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Search Results: 1 - 10 of 297482 matches for " J. Cotzomi "
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Air shower array at the university of Puebla for the study of cosmic rays
J. Cotzomi,O. Martínez,E. Moreno,H. Salazar
Revista mexicana de física , 2005,
Abstract: Se describe el dise o y la operación de un arreglo de detectores de cascadas de rayos cósmicos construido en el campus de la Universidad Autónoma de Puebla (localizado a 19 N, 90 W, 800 g/cm2) para medir la energía y dirección de llegada de rayos cósmicos primarios con energías alrededor de 1015 eV, conocida como "la rodilla" del espectro de rayos cósmicos. El arreglo consiste en 18 detectores de centellador líquido (12 en la primera etapa) y 3 detectores Cherenkov de agua (uno de sección transversal de 10 m2 y dos más peque os de 1.86 m2 de sección transversal), distribuidos en una red cuadrada con 20 m de espacio entre los detectores sobre una área de 4000 m2. En este artículo se discute la calibración y estabilidad de operación del arreglo y se reporta sobre las mediciones preliminares de las direcciones de llegada y de las energías de cascadas de rayos cósmicos observadas con la primera etapa del arreglo que consiste en 12 detectores de centellador líquido y 3 detectores Cherenkov de agua. Los resultados obtenidos indican que el arreglo es eficiente en la observación indirecta de rayos cósmicos primarios con energías dentro del intervalo de 1014 a 1016 eV con una resolución angular menor a 5.5 para ángulos zenitales en el rango de 20 a 60 . También se discute la capacidad de los tanques Cherenkov de agua para hacer posible una separación de las componentes electromagnética y muónica de las cascadas de rayos cósmicos. Las instalaciones de este arreglo se usan también para entrenar estudiantes interesados en el área de los rayos cósmicos.
On the sensitivity of the HAWC observatory to gamma-ray bursts
HAWC collaboration,A. U. Abeysekara,J. A. Aguilar,S. Aguilar,R. Alfaro,E. Almaraz,C. álvarez,J. de D. álvarez-Romero,M. álvarez,R. Arceo,J. C. Arteaga-Velázquez,C. Badillo,A. Barber,B. M. Baughman,N. Bautista-Elivar,E. Belmont,E. Benítez,S. Y. BenZvi,D. Berley,A. Bernal,E. Bonamente,J. Braun,R. Caballero-Lopez,I. Cabrera,A. Carrami?ana,L. Carrasco,M. Castillo,L. Chambers,R. Conde,P. Condreay,U. Cotti,J. Cotzomi,J. C. D'Olivo,E. de la Fuente,C. De León,S. Delay,D. Delepine,T. DeYoung,L. Diaz,L. Diaz-Cruz,B. L. Dingus,M. A. Duvernois,D. Edmunds,R. W. Ellsworth,B. Fick,D. W. Fiorino,A. Flandes,N. I. Fraija,A. Galindo,J. L. García-Luna,G. García-Torales,F. Garfias,L. X. González,M. M. González,J. A. Goodman,V. Grabski,M. Gussert,C. Guzmán-Ceron,Z. Hampel-Arias,T. Harris,E. Hays,L. Hernandez-Cervantes,P. H. Hüntemeyer,A. Imran,A. Iriarte,J. J. Jimenez,P. Karn,N. Kelley-Hoskins,D. Kieda,R. Langarica,A. Lara,R. Lauer,W. H. Lee,E. C. Linares,J. T. Linnemann,M. Longo,R. Luna-García,H. Martínez,J. Martínez,L. A. Martínez,O. Martínez,J. Martínez-Castro,M. Martos,J. Matthews,J. E. McEnery,G. Medina-Tanco,J. E. Mendoza-Torres,P. A. Miranda-Romagnoli,T. Montaruli,E. Moreno,M. Mostafa,M. Napsuciale,J. Nava,L. Nellen,M. Newbold,R. Noriega-Papaqui,T. Oceguera-Becerra,A. Olmos Tapia,V. Orozco,V. Pérez,E. G. Pérez-Pérez,J. S. Perkins,J. Pretz,C. Ramirez,I. Ramírez,D. Rebello,A. Rentería,J. Reyes,D. Rosa-González,A. Rosado,J. M. Ryan,J. R. Sacahui,H. Salazar,F. Salesa,A. Sandoval,E. Santos
Physics , 2011, DOI: 10.1016/j.astropartphys.2012.02.001
Abstract: We present the sensitivity of HAWC to Gamma Ray Bursts (GRBs). HAWC is a very high-energy gamma-ray observatory currently under construction in Mexico at an altitude of 4100 m. It will observe atmospheric air showers via the water Cherenkov method. HAWC will consist of 300 large water tanks instrumented with 4 photomultipliers each. HAWC has two data acquisition (DAQ) systems. The main DAQ system reads out coincident signals in the tanks and reconstructs the direction and energy of individual atmospheric showers. The scaler DAQ counts the hits in each photomultiplier tube (PMT) in the detector and searches for a statistical excess over the noise of all PMTs. We show that HAWC has a realistic opportunity to observe the high-energy power law components of GRBs that extend at least up to 30 GeV, as it has been observed by Fermi LAT. The two DAQ systems have an energy threshold that is low enough to observe events similar to GRB 090510 and GRB 090902b with the characteristics observed by Fermi LAT. HAWC will provide information about the high-energy spectra of GRBs which in turn could help to understanding about e-pair attenuation in GRB jets, extragalactic background light absorption, as well as establishing the highest energy to which GRBs accelerate particles.
HAWC Contributions to the 34th International Cosmic Ray Conference (ICRC2015)
HAWC Collaboration,A. U. Abeysekara,R. Alfaro,C. Alvarez,J. D. álvarez,R. Arceo,J. C. Arteaga-Velázquez,H. A. Ayala Solares,A. S. Barber,B. M. Baughman,N. Bautista-Elivar,J. Becerra Gonzalez,A. Becerril,E. Belmont,S. Y. BenZvi,D. Berley,A. Bernal,J. Braun,K. S. Caballero-Mora,T. Capistrán,A. Carrami?ana,M. Castillo,U. Cotti,J. Cotzomi,S. Couti?o de León,E. de la Fuente,C. De León,T. DeYoung,R. Diaz Hernandez,L. Diaz-Cruz,J. C. Díaz-Vélez,B. L. Dingus,M. A. DuVernois,R. W. Ellsworth,K. Engel,O. Enriquez-Rivera,B. Fick,D. W. Fiorino,J. L. Flores,N. Fraija,G. Garcia-Torales,F. Garfias,M. M. González,J. A. Goodman,M. Gussert,Z. Hampel-Arias,P. Hansen,J. Patrick Harding,S. Hernandez,C. M. Hui,P. Hüntemeyer,A. Imran,A. Iriarte,P. Karn,D. Kieda,G. J. Kunde,A. Lara,R. J. Lauer,W. H. Lee,D. Lennarz,H. León Vargas,J. T. Linnemann,M. Longo Proper,G. Luis Raya,R. Luna-García,K. Malone,A. Marinelli,S. S. Marinelli,H. Martinez,O. Martinez,J. Martínez-Castro,J. A. J. Matthews,J. McEnery,P. Miranda-Romagnoli,E. Moreno,M. Mostafá,L. Nellen,M. Newbold,M. Un Nisa,R. Noriega-Papaqui,T. Oceguera-Becerra,B. Patricelli,R. Pelayo,E. G. Pérez-Pérez,J. Pretz,Z. Ren,C. D. Rho,C. Rivière,D. Rosa-González,J. Ryan,H. Salazar,F. Salesa Greus,A. Sandoval,M. Schneider,G. Sinnis,A. J. Smith,A. W. Smith,K. Sparks Woodle,R. W. Springer,I. Taboada,O. Tibolla,P. A. Toale,K. Tollefson,I. Torres,T. N. Ukwatta,L. Villase?or,T. Weisgarber,S. Westerhoff,I. G. Wisher,J. Wood,T. Yapici,G. B. Yodh,P. W. Younk,A. Zepeda
Physics , 2015,
Abstract: List of proceedings from the HAWC Collaboration presented at the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The Netherlands.
The Sensitivity of HAWC to High-Mass Dark Matter Annihilations
A. U. Abeysekara,R. Alfaro,C. Alvarez,J. D. Alvarez,R. Arceo,J. C. Arteaga-Velazquez,H. A. Ayala Solares,A. S. Barber,B. M. Baughman,N. Bautista-Elivar,J. Becerra Gonzalez,E. Belmont,S. Y. BenZvi,D. Berley,M. Bonilla Rosales,J. Braun,R. A. Caballero-Lopez,K. S. Caballero-Mora,A. Carraminana,M. Castillo,U. Cotti,J. Cotzomi,E. de la Fuente,C. De Leon,T. DeYoung,R. Diaz Hernandez,L. Diaz-Cruz,J. C. Diaz-Velez,B. L. Dingus,M. A. DuVernois,R. W. Ellsworth,S. F. E.,D. W. Fiorino,N. Fraija,A. Galindo,F. Garfias,M. M. Gonzalez,J. A. Goodman,V. Grabski,M. Gussert,Z. Hampel-Arias,J. P. Harding,C. M. Hui,P. Huentemeyer,A. Imran,A. Iriarte,P. Karn,D. Kieda,G. J. Kunde,A. Lara,R. J. Lauer,W. H. Lee,D. Lennarz,H. Leon Vargas,E. C. Linares,J. T. Linnemann,M. Longo,R. Luna-Garcia,A. Marinelli,H. Martinez,O. Martinez,J. Martinez-Castro,J. A. J. Matthews,J. McEnery,E. Mendoza Torres,P. Miranda-Romagnoli,E. Moreno,M. Mostafa,L. Nellen,M. Newbold,R. Noriega-Papaqui,T. Oceguera-Becerra,B. Patricelli,R. Pelayo,E. G. Perez-Perez,J. Pretz,C. Riviere,D. Rosa-Gonzalez,J. Ryan,H. Salazar,F. Salesa,A. Sandoval,M. Schneider,S. Silich,G. Sinnis,A. J. Smith,K. Sparks Woodle,R. W. Springer,I. Taboada,P. A. Toale,K. Tollefson,I. Torres,T. N. Ukwatta,L. Villasenor,T. Weisgarber,S. Westerhoff,I. G. Wisher,J. Wood,G. B. Yodh,P. W. Younk,D. Zaborov,A. Zepeda,H. Zhou,K. N. Abazajian
Physics , 2014, DOI: 10.1103/PhysRevD.90.122002
Abstract: The High Altitude Water Cherenkov (HAWC) observatory is a wide field-of-view detector sensitive to gamma rays of 100 GeV to a few hundred TeV. Located in central Mexico at 19 degrees North latitude and 4100 m above sea level, HAWC will observe gamma rays and cosmic rays with an array of water Cherenkov detectors. The full HAWC array is scheduled to be operational in Spring 2015. In this paper, we study the HAWC sensitivity to the gamma-ray signatures of high-mass (multi- TeV) dark matter annihilation. The HAWC observatory will be sensitive to diverse searches for dark matter annihilation, including annihilation from extended dark matter sources, the diffuse gamma-ray emission from dark matter annihilation, and gamma-ray emission from non-luminous dark matter subhalos. Here we consider the HAWC sensitivity to a subset of these sources, including dwarf galaxies, the M31 galaxy, the Virgo cluster, and the Galactic center. We simulate the HAWC response to gamma rays from these sources in several well-motivated dark matter annihilation channels. If no gamma-ray excess is observed, we show the limits HAWC can place on the dark matter cross-section from these sources. In particular, in the case of dark matter annihilation into gauge bosons, HAWC will be able to detect a narrow range of dark matter masses to cross-sections below thermal. HAWC should also be sensitive to non-thermal cross-sections for masses up to nearly 1000 TeV. The constraints placed by HAWC on the dark matter cross-section from known sources should be competitive with current limits in the mass range where HAWC has similar sensitivity. HAWC can additionally explore higher dark matter masses than are currently constrained.
Milagro Limits and HAWC Sensitivity for the Rate-Density of Evaporating Primordial Black Holes
A. A. Abdo,A. U. Abeysekara,R. Alfaro,B. T. Allen,C. Alvarez,J. D. álvarez,R. Arceo,J. C. Arteaga-Velázquez,T. Aune,H. A. Ayala Solares,A. S. Barber,B. M. Baughman,N. Bautista-Elivar,J. Becerra Gonzalez,E. Belmont,S. Y. BenZvi,D. Berley,M. Bonilla Rosales,J. Braun,R. A. Caballero-Lopez,K. S. Caballero-Mora,A. Carrami?ana,M. Castillo,C. Chen,G. E. Christopher,U. Cotti,J. Cotzomi,E. de la Fuente,C. De León,T. DeYoung,R. Diaz Hernandez,L. Diaz-Cruz,J. C. Díaz-Vélez,B. L. Dingus,M. A. DuVernois,R. W. Ellsworth,D. W. Fiorino,N. Fraija,A. Galindo,F. Garfias,M. M. González,J. A. Goodman,V. Grabski,M. Gussert,Z. Hampel-Arias,J. P. Harding,E. Hays,C. M. Hoffman,C. M. Hui,P. Hüntemeyer,A. Imran,A. Iriarte,P. Karn,D. Kieda,B. E. Kolterman,G. J. Kunde,A. Lara,R. J. Lauer,W. H. Lee,D. Lennarz,H. León Vargas,E. C. Linares,J. T. Linnemann,M. Longo,R. Luna-GarcIa,J. H. MacGibbon,A. Marinelli,S. S. Marinelli,H. Martinez,O. Martinez,J. Martínez-Castro,J. A. J. Matthews,J. McEnery,E. Mendoza Torres,A. I. Mincer,P. Miranda-Romagnoli,E. Moreno,T. Morgan,M. Mostafá,L. Nellen,P. Nemethy,M. Newbold,R. Noriega-Papaqui,T. Oceguera-Becerra,B. Patricelli,R. Pelayo,E. G. Pérez-Pérez,J. Pretz,C. Rivière,D. Rosa-González,J. Ryan,H. Salazar,F. Salesa,A. Sandoval,P. M. Saz Parkinson,M. Schneider,A. Shoup,S. Silich,G. Sinnis,A. J. Smith,D. Stump,K. Sparks Woodle,R. W. Springer,I. Taboada,P. A. Toale,K. Tollefson,I. Torres,T. N. Ukwatta,V. Vasileiou,L. Villase?or,G. P. Walker,T. Weisgarber,S. Westerhoff
Physics , 2014, DOI: 10.1016/j.astropartphys.2014.10.007
Abstract: Primordial Black Holes (PBHs) are gravitationally collapsed objects that may have been created by density fluctuations in the early universe and could have arbitrarily small masses down to the Planck scale. Hawking showed that due to quantum effects, a black hole has a temperature inversely proportional to its mass and will emit all species of fundamental particles thermally. PBHs with initial masses of ~5.0 x 10^14 g should be expiring in the present epoch with bursts of high-energy particles, including gamma radiation in the GeV - TeV energy range. The Milagro high energy observatory, which operated from 2000 to 2008, is sensitive to the high end of the PBH evaporation gamma-ray spectrum. Due to its large field-of-view, more than 90% duty cycle and sensitivity up to 100 TeV gamma rays, the Milagro observatory is well suited to perform a search for PBH bursts. Based on a search on the Milagro data, we report new PBH burst rate density upper limits over a range of PBH observation times. In addition, we report the sensitivity of the Milagro successor, the High Altitude Water Cherenkov (HAWC) observatory, to PBH evaporation events.
Observation of Small-scale Anisotropy in the Arrival Direction Distribution of TeV Cosmic Rays with HAWC
A. U. Abeysekara,R. Alfaro,C. Alvarez,J. D. álvarez,R. Arceo,J. C. Arteaga-Velázquez,H. A. Ayala Solares,A. S. Barber,B. M. Baughman,N. Bautista-Elivar,E. Belmont,S. Y. BenZvi,D. Berley,M. Bonilla Rosales,J. Braun,K. S. Caballero-Mora,A. Carrami?ana,M. Castillo,U. Cotti,J. Cotzomi,E. de la Fuente,C. De León,T. DeYoung,R. Diaz Hernandez,J. C. Díaz-Vélez,B. L. Dingus,M. A. DuVernois,R. W. Ellsworth,D. W. Fiorino,N. Fraija,A. Galindo,F. Garfias,M. M. González,J. A. Goodman,M. Gussert,Z. Hampel-Arias,J. P. Harding,P. Hüntemeyer,C. M. Hui,A. Imran,A. Iriarte,P. Karn,D. Kieda,G. J. Kunde,A. Lara,R. J. Lauer,W. H. Lee,D. Lennarz,H. León Vargas,J. T. Linnemann,M. Longo,R. Luna-García,K. Malone,A. Marinelli,S. S. Marinelli,H. Martinez,O. Martinez,J. Martínez-Castro,J. A. J. Matthews,J. McEnery,E. Mendoza Torres,P. Miranda-Romagnoli,E. Moreno,M. Mostafá,L. Nellen,M. Newbold,R. Noriega-Papaqui,T. Oceguera-Becerra,B. Patricelli,R. Pelayo,E. G. Pérez-Pérez,J. Pretz,C. Rivière,D. Rosa-González,E. Ruiz-Velasco,J. Ryan,H. Salazar,F. Salesa Greus,A. Sandoval,M. Schneider,G. Sinnis,A. J. Smith,K. Sparks Woodle,R. W. Springer,I. Taboada,P. A. Toale,K. Tollefson,I. Torres,T. N. Ukwatta,L. Villase?or,T. Weisgarber,S. Westerhoff,I. G. Wisher,J. Wood,G. B. Yodh,P. W. Younk,D. Zaborov,A. Zepeda,H. Zhou
Physics , 2014, DOI: 10.1088/0004-637X/796/2/108
Abstract: The High-Altitude Water Cherenkov (HAWC) Observatory is sensitive to gamma rays and charged cosmic rays at TeV energies. The detector is still under construction, but data acquisition with the partially deployed detector started in 2013. An analysis of the cosmic-ray arrival direction distribution based on $4.9\times 10^{10}$ events recorded between June 2013 and February 2014 shows anisotropy at the $10^{-4}$ level on angular scales of about $10^\circ$. The HAWC cosmic-ray sky map exhibits three regions of significantly enhanced cosmic-ray flux; two of these regions were first reported by the Milagro experiment. A third region coincides with an excess recently reported by the ARGO-YBJ experiment. An angular power spectrum analysis of the sky shows that all terms up to $\ell=15$ contribute significantly to the excesses.
Sensitivity of the High Altitude Water Cherenkov Detector to Sources of Multi-TeV Gamma Rays
A. U. Abeysekara,R. Alfaro,C. Alvarez,J. D. álvarez,R. Arceo,J. C. Arteaga-Velázquez,H. A. Ayala Solares,A. S. Barber,B. M. Baughman,N. Bautista-Elivar,E. Belmont,S. Y. BenZvi,D. Berley,M. Bonilla Rosales,J. Braun,R. A. Caballero-Lopez,A. Carrami?ana,M. Castillo,U. Cotti,J. Cotzomi,E. de la Fuente,C. De León,T. DeYoung,R. Diaz Hernandez,J. C. Diaz-Velez,B. L. Dingus,M. A. DuVernois,R. W. Ellsworth,A. Fernandez,D. W. Fiorino,N. Fraija,A. Galindo,J. L. Garcia-Luna,G. Garcia-Torales,F. Garfias,L. X. González,M. M. González,J. A. Goodman,V. Grabski,M. Gussert,Z. Hampel-Arias,C. M. Hui,P. Hüntemeyer,A. Imran,A. Iriarte,P. Karn,D. Kieda,G. J. Kunde,A. Lara,R. J. Lauer,W. H. Lee,D. Lennarz,H. León Vargas,E. C. Linares,J. T. Linnemann,M. Longo,R. Luna-Garc\'\ia,A. Marinelli,O. Martinez,J. Mart\'\inez-Castro,J. A. J. Matthews,P. Miranda-Romagnoli,E. Moreno,M. Mostafá,J. Nava,L. Nellen,M. Newbold,R. Noriega-Papaqui,T. Oceguera-Becerra,B. Patricelli,R. Pelayo,E. G. Pérez-Pérez,J. Pretz,C. Rivière,D. Rosa-González,H. Salazar,F. Salesa,A. Sandoval,E. Santos,M. Schneider,S. Silich,G. Sinnis,A. J. Smith,K. Sparks,R. W. Springer,I. Taboada,P. A. Toale,K. Tollefson,I. Torres,T. N. Ukwatta,L. Villase?or,T. Weisgarber,S. Westerhoff,I. G. Wisher,J. Wood,G. B. Yodh,P. W. Younk,D. Zaborov,A. Zepeda,H. Zhou
Physics , 2013, DOI: 10.1016/j.astropartphys.2013.08.002
Abstract: The High Altitude Water Cherenkov (HAWC) observatory is an array of large water Cherenkov detectors sensitive to gamma rays and hadronic cosmic rays in the energy band between 100 GeV and 100 TeV. The observatory will be used to measure high-energy protons and cosmic rays via detection of the energetic secondary particles reaching the ground when one of these particles interacts in the atmosphere above the detector. HAWC is under construction at a site 4100 meters above sea level on the northern slope of the volcano Sierra Negra, which is located in central Mexico at 19 degrees N latitude. It is scheduled for completion in 2014. In this paper we estimate the sensitivity of the HAWC instrument to point-like and extended sources of gamma rays. The source fluxes are modeled using both unbroken power laws and power laws with exponential cutoffs. HAWC, in one year, is sensitive to point sources with integral power-law spectra as low as 5x10^-13 cm^-2 sec^-1 above 2 TeV (approximately 50 mCrab) over 5 sr of the sky. This is a conservative estimate based on simple event parameters and is expected to improve as the data analysis techniques are refined. We discuss known TeV sources and the scientific contributions that HAWC can make to our understanding of particle acceleration in these sources.
The HAWC Gamma-Ray Observatory: Design, Calibration, and Operation
HAWC Collaboration,A. U. Abeysekara,R. Alfaro,C. Alvarez,J. D. álvarez,R. Arceo,J. C. Arteaga-Velázquez,H. A. Ayala Solares,A. S. Barber,B. M. Baughman,N. Bautista-Elivar,E. Belmont,S. Y. BenZvi,D. Berley,M. Bonilla Rosales,J. Braun,R. A. Caballero-Lopez,K. S. Caballero-Mora,A. Carrami?ana,M. Castillo,U. Cotti,J. Cotzomi,E. de la Fuente,C. De León,T. DeYoung,R. Diaz Hernandez,J. C. Díaz-Vélez,B. L. Dingus,M. A. DuVernois,R. W. Ellsworth,A. Fernandez,D. W. Fiorino,N. Fraija,A. Galindo,F. Garfias,L. X. González,M. M. González,J. A. Goodman,V. Grabski,M. Gussert,Z. Hampel-Arias,C. M. Hui,P. Hüntemeyer,A. Imran,A. Iriarte,P. Karn,D. Kieda,G. J. Kunde,A. Lara,R. J. Lauer,W. H. Lee,D. Lennarz,H. León Vargas,E. C. Linares,J. T. Linnemann,M. Longo,R. Luna-GarcIa,A. Marinelli,H. Martinez,O. Martinez,J. Martínez-Castro,J. A. J. Matthews,P. Miranda-Romagnoli,E. Moreno,M. Mostafá,J. Nava,L. Nellen,M. Newbold,R. Noriega-Papaqui,T. Oceguera-Becerra,B. Patricelli,R. Pelayo,E. G. Pérez-Pérez,J. Pretz,C. Rivière,D. Rosa-González,H. Salazar,F. Salesa,F. E. Sanchez,A. Sandoval,E. Santos,M. Schneider,S. Silich,G. Sinnis,A. J. Smith,K. Sparks,R. W. Springer,I. Taboada,P. A. Toale,K. Tollefson,I. Torres,T. N. Ukwatta,L. Villase?or,T. Weisgarber,S. Westerhoff,I. G. Wisher,J. Wood,G. B. Yodh,P. W. Younk,D. Zaborov,A. Zepeda,H. Zhou
Physics , 2013,
Abstract: The High-Altitude Water Cherenkov Gamma Ray Observatory (HAWC) is under construction 4100 meters above sea level at Sierra Negra, Mexico. We describe the design and cabling of the detector, the characterization of the photomultipliers, and the timing calibration system. We also outline a next-generation detector based on the water Cherenkov technique.
The HAWC Gamma-Ray Observatory: Observations of Cosmic Rays
HAWC Collaboration,A. U. Abeysekara,R. Alfaro,C. Alvarez,J. D. álvarez,R. Arceo,J. C. Arteaga-Velázquez,H. A. Ayala Solares,A. S. Barber,B. M. Baughman,N. Bautista-Elivar,E. Belmont,S. Y. BenZvi,D. Berley,M. Bonilla Rosales,J. Braun,R. A. Caballero-Lopez,K. S. Caballero-Mora,A. Carrami?ana,M. Castillo,U. Cotti,J. Cotzomi,E. de la Fuente,C. De León,T. DeYoung,R. Diaz Hernandez,J. C. Díaz-Vélez,B. L. Dingus,M. A. DuVernois,R. W. Ellsworth,A. Fernandez,D. W. Fiorino,N. Fraija,A. Galindo,F. Garfias,L. X. González,M. M. González,J. A. Goodman,V. Grabski,M. Gussert,Z. Hampel-Arias,C. M. Hui,P. Hüntemeyer,A. Imran,A. Iriarte,P. Karn,D. Kieda,G. J. Kunde,A. Lara,R. J. Lauer,W. H. Lee,D. Lennarz,H. León Vargas,E. C. Linares,J. T. Linnemann,M. Longo,R. Luna-GarcIa,A. Marinelli,H. Martinez,O. Martinez,J. Martínez-Castro,J. A. J. Matthews,P. Miranda-Romagnoli,E. Moreno,M. Mostafá,J. Nava,L. Nellen,M. Newbold,R. Noriega-Papaqui,T. Oceguera-Becerra,B. Patricelli,R. Pelayo,E. G. Pérez-Pérez,J. Pretz,C. Rivière,D. Rosa-González,H. Salazar,F. Salesa,F. E. Sanchez,A. Sandoval,E. Santos,M. Schneider,S. Silich,G. Sinnis,A. J. Smith,K. Sparks,R. W. Springer,I. Taboada,P. A. Toale,K. Tollefson,I. Torres,T. N. Ukwatta,L. Villase?or,T. Weisgarber,S. Westerhoff,I. G. Wisher,J. Wood,G. B. Yodh,P. W. Younk,D. Zaborov,A. Zepeda,H. Zhou
Physics , 2013,
Abstract: We describe measurements of GeV and TeV cosmic rays with the High-Altitude Water Cherenkov Gamma-Ray Observatory, or HAWC. The measurements include the observation of the shadow of the moon; the observation of small-scale and large-scale angular clustering of the TeV cosmic rays; the prospects for measurement of transient solar events with HAWC; and the observation of Forbush decreases with the HAWC engineering array and HAWC-30.
The HAWC Gamma-Ray Observatory: Dark Matter, Cosmology, and Fundamental Physics
HAWC Collaboration,A. U. Abeysekara,R. Alfaro,C. Alvarez,J. D. álvarez,R. Arceo,J. C. Arteaga-Velázquez,H. A. Ayala Solares,A. S. Barber,B. M. Baughman,N. Bautista-Elivar,E. Belmont,S. Y. BenZvi,D. Berley,M. Bonilla Rosales,J. Braun,R. A. Caballero-Lopez,K. S. Caballero-Mora,A. Carrami?ana,M. Castillo,U. Cotti,J. Cotzomi,E. de la Fuente,C. De León,T. DeYoung,R. Diaz Hernandez,J. C. Díaz-Vélez,B. L. Dingus,M. A. DuVernois,R. W. Ellsworth,A. Fernandez,D. W. Fiorino,N. Fraija,A. Galindo,F. Garfias,L. X. González,M. M. González,J. A. Goodman,V. Grabski,M. Gussert,Z. Hampel-Arias,C. M. Hui,P. Hüntemeyer,A. Imran,A. Iriarte,P. Karn,D. Kieda,G. J. Kunde,A. Lara,R. J. Lauer,W. H. Lee,D. Lennarz,H. León Vargas,E. C. Linares,J. T. Linnemann,M. Longo,R. Luna-GarcIa,A. Marinelli,H. Martinez,O. Martinez,J. Martínez-Castro,J. A. J. Matthews,P. Miranda-Romagnoli,E. Moreno,M. Mostafá,J. Nava,L. Nellen,M. Newbold,R. Noriega-Papaqui,T. Oceguera-Becerra,B. Patricelli,R. Pelayo,E. G. Pérez-Pérez,J. Pretz,C. Rivière,D. Rosa-González,H. Salazar,F. Salesa,F. E. Sanchez,A. Sandoval,E. Santos,M. Schneider,S. Silich,G. Sinnis,A. J. Smith,K. Sparks,R. W. Springer,I. Taboada,P. A. Toale,K. Tollefson,I. Torres,T. N. Ukwatta,L. Villase?or,T. Weisgarber,S. Westerhoff,I. G. Wisher,J. Wood,G. B. Yodh,P. W. Younk,D. Zaborov,A. Zepeda,H. Zhou
Physics , 2013,
Abstract: The High-Altitude Water Cherenkov Gamma Ray Observatory (HAWC) is designed to perform a synoptic survey of the TeV sky. The high energy coverage of the experiment will enable studies of fundamental physics beyond the Standard Model, and the large field of view of the detector will enable detailed studies of cosmologically significant backgrounds and magnetic fields. We describe the sensitivity of the full HAWC array to these phenomena in five contributions shown at the 33rd International Cosmic Ray Conference in Rio de Janeiro, Brazil (July 2013).
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