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Your search keyword '"Hayakawa, S.H."' showing total 9 results
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9 results on '"Hayakawa, S.H."'

3. Results of the 𝚵− atomic X-ray measurement in J-PARC E07

Author

Fujita Manami, Ishikawa Y., Ukai M., Kanauchi H., Koike T., Tamura H., Hosomi K., Yamamoto T.O., Ekawa H., Hayakawa S.H., Nakazawa K., Yoshida J., Yoshimoto M., Kasagi A., Nishimura N., and Hayashi K.

Subjects
Physics, QC1-999
Abstract

Ξ− atomic X-ray spectroscopy is one of the most useful methods for investigation of the Ξ-nucleus strong interaction. A serious problem in the measurement is the significant background coming from in-flight Ξ− decay. For the first Ξ− atomic X-ray spectroscopy experiment, a novel method of identifying stopped Ξ− events using nuclear emulsion was developed to reject background photons from in-flight Ξ− decay. We succeeded in reducing the background to 1/170 by this method employing coincidence measurements using the nuclear emulsion and X-ray detectors.

Published
2022
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4. Results of the 횵− atomic X-ray measurement in J-PARC E07.

Author

Fujita, Manami, Ishikawa, Y., Ukai, M., Kanauchi, H., Koike, T., Tamura, H., Hosomi, K., Yamamoto, T.O., Ekawa, H., Hayakawa, S.H., Nakazawa, K., Yoshida, J., Yoshimoto, M., Kasagi, A., Nishimura, N., and Hayashi, K.

Subjects
X-ray measurement, NUCLEAR emulsions, PHOTONS, X-ray detection, NUCLEAR counters
Abstract

Ξ− atomic X-ray spectroscopy is one of the most useful methods for investigation of the Ξ-nucleus strong interaction. A serious problem in the measurement is the significant background coming from in-flight Ξ− decay. For the first Ξ− atomic X-ray spectroscopy experiment, a novel method of identifying stopped Ξ− events using nuclear emulsion was developed to reject background photons from in-flight Ξ− decay. We succeeded in reducing the background to 1/170 by this method employing coincidence measurements using the nuclear emulsion and X-ray detectors. [ABSTRACT FROM AUTHOR]

Published
2022
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5. X-ray spectroscopy experiments on exotic Xi atoms at J-PARC

Author

Yamamoto, Takeshi O, primary, Chiga, N., additional, Ekawa, H., additional, Fujita, M., additional, Gogami, T., additional, Harada, T., additional, Hayakawa, S.H., additional, Hosomi, K., additional, Ichikawa, Y., additional, Ishikawa, Y., additional, Kamada, K., additional, Kanauchi, H., additional, Koike, T., additional, Miwa, K., additional, Nagae, T., additional, Ogura, Y., additional, Oura, F., additional, Rogers, T.G., additional, Takahashi, T., additional, Tamura, H., additional, Tanida, K., additional, Ukai, M., additional, and Yoshida, J., additional

Published
2022
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6. Measurement of the differential cross sections of the Σ−p elastic scattering in momentum range 470 to 850 MeV/c

Author

Miwa, K., Ahn, J.K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S.W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T., Hasegawa, S., Hayakawa, S.H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W.S., Kajikawa, S., Kanauchi, H., Kanda, H., Kitaoka, T., Kang, B.M., Kawai, H., Kim, S.H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Nanamura, T., Naruki, M., Ozawa, S., Raux, L., Rogers, T.G., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K.N., Suzuki, S., Tabata, M., De La Taille, C., Takahashi, H., Takahashi, T.N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Wada, S., Yamamoto, T.O., Yoshida, J., Yoshimura, K., Organisation de Micro-Électronique Générale Avancée (OMEGA), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and J-PARC E40

Subjects
differential cross section: measured, hydrogen: liquid: target, statistics, +K%2B+Sigma%22">pi- p --> K+ Sigma, J-PARC Lab, p Sigma: elastic scattering, nucleon hyperon: interaction, angular distribution, pi: beam, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], baryon baryon: interaction, experimental results
Abstract

International audience; A high statistics Σp scattering experiment is performed at the J-PARC Hadron Experimental Facility. Momentum-tagged Σ−s running in a liquid hydrogen target are accumulated by detecting the π−p→K+Σ− reaction with a high intensity π− beam of 20 M/spill. The differential cross sections of the Σ−p elastic scattering were derived with a drastically improved accuracy by identifying approximately 4500 events from 1.72×107Σ−. The derived differential cross section shows a clear forward-peaking angular distribution for a Σ− momentum range from 470 to 850 MeV/c. The accurate data will impose a strong constraint on the theoretical models of the baryon-baryon interactions.

Published
2021

7. Study of ∑N interaction from the ∑p scattering experiment at J-PARC

Author

Miwa, K., primary, Ahn, J.K., additional, Akazawa, Y., additional, Aramaki, T., additional, Ashikaga, S., additional, Callier, S., additional, Chiga, N., additional, Choi, S. W., additional, Ekawa, H., additional, Evtoukhovitch, P., additional, Fujioka, N., additional, Fujita, M., additional, Gogami, T., additional, Harada, T., additional, Hasegawa, S., additional, Hayakawa, S.H., additional, Honda, R., additional, Hoshino, S., additional, Hosomi, K., additional, Ichikawa, M., additional, Ichikawa, Y., additional, Ieiri, M., additional, Ikeda, M., additional, Imai, K., additional, Ishikawa, Y., additional, Ishimoto, S., additional, Jung, W. S., additional, Kajikawa, S., additional, Kanauchi, H., additional, Kanda, H., additional, Kang, B. M., additional, Kawai, H., additional, Kim, S. H., additional, Kobayashi, K., additional, Koike, T., additional, Matsuda, K., additional, Matsumoto, Y., additional, Nagao, S., additional, Nagatomi, R., additional, Nakada, Y., additional, Nakagawa, M., additional, Nakamura, I., additional, Nanamura, T., additional, Naruki, M., additional, Ozawa, S., additional, Raux, L., additional, Rogers, T., additional, Sakaguchi, A., additional, Sakao, T., additional, Sako, H., additional, Sato, S., additional, Shiozaki, T., additional, Shirotori, K., additional, Suzuki, K. N., additional, Suzuki, S., additional, Tabata, M., additional, Taille, C. d. L., additional, Takahashi, H., additional, Takahashi, T., additional, Takahashi, T. N., additional, Tamura, H., additional, Tanaka, M., additional, Tanida, K., additional, Tsamalaidze, Z., additional, Ukai, M., additional, Umetsu, H., additional, Yamamoto, T. O., additional, Yoshida, J., additional, and Yoshimura, K., additional

Published
2020
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8. Study of $\Sigma$N interaction from the $\Sigma$p scattering experiment at J-PARC

Author

Miwa, K., Ahn, J.K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S.W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T., Hasegawa, S., Hayakawa, S.H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W.S., Kajikawa, S., Kanauchi, H., Kanda, H., Kang, B.M., Kawai, H., Kim, S.H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Nanamura, T., Naruki, M., Ozawa, S., Raux, L., Rogers, T., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K.N., Suzuki, S., Tabata, M., De La Taille, C., Takahashi, H., Takahashi, T.N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Yamamoto, T.O., Yoshida, J., Yoshimura, K., Organisation de Micro-Électronique Générale Avancée (OMEGA), and École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
hydrogen: liquid: target, pi-: beam, statistics, J-PARC Lab, p Sigma: scattering, elastic scattering, Physics::Accelerator Physics, inelastic scattering, nucleon Sigma: interaction, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], hyperon: beam, conference, experimental results
Abstract

International audience; A high statistics ∑p scattering experiment has been performed at the K1.8 beamline in the J-PARC Hadron Experimental Facility. Data for momentum-tagged ∑− beam running in a liquid hydrogen target were accumulated by detecting the reaction with a high intensity π− beam of 20 M/spill. The number of the Σ− beam was about 1.7 × 107 in total. The ∑−ρ elastic scattering and the ∑−p → Λn inelastic scattering events were successfully observed with about 100 times larger statistics than that in past experiments.

Published
2019

9. Search For A Ξ Bound State In The 12C(K-,K+)X Reaction At 1.8 Gev/c

Author

Nagae, Tomofumi, primary, Kanatsuki, S., additional, Gogami, T., additional, Ekawa, H., additional, Nanamura, T., additional, Naruki, M., additional, Hasegawa, S., additional, Hosomi, K., additional, Ichikawa, Y., additional, Imai, K., additional, Sako, H., additional, Sato, S., additional, Sugimura, H., additional, Tanida, Kiyoshi, additional, Kobayashi, K., additional, Hayakawa, S.H., additional, Hayakawa, T., additional, Honda, R., additional, Nakada, Y., additional, Nakagawa, M., additional, Sakaguchi, A., additional, Akazawa, Y., additional, Fujita, M., additional, Miwa, K., additional, Sasaki, Y., additional, Tamura, H., additional, Yamamoto, T.O., additional, Aoki, K., additional, Takahashi, T., additional, Ukai, M., additional, Ahn, J.K., additional, Jung, W., additional, Kim, S.H., additional, Botta, E., additional, Feliciello, A., additional, Marcello, Simonetta, additional, Evtoukhovitch, P., additional, Tsamalaidze, Z., additional, Lee, J.Y., additional, Moon, T., additional, Kimbara, S., additional, Hasegawa, T., additional, and Shirotori, K., additional

Published
2017
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