Results 21 to 30 of about 613,869 (322)

Vecinos en el punto de mira. Las víctimas del terrorismo etnonacionalista vasco en La Rioja (1978-1982)

methaodos.revista de ciencias sociales, 2022
Este artículo es un estudio sobre el impacto de ETA y grupos afines en La Rioja durante la transición a la democracia. Con el objetivo de radiografiar sus acciones en este territorio se realiza un acercamiento al fenómeno a través de un heterogéneo ...
David Mota Zurdo
doaj   +1 more source

Measurements of Branching Fractions and CP Asymmetries in B-> etah Decays [PDF]

, 2004
We report measurements of B to pseudoscalar-pseudoscalar decays with at least one eta meson in the final state using 140 fb^{-1} of data collected by the Belle detector at KEKB e^+ e^- collider. We observe the decay B^+-> eta pi^+ and find evidence of B^+
Abe, K., Abe, K., Aihara, H., Akatsu, M., Asano, Y., Aushev, T., Bakich, A. M., Balagura, V., Ban, Y., Banerjee, S., Bedny, I., Bitenc, U., Bizjak, I., Blyth, S., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, P., Chao, Y., Chen, A., Chen, K. -F., Cheon, B. G., Chistov, R., Choi, S. -K., Choi, Y., Chuvikov, A., Cole, S., Dalseno, J., Danilov, M., Dash, M., Dragic, J., Drutskoy, A., Eidelman, S., Eiges, V., Fratina, S., Gabyshev, N., Garmash, A., Gershon, T., Gokhroo, G., Guo, R., Haba, J., Hayasaka, K., Hayashii, H., Hazumi, M., Hokuue, T., Hoshi, Y., Hou, S., Hou, W. -S., Hsiung, Y. B., Huang, H. -C., Iijima, T., Imoto, A., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Kang, J. H., Kang, J. S., Kapusta, P., Katayama, N., Kawai, H., Kawasaki, T., Khan, H. R., Kichimi, H., Kim, H. J., Kim, J. H., Kim, S. K., Kim, S. M., Koppenburg, P., Korpar, S., Križan, P., Krokovny, P., Kulasiri, R., Kuo, C. C., Kwon, Y. -J., Lee, S. E., Lee, S. H., Lesiak, T., Li, J., Lin, S. -W., Liventsev, D., Majumder, G., Mandl, F., Matsumoto, T., Mitaroff, W., Miyabayashi, K., Miyake, H., Miyata, H., Mizuk, R., Mohapatra, D., Mori, T., Nagamine, T., Nagasaka, Y., Nakano, E., Nakao, M., Nishida, S., Ogawa, S., Ohshima, T., Okabe, T., Okuno, S., Olsen, S. L., Ostrowicz, W., Ozaki, H., Pakhlov, P., Park, C. W., Park, H., Parslow, N., Pestotnik, R., Piilonen, L. E., Rozanska, M., Sagawa, H., Sakai, Y., Schietinger, T., Schneider, O., Schwartz, A. J., Schönmeier, P., Schümann, J., Senyo, K., Shibuya, H., Singh, J. B., Somov, A., Soni, N., Stamen, R., Stanič, S., Starič, M., Sumisawa, K., Sumiyoshi, T., Tajima, O., Takasaki, F., Tamura, N., Tanaka, M., Teramoto, Y., Tian, X. C., Uehara, S., Ueno, K., Uglov, T., Uno, S., Ushiroda, Y., Varner, G., Varvell, K. E., Villa, S., Wang, C. C., Wang, C. H., Wang, M. -Z., Yamaguchi, A., Yamamoto, H., Yamashita, Y., Yamauchi, M., Yang, Heyoung, Ying, J., Zhang, J., Zhang, L. M., Zhang, Z. P., Zhilich, V., Žontar, D.   +157 more
core   +1 more source

Search for the X (2370) and observation of eta(c) -> eta eta eta ' in J/psi -> gamma eta eta eta '

, 2021
Using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, we perform a study of J/psi -> gamma eta eta eta' to search for the X(2370) and eta(c) in the eta eta eta' invariant mass distribution. No significant signal for the X(2370) is observed, and we set an upper limit for the product branching fraction of B(J/psi -> gamma X(2370)
Kolcu, Onur Buğra, BESIII Collaboration
openaire   +4 more sources

Eta and eta’ physics in KLOE [PDF]

EPJ Web of Conferences, 2019
We present results obtained by the KLOE Collaboration at the DAфNE e+e− collider located in Frascati Laboratories, Italy. The results concern precise measurements of several η meson decays such as Dalitz slope parameters and charge asymmetries for $ \eta \to \mathop \pi \nolimits^ + \mathop \pi \nolimits^ - \mathop \pi \nolimits^0 $, branching ratio
openaire   +3 more sources

New tests of variability of the speed of light.

EPJ Web of Conferences, 2016
We present basic ideas of the varying speed of light cosmology, its formulation, benefits and problems. We relate it to the theories of varying fine structure constants and discuss some new tests (redshift drift and angular diameter distance maximum ...
Dąbrowski Mariusz P., Salzano Vincenzo, Balcerzak Adam, Lazkoz Ruth   +3 more
doaj   +1 more source

π-Hole Tetrel Bonds—Lewis Acid Properties of Metallylenes

Crystals, 2022
The MP2/aug-cc-pVTZ calculations were performed on the dihalometallylenes to indicate their Lewis acid and Lewis base sites. The results of the Cambridge Structural Database search show corresponding and related crystal structures where the tetrel center
Sławomir J. Grabowski
doaj   +1 more source

Mixing and decay constants of pseudoscalar mesons: Octet-singlet vs. quark flavor basis [PDF]

, 1998
Although eta-eta' mixing is qualitatively well understood as a consequence of the U(1)_A anomaly in QCD together with a broken SU(3) flavor symmetry, until recently the values of decay and mixing parameters of the eta and eta' were only approximately ...
Acciarri, Ali, Ball, Barnett, Behrens, Chao, Cheng, Feldmann, Feldmann, Fritzsch, Gilman, Gronberg, Halperin, Isgur, Kaiser, Leutwyler, Novikov, Thorsten Feldmann, Veneziano, Witten   +19 more
core   +3 more sources

chi_c0 and chi_c2 Decays into eta eta, eta eta', and eta' eta' Final States

, 2006
Using a sample of 3 x 10^6 psi(2S) decays collected by the CLEO III and CLEO_c detector configurations, we present results of a study of _{c0} and _{c2} decays into eta-eta, eta-etaprime, and etaprime-etaprime final states. We find B(chi_{c0} -> eta-eta)= (0.31+-0.05+-0.04+-0.02)%, B(chi_{c0} -> eta-etaprime) <0.05 % at the 90% confidence ...
Adams, G. S., Collaboration, CLEO
openaire   +2 more sources

Las víctimas del terrorismo en España e Irlanda del Norte: dinámicas de selección durante los «años de plomo» y políticas de reparación

Arbor: Ciencia, Pensamiento y Cultura, 2019
ETA y el IRA, las dos organizaciones terroristas más antiguas de Europa, llegaron a las cotas más elevadas de su actividad armada durante los «años de plomo», entre 1968 y 1981.
María Jiménez Ramos
doaj   +1 more source

Classification of So-Called Non-Covalent Interactions Based on VSEPR Model

Molecules, 2021
The variety of interactions have been analyzed in numerous studies. They are often compared with the hydrogen bond that is crucial in numerous chemical and biological processes.
Sławomir J. Grabowski
doaj   +1 more source