Search Results - "Badagnani, D"

Analysis of the γNΔ and ΔNπ interactions for pion photoproduction by Mariano, A., Barbero, C., Badagnani, D., Tamayo Agudelo, D.F.

“…In this paper we analyze for the first time the γNΔ excitation vertex from the point of view of the dynamics of the Δ field, Ψμ. That is, we look for the value…”
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Measurement of the depth of maximum of extensive air showers above 10{18} eV by Abraham, J, Abreu, P, Aglietta, M, Ahn, E J, Allard, D, Allekotte, I, Allen, J, Alvarez-Muñiz, J, Ambrosio, M, Anchordoqui, L, Andringa, S, Anticić, T, Anzalone, A, Aramo, C, Arganda, E, Arisaka, K, Arqueros, F, Asorey, H, Assis, P, Aublin, J, Ave, M, Avila, G, Bäcker, T, Badagnani, D, Balzer, M, Barber, K B, Barbosa, A F, Barroso, S L C, Baughman, B, Bauleo, P, Beatty, J J, Becker, B R, Becker, K H, Bellétoile, A, Bellido, J A, Benzvi, S, Berat, C, Bergmann, T, Bertou, X, Biermann, P L, Billoir, P, Blanch-Bigas, O, Blanco, F, Blanco, M, Bleve, C, Blümer, H, Bohácová, M, Boncioli, D, Bonifazi, C, Bonino, R, Borodai, N, Brack, J, Brogueira, P, Brown, W C, Bruijn, R, Buchholz, P, Bueno, A, Burton, R E, Busca, N G, Caballero-Mora, K S, Caramete, L, Caruso, R, Castellina, A, Catalano, O, Cataldi, G, Cazon, L, Cester, R, Chauvin, J, Chiavassa, A, Chinellato, J A, Chou, A, Chudoba, J, Clay, R W, Colombo, E, Coluccia, M R, Conceição, R, Contreras, F, Cook, H, Cooper, M J, Coppens, J, Cordier, A, Cotti, U, Coutu, S, Covault, C E, Creusot, A, Criss, A, Cronin, J, Curutiu, A, Dagoret-Campagne, S, Dallier, R, Daumiller, K, Dawson, B R, de Almeida, R M, De Domenico, M, De Donato, C, de Jong, S J, De La Vega, G, de Mello Junior, W J M, de Mello Neto, J R T, De Mitri, I

“…We describe the measurement of the depth of maximum, X{max}, of the longitudinal development of air showers induced by cosmic rays. Almost 4000 events above…”
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Correlation of the highest-energy cosmic rays with nearby extragalactic objects by Abraham, J, Abreu, P, Aglietta, M, Aguirre, C, Allard, D, Allekotte, I, Allen, J, Allison, P, Alvarez, C, Alvarez-Muñiz, J, Ambrosio, M, Anchordoqui, L, Andringa, S, Anzalone, A, Aramo, C, Argirò, S, Arisaka, K, Armengaud, E, Arneodo, F, Arqueros, F, Asch, T, Asorey, H, Assis, P, Atulugama, B S, Aublin, J, Ave, M, Avila, G, Bäcker, T, Badagnani, D, Barbosa, A F, Barnhill, D, Barroso, S L C, Bauleo, P, Beatty, J, Beau, T, Becker, B R, Becker, K H, Bellido, J A, Benzvi, S, Berat, C, Bergmann, T, Bernardini, P, Bertou, X, Biermann, P L, Billoir, P, Blanch-Bigas, O, Blanco, F, Blasi, P, Bleve, C, Blümer, H, Bohácová, M, Bonifazi, C, Bonino, R, Boratav, M, Brack, J, Brogueira, P, Brown, W C, Buchholz, P, Bueno, A, Busca, N G, Caballero-Mora, K S, Cai, B, Camin, D V, Caruso, R, Carvalho, W, Castellina, A, Catalano, O, Cataldi, G, Cazón-Boado, L, Cester, R, Chauvin, J, Chiavassa, A, Chinellato, J A, Chou, A, Chye, J, Clark, P D J, Clay, R W, Colombo, E, Conceição, R, Connolly, B, Contreras, F, Coppens, J, Cordier, A, Cotti, U, Coutu, S, Covault, C E, Creusot, A, Cronin, J, Dagoret-Campagne, S, Daumiller, K, Dawson, B R, de Almeida, R M, De Donato, C, de Jong, S J, De La Vega, G, de Mello Junior, W J M, de Mello Neto, J R T, De Mitri, I, de Souza, V, Del Peral, L

“…Using data collected at the Pierre Auger Observatory during the past 3.7 years, we demonstrated a correlation between the arrival directions of cosmic rays…”
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The fluorescence detector of the Pierre Auger Observatory by Abreu, P., Aguirre, C., Argirò, S., Aublin, J., Ave, M., Badagnani, D., Barenthien, N., Boháčová, M., Brack, J., Brown, W.C., Caballero-Mora, K.S., Camin, D., Caramete, L., Chauvin, J., Connolly, B., Cordero, A., Cotti, U., Coutu, S., de Almeida, R.M., De La Vega, G., de Souza, V., Deligny, O., Delle Fratte, C., D’Olivo, J.C., Engel, R., Escobar, C.O., Fauth, A.C., Fonte, R., García Gámez, D., Geenen, H., Ghia, P.L., Guardincerri, Y., Guerard, C., Gumbsheimer, R., Guedes, G.P., Hansen, P., Harari, D., Hofman, G., Hucker, H., Ionita, F., Jiraskova, S., Kemp, E., Knapp, J., Krömer, O., Lachaud, C., Lautridou, P., Lebrun, P., Lozano Bahilo, J., Mantsch, P., Martineau, O., McNeil, R.R., Melo, D., Miramonti, L., Monnier Ragaigne, D., Moreno, J.C., Mostafá, M., Newman-Holmes, C., Newton, D., Nhung, P.T., Oliva, P., Olmos-Gilbaja, V.M., Pe¸kala, J., Perrone, L., Petermann, E., Pfendner, C., Pichel, A., Ponce, V.H., Privitera, P., Quel, E.J., Raia, G., Reis, H.C., Reucroft, S., Rodriguez, G., Rodriguez-Cabo, I., Ros, G., Santos, E.M., Sarazin, F., Sarkar, S., Scherini, V., Schiffer, P., Schmidt, A., Schmidt, F., Schuster, D., Shellard, R.C., Smith, A.G.K., Suarez, F., Szadkowski, Z., Tcherniakhovski, D., Todero Peixoto, C.J., Tonachini, A., Tristram, G., van den Berg, A.M., Videla, M., Vitali, G., Wahlberg, H., Wiebusch, C., Wiencke, L., Wilczyńska, B., Zas, E., Zaw, I.

“…The Pierre Auger Observatory is a hybrid detector for ultra-high energy cosmic rays. It combines a surface array to measure secondary particles at ground level…”
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Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter by Allard, D., Allekotte, I., Alvarez Castillo, J., Andringa, S., Assis, P., Badagnani, D., Barroso, S.L.C., Baughman, B., Becker, B.R., Bellido, J.A., Billoir, P., Blanco, F., Bleve, C., Boháčová, M., Borodai, N., Cataldi, G., Chauvin, J., Chinellato, J.A., Chou, A., Chudoba, J., Conceição, R., Cordier, A., Creusot, A., Dagoret-Campagne, S., Daumiller, K., de Mello Junior, W.J.M., De Mitri, I., de Vries, K.D., Dembinski, H., Di Giulio, C., Dobrigkeit, C., dos Anjos, J.C., Escobar, C.O., Ferrero, A., Fleck, I., Fröhlich, U., García, B., Gelmini, G., Gemmeke, H., Giller, M., Gómez Berisso, M., Guarino, F., Harmsma, S., Italiano, A., Kadija, K., Kotera, K., Krohm, N., Kulbartz, J.K., Leão, M.S.A.B., Lebrun, P., Lhenry-Yvon, I., Link, K., López, R., Maldera, S., Mantsch, P., Mariazzi, A.G., Martello, D., Martin, L., Maurizio, D., Mičanović, S., Mollerach, S., Moreno, J.C., Navarro, J.L., Nitz, D., Oehlschläger, J., Pech, M., Pesce, R., Petermann, E., Petrera, S., Pfendner, C., Phan, N., Piegaia, R., Privitera, P., Quel, E.J., Ravel, O., Ridky, J., Rodriguez, G., Rodriguez Rojo, J., Santander, M., Sciutto, S.J., Segreto, A., Sorokin, J., Spinka, H., Squartini, R., Suomijärvi, T., Supanitsky, A.D., Swain, J., Tamashiro, A., Tomé, B., Tueros, M., Valiño, I., Vargas Cárdenas, B., Vázquez, R.A., Weindl, A., Whelan, B.J., Wilczyński, H., Williams, C., Wundheiler, B., Yamamoto, T., Yuan, G.

“…► Correlation of ultra high energy cosmic rays with nearby extragalactic matter. ► Evidence of anisotropy in ultra high energy arrival directions. ►…”
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Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei by Abreu, P., Aguirre, C., Allekotte, I., Andringa, S., Arqueros, F., Aublin, J., Ave, M., Bäcker, T., Blasi, P., Bleve, C., Boháčová, M., Brack, J., Brown, W.C., Cai, B., Carvalho, W., Castellina, A., Cester, R., Connolly, B., Cronin, J., Dawson, B.R., de Mello, W.J.M., de Mello Neto, J.R.T., De Mitri, I., de Souza, V., Selva, A. Della, Fratte, C. Delle, DuVernois, M.A., Fauth, A.C., Filevich, A., Fleck, I., Fracchiolla, C.E., García Gámez, D., Gonçalves, P., González, M., Hague, J.D., Hansen, P., Harmsma, S., Healy, M.D., Homola, P., Hörandel, J., Iarlori, M., Ionita, F., Kaducak, M., Keilhauer, B., Kemp, E., Knapik, R., La Rosa, G., López, R., García, R. Luna, Macolino, C., Manceñido, M.E., Mariazzi, A.G., McNeil, R.R., Medina-Tanco, G., Melo, D., Menichetti, E., Meyhandan, R., Mollerach, S., Montanet, F., Mussa, R., Navarra, G., Olmos-Gilbaja, V.M., Ortolani, F., Selmi-Dei, D. Pakk, Pelayo, R., Perrone, L., Platino, M., Reucroft, S., Ridky, J., Rodriguez, G., Rojo, J. Rodriguez, Rodriguez-Cabo, I., Rosado, J., Roulet, E., Santander, M., Sato, R., Scherini, V., Scholten, O., Sciutto, S.J., Shellard, R.C., Tamashiro, A., Tamburro, A., Thomas, D., Ticona, R., Tkaczyk, W., Torres, I., Travnicek, P., Tueros, M., Unger, M., van den Berg, A.M., Vázquez, R.A., Veiga, A., Warner, D., Wieczorek, G., Wiencke, L., Wilczyński, H., Winnick, M.G., Younk, P., Zas, E., Zepeda, A.

“…Data collected by the Pierre Auger Observatory provide evidence for anisotropy in the arrival directions of the cosmic rays with the highest-energies, which…”
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Limit on the diffuse flux of ultrahigh energy tau neutrinos with the surface detector of the Pierre Auger Observatory by Abraham, J., Abreu, P., Aglietta, M., Aguirre, C., Ahn, E. J., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez-Muñiz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Anzalone, A., Aramo, C., Argirò, S., Arisaka, K., Arneodo, F., Arqueros, F., Asch, T., Asorey, H., Assis, P., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Barber, K. B., Barbosa, A. F., Barroso, S. L. C., Baughman, B., Bauleo, P., Beatty, J. J., Beau, T., Becker, B. R., Becker, K. H., Bellétoile, A., Bellido, J. A., BenZvi, S., Berat, C., Bernardini, P., Bertou, X., Biermann, P. L., Billoir, P., Blanch-Bigas, O., Blanco, F., Bleve, C., Blümer, H., Boháčová, M., Bonifazi, C., Bonino, R., Brack, J., Brogueira, P., Brown, W. C., Bruijn, R., Buchholz, P., Bueno, A., Burton, R. E., Busca, N. G., Caballero-Mora, K. S., Caramete, L., Caruso, R., Carvalho, W., Castellina, A., Catalano, O., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J. A., Chou, A., Chudoba, J., Chye, J., Clay, R. W., Colombo, E., Conceição, R., Connolly, B., Contreras, F., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C. E., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., De Domenico, M., De Donato, C., de Jong, S. J., De La Vega, G., de Mello Junior, W. J. M., de Mello Neto, J. R. T., De Mitri, I., de Souza, V., Decerprit, G.

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Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory by Abreu, P., Aguirre, C., Argirò, S., Ave, M., Bäcker, T., Barroso, S.L.C., Baughman, B., Bauleo, P., Bellétoile, A., Bellido, J.A., BenZvi, S., Bertou, X., Blanch-Bigas, O., Boháčová, M., Buchholz, P., Caballero-Mora, K.S., Castellina, A., Chiavassa, A., Colombo, E., Connolly, B., Cronin, J., de Jong, S.J., De Mitri, I., de Vries, K.D., Di Giulio, C., Diep, P.N., Dorofeev, A., dos Anjos, J.C., Escobar, C.O., Facal San Luis, P., Falcke, H., Fauth, A.C., Ferrero, A., Fick, B., Fleck, I., Gambetta, S., Gelmini, G., Gemmeke, H., Ghia, P.L., Giaccari, U., Gold, M.S., Gómez Berisso, M., Gonzalez, D., Grillo, A.F., Halenka, V., Healy, M.D., Hojvat, C., Hörandel, J.R., Huege, T., Hussain, M., Kemp, E., López, R., Lopez Agüera, A., Mantsch, P., Marquez Falcon, H.R., Martínez Bravo, O., Mazur, P.O., Melo, D., Mollerach, S., Monasor, M., Moreno, J.C., Morris, C., Navarra, G., Newton, D., Nierstenhoefer, N., Pacheco, N., Parizot, E., Pavlidou, V., Pech, M., Pepe, I.M., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrolini, A., Petrovic, J., Pisanti, O., Pontz, M., Ravignani, D., Rodriguez Rojo, J., Rodríguez-Frías, M.D., Ros, G., Santander, M., Schroeder, F., Sciutto, S.J., Segreto, A., Semikoz, D., Šmída, R., Spinka, H., Squartini, R., Thomas, D., Timmermans, C., Tkaczyk, W., Todero Peixoto, C.J., Valiño, I., van den Berg, A.M., Venters, T., Westerhoff, S., Wieczorek, G., Wundheiler, B.

“…Atmospheric parameters, such as pressure ( P), temperature ( T) and density ( ρ ∝ P / T ) , affect the development of extensive air showers initiated by…”
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Anisotropy studies around the galactic centre at EeV energies with the Auger Observatory by Aglietta, M., Allard, D., Allison, P., Alvarez, C., Aramo, C., Arisaka, K., Asch, T., Aublin, J., Ave, M., Barnhill, D., Beatty, J., Bellido, J.A., Berat, C., Biermann, P.L., Billoir, P., Brack, J., Cai, B., Camin, D.V., Capdevielle, J.N., Caruso, R., Castellina, A., Cotti, U., Dagoret-Campagne, S., Darriulat, P., Dawson, B.R., de Carvalho, L.A., de Mello, W.J.M., De Mitri, I., Dobrigkeit, C., Dova, M.T., Erdmann, M., Etchegoyen, A., Fazio, D., Fazzini, N., Fick, B., Filevich, A., Fleck, I., Fulgione, W., Geenen, H., Geranios, A., Giller, M., Gobbi, F., Gomez Albarracin, F., Grassi, V., Hague, J.D., Hamilton, J.C., Harari, D., Harton, J.L., Homola, P., Hörandel, J., Horneffer, A., Knapik, R., Knapp, J., Kusenko, A., Lopez Agüera, A., Mancarella, G., Matthiae, G., Maurin, G., McEwen, M., Melo, D., Menichetti, E., Meurer, Chr, Moreno, E., Muller, M.A., Thi, T. Nguyen, Nitz, D., Nosek, D., Oliveira, L.F.A., Ortiz, M., Patel, M., Perrone, L., Petrov, Y., Pham Ngoc, D., Pierog, T., Prado, L., Řídký, J., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Schüssler, F., Sciutto, S.J., Siffert, B.B., Slater, W., Sommers, P., Spinka, H., Strazzeri, E., Timmermans, C., Todero Peixoto, C.J., Torresi, D., Travnicek, P., Urban, M., van Elewyck, V., Veiga, A., Videla, M., Voyvodic, L., Wainberg, O., Walker, P., Warner, D., Westerhoff, S., Wilczyńska, B.

“…Data from the Pierre Auger Observatory are analyzed to search for anisotropies near the direction of the Galactic Centre at EeV energies. The exposure of the…”
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Erratum to “Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei” [Astroparticle Physics 29(3) (2008) 188–204] by Abraham, J., Abreu, P., Aglietta, M., Aguirre, C., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez, C., Alvarez-Muniz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Anzalone, A., Aramo, C., Argiro, S., Arisaka, K., Armengaud, E., Arneodo, F., Arqueros, F., Asch, T., Asorey, H., Assis, P., Atulugama, B.S., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Barbosa, A.F., Barnhill, D., Barroso, S.L.C., Bauleo, P., Beatty, J., Beau, T., Becker, B.R., Becker, K.H., Bellido, J.A., Benzvi, S., Bérat, C., Bergmann, T., Bernardini, P., Bertou, X., Biermann, P.L., Billoir, P., Blanch-Bigas, O., Blanco, F., Blasi, P., Bleve, C., Blümer, H., Bohacova, M., Bonifazi, C., Bonino, R., Boratav, M., Brack, J., Brogueira, P., Brown, W.C., Buchholz, P., Bueno, A., Burton, R.E., Busca, N.G., Caballero-Mora, K.S., Cai, B., Camin, D.V., Caramete, L., Caruso, R., Carvalho, W., Castellina, A., Catalano, O., Cataldi, G., Cazon-Boado, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J.A., Chou, A., Chye, J., Clark, P.D.J., Clay, R.W., Colombo, E., Conceiçao, R., Connolly, B., Contreras, F., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C.E., Creusot, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Daumiller, K., Dawson, B.R., de Almeida, R.M., de Donato, C., de Jong, S.J., de La Vega, G., de Mello Junior, W.J.M., de Mello Neto, J.R.T.

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Measurement of the Depth of Maximum of Extensive Air Showers above 10 18     eV by Abraham, J., Abreu, P., Aglietta, M., Ahn, E. J., Allard, D., Allekotte, I., Allen, J., Alvarez-Muñiz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Antičić, T., Anzalone, A., Aramo, C., Arganda, E., Arisaka, K., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Balzer, M., Barber, K. B., Barbosa, A. F., Barroso, S. L. C., Baughman, B., Bauleo, P., Beatty, J. J., Becker, B. R., Becker, K. H., Bellétoile, A., Bellido, J. A., BenZvi, S., Berat, C., Bergmann, T., Bertou, X., Biermann, P. L., Billoir, P., Blanch-Bigas, O., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W. C., Bruijn, R., Buchholz, P., Bueno, A., Burton, R. E., Busca, N. G., Caballero-Mora, K. S., Caramete, L., Caruso, R., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J. A., Chou, A., Chudoba, J., Clay, R. W., Colombo, E., Coluccia, M. R., Conceição, R., Contreras, F., Cook, H., Cooper, M. J., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C. E., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Daumiller, K., Dawson, B. R., de Almeida, R. M., De Domenico, M., De Donato, C., de Jong, S. J., De La Vega, G., de Mello Junior, W. J. M., de Mello Neto, J. R. T., De Mitri, I.

“…We describe the measurement of the depth of maximum, Xmax, of the longitudinal development of air showers induced by cosmic rays. Almost four thousand events…”
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Measurement of the energy spectrum of cosmic rays above 10^18 eV using the Pierre Auger Observatory by Abraham, J., Abreu, P., Aglietta, M., Ahn, E.J., Allard, D., Allekotte, I., Allen, J., Alvarez-Muniz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Anticic, T., Anzalone, A., Aramo, C., Arganda, E., Arisaka, K., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Balzer, M., Barber, K.B., Barbosa, A.F., Barroso, S.L.C., Baughman, B., Bauleo, P., Beatty, J.J., Becker, B.R., Becker, K.H., Bellétoile, A., Bellido, J.A., Benzvi, S., Berat, C., Bergmann, T., Bertou, X., Biermann, P.L., Billoir, P., Blanch-Bigas, O., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Bohacova, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W.C., Bruijn, R., Buchholz, P., Bueno, A., Burton, R.E., Busca, N.G., Caballero-Mora, K.S., Caramete, L., Caruso, R., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J.A., Chou, A., Chudoba, J., Clay, R.W., Colombo, E., Coluccia, M.R., Conceiçao, R., Contreras, F., Cook, H., Cooper, M.J., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C.E., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, Richard, Daumiller, K., Dawson, B.R., de Almeida, R.M., de Domenico, M., de Donato, C., de Jong, S.J., de La Vega, G., de Mello Junior, W.J.M., de Mello Neto, J.R.T., de Mitri, I.

“…We report a measurement of the flux of cosmic rays with unprecedented precision and statistics using the Pierre Auger Observatory. Based on fluorescence…”
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Inconsistency of the interactions between pseudoscalar, spinor and Rarita-Schwinger fields by Badagnani, D, Mariano, A, Barbero, C

“…We perform the Dirac quantization of RS fields interacting with a spinor and the first derivative of a pseudoscalar field. We achieve the calculations for two…”
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Observation of the Suppression of the Flux of Cosmic Rays above 4 × 10 19     eV by Abraham, J., Abreu, P., Aglietta, M., Aguirre, C., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez-Muñiz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Anzalone, A., Aramo, C., Argirò, S., Arisaka, K., Armengaud, E., Arneodo, F., Arqueros, F., Asch, T., Asorey, H., Assis, P., Atulugama, B. S., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Barbosa, A. F., Barnhill, D., Barroso, S. L. C., Baughman, B., Bauleo, P., Beatty, J. J., Beau, T., Becker, B. R., Becker, K. H., Bellido, J. A., BenZvi, S., Berat, C., Bergmann, T., Bernardini, P., Bertou, X., Biermann, P. L., Billoir, P., Blanch-Bigas, O., Blanco, F., Blasi, P., Bleve, C., Blümer, H., Boháčová, M., Bonifazi, C., Bonino, R., Brack, J., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Burton, R. E., Busca, N. G., Caballero-Mora, K. S., Cai, B., Camin, D. V., Caramete, L., Caruso, R., Carvalho, W., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J. A., Chou, A., Chudoba, J., Chye, J., Clark, P. D. J., Clay, R. W., Colombo, E., Conceição, R., Connolly, B., Contreras, F., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C. E., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., De Donato, C., de Jong, S. J., De La Vega, G., Junior, W. J. M. de Mello

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About consistence between pi N Delta spin-3/2 gauge couplings and electromagnetic gauge invariance by Badagnani, D, Barbero, C, Mariano, A

“…We analyze the consistence between the recently proposed "spin 3/2 gauge" interaction for the Delta resonance with nucleons and pions, and the fundamental…”
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Observation of the suppression of the flux of cosmic rays above 4x10^19 eV by Abraham, J., Abreu, P., Aglietta, M., Aguirre, C., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez-Muniz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Anzalone, A., Aramo, C., Argiro, S., Arisaka, K., Armengaud, E., Arneodo, F., Arqueros, F., Asch, T., Asorey, H., Assis, P., Atulugama, B.S., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Barbosa, A.F., Barnhill, D., Barroso, S.L.C., Baughman, B., Bauleo, P., Beatty, J.J., Beau, T., Becker, B.R., Becker, K.H., Bellido, J.A., Benzvi, S., Berat, C., Bergmann, T., Bernardini, P., Bertou, X., Biermann, P.L., Billoir, P., Blanch-Bigas, O., Blanco, F., Blasi, P., Bleve, C., Blümer, H., Bohacova, M., Bonifazi, C., Bonino, R., Brack, J., Brogueira, P., Brown, W.C., Buchholz, P., Bueno, A., Burton, R.E., Busca, N.G., Caballero-Mora, K.S., Cai, B., Camin, D.V., Caramete, L., Caruso, R., Carvalho, W., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J.A., Chou, A., Chudoba, J., Chye, J., Clark, P.D.J., Clay, R.W., Colombo, E., Conceiçao, R., Connolly, B., Contreras, F., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C.E., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Daumiller, K., Dawson, B.R., de Almeida, R.M., de Donato, C., de Jong, S.J., de La Vega, G., de Mello Junior, W.J.M.

“…The energy spectrum of cosmic rays above 2.5x10^18eV, derived from 20,000 events recorded at the Pierre Auger Observatory, is described. The spectral index…”
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Upper limit on the cosmic-ray photon flux above 1019eV using the surface detector of the Pierre Auger Observatory by Abraham, J., Abreu, P., Aglietta, M., Aguirre, C., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez-Muñiz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Anzalone, A., Aramo, C., Argirò, S., Arisaka, K., Armengaud, E., Arneodo, F., Arqueros, F., Asch, T., Asorey, H., Assis, P., Atulugama, B.S., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Barbosa, A.F., Barnhill, D., Barroso, S.L.C., Bauleo, P., Beatty, J.J., Beau, T., Becker, B.R., Becker, K.H., Bellido, J.A., BenZvi, S., Berat, C., Bergmann, T., Bernardini, P., Bertou, X., Biermann, P.L., Billoir, P., Blanch-Bigas, O., Blanco, F., Blasi, P., Bleve, C., Blümer, H., Boháčová, M., Bonifazi, C., Bonino, R., Boratav, M., Brack, J., Brogueira, P., Brown, W.C., Buchholz, P., Bueno, A., Burton, R.E., Busca, N.G., Caballero-Mora, K.S., Cai, B., Camin, D.V., Caramete, L., Caruso, R., Carvalho, W., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J.A., Chou, A., Chye, J., Clark, P.D.J., Clay, R.W., Colombo, E., Conceição, R., Connolly, B., Contreras, F., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C.E., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Daumiller, K., Dawson, B.R., de Almeida, R.M., De Donato, C., de Jong, S.J., De La Vega, G., de Mello Junior, W.J.M., de Mello Neto, J.R.T.

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Upper limit on the cosmic-ray photon flux above 10 19 eV using the surface detector of the Pierre Auger Observatory by Abreu, P., Aguirre, C., Andringa, S., Arneodo, F., Arqueros, F., Aublin, J., Ave, M., Bäcker, T., Barroso, S.L.C., Becker, K.H., Blanch-Bigas, O., Blasi, P., Bleve, C., Boháčová, M., Chye, J., Colombo, E., Contreras, F., de Almeida, R.M., de Mello Junior, W.J.M., De Mitri, I., Di Giulio, C., Diaz, J.C., D’Olivo, J.C., Dorofeev, A., DuVernois, M.A., Fauth, A.C., Filevich, A., Fleck, I., Garcia-Pinto, D., Geenen, H., Gomez Albarracin, F., Gómez Herrero, R., Gonzalez, D., Harton, J.L., Hauschildt, T., Healy, M.D., Horneffer, A., Horvat, M., Hrabovský, M., Iarlori, M., Italiano, A., Kampert, K.H., Kleinfeller, J., Knapp, J., Kuempel, D., La Rosa, G., Lachaud, C., Lago, B.L., Macolino, C., Mancarella, G., Manceñido, M.E., Mariazzi, A.G., Martínez Bravo, O., Matthews, J., Menschikov, A., Monnier Ragaigne, D., Muller, M.A., Navarra, G., Newman-Holmes, C., Newton, D., Nierstenhoefer, N., Nitz, D., Olinto, A., Ortiz, M., Pacheco, N., Parente, G., Petrov, Y., Diep, P.N., Pierog, T., Pirronello, V., Pisanti, O., Platino, M., Privitera, P., Revenu, B., Rodriguez, G., Rodríguez-Frías, M.D., Rodriguez-Cabo, I., Roulet, E., Salamida, F., Sánchez, F., Santos, E.M., Schmidt, A., Semikoz, D., Sigl, G., Smith, A.G.K., Suomijärvi, T., Swain, J., Takahashi, J., Tamburro, A., Taşcău, O., Tkaczyk, W., Travnicek, P., Tripathi, A., Valdés Galicia, J.F., Videla, M., Warner, D., Westerhoff, S., Wilczyńska, B., Yamamoto, T., Zavrtanik, D.

“…A method is developed to search for air showers initiated by photons using data recorded by the surface detector of the Auger Observatory. The approach is…”
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An upper limit to the photon fraction in cosmic rays above 10 19 eV from the Pierre Auger Observatory by Allison, P., Alvarez, C., Ambrosio, M., Arisaka, K., Arneodo, F., Asch, T., Barkhausen, M., Beatty, J., Beau, T., Bellido, J.A., Blanco, F., Blasi, P., Bleve, C., Boháčová, M., Brunet, J.M., Caballero-Mora, K.S., Cai, B., Camin, D.V., Capdevielle, J.N., Caruso, R., Cordier, A., Dang Quang, T., Darriulat, P., Dawson, B.R., de Carvalho, L.A., de Mello, W.J.M., Deligny, O., Dova, M.T., Engel, R., Erdmann, M., Etchegoyen, A., Ewers, A., Fazio, D., Fazzini, N., Filevich, A., Fokitis, E., Geenen, H., Geranios, A., Giller, M., Gobbi, F., Gomez Albarracin, F., Gonçalves do Amaral, M., Gonzalez, D., Guarino, F., Harari, D., Harton, J.L., Healy, M.D., Heck, D., Kalashev, O., Kleifges, M., Kleinfeller, J., Lachaud, C., Lago, B.L., Maldera, S., Mandat, D., Martinez, N., Martínez, J., Maurizio, D., Menshikov, A., Meyhandan, R., Mostafá, M., Muller, M.A., Nierstenhöfer, N., Nosek, D., Olinto, A., Otero, L., Palatka, M., Paul, T., Pepe, I.M., Pham Thi, T.N., Pierog, T., Prado, L., Rautenberg, J., Reucroft, S., Risi, A., Risse, M., Rizi, V., Robbins, S., Roberts, M., Ros, G., Rovero, A.C., Salamida, F., Salazar, H., Sigl, G., Swain, J., Tamashiro, A., Tonachini, A., Travnicek, P., Tunnicliffe, V., Urban, M., Valdés Galicia, J.F., Valiño, I., van den Berg, A.M., Videla, M., Voyvodic, L., Wieczorek, G., Wilczyński, H., Xu, J., Zavrtanik, M., Zepeda, A.

“…An upper limit of 16% (at 95% c.l.) is derived for the photon fraction in cosmic rays with energies greater than 10 19 eV, based on observations of the depth…”
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An upper limit to the photon fraction in cosmic rays above 1019eV from the Pierre Auger Observatory by Abraham, J., Aglietta, M., Aguirre, C., Allard, D., Allekotte, I., Allison, P., Alvarez, C., Alvarez-Muñiz, J., Ambrosio, M., Anchordoqui, L., Anjos, J.C., Aramo, C., Arisaka, K., Armengaud, E., Arneodo, F., Arqueros, F., Asch, T., Asorey, H., Atulugama, B.S., Aublin, J., Ave, M., Avila, G., Bacelar, J., Bäcker, T., Badagnani, D., Barbosa, A.F., Barbosa, H.M.J., Barkhausen, M., Barnhill, D., Barroso, S.L.C., Bauleo, P., Beatty, J., Beau, T., Becker, B.R., Becker, K.H., Bellido, J.A., BenZvi, S., Berat, C., Bergmann, T., Bernardini, P., Bertou, X., Biermann, P.L., Billoir, P., Blanch-Bigas, O., Blanco, F., Blasi, P., Bleve, C., Blümer, H., Boghrat, P., Boháčová, M., Bonifazi, C., Bonino, R., Boratav, M., Brack, J., Brunet, J.M., Buchholz, P., Busca, N.G., Caballero-Mora, K.S., Cai, B., Camin, D.V., Capdevielle, J.N., Caruso, R., Castellina, A., Cataldi, G., Cazón, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J.A., Chou, A., Chye, J., Claes, D., Clark, P.D.J., Clay, R.W., Clay, S.B., Connolly, B., Cordier, A., Cotti, U., Coutu, S., Covault, C.E., Cronin, J., Dagoret-Campagne, S., Dang Quang, T., Darriulat, P., Daumiller, K., Dawson, B.R., de Almeida, R.M., de Carvalho, L.A., De Donato, C., de Jong, S.J., de Mello, W.J.M., de Mello Neto, J.R.T., De Mitri, I., de Oliveira, M.A.L., de Souza, V., del Peral, L., Deligny, O., Della Selva, A., Delle Fratte, C., Dembinski, H.

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