missing information of the A=7, T=1 hypernuclear isotriplet, providing a new input for the charge symmetry breaking effect of the ΛN potential.

Published
2013

20. Transverse momentum dependence of semi-inclusive pion production

Author

Mkrtchyan, H., Bosted, P.E., Adams, G.S., Ahmidouch, A., Angelescu, T., Arrington, J., Asaturyan, R., Baker, O.K., Benmouna, N., Bertoncini, C., Blok, H.P., Boeglin, W.U., Breuer, H., Christy, M.E., Connell, S.H., Cui, Y., Dalton, M.M., Danagoulian, S., Day, D., Dodario, T., Dunne, J.A., Dutta, D., El Khayari, N., Ent, R., Fenker, H.C., Frolov, V.V., Gan, L., Gaskell, D., Hafidi, K., Hinton, W., Holt, R.J., Horn, T., Huber, G.M., Hungerford, E., Jiang, X., Jones, M., Joo, K., Kalantarians, N., Kelly, J.J., Keppel, C.E., Kubarovsky, V., Li, Y., Liang, Y., Malace, S., Markowitz, P., McGrath, E., McKee, P., Meekins, D.G., Moziak, B., Navasardyan, T., Niculescu, G., Niculescu, I., Opper, A.K., Ostapenko, T., Reimer, P.E., Reinhold, J., Roche, J., Rock, S.E., Schulte, E., Segbefia, E., Smith, C., Smith, G.R., Stoler, P., Tadevosyan, V., Tang, L., Ungaro, M., Uzzle, A., Vidakovic, S., Villano, A., Vulcan, W.F., Wang, M., Warren, G., Wesselmann, F., Wojtsekhowski, B., Wood, S.A., Xu, C., Yuan, L., Zheng, X., and Zhu, H.

Published
2008
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21. New Measurements of High-Momentum Nucleons and Short-Range Structures in Nuclei

Author

Fomin, N., primary, Arrington, J., additional, Asaturyan, R., additional, Benmokhtar, F., additional, Boeglin, W., additional, Bosted, P., additional, Bruell, A., additional, Bukhari, M. H. S., additional, Christy, M. E., additional, Chudakov, E., additional, Clasie, B., additional, Connell, S. H., additional, Dalton, M. M., additional, Daniel, A., additional, Day, D. B., additional, Dutta, D., additional, Ent, R., additional, El Fassi, L., additional, Fenker, H., additional, Filippone, B. W., additional, Garrow, K., additional, Gaskell, D., additional, Hill, C., additional, Holt, R. J., additional, Horn, T., additional, Jones, M. K., additional, Jourdan, J., additional, Kalantarians, N., additional, Keppel, C. E., additional, Kiselev, D., additional, Kotulla, M., additional, Lindgren, R., additional, Lung, A. F., additional, Malace, S., additional, Markowitz, P., additional, McKee, P., additional, Meekins, D. G., additional, Mkrtchyan, H., additional, Navasardyan, T., additional, Niculescu, G., additional, Opper, A. K., additional, Perdrisat, C., additional, Potterveld, D. H., additional, Punjabi, V., additional, Qian, X., additional, Reimer, P. E., additional, Roche, J., additional, Rodriguez, V. M., additional, Rondon, O., additional, Schulte, E., additional, Seely, J., additional, Segbefia, E., additional, Slifer, K., additional, Smith, G. R., additional, Solvignon, P., additional, Tadevosyan, V., additional, Tajima, S., additional, Tang, L., additional, Testa, G., additional, Trojer, R., additional, Tvaskis, V., additional, Vulcan, W. F., additional, Wasko, C., additional, Wesselmann, F. R., additional, Wood, S. A., additional, Wright, J., additional, and Zheng, X., additional

Published
2012
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22. Semi-inclusive charged-pion electroproduction off protons and deuterons: Cross sections, ratios, and access to the quark-parton model at low energies

Author

Asaturyan, R., primary, Ent, R., additional, Mkrtchyan, H., additional, Navasardyan, T., additional, Tadevosyan, V., additional, Adams, G. S., additional, Ahmidouch, A., additional, Angelescu, T., additional, Arrington, J., additional, Asaturyan, A., additional, Baker, O. K., additional, Benmouna, N., additional, Bertoncini, C., additional, Blok, H. P., additional, Boeglin, W. U., additional, Bosted, P. E., additional, Breuer, H., additional, Christy, M. E., additional, Connell, S. H., additional, Cui, Y., additional, Dalton, M. M., additional, Danagoulian, S., additional, Day, D., additional, Dunne, J. A., additional, Dutta, D., additional, El Khayari, N., additional, Fenker, H. C., additional, Frolov, V. V., additional, Gan, L., additional, Gaskell, D., additional, Hafidi, K., additional, Hinton, W., additional, Holt, R. J., additional, Horn, T., additional, Huber, G. M., additional, Hungerford, E., additional, Jiang, X., additional, Jones, M., additional, Joo, K., additional, Kalantarians, N., additional, Kelly, J. J., additional, Keppel, C. E., additional, Kubarovsky, V., additional, Li, Y., additional, Liang, Y., additional, Mack, D., additional, Malace, S. P., additional, Markowitz, P., additional, McGrath, E., additional, McKee, P., additional, Meekins, D. G., additional, Mkrtchyan, A., additional, Moziak, B., additional, Niculescu, G., additional, Niculescu, I., additional, Opper, A. K., additional, Ostapenko, T., additional, Reimer, P. E., additional, Reinhold, J., additional, Roche, J., additional, Rock, S. E., additional, Schulte, E., additional, Segbefia, E., additional, Smith, C., additional, Smith, G. R., additional, Stoler, P., additional, Tang, L., additional, Ungaro, M., additional, Uzzle, A., additional, Vidakovic, S., additional, Villano, A., additional, Vulcan, W. F., additional, Wang, M., additional, Warren, G., additional, Wesselmann, F. R., additional, Wojtsekhowski, B., additional, Wood, S. A., additional, Xu, C., additional, Yuan, L., additional, and Zheng, X., additional

Published
2012
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23. Scaling of theF2Structure Function in Nuclei and Quark Distributions atx>1

Author

Fomin, N., primary, Arrington, J., additional, Day, D. B., additional, Gaskell, D., additional, Daniel, A., additional, Seely, J., additional, Asaturyan, R., additional, Benmokhtar, F., additional, Boeglin, W., additional, Boillat, B., additional, Bosted, P., additional, Bruell, A., additional, Bukhari, M. H. S., additional, Christy, M. E., additional, Chudakov, E., additional, Clasie, B., additional, Connell, S. H., additional, Dalton, M. M., additional, Dutta, D., additional, Ent, R., additional, El Fassi, L., additional, Fenker, H., additional, Filippone, B. W., additional, Garrow, K., additional, Hill, C., additional, Holt, R. J., additional, Horn, T., additional, Jones, M. K., additional, Jourdan, J., additional, Kalantarians, N., additional, Keppel, C. E., additional, Kiselev, D., additional, Kotulla, M., additional, Lindgren, R., additional, Lung, A. F., additional, Malace, S., additional, Markowitz, P., additional, McKee, P., additional, Meekins, D. G., additional, Miyoshi, T., additional, Mkrtchyan, H., additional, Navasardyan, T., additional, Niculescu, G., additional, Okayasu, Y., additional, Opper, A. K., additional, Perdrisat, C., additional, Potterveld, D. H., additional, Punjabi, V., additional, Qian, X., additional, Reimer, P. E., additional, Roche, J., additional, Rodriguez, V. M., additional, Rondon, O., additional, Schulte, E., additional, Segbefia, E., additional, Slifer, K., additional, Smith, G. R., additional, Solvignon, P., additional, Tadevosyan, V., additional, Tajima, S., additional, Tang, L., additional, Testa, G., additional, Trojer, R., additional, Tvaskis, V., additional, Vulcan, W. F., additional, Wasko, C., additional, Wesselmann, F. R., additional, Wood, S. A., additional, Wright, J., additional, and Zheng, X., additional

Published
2010
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24. Experimental study of theA(e,e′π+) reaction onH1,H2,C12,Al27,Cu63, andAu197

Author

Qian, X., primary, Horn, T., additional, Clasie, B., additional, Arrington, J., additional, Asaturyan, R., additional, Benmokhtar, F., additional, Boeglin, W., additional, Bosted, P., additional, Bruell, A., additional, Christy, M. E., additional, Chudakov, E., additional, Dalton, M. M., additional, Daniel, A., additional, Day, D., additional, Dutta, D., additional, El Fassi, L., additional, Ent, R., additional, Fenker, H. C., additional, Ferrer, J., additional, Fomin, N., additional, Gao, H., additional, Garrow, K., additional, Gaskell, D., additional, Gray, C., additional, Huber, G. M., additional, Jones, M. K., additional, Kalantarians, N., additional, Keppel, C. E., additional, Kramer, K., additional, Li, Y., additional, Liang, Y., additional, Lung, A. F., additional, Malace, S., additional, Markowitz, P., additional, Matsumura, A., additional, Meekins, D. G., additional, Mertens, T., additional, Miyoshi, T., additional, Mkrtchyan, H., additional, Monson, R., additional, Navasardyan, T., additional, Niculescu, G., additional, Niculescu, I., additional, Okayasu, Y., additional, Opper, A. K., additional, Perdrisat, C., additional, Punjabi, V., additional, Rauf, A. W., additional, Rodriquez, V. M., additional, Rohe, D., additional, Seely, J., additional, Segbefia, E., additional, Smith, G. R., additional, Sumihama, M., additional, Tadevosyan, V., additional, Tang, L., additional, Villano, A., additional, Vulcan, W. F., additional, Wesselmann, F. R., additional, Wood, S. A., additional, Yuan, L., additional, and Zheng, X., additional

Published
2010
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25. New Measurements of the European Muon Collaboration Effect in Very Light Nuclei

Author

Seely, J., primary, Daniel, A., additional, Gaskell, D., additional, Arrington, J., additional, Fomin, N., additional, Solvignon, P., additional, Asaturyan, R., additional, Benmokhtar, F., additional, Boeglin, W., additional, Boillat, B., additional, Bosted, P., additional, Bruell, A., additional, Bukhari, M. H. S., additional, Christy, M. E., additional, Clasie, B., additional, Connell, S., additional, Dalton, M. M., additional, Day, D., additional, Dunne, J., additional, Dutta, D., additional, El Fassi, L., additional, Ent, R., additional, Fenker, H., additional, Filippone, B. W., additional, Gao, H., additional, Hill, C., additional, Holt, R. J., additional, Horn, T., additional, Hungerford, E., additional, Jones, M. K., additional, Jourdan, J., additional, Kalantarians, N., additional, Keppel, C. E., additional, Kiselev, D., additional, Kotulla, M., additional, Lee, C., additional, Lung, A. F., additional, Malace, S., additional, Meekins, D. G., additional, Mertens, T., additional, Mkrtchyan, H., additional, Navasardyan, T., additional, Niculescu, G., additional, Niculescu, I., additional, Nomura, H., additional, Okayasu, Y., additional, Opper, A. K., additional, Perdrisat, C., additional, Potterveld, D. H., additional, Punjabi, V., additional, Qian, X., additional, Reimer, P. E., additional, Roche, J., additional, Rodriguez, V. M., additional, Rondon, O., additional, Schulte, E., additional, Segbefia, E., additional, Slifer, K., additional, Smith, G. R., additional, Tadevosyan, V., additional, Tajima, S., additional, Tang, L., additional, Testa, G., additional, Trojer, R., additional, Tvaskis, V., additional, Vulcan, W. F., additional, Wesselmann, F. R., additional, Wood, S. A., additional, Wright, J., additional, Yuan, L., additional, and Zheng, X., additional

Published
2009
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26. Applications of quark-hadron duality in theF2structure function

Author

Malace, S. P., primary, Adams, G. S., additional, Ahmidouch, A., additional, Angelescu, T., additional, Arrington, J., additional, Asaturyan, R., additional, Baker, O. K., additional, Benmouna, N., additional, Blok, H. P., additional, Boeglin, W. U., additional, Bosted, P. E., additional, Breuer, H., additional, Christy, M. E., additional, Cui, Y., additional, Dalton, M. M., additional, Danagoulian, S., additional, Day, D., additional, Dunne, J. A., additional, Dutta, D., additional, Ent, R., additional, Fenker, H. C., additional, Gan, L., additional, Gaskell, D., additional, Hafidi, K., additional, Hinton, W., additional, Holt, R. J., additional, Horn, T., additional, Huber, G. M., additional, Hungerford, E., additional, Jiang, X., additional, Jones, M., additional, Joo, K., additional, Kalantarians, N., additional, Kelly, J. J., additional, Keppel, C. E., additional, Kinney, E. R., additional, Kubarovsky, V., additional, Li, Y., additional, Liang, Y., additional, Markowitz, P., additional, McGrath, E., additional, McKee, P., additional, Meekins, D. G., additional, Mkrtchyan, H., additional, Navasardyan, T., additional, Niculescu, G., additional, Niculescu, I., additional, Reimer, P. E., additional, Reinhold, J., additional, Roche, J., additional, Schulte, E., additional, Segbefia, E., additional, Smith, C., additional, Smith, G. R., additional, Tadevosyan, V., additional, Tang, L., additional, Ungaro, M., additional, Uzzle, A., additional, Vidakovic, S., additional, Villano, A. N., additional, Vulcan, W. F., additional, Wesselmann, F. R., additional, Wojtsekhowski, B., additional, Wood, S. A., additional, Yuan, L., additional, and Zheng, X., additional

Published
2009
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27. Electroproduction ofηmesons in theS11(1535)resonance region at high momentum transfer

Author

Dalton, M. M., primary, Adams, G. S., additional, Ahmidouch, A., additional, Angelescu, T., additional, Arrington, J., additional, Asaturyan, R., additional, Baker, O. K., additional, Benmouna, N., additional, Bertoncini, C., additional, Boeglin, W. U., additional, Bosted, P. E., additional, Breuer, H., additional, Christy, M. E., additional, Connell, S. H., additional, Cui, Y., additional, Danagoulian, S., additional, Day, D., additional, Dodario, T., additional, Dunne, J. A., additional, Dutta, D., additional, Khayari, N. El, additional, Ent, R., additional, Fenker, H. C., additional, Frolov, V. V., additional, Gan, L., additional, Gaskell, D., additional, Hafidi, K., additional, Hinton, W., additional, Holt, R. J., additional, Horn, T., additional, Huber, G. M., additional, Hungerford, E., additional, Jiang, X., additional, Jones, M. K., additional, Joo, K., additional, Kalantarians, N., additional, Kelly, J. J., additional, Keppel, C. E., additional, Kubarovsky, V., additional, Li, Y., additional, Liang, Y., additional, Malace, S., additional, Markowitz, P., additional, McKee, P., additional, Meekins, D. G., additional, Mkrtchyan, H., additional, Moziak, B., additional, Navasardyan, T., additional, Niculescu, G., additional, Niculescu, I., additional, Opper, A. K., additional, Ostapenko, T., additional, Reimer, P. E., additional, Reinhold, J., additional, Roche, J., additional, Rock, S. E., additional, Schulte, E., additional, Segbefia, E., additional, Smith, C., additional, Smith, G. R., additional, Stoler, P., additional, Tadevosyan, V., additional, Tang, L., additional, Tvaskis, V., additional, Ungaro, M., additional, Uzzle, A., additional, Vidakovic, S., additional, Villano, A., additional, Vulcan, W. F., additional, Wang, M., additional, Warren, G., additional, Wesselmann, F. R., additional, Wojtsekhowski, B., additional, Wood, S. A., additional, Xu, C., additional, Yuan, L., additional, Zheng, X., additional, and Zhu, H., additional

Published
2009
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28. Scaling study of the pion electroproduction cross sections

Author

Horn, T., primary, Qian, X., additional, Arrington, J., additional, Asaturyan, R., additional, Benmokthar, F., additional, Boeglin, W., additional, Bosted, P., additional, Bruell, A., additional, Christy, M. E., additional, Chudakov, E., additional, Clasie, B., additional, Dalton, M. M., additional, Daniel, A., additional, Day, D., additional, Dutta, D., additional, El Fassi, L., additional, Ent, R., additional, Fenker, H., additional, Ferrer, J., additional, Fomin, N., additional, Gao, H., additional, Garrow, K., additional, Gaskell, D., additional, Gray, C., additional, Huber, G. M., additional, Jones, M. K., additional, Kalantarians, N., additional, Keppel, C. E., additional, Kramer, K., additional, Li, Y., additional, Liang, Y., additional, Lung, A. F., additional, Malace, S., additional, Markowitz, P., additional, Matsumura, A., additional, Meekins, D., additional, Mertens, T., additional, Miyoshi, T., additional, Mkrtchyan, H., additional, Monson, R., additional, Navasardyan, T., additional, Niculescu, G., additional, Niculescu, I., additional, Okayasu, Y., additional, Opper, A. K., additional, Perdrisat, C., additional, Punjabi, V., additional, Rauf, A. W., additional, Rodriguez, V., additional, Rohe, D., additional, Seely, J., additional, Segbefia, E., additional, Smith, G. R., additional, Sumihama, M., additional, Tadevosyan, V., additional, Tang, L. G., additional, Tvaskis, V., additional, Villano, A., additional, Vulcan, W., additional, Wesselmann, F. R., additional, Wood, S. A., additional, Yuan, L., additional, and Zheng, X. C., additional

Published
2008
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29. Measurement of Nuclear Transparency for theA(e,e′π+)Reaction

Author

Clasie, B., primary, Qian, X., additional, Arrington, J., additional, Asaturyan, R., additional, Benmokhtar, F., additional, Boeglin, W., additional, Bosted, P., additional, Bruell, A., additional, Christy, M. E., additional, Chudakov, E., additional, Cosyn, W., additional, Dalton, M. M., additional, Daniel, A., additional, Day, D., additional, Dutta, D., additional, El Fassi, L., additional, Ent, R., additional, Fenker, H. C., additional, Ferrer, J., additional, Fomin, N., additional, Gao, H., additional, Garrow, K., additional, Gaskell, D., additional, Gray, C., additional, Horn, T., additional, Huber, G. M., additional, Jones, M. K., additional, Kalantarians, N., additional, Keppel, C. E., additional, Kramer, K., additional, Larson, A., additional, Li, Y., additional, Liang, Y., additional, Lung, A. F., additional, Malace, S., additional, Markowitz, P., additional, Matsumura, A., additional, Meekins, D. G., additional, Mertens, T., additional, Miller, G. A., additional, Miyoshi, T., additional, Mkrtchyan, H., additional, Monson, R., additional, Navasardyan, T., additional, Niculescu, G., additional, Niculescu, I., additional, Okayasu, Y., additional, Opper, A. K., additional, Perdrisat, C., additional, Punjabi, V., additional, Rauf, A. W., additional, Rodriquez, V. M., additional, Rohe, D., additional, Ryckebusch, J., additional, Seely, J., additional, Segbefia, E., additional, Smith, G. R., additional, Strikman, M., additional, Sumihama, M., additional, Tadevosyan, V., additional, Tang, L., additional, Tvaskis, V., additional, Villano, A., additional, Vulcan, W. F., additional, Wesselmann, F. R., additional, Wood, S. A., additional, Yuan, L., additional, and Zheng, X. C., additional

Published
2007
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30. Onset of Quark-Hadron Duality in Pion Electroproduction

Author

Navasardyan, T., primary, Adams, G. S., additional, Ahmidouch, A., additional, Angelescu, T., additional, Arrington, J., additional, Asaturyan, R., additional, Baker, O. K., additional, Benmouna, N., additional, Bertoncini, C., additional, Blok, H. P., additional, Boeglin, W. U., additional, Bosted, P. E., additional, Breuer, H., additional, Christy, M. E., additional, Connell, S. H., additional, Cui, Y., additional, Dalton, M. M., additional, Danagoulian, S., additional, Day, D., additional, Dodario, T., additional, Dunne, J. A., additional, Dutta, D., additional, El Khayari, N., additional, Ent, R., additional, Fenker, H. C., additional, Frolov, V. V., additional, Gan, L., additional, Gaskell, D., additional, Hafidi, K., additional, Hinton, W., additional, Holt, R. J., additional, Horn, T., additional, Huber, G. M., additional, Hungerford, E., additional, Jiang, X., additional, Jones, M., additional, Joo, K., additional, Kalantarians, N., additional, Kelly, J. J., additional, Keppel, C. E., additional, Kubarovski, V., additional, Li, Y., additional, Liang, Y., additional, Malace, S., additional, Markowitz, P., additional, McGrath, E., additional, McKee, P., additional, Meekins, D. G., additional, Mkrtchyan, H., additional, Moziak, B., additional, Niculescu, G., additional, Niculescu, I., additional, Opper, A. K., additional, Ostapenko, T., additional, Reimer, P., additional, Reinhold, J., additional, Roche, J., additional, Rock, S. E., additional, Schulte, E., additional, Segbefia, E., additional, Smith, C., additional, Smith, G. R., additional, Stoler, P., additional, Tadevosyan, V., additional, Tang, L., additional, Ungaro, M., additional, Uzzle, A., additional, Vidakovic, S., additional, Villano, A., additional, Vulcan, W. F., additional, Wang, M., additional, Warren, G., additional, Wesselmann, F., additional, Wojtsekhowski, B., additional, Wood, S. A., additional, Xu, C., additional, Yuan, L., additional, Zheng, X., additional, and Zhu, H., additional

Published
2007
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31. Nuclear transparency from quasielasticC12(e,e'p)

Author

Rohe, D., primary, Benhar, O., additional, Armstrong, C. S., additional, Asaturyan, R., additional, Baker, O. K., additional, Bueltmann, S., additional, Carasco, C., additional, Day, D., additional, Ent, R., additional, Fenker, H. C., additional, Garrow, K., additional, Gasparian, A., additional, Gueye, P., additional, Hauger, M., additional, Honegger, A., additional, Jourdan, J., additional, Keppel, C. E., additional, Kubon, G., additional, Lindgren, R., additional, Lung, A., additional, Mack, D. J., additional, Mitchell, J. H., additional, Mkrtchyan, H., additional, Mocelj, D., additional, Normand, K., additional, Petitjean, T., additional, Rondon, O., additional, Segbefia, E., additional, Sick, I., additional, Stepanyan, S., additional, Tang, L., additional, Tiefenbacher, F., additional, Vulcan, W. F., additional, Warren, G., additional, Wood, S. A., additional, Yuan, L., additional, Zeier, M., additional, Zhu, H., additional, and Zihlmann, B., additional

Published
2005
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32. Correlated Strength in the Nuclear Spectral Function

Author

Rohe, D., primary, Armstrong, C. S., additional, Asaturyan, R., additional, Baker, O. K., additional, Bueltmann, S., additional, Carasco, C., additional, Day, D., additional, Ent, R., additional, Fenker, H. C., additional, Garrow, K., additional, Gasparian, A., additional, Gueye, P., additional, Hauger, M., additional, Honegger, A., additional, Jourdan, J., additional, Keppel, C. E., additional, Kubon, G., additional, Lindgren, R., additional, Lung, A., additional, Mack, D. J., additional, Mitchell, J. H., additional, Mkrtchyan, H., additional, Mocelj, D., additional, Normand, K., additional, Petitjean, T., additional, Rondon, O., additional, Segbefia, E., additional, Sick, I., additional, Stepanyan, S., additional, Tang, L., additional, Tiefenbacher, F., additional, Vulcan, W. F., additional, Warren, G., additional, Wood, S. A., additional, Yuan, L., additional, Zeier, M., additional, Zhu, H., additional, and Zihlmann, B., additional

Published
2004
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33. Measurements of electron-proton elastic cross sections for0.4<Q2<5.5(GeV∕c)2

Author

Christy, M. E., primary, Ahmidouch, A., additional, Armstrong, C. S., additional, Arrington, J., additional, Asaturyan, R., additional, Avery, S., additional, Baker, O. K., additional, Beck, D. H., additional, Blok, H. P., additional, Bochna, C. W., additional, Boeglin, W., additional, Bosted, P., additional, Bouwhuis, M., additional, Breuer, H., additional, Brown, D. S., additional, Bruell, A., additional, Carlini, R. D., additional, Chant, N. S., additional, Cochran, A., additional, Cole, L., additional, Danagoulian, S., additional, Day, D. B., additional, Dunne, J., additional, Dutta, D., additional, Ent, R., additional, Fenker, H. C., additional, Fox, B., additional, Gan, L., additional, Gao, H., additional, Garrow, K., additional, Gaskell, D., additional, Gasparian, A., additional, Geesaman, D. F., additional, Guèye, P. L. J., additional, Harvey, M., additional, Holt, R. J., additional, Jiang, X., additional, Keppel, C. E., additional, Kinney, E., additional, Liang, Y., additional, Lorenzon, W., additional, Lung, A., additional, Markowitz, P., additional, Martin, J. W., additional, McIlhany, K., additional, McKee, D., additional, Meekins, D., additional, Miller, M. A., additional, Milner, R. G., additional, Mitchell, J. H., additional, Mkrtchyan, H., additional, Mueller, B. A., additional, Nathan, A., additional, Niculescu, G., additional, Niculescu, I., additional, O’Neill, T. G., additional, Papavassiliou, V., additional, Pate, S. F., additional, Piercey, R. B., additional, Potterveld, D., additional, Ransome, R. D., additional, Reinhold, J., additional, Rollinde, E., additional, Roos, P., additional, Sarty, A. J., additional, Sawafta, R., additional, Schulte, E. C., additional, Segbefia, E., additional, Smith, C., additional, Stepanyan, S., additional, Strauch, S., additional, Tadevosyan, V., additional, Tang, L., additional, Tieulent, R., additional, Uzzle, A., additional, Vulcan, W. F., additional, Wood, S. A., additional, Xiong, F., additional, Yuan, L., additional, Zeier, M., additional, Zihlmann, B., additional, and Ziskin, V., additional

Published
2004
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34. Nuclear transparency from quasielasticA(e,e′p)reactions up toQ2=8.1(GeV/c)2

Author

Garrow, K., primary, McKee, D., additional, Ahmidouch, A., additional, Armstrong, C. S., additional, Arrington, J., additional, Asaturyan, R., additional, Avery, S., additional, Baker, O. K., additional, Beck, D. H., additional, Blok, H. P., additional, Bochna, C. W., additional, Boeglin, W., additional, Bosted, P., additional, Bouwhuis, M., additional, Breuer, H., additional, Brown, D. S., additional, Bruell, A., additional, Carlini, R. D., additional, Chant, N. S., additional, Cochran, A., additional, Cole, L., additional, Danagoulian, S., additional, Day, D. B., additional, Dunne, J., additional, Dutta, D., additional, Ent, R., additional, Fenker, H. C., additional, Fox, B., additional, Gan, L., additional, Gaskell, D., additional, Gasparian, A., additional, Gao, H., additional, Geesaman, D. F., additional, Gilman, R., additional, Guèye, P. L. J., additional, Harvey, M., additional, Holt, R. J., additional, Jiang, X., additional, Keppel, C. E., additional, Kinney, E., additional, Liang, Y., additional, Lorenzon, W., additional, Lung, A., additional, Mack, D. J., additional, Markowitz, P., additional, Martin, J. W., additional, McIlhany, K., additional, Meekins, D., additional, Miller, M. A., additional, Milner, R. G., additional, Mitchell, J. H., additional, Mkrtchyan, H., additional, Mueller, B. A., additional, Nathan, A., additional, Niculescu, G., additional, Niculescu, I., additional, O’Neill, T. G., additional, Papavassiliou, V., additional, Pate, S., additional, Piercey, R. B., additional, Potterveld, D., additional, Ransome, R. D., additional, Reinhold, J., additional, Rollinde, E., additional, Roos, P., additional, Sarty, A. J., additional, Sawafta, R., additional, Schulte, E. C., additional, Segbefia, E., additional, Smith, C., additional, Stepanyan, S., additional, Strauch, S., additional, Tadevosyan, V., additional, Tang, L., additional, Tieulent, R., additional, Uzzle, A., additional, Vulcan, W. F., additional, Wood, S. A., additional, Xiong, F., additional, Yuan, L., additional, Zeier, M., additional, Zihlmann, B., additional, and Ziskin, V., additional

Published
2002
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35. Measurement of the High Energy Two-Body Deuteron Photodisintegration Differential Cross Section

Author

Schulte, E. C., primary, Ahmidouch, A., additional, Armstrong, C. S., additional, Arrington, J., additional, Asaturyan, R., additional, Avery, S., additional, Baker, O. K., additional, Beck, D. H., additional, Blok, H. P., additional, Bochna, C. W., additional, Boeglin, W., additional, Bosted, P. Y., additional, Bouwhuis, M., additional, Breuer, H., additional, Brown, D. S., additional, Bruell, A., additional, Cadman, R. V., additional, Carlini, R., additional, Chant, N. S., additional, Cochran, A., additional, Cole, L., additional, Danagoulian, S., additional, Day, D. B., additional, Dunne, J. A., additional, Dutta, D., additional, Ent, R., additional, Fenker, H. C., additional, Fox, B., additional, Gan, L., additional, Gao, H., additional, Garrow, K., additional, Gaskell, D., additional, Gasparian, A., additional, Geesaman, D. F., additional, Gilman, R., additional, Glashausser, C., additional, Gueye, P., additional, Harvey, M., additional, Holt, R. J., additional, Jackson, H. E., additional, Jiang, X., additional, Keppel, C. E., additional, Kinney, E. R., additional, Liang, Y., additional, Lorenzon, W., additional, Lung, A. F., additional, Mack, D. J., additional, Markowitz, P. E., additional, Martin, J., additional, McIlhany, K., additional, McKee, D., additional, Meekins, D. G., additional, Miller, M. A., additional, Milner, R. G., additional, Mitchell, J. H., additional, Mkrtchyan, H., additional, Mueller, B. A., additional, Nathan, A. M., additional, Niculescu, G., additional, Niculescu, I., additional, O'Neill, T. G., additional, Papavassiliou, V., additional, Pate, S. F., additional, Piercey, R. B., additional, Potterveld, D. H., additional, Ransome, R. D., additional, Reinhold, J., additional, Rollinde, E., additional, Roos, P., additional, Saha, A., additional, Sarty, A. J., additional, Sawafta, R., additional, Segbefia, E., additional, Shin, T., additional, Stepanyan, S., additional, Strauch, S., additional, Sutter, M. F., additional, Tadevosyan, V., additional, Tang, L., additional, Tieulent, R., additional, Uzzle, A., additional, Vulcan, W. F., additional, Wood, S. A., additional, Xiong, F., additional, Yuan, L., additional, Zeier, M., additional, Zihlmann, B., additional, and Ziskin, V., additional

Published
2001
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36. Final 3-Year Study Outcomes from the Evaluation of the Zilver Vena Venous Stent for the Treatment of Symptomatic Iliofemoral Venous Outflow Obstruction (The VIVO Clinical Study).

Author

Comerota AJ, Gagne P, Brown JA, Segbefia E, and Hofmann LV

Subjects
Humans, Female, Male, Middle Aged, Treatment Outcome, Prospective Studies, Time Factors, Aged, Adult, Venous Thrombosis therapy, Venous Thrombosis physiopathology, Venous Thrombosis diagnostic imaging, United States, Quality of Life, Disability Evaluation, Stents, Iliac Vein diagnostic imaging, Iliac Vein physiopathology, Femoral Vein diagnostic imaging, Femoral Vein physiopathology, Vascular Patency, Prosthesis Design, Endovascular Procedures instrumentation, Endovascular Procedures adverse effects, Postthrombotic Syndrome physiopathology, Postthrombotic Syndrome therapy, Postthrombotic Syndrome diagnostic imaging, Postthrombotic Syndrome etiology
Abstract

Purpose: To report 3-year outcomes from a prospective, multicenter, nonrandomized, single-arm study designed to assess the safety and effectiveness of the Zilver Vena Venous Stent for the treatment of symptomatic iliofemoral venous outflow obstruction., Materials and Methods: The VIVO study included patients with symptomatic obstruction of 1 iliofemoral venous segment (ie, 1 limb), characterized by a Clinical, Etiological, Anatomic, Pathophysiology (CEAP) clinical classification of ≥3 or a Venous Clinical Severity Score (VCSS) for pain of ≥2. Patients were retrospectively grouped based on baseline clinical presentation as postthrombotic syndrome (PTS), nonthrombotic iliac vein (NIVL) obstruction, or acute deep vein thrombosis (aDVT). Clinical improvement was assessed by change in VCSS, Venous Disability Score, Chronic Venous Disease Quality of Life Questionnaire (CIVIQ-20) scores, and CEAP C classification. Stent performance was evaluated by rates of patency by ultrasound (US), freedom from clinically driven reintervention, and freedom from stent fracture., Results: The 3-year results for the 243 patients in the VIVO cohort included a 90.3% rate of patency by US and a 92.6% rate of freedom from clinically driven reintervention. The 3-year rates of patency by US for the NIVL, aDVT, and PTS groups were 100%, 84.0%, and 86.1%, respectively. Sustained clinical improvement through 3 years was demonstrated by changes in VCSS, Venous Disability Score, CIVIQ-20, and CEAP C classification. No stent fractures were observed., Conclusions: The VIVO study demonstrated sustained high rates of patency and freedom from clinically driven reintervention and improvements in venous clinical symptoms through 3 years. Each patient group (NIVL, aDVT, and PTS) showed clinical improvement and sustained patency through 3 years; some variation existed among groups (eg, only the NIVL group had a 100% patency rate)., (Copyright © 2024 SIR. Published by Elsevier Inc. All rights reserved.)

Published
2024
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37. A step towards food security: The effect of carbon emission and the moderating influence of human capital. Evidence from Anglophone countries.

Author

Segbefia E, Dai B, Adotey P, and Sampene AK

Abstract

This study evaluated the influence of carbon emission, population growth, economic growth and human capital on food security (FOS) among five selected African nations (Nigeria, Ghana, Kenya, Zimbabwe, and Tanzania) by analyzing panel data from 1990 to 2021. Moreover, the study evaluated the moderation effect of human capital on the connection between carbon emission and food security. The study's initial findings confirm that the countries selected were interdependent, and the models' parameters were stationary and co-integrated. The empirical analysis from the cross-sectionally augmented autoregressive distributed lag (CS-ARDL) indicated that (1) carbon emission and population growth have an inverse connection with FOS. (2) In contrast, the results revealed that human capital and economic growth improve FOS. (3) The study outcome proved that human capital moderates the interplay between carbon emission and food security. This result means that the association between carbon emission and food security can be enhanced through the iterative role of human capital. (4) The causality analysis revealed a unidirectional connection between economic growth, population growth, human capital and food security. (5) A bidirectional causality exists between carbon emission and food security. The current analysis enriches literature studies on FOS and environment nexus by providing new insight from the five selected African countries. The study proposes an investment into human capital by African countries because it can complement and solidify the interaction between carbon emissions and food security., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2023 Published by Elsevier Ltd.)

Published
2023
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38. Renewable energy, technological innovation, carbon emission, and life expectancy nexus: experience from the NAFTA economies.

Author

Segbefia E, Dai B, Adotey P, Sampene AK, Amoako T, and Lamptey C

Subjects
Humans, Cross-Sectional Studies, Carbon Dioxide, Renewable Energy, Economic Development, Inventions, Carbon
Abstract

One essential component that reflects the development of society and the economy of most countries is life expectancy (LEXP). Nevertheless, LEXP can be influenced by varying factors, including socioeconomic and medical factors. Therefore, this analysis's focal point and motivation is to explore how socioeconomic factors such as economic growth, technological innovation, carbon emission, human capital, and renewable energy affect LEXP. The study utilized panel data from 1990 to 2020 from the North American Free Trade Agreement (NAFTA), which consists of the USA, Mexico, and Canada. The initial test confirmed that the research series were stationary and cointegrated. Therefore, the research applied the cross-sectional autoregressive distributed lag (CS-ARDL) model to predict the paper's short- and long-term estimates. The empirical estimated model concluded that human capital, renewable energy, technological innovation, and economic growth boost life expectancy. Contrarily, the outcome espoused that carbon emission has an inverse association with LEXP. The causality test confirmed a unidirectional interaction between human capital, economic growth, technological innovation, and life expectancy. On the other hand, there is a bidirectional connection between carbon emission, renewable energy, and life expectancy. The research suggests that stakeholders and policy-makers strengthen and enforce air quality standards to reduce pollution from industrial emissions and vehicle exhaust and encourage using cleaner technologies to promote LEXP. The research outcome is empirically and theoretically consistent, providing an essential breakthrough for environment-health-energy and economic development policies., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)

Published
2023
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39. Five-year results of the STABLE II study for the endovascular treatment of complicated, acute type B aortic dissection with a composite device design.

Author

Lombardi JV, Gleason TG, Panneton JM, Starnes BW, Dake MD, Haulon S, Mossop PJ, Segbefia E, and Bharadwaj P

Subjects
Humans, Male, Middle Aged, Aged, Female, Blood Vessel Prosthesis, Prospective Studies, Prosthesis Design, Time Factors, Stents, Treatment Outcome, Blood Vessel Prosthesis Implantation, Endovascular Procedures, Aortic Dissection diagnostic imaging, Aortic Dissection surgery, Aortic Dissection complications, Thrombosis etiology, Aortic Aneurysm, Thoracic diagnostic imaging, Aortic Aneurysm, Thoracic surgery, Aortic Aneurysm, Thoracic complications
Abstract

Objective: To provide the 5-year outcomes of the use of a composite device (proximal covered stent graft + distal bare stent) for endovascular repair of patients with acute, type B aortic dissection complicated by aortic rupture and/or malperfusion., Methods: Study of Thoracic Aortic Type B Dissection Using Endoluminal Repair (STABLE) II was a prospective, multicenter study of the Zenith Dissection Endovascular System (William Cook Europe). Patients were enrolled between August 2012 and January 2015 at sites in the United States and Japan. Five-year follow-up was completed by January 2020., Results: In total, 73 patients (mean age: 60.7 ± 10.9 years; 65.8% male) with acute type B dissection complicated by malperfusion (72.6%), rupture (21.9%), or both (5.5%) were enrolled. Patients were treated with either a composite device (79.5%) or the proximal stent graft alone (no distal bare stent, 20.5%). Dissections were more extensive in patients who received the composite device (408.9 ± 121.3 mm) than in patients who did not receive a bare stent (315.9 ± 100.1 mm). The mean follow-up was 1209.4 ± 754.6 days. Freedom from all-cause mortality was 80.3% ± 4.7% at 1 year and 68.9% ± 7.3% at 5 years. Freedom from dissection-related mortality remained at 97.1% ± 2.1% from 1-year through 5-year follow-up. Within the stent-graft region, the rate of either complete thrombosis or elimination of the false lumen increased over time (82.1% of all patients at 5 years vs 55.7% at first postprocedure computed tomography), with a higher rate at 5 years in patients who received the composite device (90.5%) compared with patients without the bare stent (57.1%). Throughout the follow-up, overall true lumen diameter increased within the stent-graft region, and overall false lumen diameter decreased. At 5 years, 20.7% of patients experienced a decrease in maximum transaortic diameter within the stent-graft region, 17.2% experienced an increase, and 62.1% experienced no change. Distal to the treated segment (but within the dissected aorta), 23.1% of patients experience no change in transaortic diameter at 5 years; a bare stent was deployed in all these patients at the procedure. Five-year freedom from all secondary intervention was 70.7% ± 7.2%., Conclusions: These 5-year outcomes indicate a low rate of dissection-related mortality for the Zenith Dissection Endovascular System in the treatment of patients with acute, complicated type B aortic dissection. Further, these data suggest a positive influence of composite device use on false lumen thrombosis. Continuous monitoring for distal aortic growth is necessary in all patients., (Copyright © 2022 Society for Vascular Surgery. Published by Elsevier Inc. All rights reserved.)

Published
2022
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40. Observation of the (Λ)(7)He hypernucleus by the (e, e'K+) reaction.

Author

Nakamura SN, Matsumura A, Okayasu Y, Seva T, Rodriguez VM, Baturin P, Yuan L, Acha A, Ahmidouch A, Androic D, Asaturyan A, Asaturyan R, Baker OK, Benmokhtar F, Bosted P, Carlini R, Chen C, Christy M, Cole L, Danagoulian S, Daniel A, Dharmawardane V, Egiyan K, Elaasar M, Ent R, Fenker H, Fujii Y, Furic M, Gan L, Gaskell D, Gasparian A, Gibson EF, Gogami T, Gueye P, Han Y, Hashimoto O, Hiyama E, Honda D, Horn T, Hu B, Hungerford EV, Jayalath C, Jones M, Johnston K, Kalantarians N, Kanda H, Kaneta M, Kato F, Kato S, Kawama D, Keppel C, Lan KJ, Luo W, Mack D, Maeda K, Malace S, Margaryan A, Marikyan G, Markowitz P, Maruta T, Maruyama N, Miyoshi T, Mkrtchyan A, Mkrtchyan H, Nagao S, Navasardyan T, Niculescu G, Niculescu MI, Nomura H, Nonaka K, Ohtani A, Oyamada M, Perez N, Petkovic T, Randeniya S, Reinhold J, Roche J, Sato Y, Segbefia EK, Simicevic N, Smith G, Song Y, Sumihama M, Tadevosyan V, Takahashi T, Tang L, Tsukada K, Tvaskis V, Vulcan W, Wells S, Wood SA, Yan C, and Zhamkochyan S

Abstract

An experiment with a newly developed high-resolution kaon spectrometer and a scattered electron spectrometer with a novel configuration was performed in Hall C at Jefferson Lab. The ground state of a neutron-rich hypernucleus, (Λ)(7)He, was observed for the first time with the (e, e'K+) reaction with an energy resolution of ~0.6 MeV. This resolution is the best reported to date for hypernuclear reaction spectroscopy. The (Λ)(7)He binding energy supplies the last missing information of the A = 7, T = 1 hypernuclear isotriplet, providing a new input for the charge symmetry breaking effect of the ΛN potential.

Published
2013
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