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152. Analyzing power for proton elastic scattering from the neutron-richHe6nucleus

Author

Uesaka, T., primary, Sakaguchi, S., additional, Iseri, Y., additional, Amos, K., additional, Aoi, N., additional, Hashimoto, Y., additional, Hiyama, E., additional, Ichikawa, M., additional, Ichikawa, Y., additional, Ishikawa, S., additional, Itoh, K., additional, Itoh, M., additional, Iwasaki, H., additional, Karataglidis, S., additional, Kawabata, T., additional, Kawahara, T., additional, Kuboki, H., additional, Maeda, Y., additional, Matsuo, R., additional, Nakao, T., additional, Okamura, H., additional, Sakai, H., additional, Sasamoto, Y., additional, Sasano, M., additional, Satou, Y., additional, Sekiguchi, K., additional, Shinohara, M., additional, Suda, K., additional, Suzuki, D., additional, Takahashi, Y., additional, Tanifuji, M., additional, Tamii, A., additional, Wakui, T., additional, Yako, K., additional, Yamamoto, Y., additional, and Yamaguchi, M., additional

Published
2010
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154. Hypernuclear Spectroscopy at JLab Hall C

Author

Hashimoto, O., primary, Chiba, A., additional, Doi, D., additional, Fujii, Y., additional, Gogami, T., additional, Kanda, H., additional, Kaneta, M., additional, Kawama, D., additional, Maeda, K., additional, Maruta, T., additional, Matsumura, A., additional, Nagao, S., additional, Nakamura, S.N., additional, Shichijo, A., additional, Tamura, H., additional, Taniya, N., additional, Yamamoto, T., additional, Yokota, K., additional, Kato, S., additional, Sato, Y., additional, Takahashi, T., additional, Noumi, H., additional, Motoba, T., additional, Hiyama, E., additional, Albayrak, I., additional, Ates, O., additional, Chen, C., additional, Christy, M., additional, Keppel, C., additional, Kohl, M., additional, Li, Y., additional, Liyanage, A., additional, Tang, L., additional, Walton, T., additional, Ye, Z., additional, Yuan, L., additional, Zhu, L., additional, Baturin, P., additional, Boeglin, W., additional, Dhamija, S., additional, Markowitz, P., additional, Raue, B., additional, Reinhold, J., additional, Hungerford, Ed.V., additional, Ent, R., additional, Fenker, H., additional, Gaskell, D., additional, Horn, T., additional, Jones, M., additional, Smith, G., additional, Vulcan, W., additional, Wood, S.A., additional, Johnston, C., additional, Simicevic, N., additional, Wells, S., additional, Samanta, C., additional, Hu, B., additional, Shen, J., additional, Wang, W., additional, Zhang, X., additional, Zhang, Y., additional, Feng, J., additional, Fu, Y., additional, Zhou, J., additional, Zhou, S., additional, Jiang, Y., additional, Lu, H., additional, Yan, X., additional, Ye, Y., additional, Gan, L., additional, Ahmidouch, A., additional, Danagoulian, S., additional, Gasparian, A., additional, Elaasar, M., additional, Wesselmann, F.R., additional, Asaturyan, A., additional, Margaryan, A., additional, Mkrtchyan, A., additional, Mkrtchyan, H., additional, Tadevosyan, V., additional, Androic, D., additional, Furic, M., additional, Petkovic, T., additional, Seva, T., additional, Niculescu, G., additional, Niculescu, I., additional, Rodriguez, V.M., additional, Cisbani, E., additional, Cusanno, F., additional, Garibaldi, F., additional, Uuciuoli, G.M., additional, De Leo, R., additional, Maronne, S., additional, Achenback, P., additional, and Pochodzala, J., additional

Published
2010
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158. Analyzing power in elastic scattering of ^<6>He from a polarized proton target at 71 MeV/nucleon

Author

Sakaguchi, S., Iseri, Y., Uesaka, T., Tanifuji, M., Amos, K., Aoi, N., Hashimoto, Y., Hiyama, E., Ichikawa, M., Ichikawa, Y., Ishikawa, S., Itoh, K., Itoh, M., Iwasaki, H., Karataglidis, S., Kawabata, T., Kawahara, T., Kuboki, H., Maeda, Y., Matsuo, R., Nakao, T., Okamura, H., Sakai, H., Sasamoto, Y., Sasano, M., Satou, Y., Sekiguchi, K., Shinohara, M., Suda, K., Suzuki, D., Takahashi, Y., Tamii, A., Wakui, T., Yako, K., Yamaguchi, M., and Yamamoto, Y.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The vector analyzing power has been measured for the elastic scattering of neutron-rich ^He from polarized protons at 71 MeV/nucleon making use of a newly constructed solid polarized proton target operated in a low magnetic field and at high temperature. Two approaches based on local one-body potentials were applied to investigate the spin-orbit interaction between a proton and a ^He nucleus. An optical model analysis revealed that the spin-orbit potential for ^ He is characterized by a shallow and long-ranged shape compared with the global systematics of stable nuclei. A semimicroscopic analysis with an α+n+n cluster folding model suggests that the interaction between a proton and the α core is essentially important in describing the p+^He elastic scattering. The data are also compared with fully microscopic analyses using nonlocal optical potentials based on nucleon-nucleon g matrices.

Published
2011

161. HYPERNUCLEAR SPECTROSCOPY WITH ELECTRON BEAM AT JLab HALL C

Author

Fujii, Y., primary, Chiba, A., additional, Doi, D., additional, Gogami, T., additional, Hashimoto, O., additional, Kanda, H., additional, Kaneta, M., additional, Kawama, D., additional, Maeda, K., additional, Maruta, T., additional, Matsumura, A., additional, Nagao, S., additional, Nakamura, S. N., additional, Shichijo, A., additional, Tamura, H., additional, Taniya, N., additional, Yamamoto, T., additional, Yokota, K., additional, Kato, S., additional, Sato, Y., additional, Takahashi, T., additional, Noumi, H., additional, Motoba, T., additional, Hiyama, E., additional, Albayrak, I., additional, Ates, O., additional, Chen, C., additional, Christy, M., additional, Keppel, C., additional, Kohl, M., additional, Li, Y., additional, Liyanage, A., additional, Tang, L., additional, Walton, T., additional, Ye, Z., additional, Yuan, L., additional, Zhu, L., additional, Baturin, P., additional, Boeglin, W., additional, Dhamija, S., additional, Markowitz, P., additional, Raue, B., additional, Reinhold, J., additional, Hungerford, Ed. V., additional, Ent, R., additional, Fenker, H., additional, Gaskell, D., additional, Horn, T., additional, Jones, M., additional, Smith, G., additional, Vulcan, W., additional, Wood, S. A., additional, Johnston, C., additional, Simicevic, N., additional, Wells, S., additional, Samanta, C., additional, Hu, B., additional, Shen, J., additional, Wang, W., additional, Zhang, X., additional, Zhang, Y., additional, Feng, J., additional, Fu, Y., additional, Zhou, J., additional, Zhou, S., additional, Jiang, Y., additional, Lu, H., additional, Yan, X., additional, Ye, Y., additional, Gan, L., additional, Ahmidouch, A., additional, Danagoulian, S., additional, Gasparian, A., additional, Elaasar, M., additional, Wesselmann, F. R., additional, Asaturyan, A., additional, Margaryan, A., additional, Mkrtchyan, A., additional, Mkrtchyan, H., additional, Tadevosyan, V., additional, Androic, D., additional, Furic, M., additional, Petkovic, T., additional, Seva, T., additional, Niculescu, G., additional, Niculescu, I., additional, López, V. M. Rodríguez, additional, Cisbani, E., additional, Cusanno, F., additional, Garibaldi, F., additional, Uuciuoli, G. M., additional, De Leo, R., additional, and Maronne, S., additional

Published
2009
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165. GAMOW–TELLER STRENGTH IN THE A = 4 SYSTEM

Author

TAMII, A., primary, ADACHI, T., additional, FUJITA, H., additional, FUJITA, Y., additional, HATANAKA, K., additional, HIYAMA, E., additional, ISHIKAWA, D., additional, KAWABATA, T., additional, KHAI, N. T., additional, MATSUBARA, H., additional, MYO, T., additional, OGAWA, Y., additional, OKAMURA, H., additional, OO, Y. Y., additional, SAKAGUCHI, H., additional, SHIMBARA, Y., additional, SUDA, K., additional, TOKI, H., additional, and YOSOI, M., additional

Published
2009
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172. Resonant states of the neutron-rich Λ hypernucleus 7Λ He.

Author

Hiyama, E., Isaka, M., Kamimura, M., Myo, T., and Motoba, T.

Subjects
*RESONANT states, *NEUTRONS, *MANY-body problem, *NUCLEAR cross sections, *PARTICLE decays
Abstract

The structure of the neutron-rich Λ hypernucleus, 7ΛHe is studied within the framework of an α+Λ+n+n four-body cluster model. We predict second 3/2+ and 5/2+ states, corresponding to a 0s Λ coupled to the second 2+ state of 6He, as narrow resonant states with widths of T~1 MeV to be at 0.03 and 0.07 MeV with respect to the α+Λ+n+n threshold. From a separate estimate of the differential cross section for the 7Li(γ,K+)7ΛHe reaction, we suggest a possibility to observe these states at the Thomas Jefferson National Accelerator Facility (JLab) in the future. We also calculate the second 2+ state of 6He as a resonant state within the framework of an α+n+n three-body cluster model. Our result is 2.81 MeV with G=4.63 MeV with respect to the α+n+n threshold. This energy position is ~1 MeV higher, and with a much broader decay width, than the recent SPIRAL data. We suggest that an experiment at JLab to search for the second 3/2+ and 5/2+ states of 7ΛHe would provide an opportunity to confirm the second 2+ state of the core nucleus 6He. [ABSTRACT FROM AUTHOR]

Published
2015
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180. γ-ray spectroscopy in Λ hypernuclei

Author

Tamura, H., primary, Ajimura, S., additional, Akikawa, H., additional, Alburger, D.E., additional, Aoki, K., additional, Banu, A., additional, Chrien, R.E., additional, Franklin, G.B., additional, Franz, J., additional, Fujii, Y., additional, Fukao, Y., additional, Fukuda, T., additional, Hashimoto, O., additional, Hayakawa, T., additional, Hiyama, E., additional, Hotchi, H., additional, Imai, K., additional, Imoto, W., additional, Kakiguchi, Y., additional, Kameoka, M., additional, Kishimoto, T., additional, Krutenkova, A., additional, Maruta, T., additional, Matsumura, A., additional, May, M., additional, Minami, S., additional, Miura, Y., additional, Miwa, K., additional, Miyoshi, T., additional, Mizunuma, K., additional, Nagae, T., additional, Nakamura, S.N., additional, Nakazawa, K., additional, Niiyama, M., additional, Nomura, H., additional, Noumi, H., additional, Okayasu, Y., additional, Ota, S., additional, Ohtaki, T., additional, Outa, H., additional, Pile, P., additional, Quinn, B.P., additional, Rusek, A., additional, Saha, P.K., additional, Sato, Y., additional, Saitoh, T., additional, Sekimoto, M., additional, Sutter, R., additional, Takahashi, H., additional, Takahashi, T., additional, Tang, L., additional, Tanida, K., additional, Terashima, S., additional, Togawa, M., additional, Toyoda, A., additional, Ukai, M., additional, Yamauchi, H., additional, Yuan, L., additional, and Zhou, S.H., additional

Published
2005
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181. High-resolution γ-ray spectroscopy of hyperfragments produced by stopped reactions

Author

Miwa, K., primary, Tanida, K., additional, Akikawa, H., additional, Fukao, Y., additional, Hiyama, E., additional, Hotchi, H., additional, Imai, K., additional, Miura, Y., additional, Mizunuma, K., additional, Nakamura, S.N., additional, Niiyama, M., additional, Ota, S., additional, Saha, P.K., additional, Takahashi, H., additional, Takahashi, T., additional, Tamura, H., additional, Terashima, S., additional, Togawa, M., additional, and Ukai, M., additional

Published
2005
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189. HIGH-RESOLUTION γ-RAY SPECTROSCOPY OF HYPERFRAGMENTS PRODUCED BY STOPPED K− REACTIONS

Author

MIWA, K., primary, TANIDA, K., additional, AKIKAWA, H., additional, FUKAO, Y., additional, HIYAMA, E., additional, HOTCHI, H., additional, IMAI, K., additional, MIURA, Y., additional, MIZUNUMA, K., additional, NAKAMURA, S. N., additional, NIIYAMA, M., additional, OTA, S., additional, SAHA, P. K., additional, TAKAHASHI, H., additional, TAKAHASHI, T., additional, TAMURA, H., additional, TERASHIMA, S., additional, TOGAWA, M., additional, and UKAI, M., additional

Published
2004
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199. Telomerase activity in small-cell and non-small-cell lung cancers.

Author

Hiyama K, Hiyama E, Ishioka S, Yamakido M, Inai K, Gazdar AF, Piatyszek MA, Shay JW, Hiyama, K, Hiyama, E, Ishioka, S, Yamakido, M, Inai, K, Gazdar, A F, Piatyszek, M A, and Shay, J W

Abstract

Background: Telomerase is an enzyme that adds hexameric TTAGGG nucleotide repeats onto the ends of vertebrate chromosomal DNAs (i.e., telomeres) to compensate for losses that occur with each round of DNA replication. Somatic cells do not have telomerase activity and stop dividing when the telomeric ends of at least some chromosomes have been shortened to a critical length. It has been suggested that immortalized cells (including some, but probably not all, cancer cells) continue to proliferate indefinitely because they express telomerase.Purpose: To investigate whether expression of telomerase is a prerequisite for the development of naturally occurring human cancers, we assayed the levels of telomerase activity in specimens of human lung tumor and adjacent normal tissue.Methods: Using a polymerase chain reaction-based assay, we examined telomerase activity in 136 primary lung cancer tissues and 68 adjacent noncancerous tissues obtained by surgical resection. We also studied telomerase activity in four primary and 23 metastatic lesions obtained through biopsy, (two patients) or autopsy (10 patients). Relative telomerase activity levels were estimated by serial dilutions of extracts prepared from the specimens. Telomerase activity was also assayed in extracts of cells present in pleural fluids from three patients with adenocarcinoma of the lung.Results: Among surgically resected samples, telomerase activity was detected in 109 (80.1%) of 136 primary lung cancer tissues and in three (4.4%) of 68 normal adjacent tissues. All 11 surgically resected specimens of primary small-cell lung cancer (from 11 patients) revealed high levels of telomerase activity, whereas the activity ranged from undetectable to high levels in the 125 surgically resected specimens of primary non-small-cell lung cancer tissue (from 125 patients). Generally, high levels of telomerase activity were observed in metastatic lesions and tumors with altered telomere length. A few primary and, surprisingly, some metastatic tumors did not appear to have detectable telomerase activity. Telomerase activity was, however, detected in cells present in all tested pleural fluids obtained (from three patients with adenocarcinoma of the lung).Conclusion: The subset of non-small-cell lung cancers that exhibits only low or undetectable levels of telomerase activity may contain primarily mortal cancer cells. Cancers that exhibit high levels of telomerase activity, such as all of the small-cell lung cancers examined in this study, are likely to consist mainly of immortal cells.Implications: Telomerase activity may be useful both as a diagnostic marker to detect the existence of immortal lung cancer cells in clinical materials and as a target for therapeutic intervention. [ABSTRACT FROM AUTHOR]

Published
1995
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200. Ξ bound states and ΛΛ hypernuclei.

Author

Hiyama, E.

Abstract

On the basis of three- and four-body models, level structures of S = −2 systems are investigated. Discussions are given for double-Λ hypernuclei with A = 7 to 10, and Ξ hypernuclei with NNΞ, NNNΞ, αΞN, αΞNN and ααΞt cluster structures. As for the ΞN interaction, we employ the Extended Soft-Core model, which has recently proposed by the Nijmegen group. [ABSTRACT FROM AUTHOR]

Published
2007
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