Prof Subir Sarkar: Publications

IceCube

IceCube at Oxford

I am a member since 2004 of the IceCube collaboration which discovered cosmic high energy neutrinos and identified some of their astrophysical sources.

IceCube @ Oxford

The fluorescence detector of the Pierre Auger Observatory

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 620:2-3 (2010) 227-251

Authors:

J Abraham, P Abreu, M Aglietta, C Aguirre, EJ Ahn, D Allard, I Allekotte, J Allen, P Allison, J Alvarez-Muiz, M Ambrosio, L Anchordoqui, S Andringa, A Anzalone, C Aramo, E Arganda, S Argir, K Arisaka, F Arneodo, F Arqueros, T Asch, H Asorey, P Assis, J Aublin, M Ave, G Avila, A Bacher, T Bcker, D Badagnani, KB Barber, AF Barbosa, HJM Barbosa, N Barenthien, SLC Barroso, B Baughman, P Bauleo, JJ Beatty, T Beau, BR Becker, KH Becker, A Belltoile, JA Bellido, S Benzvi, C Berat, P Bernardini, X Bertou, PL Biermann, P Billoir, O Blanch-Bigas, F Blanco, C Bleve, H Blmer, M Bohov, E Bollmann, H Bolz, C Bonifazi, R Bonino, N Borodai, F Bracci, J Brack, P Brogueira, WC Brown, R Bruijn, P Buchholz, A Bueno, RE Burton, NG Busca, KS Caballero-Mora, D Camin, L Caramete, R Caruso, W Carvalho, A Castellina, J Castro, O Catalano, L Cazon, R Cester, J Chauvin, A Chiavassa, JA Chinellato, A Chou, J Chudoba, J Chye, PDJ Clark, RW Clay, E Colombo, R Conceio, B Connolly, F Contreras, J Coppens, A Cordero, A Cordier, U Cotti, S Coutu, CE Covault, A Creusot, A Criss, JW Cronin, J Cuautle, A Curutiu

Abstract:

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 together with a fluorescence detector to measure the development of air showers in the atmosphere above the array. The fluorescence detector comprises 24 large telescopes specialized for measuring the nitrogen fluorescence caused by charged particles of cosmic ray air showers. In this paper we describe the components of the fluorescence detector including its optical system, the design of the camera, the electronics, and the systems for relative and absolute calibration. We also discuss the operation and the monitoring of the detector. Finally, we evaluate the detector performance and precision of shower reconstructions. © 2010 Elsevier B.V. All rights reserved.

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Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter

Astroparticle Physics 34:5 (2010) 314-326

Authors:

P Abreu, M Aglietta, EJ Ahn, D Allard, I Allekotte, J Allen, J Alvarez Castillo, J Alvarez-Muñiz, M Ambrosio, A Aminaei, L Anchordoqui, S Andringa, T Antičić, A Anzalone, C Aramo, E Arganda, K Arisaka, F Arqueros, H Asorey, P Assis, J Aublin, M Ave, M Avenier, G Avila, T Bäcker, D Badagnani, M Balzer, KB Barber, AF Barbosa, R Bardenet, SLC Barroso, B Baughman, JJ Beatty, BR Becker, KH Becker, A Bellétoile, JA Bellido, C Berat, T Bergmann, X Bertou, PL Biermann, P Billoir, F Blanco, M Blanco, C Bleve, H Blümer, M Boháčová, D Boncioli, C Bonifazi, R Bonino, N Borodai, J Brack, P Brogueira, WC Brown, R Bruijn, P Buchholz, A Bueno, RE Burton, NG Busca, KS Caballero-Mora, L Caramete, R Caruso, A Castellina, O Catalano, G Cataldi, L Cazon, R Cester, J Chauvin, A Chiavassa, JA Chinellato, A Chou, J Chudoba, RW Clay, E Colombo, MR Coluccia, R Conceião, F Contreras, H Cook, MJ Cooper, J Coppens, A Cordier, U Cotti, S Coutu, CE Covault, A Creusot, A Criss, J Cronin, A Curutiu, S Dagoret-Campagne, R Dallier, S Dasso, K Daumiller, BR Dawson, RM De Almeida, M De Domenico, C De Donato, SJ De Jong, G De La Vega, WJM De Mello Junior, JRT De Mello Neto

Abstract:

Data collected by the Pierre Auger Observatory through 31 August 2007 showed evidence for anisotropy in the arrival directions of cosmic rays above the Greisen-Zatsepin-Kuz'min energy threshold, 6 × 10¹⁹ eV. The anisotropy was measured by the fraction of arrival directions that are less than 3.1° from the position of an active galactic nucleus within 75 Mpc (using the Véron-Cetty and Véron 12th catalog). An updated measurement of this fraction is reported here using the arrival directions of cosmic rays recorded above the same energy threshold through 31 December 2009. The number of arrival directions has increased from 27 to 69, allowing a more precise measurement. The correlating fraction is 38-6+7%, compared with 21% expected for isotropic cosmic rays. This is down from the early estimate of 69-13+11%. The enlarged set of arrival directions is examined also in relation to other populations of nearby extragalactic objects: galaxies in the 2 Microns All Sky Survey and active galactic nuclei detected in hard X-rays by the Swift Burst Alert Telescope. A celestial region around the position of the radiogalaxy Cen A has the largest excess of arrival directions relative to isotropic expectations. The 2-point autocorrelation function is shown for the enlarged set of arrival directions and compared to the isotropic expectation. © 2010 Elsevier B.V. All rights reserved.

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Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory (vol 32, pg 89, 2009)

ASTROPARTICLE PHYSICS 33:1 (2010) 65-67

Authors:

J Abraham, P Abreu, M Aglietta, C Aguirre, EJ Ahn, D Allard, I Allekotte, J Allen, P Allison, J Alvarez-Muniz, M Ambrosio, L Anchordoqui, S Andringa, A Anzalone, C Aramo, E Arganda, S Argiro, K Arisaka, F Arneodo, F Arqueros, T Asch, H Asorey, P Assis, J Aublin, M Ave, G Avila, T Baecker, D Badagnani, KB Barber, AF Barbosa, SLC Barroso, B Baughman, P Bauleo, JJ Beatty, T Beau, BR Becker, KH Becker, A Belletoile, JA Bellido, S BenZvi, C Berat, P Bernardini, X Bertou, PL Biermann, P Billoir, O Blanch-Bigas, F Blanco, C Bleve, H Bluemer, M Bohacova, C Bonifazi, R Bonino, N Borodai, J Brack, P Brogueira, WC Brown, R Bruijn, P Buchholz, A Bueno, RE Burton, NG Busca, KS Caballero-Mora, L Caramete, R Caruso, W Carvalho, A Castellina, O Catalano, L Cazon, R Cester, J Chauvin, A Chiavassa, JA Chinellato, A Chou, J Chudoba, J Chye, RW Clay, E Colombo, R Conceicao, B Connolly, F Contreras, J Coppens, A Cordier, U Cotti, S Coutu, CE Covault, A Creusot, A Criss, J Cronin, A Curutiu, S Dagoret-Campagne, R Dallier, K Daumiller, BR Dawson, RM de Almeida, M De Domenico, C De Donato, SJ de Jong, G De La Vega, Mello WJM Jr de, JRT de Mello Neto, I De Mitri, V de Souza, KD de Vries, G Decerprit, L del Peral, O Deligny, A Della Selva, C Delle Fratte, H Dembinski, C Di Giulio, JC Diaz, PN Diep, C Dobrigkeit, JC D'Olivo, PN Dong, D Dornic, A Dorofeev, JC dos Anjos, MT Dova, D D'Urso, I Dutan, MA DuVernois, R Engel, M Erdmann, CO Escobar, A Etchegoyen, P Facal San Luis, H Falcke, G Farrar, AC Fauth, N Fazzini, F Ferrer, A Ferrero, B Fick, A Filevich, A Filipcic, I Fleck, S Fliescher, CE Fracchiolla, ED Fraenkel, W Fulgione, RF Gamarra, S Gambetta, B Garcia, D Garcia Gamez, D Garcia-Pinto, X Garrido, G Gelmini, H Gemmeke, PL Ghia, U Giaccari, M Giller, H Glass, LM Goggin, MS Gold, G Golup, F Gomez Albarracin, M Gomez Berisso, P Goncalves, M Goncalves do Amaral, D Gonzalez, JG Gonzalez, D Gora, A Gorgi, P Gouffon, E Grashorn, S Grebe, M Grigat, AF Grillo, Y Guardincerri, F Guarino, GP Guedes, J Gutierrez, JD Hague, V Halenka, P Hansen, D Harari, S Harmsma, JL Harton, A Haungs, MD Healy, T Hebbeker, G Hebrero, D Heck, C Hojvat, VC Holmes, P Homola, JR Horandel, A Horneffer, M Hrabovsky, T Huege, M Hussain, M Iarlori, A Insolia, F Ionita, A Italiano, S Jiraskova, M Kaducak, KH Kampert, T Karova, P Kasper, B Kegl, B Keilhauer, E Kemp, RM Kieckhafer, HO Klages, M Kleifges, J Kleinfeller, R Knapik, J Knapp, D-H Koang, A Krieger, O Kroemer, D Kruppke-Hansen, D Kuempel, N Kunka, A Kusenko, G La Rosa, C Lachaud, BL Lago, P Lautridou, MSAB Leao, D Lebrun, P Lebrun, J Lee, MA Leigui de Oliveira, A Lemiere, A Letessier-Selvon, M Leuthold, I Lhenry-Yvon, R Lopez, A Lopez Agueera, K Louedec, J Lozano Bahilo, A Lucero, R Luna Garcia, H Lyberis, MC Maccarone, C Macolino, S Maldera, D Mandat, P Mantsch, AG Mariazzi, IC Maris, HR Marquez Falcon, D Martello, J Martinez, O Martinez Bravo, HJ Mathes, J Matthews, JAJ Matthews, G Matthiae, D Maurizio, PO Mazur, M McEwen, RR McNeil, G Medina-Tanco, M Melissas, D Melo, E Menichetti, A Menshikov, R Meyhandan, MI Micheletti, G Miele, W Miller, L Miramonti, S Mollerach, M Monasor, D Monnier Ragaigne, F Montanet, B Morales, C Morello, JC Moreno, C Morris, M Mostafa, CA Moura, S Mueller, MA Muller, R Mussa, G Navarra, JL Navarro, S Navas, P Necesal, L Nellen, C Newman-Holmes, D Newton, PT Nhung, N Nierstenhoefer, D Nitz, D Nosek, L Nozka, M Nyklicek, J Oehischlaeger, A Olinto, P Oliva, VM Olmos-Gilbaja, M Ortiz, F Ortolani, N Pacheco, D Pakk Selmi-Dei, M Palatka, J Pallotta, G Parente, E Parizot, S Parlati, S Pastor, M Patel, T Paul, V Pavlidou, K Payet, M Pech, J Pekala, R Pelayo, IM Pepe, L Perrone, R Pesce, E Petermann, S Petrera, P Petrinca, A Petrolini, Y Petrov, J Petrovic, C Pfendner, R Piegaia, T Pierog, M Pimenta, T Pinto, V Pirrpnello, O Pisanti, M Platino, J Pochon, VH Ponce, M Pontz, P Privitera, M Prouza, EJ Quel, J Rautenberg, O Ravel, D Ravignani, A Redondo, S Reucroft, B Revenu, FAS Rezende, J Ridky, S Riggi, M Risse, C Riviere, V Rizzi, C Robledo, G Rodriguez, J Rodriguez Martino, J Rodriguez Rojo, I Rodriguez-Cabo, MD Rodriguez-Frias, G Ros, J Rosado, T Rossler, M Roth, A Rouille-d'Orfeuil, E Roulet, AC Rovero, F Salamida, H Salazar, G Salina, F Sanchez, M Santander, CE Santo, EM Santos, F Sarazin, S Sarkar, R Sato, N Scharf, V Scherini, H Schieler, P Schiffer, A Schmidt, F Schmidt, T Schmidt, O Scholten, H Schoorlemmer, J Schovancova, P Schovanek, F Schroeder, S Schulte, F Schuessler, D Schuster, SJ Sciutto, M Scuderi, A Segreto, D Semikoz, M Settimo, RC Shellard, I Sidelnik, BB Siffert, A Smialkowski, R Smida, BE Smith, GR Snow, P Sommers, J Sorokin, H Spinka, R Squartini, E Strazzeri, A Stutz, F Suarez, T Suomijaervi, AD Supanitsky, MS Sutherland, J Swain, Z Szadowski, A Tamashiro, A Tamburro, T Tarutina, O Tascau, R Tcaciuc, D Tcherniakhovski, NT Thao, D Thomas, R Ticona, J Tiffenberg, C Timmermans, W Tkaczyk, CJ Todero Peixoto, B Tome, A Tonachini, I Torres, P Travnicek, DB Tridapalli, G Tristram, E Trovato, V Tuci, M Tueros, R Ulrich, M Unger, M Urban, JF Valdes Galicia, I Valino, L Valore, AM van den Berg, JR Vazquez, RA Vazquez, D Veberic, A Velarde, T Venters, V Verzi, M Videla, L Villasenor, S Vorobiov, L Voyvodic, H Wahlberg, P Wahrlich, O Wainberg, D Warner, AA Watson, S Westerhoff, BJ Whelan, G Wieczorek, L Wiencke, B Wilczyn'ska, H Wilczyn'ski, C Wileman, MG Winnick, H Wu, B Wundheiler, T Yamamoto, P Younk, G Yuan, E Zas, D Zavrtanik, M Zavrtanik, I Zaw, A Zepeda, M Ziolkowski

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Light asymmetric dark matter

Axions, WIMPs and WISPs. Proceedings, 6th Patras Workshop, PATRAS 2010, Zurich, Switzerland, July 5-9, 2010 (2010) 150-155

Authors:

Mads T Frandsen, Subir Sarkar

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REVIEW OF PARTICLE PHYSICS

37:7A (2010) ARTN 075021

Authors:

K Nakamura, K Hagiwara, K Hikasa, H Murayama, M Tanabashi, T Watari, C Amsler, M Antonelli, DM Asner, H Baer, HR Band, RM Barnett, T Basaglia, E Bergren, J Beringer, G Bernardi, W Bertl, H Bichsel, O Biebel, E Blucher, S Blusk, RN Cahn, M Carena, A Ceccucci, D Chakraborty, M-C Chen, RS Chivukula, G Cowan, O Dahl, G D'Ambrosio, T Damour, D de Florian, A de Gouvea, T DeGrand, G Dissertori, B Dobrescu, M Doser, M Drees, DA Edwards, S Eidelman, J Erler, VV Ezhela, W Fetscher, BD Fields, B Foster, TK Gaisser, L Garren, H-J Gerber, G Gerbier, T Gherghetta, CF Giudice, S Golwala, M Goodman, C Grab, AV Gritsan, J-F Grivaz, DE Groom, M Grunewald, A Gurtu, T Gutsche, HE Haber, C Hagmann, KG Hayes, M Heffner, B Heltsley, JJ Hernandez-Rey, A Hoecker, J Holder, J Huston, JD Jackson, KF Johnson, T Junk, A Karle, D Karlen, B Kayser, D Kirkby, SR Klein, C Kolda, RV Kowalewski, B Krusche, Yu V Kuyanov, Y Kwon, O Lahav, P Langacker, A Liddle, Z Ligeti, C-J Lin, TM Liss, L Littenberg, KS Lugovsky, SB Lugovsky, J Lys, H Mahlke, T Mannel, AV Manohar, WJ Marciano, AD Martin, A Masoni, D Milstead, R Miquel, K Moenig, M Narain, P Nason, S Navas, P Nevski, Y Nir, KA Olive, L Pape, C Patrignani, JA Peacock, ST Petcov, A Piepke, G Punzi, A Quadt, S Raby, G Raffelt, BN Ratcliff, P Richardson, S Roesler, S Rolli, A Romaniouk, LJ Rosenberg, JL Rosner, CT Sachrajda, Y Sakai, GP Salam, S Sarkar, F Sauli, O Schneider, K Scholberg, D Scott, WG Seligman, MH Shaevitz, M Silari, T Sjostrand, JG Smith, GF Smoot, S Spanier, H Spieler, A Stahl, T Stanev, SL Stone, T Sumiyoshi, MJ Syphers, J Terning, M Titov, NP Tkachenko, NA Tornqvist, D Tovey, TG Trippe, G Valencia, K van Bibber, G Venanzoni, MG Vincter, P Vogel, A Vogt, W Walkowiak, CW Walter, DR Ward, BR Webber, G Weiglein, EJ Weinberg, JD Wells, A Wheeler, LR Wiencke, CG Wohl, L Wolfenstein, J Womersley, CL Woody, RL Workman, A Yamamoto, W-M Yao, OV Zenin, J Zhang, R-Y Zhu, PA Zyla, G Harper, VS Lugovsky, P Schaffner

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Prof Subir Sarkar

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IceCube

IceCube at Oxford

The fluorescence detector of the Pierre Auger Observatory

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Abstract:

Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter

Authors:

Abstract:

Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory (vol 32, pg 89, 2009)

Authors:

Light asymmetric dark matter

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REVIEW OF PARTICLE PHYSICS

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Prof Subir Sarkar

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IceCube

IceCube at Oxford

The fluorescence detector of the Pierre Auger Observatory

Authors:

Abstract:

Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter

Authors:

Abstract:

Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory (vol 32, pg 89, 2009)

Authors:

Light asymmetric dark matter

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REVIEW OF PARTICLE PHYSICS

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