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105 results on '"Ciortea C"'

7. Vacancy sharing between the L-subshells of Th under heavy ion impact

Author

Berinde, A., Ciortea, C., Enulescu, A., Flueraşu, Daniela, Legrand, I., Piticu, I., Zoran, V., Araki, H., editor, Ehlers, J., editor, Hepp, K., editor, Kippenhahn, R., editor, Weidenmüller, H. A., editor, Wess, J., editor, Zittartz, J., editor, Beiglböck, W., editor, Berényi, D., editor, and Hock, G., editor

Published
1988
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12. Search for Long-Lived States of $\pi^+\pi^-$ Atoms : Addendum to the DIRAC Proposal

Author

Adeva, B, Afanasyev, L, Anania, A, Aogaki, S, Augsten, K, Batyuk, P, Benelli, A, Brekhovskikh, V, Cechak, T, Chiba, M, Ciortea, C, Curceanu, C, Doskarova, P, Dudarev, A, Dumitriu, D, Drijard, D, Fluerasu, D, Gortchakov, O, Gritsay, K, Guaraldo, C, Gugiu, M, Hansroul, M, Hosek, R, Hons, Z, Iwashita, Y, Karpukhin, V, Kluson, J, Kobayashi, M, Kruglov, V, Kruglova, L, Kulikov, A, Kulish, E, Kuptsov, A, Lamberto, A, Lednicky, R, Martincik, J, Nemenov, L, Nikitin, M, Okada, K, Pentia, M, Plo, M, Prusa, P, Rappazzo, G, Ryazantsev, A, Romero, A, Ronzhin, V, Rykalin, V, Saborido, J, Schacher, J, Shlyapnikov, P, Smolik, J, Takeutchi, F, Trojek, T, Urban, T, Vrba, T, Vazquez, P, Yazkov, V, Yoshimura, Y, Zhabitsky, M, and Zrelov, P

Subjects
Detectors and Experimental Techniques
Abstract

The proposed experiment is a further development of the DIRAC experiment already running at CERN PS. The observation of long-lived (metastable) states of $\pi^+\pi^-$ atoms ($A_{2\pi}$) will be performed with the same setup. This observation opens a possibility to measure the energy difference between $ns$ and $np$ states and to determine the value of the combination $2a_0+a_2$ of S-wave $\pi\pi$ scattering lengths in a model-independent way. In combination with the $A_{2\pi}$ lifetime measurement providing the value $|a_0-a_2|$ DIRAC is in the position to get $a_0$ and $a_2$ separately on the basis of $A_{2\pi}$ data only.

Published
2012

13. Search for Long-Lived States of $\pi^+\pi^-$ Atoms: Addendum to the DIRAC Proposal

Author

Adeva, B, Afanasyev, L, Amsler, C, Anania, A, Aogaki, S, Augsten, K, Benelli, A, Brekhovskikh, V, Cechak, T, Chiba, M, Ciortea, C, Ciocarlan, C, Constantinescu, S, Curceanu, C, Doskarova, P, Dudarev, A, Dumitriu, D, Drijard, D, Enulescu, A, Fluerasu, D, Gortchakov, O, Gritsay, K, Guaraldo, C, Gugiu, M, Hansroul, M, Hosek, R, Hons, Z, Karpukhin, V, Kluson, J, Kobayashi, M, Kulikov, A, Kulish, E, Kuptsov, A, Kruglov, V, Kruglova, L, Kuroda, K, Lamberto, A, Lednicky, R, Martincik, J, Nemenov, L, Nikitin, M, Okada, K, Pentia, M, Plo, M, Prusa, P, Rappazzo, G, Ryazantsev, A, Romero, A, Ronzhin, V, Rykalin, V, Saborido, J, Schacher, J, Shlyapnikov, P, Smolik, J, Takeutchi, F, Tarasov, A, Trojek, T, Urban, T, Vrba, T, Vazquez, P, Yazkov, V, Yoshimura, Y, Zhabitsky, M, and Zrelov, P

Subjects
Detectors and Experimental Techniques
Abstract

The proposed experiment is a further development of the DIRAC experiment already running at CERN PS. Up to now more than 21000 $\pi^+\pi^-$ pairs originated from the $\pi^+\pi^-$ atom ($A_{2\pi}$) breakup were identified and the overall accuracy of the $A_{2\pi}$ lifetime is about 9% in accordance with the DIRAC proposal. This measurement allowed to extract the difference $|a_0-a_2|$ of $s$-wave $\pi\pi$-scattering length with accuracy of 4.3%. The observation of long-lived (metastable) $A_{2\pi}$ states will be performed with the same setup. This observation opens a possibility to measure the energy difference between $ns$ and $np$ states and to determine the value of another combination $2a_0+a_2$ of $\pi\pi$ scattering length in a model-independent way. In combination with the first measurement it allows to get $a_0$ and $a_2$ separately. An additional measurement of the multiple scattering angles in different materials with accuracy better than 1% will be performed in parallel with the observation. This measurement is needed to improve the systematic accuracy in the $A_{2\pi}$ lifetime for the data already collected in 2008--2010.

Published
2011

18. X-Ray Fluorescence from the Element with Atomic NumberZ=120

Author

Frégeau, M. O., primary, Jacquet, D., additional, Morjean, M., additional, Bonnet, E., additional, Chbihi, A., additional, Frankland, J. D., additional, Rivet, M. F., additional, Tassan-Got, L., additional, Dechery, F., additional, Drouart, A., additional, Nalpas, L., additional, Ledoux, X., additional, Parlog, M., additional, Ciortea, C., additional, Dumitriu, D., additional, Fluerasu, D., additional, Gugiu, M., additional, Gramegna, F., additional, Kravchuk, V. L., additional, Marchi, T., additional, Fabris, D., additional, Corsi, A., additional, and Barlini, S., additional

Published
2012
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19. Lifetime measurement of $\pi^{+}\pi^{-}$ atoms to test low energy QCD predictions

Author

Adeva, B, Afanasiev, L G, Angeles-Lopez, M, Benayoun, M, Chvyrov, A, Ciortea, C, Dumitriu, D, Gianotti, P, Gomes, F, Gorshakov, O, Groza, L, Guaraldo, C, Kalinina, N, Karpukhin, V, Kobayashi, M, Komarov, V, Kruglov, V, Kruglova, L, Kulikov, A, Kuptsov, A, Kuroda, K, Lanaro, A, Le Bornec, Y, Leruste, Ph, Lucherini, V, Maki, T, Micu, L, Montanet, L, Mozzetti, R, Narjoux, J, Nemenov, L, Nichitiu, F, Nikitin, M, Nupieri, M, Okada, K, Okusawa, T, Olshevsky, V, Pazos, A, Pentia, M, Petrascu, M, Petrascu, C, Piticu, I, Plo, M, Ponta, T, Pustylnik, Zh, Rjabkov, D, Rosca, A, Schacher, J, Scheglov, Yu, Selikov, A, Szilagyi, Z, Takeutchi, F, Tarasov, A, Tatischeff, B, Trusov, S, Willis, N, Yazkov, V, Yonnet, J, Yoshida, T, Zghiche, A, Zoran, V, and Zrelov, P

Subjects
Detectors and Experimental Techniques
Published
1994

41. Magnetic moment measurement of the 129.2 keV level in153Gd

Author

Bădică, T., Bogdan, D., Ciortea, C., Dima, S., Petrovici, A., and Popescu, I.

Abstract

The magnetic moment µ = (0.37±0.07)µN of the 129.2 keV level in153Gd was determined from measurements of the integral perturbed angular correlation (IPAC) in an external magnetic field.

Published
1977
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44. Magnetic moment measurements in64Zn and66Zn

Author

Bădică, T., Ciortea, C., Pantelică, D., Petrovici, A., and Popescu, I.

Abstract

The ratios of the ?g?-factors of the 7-, 4.635 MeV level in64Zn and 6-, 4.074 MeV and 7-, 4.250 MeV levels in66Zn has been found to be (1±0.18):(0.64±0.14):(0.60±0.12) by means of the recoil-into-gas (helium) integral perturbed angular correlation technique. The studied states were populated by the reactions51V(16O,p2n)64Zn atE0=51 MeV and55Mn(14N,2pn)66Zn atEN=54 MeV.

Published
1983
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45. Magnetic moment measurement in125Te by IPAC

Author

Bădică, T., Ciortea, C., Dima, S., Gelberg, A., Popescu, I., and Vâţă, I.

Abstract

The magnetic moment of the 35.5 keV (3/2+) excited state in125Te was measured in an external magnetic field. The value obtained µ=0.57 ± 0.07µN agrees with Mössbauer determinations and Kisslinger-Sorensen calculations.

Published
1972
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47. Lifetime measurement of pi+ pi- atoms to test low-energy QCD predictions: Proposal to the SPSLC

Author

Adeva, B., Afanasev, L., Angeles Lopez, M., Maurice Benayoun, Chvyrov, A., Ciortea, C., Dumitriu, D., Gianotti, P., Gomes, F., Gorchakov, O., Groza, L., Guaraldo, C., Kalinina, N., Karpukhin, V., Kobayashi, M., Komarov, V., Kruglov, V., Kruglova, L., Kulikov, A., Kuptsov, A., Kuroda, K., Lanaro, A., Le Bornec, Y., Leruste, P., Lucherini, V., Maki, T., Micu, L., Montanet, L., Mozzetti, R., Narjoux, J., Nemenov, L., Nichitiu, F., Nikitin, M., Nupieri, M., Okada, K., Okusawa, T., Olshevsky, V., Pazos, A., Pentia, M., Petrascu, M., Petrascu, C., Piticu, I., Plo, M., Ponta, T., Pustylnik, Z., Ryabkov, D., Rosca, A., Schacher, J., Shcheglov, Yu, Selikov, A., Szilagyi, Z., Takeuchi, F., Tarasov, A., Tatischeff, B., Trusov, Sergey V., Willis, N., Yazkov, V., Yonnet, J., Yoshida, T., Zghiche, A., Zoran, V., and Zrelov, P.

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