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1. Performance of the RPCs for the ARGO detector operated at the YangBaJing laboratory (4300m a.s.l.)

Author

Bacci, C., Bao, K. Z., Barone, Fabrizio, Bartoli, B., Bastieri, D., Bernardini, P., Buonomo, R., Bussino, S., Calloni, E., Cao, B. Y., Cardarelli, R., Catalanotti, S., Cavaliere, A., Cesaroni, F., Creti, P., Danzengluobu, D'Ettorre Piazzoli, B., De Vincenzi, M., Di Girolamo, T., Di Sciascio, G., Feng, Z. Y., Fu, Y., Gao, X. Y., Geng, Q. X., Guo, H. W., H. H., He, He, M., Huang, Q., Iacovacci, M., Iucci, N., Jai, H. Y., Kong, F. M., Kuang, H. H., Labaciren, Li, B., J. Y., Li, Liu, Z. Q., Lu, H., X. H., Ma, Mancarella, G., Mari, S. M., Marsella, G., Martello, D., Mei, D. M., Meng, X. R., Milano, L., Morselli, A., Mu, J., Oliviero, M., Padovani, P., Panareo, M., Parisi, M., Pellizzoni, G., Peng, Z. R., Pistilli, P., Santonico, R., Sartori, G., Sbarra, C., Severino, G., Shen, P. R., Sparvoli, R., Stanescu, C., Su, J., Sun, L. R., Sun, S. C., Surdo, A., Tan, Y. H., Vernetto, S., Vietri, M., Wang, C. R., Wang, H., Wang, H. Y., Wei, Y. N., Yang, H. T., Yao, Q. K., G. C., Yu, Yue, X. D., Yuan, A. F., Zhang, H. M., Zhang, J. L., Zhang, N. J., Zhang, T. J., Zhang, X. Y., Zhaxisangzhu, Zhaxiciren, Zhu, Q. Q., Bacci, C, Bao, Kz, Barone, F, Bartoli, B, Bernardini, P, Bussino, Severino Angelo Maria, Calloni, E, Cao, By, Cardarelli, R, Catalanotti, S, Cavaliere, S, Cesaroni, F, Creti, P, Danzengluobu, Piazzoli, Bd, De Vincenzi, M, Di Girolamo, T, Di Sciascio, G, Feng, Zy, Fu, Y, Gao, Xy, Geng, Qx, Guo, Hw, He, Hh, He, M, Huang, Q, Iacovacci, M, Iucci, N, Jai, Hy, Jing, Cl, Kong, Fm, Kuang, Hh, Labaciren, Li, B, Li, Jy, Liu, Zq, Lu, H, Ma, Xh, Mancarella, G, Mari, Stefano Maria, Marsella, G, Martello, D, Meng, Xr, Milano, L, Mu, J, Panareo, M, Peng, Zr, Pistilli, P, Saggese, L, Santonico, R, Shen, Pr, Stanescu, C, Sun, Lr, Sun, Sc, Surdo, A, Tan, Yh, Vernetto, S, Wang, Cr, Wang, H, Wang, Hy, Wei, Yn, Yang, Ht, Yao, Q, Yu, Gc, Yue, Xd, Yuan, Af, Zha, M, Zhang, Hm, Zhang, Jl, Zhang, Nj, Zhang, Xy, Zhaxisangzhu, Zhaxiciren, Zhu, Qq, C., Bacci, K. Z., Bao, F., Barone, Bartoli, Bruno, P., Bernardini, S., Bussino, Calloni, Enrico, B. Y., Cao, R., Cardarelli, Catalanotti, Sergio, S., Cavaliere, F., Cesaroni, P., Creti, D'ETTORRE PIAZZOLI, Benedetto, M. D., Vincenzi, DI GIROLAMO, Tristano, G. D., Sciascio, Z. Y., Feng, Y., Fu, X. Y., Gao, Q. X., Geng, H. W., Guo, H. H., He, M., He, Q., Huang, Iacovacci, Michele, N., Iucci, H. Y., Jai, C. L., Jing, F. M., Kong, H. H., Kuang, B., Li, J. Y., Li, Z. Q., Liu, H., Lu, X. H., Ma, G., Mancarella, S. M., Mari, G., Marsella, D., Martello, X. R., Meng, L., Milano, J., Mu, M., Panareo, Z. R., Peng, P., Pistilli, L., Saggese, R., Santonico, P. R., Shen, C., Stanescu, L. R., Sun, S. C., Sun, A., Surdo, Y. H., Tan, S., Vernetto, C. R., Wang, H., Wang, H. Y., Wang, Y. N., Wei, H. T., Yang, Q., Yao, G. C., Yu, X. D., Yue, A. F., Yuan, M., Zha, H. M., Zhang, J. L., Zhang, N. J., Zhang, X. Y., Zhang, Q. Q., Zhu, B., Bartoli, Bernardini, Paolo, E., Calloni, S., Catalanotti, B., D'ETTORRE PIAZZOLI, M., DE VINCENZI, T., DI GIROLAMO, G., DI SCIASCIO, M., Iacovacci, Mancarella, Giovanni, Marsella, Giovanni, Martello, Daniele, Panareo, Marco, and Q. K., Yao

Subjects
Physics, Nuclear and High Energy Physics, Gamma-ray Astronomy, Extensive air showers, RPCs, Gamma-ray astronomy, Detector, Astronomy, Extensive Air Shower, Time resolution, ARGO-YBJ experiment, chemistry.chemical_compound, chemistry, Operating temperature, Bakelite, Instrumentation, Argo, Counting rate, Remote sensing
Abstract

Bakelite RPCs, assembled according to the ARGO design, have been operated in the high altitude Laboratory of YBJ using dedicated electronics to pick-up the streamer signal. Here we report on the results concerning absorbed current, single counting rate, efficiency and time resolution. Environmental data concerning the operating temperature inside the ARGO experimental hall are also reported. (C) 2003 Elsevier Science B.V. All rights reserved.

Published
2003

2. Early warning for VHE gamma-ray flares with the ARGO-YBJ detector

Author

Y. Q. Guo, B. D'Ettorre Piazzoli, Haibing Hu, H. J. Li, H. R. Wu, C. Bleve, Y. Zhang, L. Xue, X. B. Qu, D. Martello, C. Stanescu, Chang-Chun Ning, B. Bartoli, R. Santonico, Zhaoyang Feng, X. H. Ding, Hong-peng Lu, Jilong Zhang, F. Galeazzi, B. Z. Dai, F. R. Zhu, Y. X. Yan, L. Zhang, F. Ruggieri, Piero Vallania, B. Panico, F. Shi, Y. H. Tan, Zhenyong Feng, C. Liu, P. Branchini, Danzengluobu, X. C. Yang, M. Dattoli, A. K. Calabrese Melcarne, Hongbo Hu, P. Pistilli, X. X. Zhou, C. Y. Wu, M. Iacovacci, M. Zha, X. H. Ma, A. Surdo, R. Cardarelli, C. F. Feng, M. Panareo, J. K. K. Liu, A. Cappa, G. Marsella, Bingwei Xu, E. Giroletti, X. Y. Zhang, Zhiguo Yao, H. H. He, Q. Q. Zhu, Q. B. Gou, A. F. Yuan, Minghui Liu, P. Creti, P. Galeotti, A. Budano, P. Salvini, Labaciren, Jianli Zhang, A. Pagliaro, I. De Mitri, X. D. Sheng, P. R. Shen, Paolo Bernardini, S. Mastroianni, T. Di Girolamo, T. L. Chen, H. M. Zhang, P. Celio, Q. Huang, Q. Y. Yang, I. Bolognino, G. Liguori, Zhaxiciren, G. Zizzi, J. Y. Li, G. Di Sciascio, C. X. Liu, H. W. Wang, G. D'Alí Staiti, Y. B. Chen, H. Y. Jia, Carlo Vigorito, Irina James, G. Mancarella, Paolo Camarri, L. Perrone, Zihuang Cao, X. X. Li, B. S. Wang, Zhaxisangzhu, S. M. Mari, P. F. Zhang, X. J. Bi, S. Z. Chen, C. Cattaneo, E. Rossi, Paolo Montini, R. Iuppa, S. Vernetto, S. Catalanotti, S. W. Cui, Bartoli, B, Bernardini, P, Bi, XJ, Bleve, C, Bolognino, I, Branchini, P, Budano, A, Calabrese Melcarne, AK, Camarri, P, Cao, Z, Cappa, A, Cardarelli, R, Catalanotti, S, Cattaneo, C, Celio, P, Chen, SZ, Chen, TL, Chen, Y, Creti, P, Cui, SW, Dai, BZ, D’Ali' Staiti, G, Danzengluobu, Dattoli, M, De Mitri, I, D’Ettorre Piazzoli, B, Di Girolamo, T, Ding, XH, Di Sciascio, G, Feng, CF, Feng, ZYa, Feng, ZYo, Galeazzi, F, Galeotti, P, Giroletti, E, Gou, QB, Guo, YQ, He, HH, Hu, HBa, Hu, HBo, Huang, Q, Iacovacci, M, Iuppa, R, James, I, Jia, HY, Labaciren, Li, HJ, Li, JY, Li, XX, Liguori, G, Liu, C, Liu, CQ, Liu, J, Liu, MY, Lu, H, Ma, XH, Mancarella, G, Mari, SM, Marsella, G, Martello, D, Mastroianni, S, Montini, P, Ning, CC, Pagliaro, A, Panareo, M, Panico, B, Perrone, L, Pistilli, P, Qu, XB, Rossi, E, Ruggieri, F, Salvini, P, Santonico, R, Shen, PR, Sheng, XD, Shi, F, Stanescu, C, Surdo, A, Tan, YH, Vallania, P, Vernetto, S, Vigorito, C, Wang, B, Wang, H, Wu, CY, Wu, HR, Xu B, Xue, L, Yan, YX, Yang, QY, Yang, XC, Yao, ZG, Yuan, AF, Zha, M, Zhang, HM, Zhang, JLo, Zhang, JLi, Zhang, L, Zhang, P, Zhang, XY, Zhang, Y, Zhaxiciren, Zhaxisangzhu, Zhou, XX, Zhu, FR, Zhu, QQ, Zizzi, G, Bartoli, Bruno, Catalanotti, Sergio, D'ETTORRE PIAZZOLI, Benedetto, DI GIROLAMO, Tristano, Iacovacci, Michele, B., Bartoli, Bernardini, Paolo, X. J., Bi, C., Bleve, I., Bolognino, P., Branchini, A., Budano, A. K., Calabrese Melcarne, P., Camarri, Z., Cao, A., Cappa, R., Cardarelli, S., Catalanotti, C., Cattaneo, P., Celio, S. Z., Chen, T. L., Chen, Y., Chen, P., Creti, S. W., Cui, B. Z., Dai, G., D’Alı´staiti, M., Dattoli, DE MITRI, Ivan, B., D’Ettorre Piazzoli, T., Di Girolamo, X. H., Ding, G., Di Sciascio, C. F., Feng, Zhaoyang, Feng, Zhenyong, Feng, F., Galeazzi, P., Galeotti, E., Giroletti, Q. B., Gou, Y. Q., Guo, H. H., He, Haibing, Huo, Hongbo, Hue, Q., Huang, M., Iacovacci, R., Iuppa, I., Jame, H. Y., Jia, H. J., Li, J. Y., Li, X. X., Li, G., Liguori, C., Liu, C. Q., Liu, J., Liu, M. Y., Liu, H., Lu, X. H., Ma, Mancarella, Giovanni, S. M., Mari, Marsella, Giovanni, Martello, Daniele, S., Mastroianni, P., Montini, C. C., Ning, A., Pagliaro, Panareo, Marco, B., Panico, Perrone, Lorenzo, P., Pistilli, X. B., Qu, E., Rossi, F., Ruggieri, P., Salvini, R., Santonico, P. R., Shen, X. D., Sheng, F., Shi, C., Stanescu, A., Surdo, Y. H., Tan, P., Vallania, S., Vernetto, C., Vigorito, B., Wang, H., Wang, C. Y., Wu, H. R., Wu, B., Xu, L., Xue, Y. X., Yan, Q. Y., Yang, X. C., Yang, Z. G., Yao, A. F., Yuan, M., Zha, H. M., Zhang, Jilongzhang, Jianlizhang, L., Zhang, P., Zhang, X. Y., Zhang, Y., Zhang, Zhaxiciren, Zhaxisangzhu, X. X., Zhou, F. R., Zhu, Q. Q., Zhu, G., Zizzi, Barton, B, Bi, Xj, Melcarne, Akc, Chen, Sz, Chen, Tl, Cui, Sw, Dai, Bz, Staiti, Gd, Piazzoli, Bd, Ding, Xh, Feng, Cf, Feng, Zy, Gou, Qb, Guo, Yq, He, Hh, Hu, Hb, Ilacovacci, M, Jia, Hy, Li, Hj, Li, Jy, Li, Xx, Liu, Cq, Liu, My, Ma, Xh, Mari, Stefano Maria, Ning, Cc, Qu, Xb, Santonicoi, R, Shen, Pr, Sheng, Xd, Tan, Yh, Wu, Cy, Wu, Hr, Xu, B, Yan, Yx, Yang, Qy, Yang, Xc, Yao, Zg, Yuan, Af, Zhang, Hm, Zhang, Jl, Zhang, Xy, Zhou, Xx, Zhu, Fr, Zhu, Qq, and Zizzi, G.

Subjects
Wide field of view, Nuclear and High Energy Physics, Monitoring, Astrophysics::High Energy Astrophysical Phenomena, ARGO-YBJ, Flaring phenomenon, VHE extragalactic source, Astrophysics, Settore FIS/05 - Astronomia E Astrofisica, Instrumentation, Sorgenti VHE extragalattiche, Argo, Cherenkov radiation, Physics, Fenomeni transienti, Warning system, Detector, Settore FIS/01 - Fisica Sperimentale, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Monitoring Flaring Phenomenon, Astronomy, Wide field, Duty cycle, Ampio campo di vista, Flaring phenomena, VHE extragalactic sources, Gamma Ray Bursts, Large Field of view telescope, ARGO-YBJ, Gamma-ray burst
Abstract

Detecting and monitoring emissions from flaring gamma-ray sources in the very-high-energy (VHE, > 100 GeV) band is a very important topic in gamma-ray astronomy. The ARGO-YBJ detector is characterized by a high duty cycle and a wide field of view. Therefore, it is particularly capable of detecting flares from extragalactic objects. Based on fast reconstruction and analysis, real-time monitoring of 33 selected VHE extragalactic sources is implemented. Flares exceeding a specific threshold are reported timely, hence enabling the follow-up observation of these objects using more sensitive detectors, such as Cherenkov telescopes. (C) 2011 Elsevier B.V. All rights reserved.

Published
2011

3. Proton-air cross section measurement with the ARGO-YBJ cosmic ray experiment

Author

I. De Mitri, B. D'Ettorre Piazzoli, A. K. Calabrese Melcarne, P. Pistilli, H. M. Zhang, G. Marsella, X. X. Zhou, Enrico Rossi, Giovanni Mancarella, L. Xue, F. Galeazzi, P. Galeotti, C. Liu, Jilong Zhang, G. D'Alí Staiti, P. Vallania, A. Surdo, X. X. Li, Q. Huang, Giulio Aielli, Hong-peng Lu, X. H. Ma, Longzhou Zhang, Q. Q. Zhu, C. Bacci, G. Liguori, Haibing Hu, M. Y. Liu, A. Pagliaro, A. F. Yuan, Zhenyong Feng, Huaguang Wang, C. Bleve, Paolo Camarri, Y. Zhang, B. Bartoli, X. D. Sheng, Fudong Shi, Q. Y. Yang, N. Cheng, X. R. Meng, G. Zizzi, D. Martello, J. K. K. Liu, C. Cattaneo, J. Y. Li, R. Gargana, Danzengluobu, Labaciren, S. Mastroianni, R. Santonico, M. Iacovacci, Chang-Chun Ning, B. S. Wang, S. M. Mari, X. Y. Zhang, L. Perrone, Zhaxisangzhu, Zhaoyang Feng, Y. Q. Guo, Jianli Zhang, P. Creti, Zihuang Cao, F. Ruggieri, A. Cappa, Carlo Vigorito, Y. X. Yan, Antonio Budano, S. W. Cui, C. Y. Wu, Barbara Liberti, X. B. Qu, C. Q. Liu, X. C. Yang, P. Salvini, X. H. Ding, L. Saggese, P. F. Zhang, X. J. Bi, Irina James, Roberto Cardarelli, P. Bernardini, S. Z. Chen, Y. H. Tan, F. R. Zhu, Paolo Montini, R. Iuppa, S. Catalanotti, M. Panareo, G. Di Sciascio, T. Di Girolamo, P. Celio, H.H. He, M. Dattoli, M. De Vincenzi, Y. B. Chen, Hongbo Hu, C. F. Feng, H. Y. Jia, H. J. Li, S. Vernetto, H. R. Wu, P. R. Shen, M. Zha, B. Z. Dai, Cristian Stanescu, P. Branchini, Bingwei Xu, Severino Angelo Maria Bussino, Q. B. Gou, Aielli, G, Bacci, C, Bartoli, B, Bernardini, P, Bi, XJ, Bleve, C, Branchini, P, Budano, A, Bussino, S, Calabrese Melcarne, AK, Camarri, P, Cao, Z, Cappa, A, Cardarelli, R, Catalanotti, S, Cattaneo, C, Celio, P, Chen, SZ, Chen, Y, Cheng, N, Creti, P, Cui, SW, Dai, BZ, D'Ali'Staiti, G, Danzengluobu, Dattoli, M, De Mitri, I, D'Ettorre Piazzoli, B, De Vincenzi, M, Di Girolamo, T, Ding, XH, Di Sciascio, G, Feng, F, Feng, ZYa, Feng, ZYo, Galeazzi, F, Galeotti, P, Gargana, R, Gou, QB, Guo, YQ, He, HH, Hu, HaB, Hu, HoB, Huang, Q, Iacovacci, M, Iuppa, R, James, I, Jia, HY, Labaciren, Li, HJ, Li, JY, Li, XX, Liberti, B, Liguori, G, Liu, C, Liu, CQ, Liu, J, Liu, MY, Lu, H, Ma, XH, Mancarella, G, Mari, SM, Marsella, G, Martello, D, Mastroianni, S, Meng, XR, Montini, P, Ning, CC, Pagliaro, A, Panareo, M, Perrone, L, Pistilli, P, Qu, XB, Rossi, E, Ruggieri, F, Saggese, L, Salvini, P, Santonico, R, Shen, PR, Sheng, XD, Shi, F, Stanescu, C, Surdo, A, Tan, YH, Vallania, P, Vernetto, S, Vigorito, C, Wang, B, Wang, H, Wu, CY, Wu, HR, Xu, B, Xue, L, Yan, YX, Yang, QY, Yang, XC, Yuan, AF, Zha, M, Zhang, HM, Zhang, JLi, Zhang, JLo, Zhang, L, Zhang, P, Zhang, XY, Zhang, Y, Zhaxisangzhu, Zhou, XX, Zhu, FR, Zhu, QQ, Zizzi, G, G., Aielli, C., Bacci, B., Bartoli, Bernardini, Paolo, X. J., Bi, Bleve, Carla, P., Branchini, A., Budano, S., Bussino, A. K., Calabrese Melcarne, P., Camarri, Z., Cao, A., Cappa, R., Cardarelli, S., Catalanotti, C., Cattaneo, P., Celio, S. Z., Chen, Y., Chen, N., Cheng, P., Creti, S. W., Cui, B. Z., Dai, G., D’Ali' Staiti, M., Dattoli, DE MITRI, Ivan, B., D’Ettorre Piazzoli, M., De Vincenzi, T., Di Girolamo, X. H., Ding, G., Di Sciascio, C. F., Feng, Zhaoyang, Feng, Zhenyong, Feng, F., Galeazzi, P., Galeotti, R., Gargana, Q. B., Gou, Y. Q., Guo, H. H., He, Haibing, Hu, Hongbo, Hu, Q., Huang, M., Iacovacci, R., Iuppa, I., Jame, H. Y., Jia, H. J., Li, J. Y., Li, X. X., Li, B., Liberti, G., Liguori, C., Liu, C. Q., Liu, M. Y., Liu, J., Liu, H., Lu, X. H., Ma, Mancarella, Giovanni, S. M., Mari, Marsella, Giovanni, Martello, Daniele, S., Mastroianni, X. R., Meng, P., Montini, C. C., Ning, A., Pagliaro, Panareo, Marco, Perrone, Lorenzo, P., Pistilli, X. B., Qu, E., Rossi, F., Ruggieri, L., Saggese, P., Salvini, R., Santonico, P. R., Shen, X. D., Sheng, F., Shi, C., Stanescu, A., Surdo, Y. H., Tan, P., Vallania, S., Vernetto, C., Vigorito, B., Wang, H., Wang, C. Y., Wu, H. R., Wu, B., Xu, L., Xue, Y. X., Yan, Q. Y., Yang, X. C., Yang, A. F., Yuan, M., Zha, H. M., Zhang, Jilong, Zhang, Jianli, Zhang, L., Zhang, P., Zhang, X. Y., Zhang, Y., Zhang, X. X., Zhou, F. R., Zhu, Q. Q., Zhu, Zizzi, Giovanni, Bi, Xj, Bussino, Severino Angelo Maria, Melcarne, Akc, Chen, Sz, Cui, Sw, Dai, Bz, Staiti, Gd, Piazzoli, Bd, Ding, Xh, Feng, Cf, Feng, Zy, Gou, Qb, Guo, Yq, He, Hh, Hu, Hb, Jia, Hy, Li, Hj, Li, Jy, Li, Xx, Liu, Cq, Liu, My, Ma, Xh, Mari, Stefano Maria, Meng, Xr, Ning, Cc, Qu, Xb, Shen, Pr, Sheng, Xd, Tan, Yh, Wu, Cy, Wu, Hr, Yan, Yx, Yang, Qy, Yang, Xc, Yuan, Af, Zhang, Hm, Zhang, Jl, Zhang, Xy, Zhou, Xx, Zhu, Fr, Zhu, Qq, Zizzi, G., Bartoli, Bruno, Catalanotti, Sergio, B., D???Ettorre Piazzoli, DI GIROLAMO, Tristano, Iacovacci, Michele, and Collaborazione ARGO, Ybj

Subjects
Nuclear and High Energy Physics, Cosmic rays, Proton-air cross section, gamma astronomy, Proton, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Cosmic ray, Cross Section, 01 natural sciences, Cosmic Ray, High Energy Physics - Experiment, Nuclear physics, 0103 physical sciences, Multiplicity (chemistry), 010306 general physics, Nuclear Experiment, Zenith, Argo, Physics, 010308 nuclear & particles physics, Attenuation, Detector, Settore FIS/01 - Fisica Sperimentale, Astrophysics::Instrumentation and Methods for Astrophysics, 3. Good health, Hadronic Interaction, High Energy Physics::Experiment, Extensive Air Showers
Abstract

The proton-air cross section in the energy range 1-100 TeV has been measured by the ARGO-YBJ cosmic ray experiment. The analysis is based on the flux attenuation for different atmospheric depths (i.e. zenith angles) and exploits the detector capabilities of selecting the shower development stage by means of hit multiplicity, density and lateral profile measurements at ground. The effects of shower fluctuations, the contribution of heavier primaries and the uncertainties of the hadronic interaction models, have been taken into account. The results have been used to estimate the total proton-proton cross section at center of mass energies between 70 and 500 GeV, where no accelerator data are currently available., Comment: 14 pages, 9 figures

Published
2009

4. Software Timing Calibration of the ARGO-YBJ Detector

Author

A. Cappa, F. R. Zhu, L. Perrone, M. Panareo, P. Zhang, C. Y. Wu, P. Salvini, A. F. Yuan, L. Zhang, Q. Q. Zhu, X. R. Meng, Y.G. Wang, N. Cheng, P. Pistilli, C. Stanescu, Zhaoyang Feng, X. X. Zhou, S. Mastroianni, S. Catalanotti, H.T. Yang, Piero Vallania, C. Vigorito, L. Saggese, X. C. Yang, P. Galeotti, B. D'Ettorre Piazzoli, J. K. K. Liu, H. J. Li, H. R. Wu, A. Budano, Zhengguo Cao, H. Y. Jia, M. Iacovacci, M. Zha, R. Gargana, Labaciren, C. Bacci, C. Cattaneo, T. Di Girolamo, M. Dattoli, X. Y. Gao, L. Xue, P. Celio, G.C. Yu, Haoqi Lu, Zhaxisangzhu, I. James, Q. Huang, G. Di Sciascio, G. Cusumano, C. Pino, F. Shi, Danzengluobu, P. Creti, C.C. Ning, M. De Vincenzi, C. Liu, Sergio Cavaliere, Luciano Nicastro, A. K. Calabrese Melcarne, C. Ferrigno, A. Segreto, R. Cardarelli, Y. H. Zhang, G. Marsella, B. Liberti, G. Mancarella, B. Bartoli, P. Camarri, E. Rossi, X. Y. Zhang, H. W. Wang, S. W. Cui, Zhenyong Feng, Huihai He, S. Vernetto, F. Galeazzi, X. D. Sheng, Paolo Bernardini, Hongbo Hu, A. Surdo, C. F. Feng, R. Santonico, P. R. Shen, G. Aielli, Zhang Jingzhe, Bingwei Xu, Severino Angelo Maria Bussino, Q. B. Gou, J. Y. Li, I. De Mitri, L. Palummo, H. M. Zhang, Q. Y. Yang, G. D'Alí Staiti, G. Zizzi, S. M. Mari, J. Mu, X. J. Bi, S. Z. Chen, B. Z. Dai, F. Ruggieri, P. Branchini, X. B. Qu, X. H. Ding, Y. H. Tan, G. Liguori, Haibing Hu, C. Bleve, D. Martello, G., Aielli, C., Bacci, B., Bartoli, Bernardini, Paolo, X. J., Bi, C., Bleve, P., Branchini, A., Budano, S., Bussino, A. K., Calabrese Melcarne, P., Camarri, Z., Cao, A., Cappa, R., Cardarelli, S., Catalanotti, C., Cattaneo, S., Cavaliere, P., Celio, S. Z., Chen, N., Cheng, P., Creti, S. W., Cui, G., Cusumano, B. Z., Dai, G., D’Alí Staiti, Danzengluobu, M., Dattoli, DE MITRI, Ivan, B., D’Ettorre Piazzoli, M., De Vincenzi, T., Di Girolamo, X. H., Ding, G., Di Sciascio, C. F., Feng, Zhaoyang, Feng, Zhenyong, Feng, C., Ferrigno, F., Galeazzi, P., Galeotti, X. Y., Gao, R., Gargana, Q. B., Gou, H. H., He, Haibing, Hu, Hongbo, Hu, Q., Huang, M., Iacovacci, I., Jame, H. Y., Jia, Labaciren, H. J., Li, J. Y., Li, B., Liberti, G., Liguori, C. Q., Li, J., Li, H., Lu, Mancarella, Giovanni, S. M., Mari, Marsella, Giovanni, Martello, Daniele, S., Mastroianni, X. R., Meng, J., Mu, L., Nicastro, C. C., Ning, L., Palummo, Panareo, Marco, Perrone, Lorenzo, C., Pino, P., Pistilli, X. B., Qu, E., Rossi, F., Ruggieri, L., Saggese, P., Salvini, R., Santonico, A., Segreto, P. R., Shen, X. D., Sheng, F., Shi, C., Stanescu, A., Surdo, Y. H., Tan, P., Vallania, S., Vernetto, C., Vigorito, H., Wang, Y. G., Wang, C. Y., Wu, H. R., Wu, B., Xu, L., Xue, H. T., Yang, Q. Y., Yang, X. C., Yang, G. C., Yu, A. F., Yuan, M., Zha, H. M., Zhang, J. L., Zhang, L., Zhang, P., Zhang, X. Y., Zhang, Y., Zhang, Zhaxisangzhu, X. X., Zhou, F. R., Zhu, Q. Q., Zhu, G., Zizzi, AIELLI, G, BACCI, C, BARTOLI, B, BERNARDINI, P, BI, XJ, BLEVE, C, BRANCHINI, P, BUDANO, A, BUSSINO, S, CALABRESE MELCARNE, AK, CAMARRI, P, CAO, Z, CAPPA, A, CARDARELLI, R, CATALANOTTI, S, CATTANEO, C, CAVALIERE, S, CELIO, P, CHEN, SZ, CHENG, N, CRETI, P, CUI, SW, CUSUMANO, G, DAI, BZ, D'ALI'STAITI, G, DANZENGLUOBU, DATTOLI, M, DE MITRI, I, DETTORRE PIAZZOLI, B, DE VINCENZI, M, DI GIROLAMO, T, DING, XH, DI SCIASCIO, G, FENG, CF, FENG, ZHAOYANG, FENG, ZHENYONG, FERRIGNO, C, GALEAZZI, F, GALEOTTI, P, GAO, XY, GARGANA, R, GOU, QB, HE, HH, HU, HAIBING, HU, HONGBO, HUANG, Q, IACOVACCI, M, JAMES, I, JIA, HY, LABACIREN, LI, HJ, LI, JY, LIBERTI, B, LIGUORI, G, LIU, CQ, LIU, J, LU, H, MANCARELLA, G, MARI, SM, MARSELLA, G, MARTELLO, D, MASTROIANNI, S, MENG, XR, MU, J, NICASTRO, L, NING, CC, PALUMMO, L, PANAREO, M, PERRONE, L, PINO, C, PISTILLI, P, QU, XB, ROSSI, E, RUGGIERI, F, SAGGESE, L, SALVINI, P, SANTONICO, R, SEGRETO, A, SHEN, PR, SHENG, XD, SHI, F, STANESCU, C, SURDO, A, TAN, YH, VALLANIA, P, VERNETTO, S, VIGORITO, C, WANG, H, WANG, YG, WU, CY, WU, HR, XU, B, XUE, L, YANG, HT, YANG, QY, YANG, XC, YU, GC, YUAN, AF, ZHA, M, ZHANG, HM, ZHANG, JL, ZHANG, L, ZHANG, P, ZHANG, XY, ZHANG, Y, ZHAXISANGZHU, ZHOU, XX, ZHU, FR, ZHU, QQ, G ZIZZI, g, Aielli, G, Bacci, C, Bartoli, B, Bernardini, P, Bi, Xj, Bleve, C, Branchini, P, Budano, A, Bussino, Severino Angelo Maria, Melcarne, Akc, Camarri, P, Cao, Z, Cappa, A, Cardarelli, R, Catalanotti, S, Cattaneo, C, Cavaliere, S, Celio, P, Chen, Sz, Cheng, N, Creti, P, Cui, Sw, Cusumano, G, Dai, Bz, Staiti, Gd, Dattoli, M, De Mitri, I, Piazzoli, Bd, De Vincenzi, M, Di Girolamo, T, Ding, Xh, Di Sciascio, G, Feng, Cf, Feng, Zy, Ferrigno, C, Galeazzi, F, Galeotti, P, Gao, Xy, Gargana, R, Gou, Qb, He, Hh, Hu, Hb, Huang, Q, Iacovacci, M, James, I, Jia, Hy, Li, Hj, Li, Jy, Liberti, B, Liguori, G, Liu, Cq, Liu, J, Lu, H, Mancarella, G, Mari, Stefano Maria, Marsella, G, Martello, D, Mastroianni, S, Meng, Xr, Mu, J, Nicastro, L, Ning, Cc, Palummo, L, Panareo, M, Perrone, L, Pino, C, Pistilli, P, Qu, Xb, Rossi, E, Ruggieri, F, Saggese, L, Salvini, P, Santonico, R, Segreto, A, Shen, Pr, Sheng, Xd, Shi, F, Stanescu, C, Surdo, A, Tan, Yh, Vallania, P, Vernetto, S, Vigorito, C, Wang, H, Wang, Yg, Wu, Cy, Wu, Hr, Xu, B, Xue, L, Yang, Ht, Yang, Qy, Yang, Xc, Yu, Gc, Yuan, Af, Zha, M, Zhang, Hm, Zhang, Jl, Zhang, L, Zhang, P, Zhang, Xy, Zhang, Y, Zhou, Xx, Zhu, Fr, Zhu, Qq, Zizzi, G., Bartoli, Bruno, Catalanotti, Sergio, Cavaliere, Sergio, D'ETTORRE PIAZZOLI, Benedetto, DI GIROLAMO, Tristano, and Iacovacci, Michele

Subjects
Physics, Pixel, Calibration (statistics), business.industry, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Settore FIS/01 - Fisica Sperimentale, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Astronomia gamma, Gamma Astronomy, Timing Calibration, Extensive Air Showers, Sciami estesi, Calibrazione temporale, Optics, Software, Raggi cosmici, Settore FIS/05 - Astronomia e Astrofisica, Angular resolution, business, Argo, Remote sensing
Abstract

The ARGO-YBJ experiment is mainly devoted to search for astronomical gamma sources. The arrival direction of air showers is reconstructed thanks to the times measured by the pixels of the detector. Therefore, the timing calibration of the detector pixels is crucial in order to get the best angular resolution and pointing accuracy. Because of the large number of pixels a hardware timing calibration is practically impossible. Therefore an off-line software calibration has been adopted. Here, the details of the procedure and the results are presented. (C) 2008 Elsevier B.V. All rights reserved.

Published
2009

5. Search for gamma ray bursts with the ARGO-YBJ detector in scaler mode

Author

THE ARGO YBJ C.O.L.L.A.B.O.R.A.T.I.O.N.G. Aielli a, b, C. Bacci c, d, B. Bartoli e, f, P. Bernardini g, h, X. J. Bi i, C. Bleve g, P. Branchini d, A. Budano d, S. Bussino c, A. K. Calabrese Melcarne x, P. Camarri a, Z. Cao i, A. Cappa j, k, R. Cardarelli b, S. Catalanotti f, e, C. Cattaneo l, P. Celio c, S. Z. Chen i, Y. Chen i, N. Cheng i, P. Creti h, S. W. Cuim, B. Z. Dai o, G. D’Alí Staiti n, p, Danzengluobu q, M. Dattoli j, k, r, I. De Mitri g, B. D’Ettorre Piazzoli f, M. DeVincenzi c, T. Di Girolamo f, X. H. Ding q, G. Di Sciascio b, C. F. Feng s, ZhaoyangFeng i, Zhenyong Feng t, F. Galeazzi d, P. Galeotti j, r, R. Gargana d, Q. B. Gou i, Y. Q. Guo i, H. H. He i, Haibing Huq, Hongbo Hui, Q. Huang t, M. Iacovacci f, R. Iuppa a, I. James c, H. Y. Jia t, Labaciren q, H. J. Li q, J. Y. Li s, X. X. Li i, B. Liberti b, G. Liguori l, u, C. Liu i, C. Q. Liu o, M. Y. Lium, J. Liu o, H. Lui, X. H. Mai, G. Mancarellag, c, d, G. Marsella h, v, D. Martello g, S. Mastroianni e, X. R. Meng q, P. Montini c, C. C. Ning q, A. Pagliaro n, w, M. Panareo h, L. Perrone h, P. Pistilli c, X. B. Qu s, E. Rossi e, F. Ruggieri d, L. Saggese f, P. Salvini l, R. Santonico a, P. R. Shen i, X. D. Sheng i, F. Shi i, C. Stanescu d, A. Surdo h, Y. H. Tan i, P. Vallania j, S. Vernetto j, C. Vigorito j, B. Wangi, H. Wang i, C. Y. Wui, H. R. Wui, B. Xut, L. Xues, Y. X. Yanm, Q. Y. Yang o, X. C. Yang o, A. F. Yuan q, M. Zha i, H. M. Zhang i, JiLong Zhang i, JianLi Zhang i, L. Zhang o, P. Zhang o, X. Y. Zhang s, Y. Zhang i, Zhaxisangzhu q, X. X. Zhou t, F. R. Zhu i, Q. Q. Zhu i, G. Zizzi g, MARI, Stefano Maria, Aielli, G, Bacci, C, Bartoli, B, Bernardini, P, Bi, Xj, Bleve, C, Branchini, P, Budano, A, Bussino, Severino Angelo Maria, Calabrese Melcarne, Ak, Camarri, P, Cao, Z, Cappa, A, Cardarelli, R, Catalanotti, S, Cattaneo, C, Celio, P, Chen, Sz, Chen, Tl, Chen, Y, Cheng, N, Creti, P, Cui, Sw, Dai, Bz, D'Ali Staiti, G, Danzengluobu, Dattoli, M, De Mitri, I, D'Ettorre Piazzoli, B, De Vincenzi, M, Di Girolamo, T, Ding, Xh, Di Sciascio, G, Feng, Cf, Feng Zhao, Yang, Feng Zhen, Yong, Galeazzi, F, Galeotti, P, Gargana, R, Gou, Qb, Guo, Yq, He, Hh, Hu, Haibing, Hu Hong, Bo, Huang, Q, Iacovacci, M, Iuppa, R, James, I, Jia, Hy, Labaciren, Li, Hj, Li, Jy, Li, Xx, Liberti, B, Liguori, G, Liu, C, Liu, Cq, Liu, My, Liu, J, Lu, H, Ma, Xh, Mancarella, G, Mari, Stefano Maria, Marsella, G, Martello, D, Mastroianni, S, Meng, Xr, Montini, P, Ning, Cc, Pagliaro, A, Panareo, M, Perrone, L, Pistilli, P, Qu, Xb, Rossi, E, Ruggieri, F, Saggese, L, Salvini, P, Santonico, R, Shen, Pr, Sheng, Xd, Shi, F, Stanescu, C, Surdo, A, Tan, Yh, Vallania, P, Vernetto, S, Vigorito, C, Wang, B, Wang, H, Wu, Cy, Wu, Hr, Xu, B, Xue, L, Yan, Yx, Yang, Qy, Yang, Xc, Yuan, Af, Zha, M, Zhang, Hm, Zhang Ji, Long, Zhang Jian, Li, Zhang, L, Zhang, P, Zhang, Xy, Zhang, Y, Zhaxisangzhu, Zhou, Xx, Zhu, Fr, Zhu, Qq, Zizzi, G., G., Aielli, C., Bacci, F., Barone, B., Bartoli, Bernardini, Paolo, X. J., Bi, C., Bleve, P., Branchini, A., Budano, S., Bussino, A. K., Calabrese Melcarne, P., Camarri, Z., Cao, A., Cappa, R., Cardarelli, S., Catalanotti, C., Cattaneo, S., Cavaliere, P., Celio, S. Z., Chen, N., Cheng, P., Creti, S. W., Cui, G., Cusumano, B. Z., Dai, G., D’Alí Staiti, M., Dattoli, DE MITRI, Ivan, R., De Rosa, B., D’Ettorre Piazzoli, M., De Vincenzi, T., Di Girolamo, X. H., Ding, G., Di Sciascio, C. F., Feng, Zhaoyang, Feng, Zhenyong, Feng, C., Ferrigno, F., Galeazzi, P., Galeotti, X. Y., Gao, R., Gargana, F., Garufi, Q. B., Gou, H. H., He, Haibing, Hu, Hongbo, Hu, Q., Huang, M., Iacovacci, I., Jame, H. Y., Jia, H. J., Li, J. Y., Li, B., Liberti, G., Liguori, C. Q., Liu, J., Liu, H., Lu, Mancarella, Giovanni, S. M., Mari, Marsella, Giovanni, Martello, Daniele, S., Mastroianni, X. R., Meng, J., Mu, L., Nicastro, C. C., Ning, L., Palummo, Panareo, Marco, Perrone, Lorenzo, P., Pistilli, X. B., Qu, E., Rossi, F., Ruggieri, L., Saggese, P., Salvini, R., Santonico, A., Segreto, P. R., Shen, X. D., Sheng, F., Shi, C., Stanescu, A., Surdo, Y. H., Tan, P., Vallania, S., Vernetto, C., Vigorito, H., Wang, Y. G., Wang, C. Y., Wu, H. R., Wu, B., Xu, L., Xue, H. T., Yang, Q. Y., Yang, X. C., Yang, G. C., Yu, A. F., Yuan, M., Zha, H. M., Zhang, J. L., Zhang, L., Zhang, P., Zhang, X. Y., Zhang, Y., Zhang, X. X., Zhou, F. R., Zhu, Q. Q., Zhu, G., Zizzi, Aielli a, THE ARGO YBJ C. O. L. L. A. B. O. R. A. T. I. O. N. G., B, C., Bacci c, D, B., Bartoli e, F, P., Bernardini g, H, X. J., Bi i, C., Bleve g, P., Branchini d, A., Budano d, S., Bussino c, A. K., Calabrese Melcarne x, P., Camarri a, Z., Cao i, A., Cappa j, K, R., Cardarelli b, S., Catalanotti f, E, C., Cattaneo l, P., Celio c, S. Z., Chen i, Y., Chen i, N., Cheng i, P., Creti h, S. W., Cuim, B. Z., Dai o, G., D’Alí Staiti n, P, Danzengluobu, Q, M., Dattoli j, K, R, I., De Mitri g, B., D’Ettorre Piazzoli f, M., DeVincenzi c, T., Di Girolamo f, X. H., Ding q, G., Di Sciascio b, Zhaoyangfeng, I, Zhenyong Feng, T, F., Galeazzi d, P., Galeotti j, R, R., Gargana d, Q. B., Gou i, Y. Q., Guo i, H. H., He i, Haibing, Huq, Hongbo, Hui, Q., Huang t, M., Iacovacci f, R., Iuppa a, I., James c, H. Y., Jia t, Labaciren, Q, H. J., Li q, X. X., Li i, B., Liberti b, G., Liguori l, U, C., Liu i, C. Q., Liu o, M. Y., Lium, J., Liu o, H., Lui, X. H., Mai, G., Mancarellag, C, D, G., Marsella h, V, D., Martello g, S., Mastroianni e, X. R., Meng q, P., Montini c, C. C., Ning q, A., Pagliaro n, W, M., Panareo h, L., Perrone h, P., Pistilli c, E., Rossi e, F., Ruggieri d, L., Saggese f, P., Salvini l, R., Santonico a, P. R., Shen i, X. D., Sheng i, F., Shi i, C., Stanescu d, A., Surdo h, Y. H., Tan i, P., Vallania j, S., Vernetto j, C., Vigorito j, B., Wangi, H., Wang i, C. Y., Wui, H. R., Wui, B., Xut, Y. X., Yanm, Q. Y., Yang o, X. C., Yang o, A. F., Yuan q, M., Zha i, H. M., Zhang i, JiLong Zhang, I, JianLi Zhang, I, L., Zhang o, P., Zhang o, Y., Zhang i, Zhaxisangzhu, Q, X. X., Zhou t, F. R., Zhu i, Q. Q., Zhu i, G., Zizzi g, Barone, F, Melcarne, Akc, Cavaliere, S, Staiti, Gd, De Rosa, R, Piazzoli, Bd, DE VINCENZI, Mario, Feng, Zy, Gao, Xy, Garufi, F, Hu, Hb, Mu, J, Palummo, L, Segreto, A, Wang, Yg, Yang, Ht, Yu, Gc, Zhang, Jl, Bleve, Carla, CALABRESE MELCARNE, ANNA KAREN, G., D’Alì Staiti, Y. Q., Guo, R., Iuppa, Zizzi, Giovanni, DI GIROLAMO, Tristano, Aielli, G., Bacci, C., Barone, F., Bartoli, Bruno, Bernardini, P., Bleve, C., Branchini, P., Budano, A., Bussino, S., Calabrese Melcarne, A. K., Camarri, P., Cao, Z., Cappa, A., Cardarelli, R., Catalanotti, Sergio, Cattaneo, C., Cavaliere, Sergio, Celio, P., Chen, S. Z., Cheng, N., Creti, P., Cui, S. W., Dai, B. Z., D'Alì Staiti, G., Dattoli, M., De Mitri, I., DE ROSA, Rosario, D'ETTORRE PIAZZOLI, Benedetto, De Vincenzi, M., Ding, X. H., Di Sciascio, G., Feng, C. F., Galeazzi, F., Galeotti, P., Gao, X. Y., Gargana, R., Garufi, Fabio, Gou, Q. B., Guo, Y. Q., Huang, Q., Iacovacci, Michele, Iuppa, R., James, I., Jia, H. Y., Liberti, B., Liguori, G., Liu, C. Q., Liu, J., Lu, H., Mancarella, G., Mari, S. M., Marsella, G., Martello, D., Mastroianni, S., Meng, X. R., Mu, J., Ning, C. C., Palummo, L., Panareo, M., Perrone, L., Pistilli, P., Rossi, E., Ruggieri, F., Saggese, L., Salvini, P., Santonico, R., Segreto, A., Shen, P. R., Sheng, X. D., Shi, F., Stanescu, C., Surdo, A., Tan, Y. H., Vallania, P., Vernetto, S., Vigorito, C., Wang, H., Wang, Y. G., Xu, B., Xue, L., Yang, H. T., Yang, Q. Y., Yang, X. C., Yuan, A. F., Zha, M., Zhang, H. M., Zhang, J. L., Zhang, L., Zhang, P., Zhang, X. Y., Zhang, Y., Zhou, X. X., Zhu, F. R., Zhu, Q. Q., AIELLI, G, BACCI, C, BARONE, F, BARTOLI, B, BERNARDINI, P, BI, XJ, BLEVE, C, BRANCHINI, P, BUDANO, A, BUSSINO, S, CALABRESE MELCARNE, AK, CAMARRI, P, CAO, Z, CAPPA, A, CARDARELLI, R, CATALANOTTI, S, CATTANEO, C, CAVALIERE, S, CELIO, P, CHEN, SZ, CHENG, N, CRETI, P, CUI, SW, DAI, BZ, D'ALI'STAITI, G, DANZENGLUOBU, DATTOLI, M, DE MITRI, I, DE ROSA, R, DETTORRE PIAZZOLI, B, DE VINCENZI, M, DI GIROLAMO, T, DING, XH, DI SCIASCIO, G, FENG, CF, FENG, ZHAOYANG, FENG, ZHENYONG, GALEAZZI, F, GALEOTTI, P, GAO, XY, GARGANA, R, GARUFI, F, GOU, QB, GUO, YQ, HE, HH, HU, HAIBING, HU, HONGBO, HUANG, Q, IACOVACCI, M, IUPPA, R, JAMES, I, JIA, HY, LABACIREN, LI, HJ, LI, JY, LIBERTI, B, LIGUORI, G, LIU, CQ, LIU, J, LU, H, MANCARELLA, G, MARI, SM, MARSELLA, G, MARTELLO, D, MASTROIANNI, S, MENG, XR, MU, J, NING, CC, PALUMMO, L, PANAREO, M, PERRONE, L, PISTILLI, P, QU, XB, ROSSI, E, RUGGIERI, F, SAGGESE, L, SALVINI, P, SANTONICO, R, SEGRETO, A, SHEN, PR, SHENG, XD, SHI, F, STANESCU, C, SURDO, A, TAN, YH, VALLANIA, P, VERNETTO, S, VIGORITO, C, WANG, H, WANG, YG, WU, CY, WU, HR, XU, B, XUE, L, YANG, HT, YANG, QY, YANG, XC, YU, GC, YUAN, AF, ZHA, M, ZHANG, HM, ZHANG, JL, ZHANG, L, ZHANG, P, ZHANG, XY, ZHANG, Y, ZHAXISANGZHU, ZHOU, XX, ZHU, FR, ZHU, QQ, and ZIZZI, G

Subjects
Nuclear and High Energy Physics, Gamma ray burst, Astrophysics::High Energy Astrophysical Phenomena, Air shower array, Astrophysics, Argo-Ybj, Settore FIS/05 - Astronomia e Astrofisica, Observatory, Gamma Rays Observations, Instrumentation, Zenith, Argo, Physics, Range (particle radiation), Apparati di sciame, Detector, Settore FIS/01 - Fisica Sperimentale, Gamma ray, Gamma ray bursts, Air shower arrays, Mode (statistics), Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Redshift, Air shower, Space and Planetary Science, Gamma Ray Bursts, Gamma Ray Emission, Astrophysics - High Energy Astrophysical Phenomena, Gamma-ray burst
Abstract

We report on the search for Gamma Ray Bursts (GRBs) in the energy range 1-100 GeV in coincidence with the prompt emission detected by satellites using the Astrophysical Radiation with Ground-based Observatory at YangBaJing (ARGO-YBJ) air shower detector. Thanks to its mountain location (Yangbajing, Tibet, P.R. China, 4300 m a.s.l.), active surface (about 6700 m**2 of Resistive Plate Chambers), and large field of view (about 2 sr, limited only by the atmospheric absorption), the ARGO-YBJ air shower detector is particularly suitable for the detection of unpredictable and short duration events such as GRBs. The search is carried out using the "single particle technique", i.e. counting all the particles hitting the detector without measurement of the energy and arrival direction of the primary gamma rays. Between 2004 December 17 and 2009 April 7, 81 GRBs detected by satellites occurred within the field of view of ARGO-YBJ (zenith angle < 45 deg). It was possible to examine 62 of these for >1 GeV counterpart in the ARGO-YBJ data finding no statistically significant emission. With a lack of detected spectra in this energy range fluence upper limits are profitable, especially when the redshift is known and the correction for the extragalactic absorption can be considered. The obtained fluence upper limits reach values as low as 10**{-5} erg cm**{-2} in the 1-100 GeV energy region. Besides this individual search for a higher energy counterpart, a statistical study of the stack of all the GRBs both in time and in phase was made, looking for a common feature in the GRB high energy emission. No significant signal has been detected., Comment: accepted for publication in ApJ

Published
2008

6. Layout and performance of RPC used in the Argo-YBJ experiment

Author

C. Y. Wu, Haibing Hu, S. Bricola, C. Bleve, B. D'Ettorre Piazzoli, H.T. Yang, L. Saggese, X. Y. Zhang, Q. Q. Zhu, C. Pinto, C.C. Ning, L. Perrone, P. Salvini, L. Xue, Zhengguo Cao, J. Y. Li, G. D'Alí Staiti, R. Santonico, P. Pistilli, X. X. Zhou, Hongbo Hu, C. F. Feng, K Fratini, A. F. Yuan, A. Surdo, Labaciren, P. Vallania, X. J. Bi, Yonggang Wang, Q. Huang, F. Shi, P. R. Shen, M. Zha, Zhaxisangzhu, X. R. Meng, I. De Mitri, Zhaoyang Feng, R. Assiro, Zhenyong Feng, T. Di Girolamo, H. M. Zhang, I. James, J. Mu, P. Celio, C. Pino, Haoqi Lu, N.J. Zhang, Y. H. Zhang, Luciano Nicastro, M. Iacovacci, G. Mancarella, F. R. Zhu, D. Martello, Yungang Wang, C. Liu, S. Vernetto, M. Cavalli Sforza, P. Zhang, S. M. Mari, B. D'Aquino, Sergio Cavaliere, D. Campana, A. Mangano, G. Pellizzoni, B. Liberti, B. Z. Dai, Huihai He, E. De Marinis, Cristian Stanescu, G. Aielli, H. J. Li, H. R. Wu, Severino Angelo Maria Bussino, Q. B. Gou, G. Di Sciascio, M. De Vincenzi, H. Y. Jia, C. Bacci, S. Mastroianni, F. Budano, Jianbing Zhang, H. W. Wang, B. Biondo, G.C. Yu, X. D. Sheng, X.F. Gao, A. K. Calabrese Melcarne, G. Marsella, L. Zhang, P. Bernardini, Xc Yang, Giancarlo Cusumano, G. Liguori, M. He, Q. Y. Yang, Paolo Camarri, Eva Reali, N. Cheng, Danzengluobu, X. H. Ding, Roberto Cardarelli, Y. H. Tan, P. Creti, J. K. K. Liu, S. Catalanotti, M. Panareo, E. Rossi, B. Bartoli, THE ARGO YBJ, Collaboration, G., Aielli, R., Assiro, C., Bacci, B., Bartoli, P., Bernardini, X. J., Bi, B., Biondo, C., Bleve, S., Bricola, F., Budano, Bussino, Severino Angelo Maria, A. K., CALABRESE MELCARNE, P., Camarri, D., Campana, Z., Cao, R., Cardarelli, S., Catalanotti, S., Cavaliere, P., Celio, N., Cheng, P., Creti, G., Cusumano, B. Z., Dai, G., DALI STAITI, Danzengluobu, B., Daquino, E., DE MARINIS, I., DE MITRI, B., DETTORRE PIAZZOLI, M., DE VINCENZI, T., DI GIROLAMO, X. H., Ding, G., DI SCIASCIO, C. F., Feng, Zhaoyang, Feng, Zhenyong, Feng, K., Fratini, X. F., Gao, Q. B., Gou, H. H., He, M., He, Haibing, Hu, Hongbo, Hu, Q., Huang, M., Iacovacci, I., Jame, H. Y., Jia, Labaciren, H. J., Li, J. Y., Li, B., Liberti, G., Liguori, C. Q., Liu, J., Liu, H., Lu, G., Mancarella, A., Mangano, Mari, Stefano Maria, G., Marsella, D., Martello, S., Mastroianni, X. R., Meng, J., Mu, L., Nicastro, C. C., Ning, M., Panareo, L., Perrone, C., Pino, C., Pinto, P., Pistilli, E., Rossi, L., Saggese, P., Salvini, R., Santonico, P. R., Shen, X. D., Sheng, F., Shi, C., Stanescu, A., Surdo, Y. H., Tan, P., Vallania, S., Vernetto, H., Wang, Yonggang, Wang, Yungang, Wang, C. Y., Wu, H. R., Wu, L., Xue, H. T., Yang, Q. Y., Yang, X. C., Yang, G. C., Yu, A. F., Yuan, M., Zha, H. M., Zhang, J. L., Zhang, L., Zhang, N. J., Zhang, P., Zhang, X. Y., Zhang, Y., Zhang, Zhaxisangzhu, X. X., Zhol, F. R., Zhu, Q. Q., Zhu, G., Aiellia, R., Assirob, C., Baccic, Bartoli, Bruno, P., Bernardinib, X. J., Bie, B., Biondof, C., Bleveb, S., Bricolag, F., Budanoc, S., Bussinoc, A. K., CALABRESE MELCARNEB, P., Camarria, D., Campanad, Z., Caoe, R., Cardarellia, Catalanotti, Sergio, Cavaliere, Sergio, M., CAVALLI SFORZAC, P., Celioc, N., Chenge, P., Cretib, G., Cusumanof, B. Z., Daih, G., DAL STAITII, Danzengluobuj, B., Daquinod, E., DE MARINISC, I., DE MITRIB, D'ETTORRE PIAZZOLI, Benedetto, M., DE VINCENZIC, DI GIROLAMO, Tristano, X. H., Dingj, G., DI SCIASCIOD, C. F., Fengk, Zhaoyang, Fenge, Zhenyong, Fengl, K., Fratinic, X. F., Gaoh, Q. B., Goue, H. H., Hee, M., Hek, Haibing, Huj, Hongbo, Hue, Q., Huangl, Iacovacci, Michele, I., Jamesg, H. Y., Jial, Labacirenj, H. J., Lij, J. Y., Lik, B., Libertia, G., Liguorig, C. Q., Liuh, J., Liuh, H., Lue, G., Mancarellab, A., Manganof, S. M., Maric, G., Marsellab, D., Martellob, Mastroianni, Stefano, X. R., Mengj, J., Muh, L., Nicastrof, C. C., Ningj, M., Panareob, G., Pellizzonic, L., Perroneb, C., Pinob, C., Pintob, P., Pistillic, E., Realia, Rossi, Elvira, Saggese, Luigi, P., Salvinig, R., Santonicoa, P. R., Shene, X. D., Shenge, F., Shie, C., Stanescuc, A., Surdob, Y. H., Tane, P., Vallaniam, S., Vernettom, H., Wange, Yonggang, Wangk, Yungang, Wange, C. Y., Wue, H. R., Wue, L., Xuek, H. T., Yangh, Q. Y., Yangh, X. C., Yangh, G. C., Yul, A. F., Yuanj, M., Zhae, H. M., Zhange, J. L., Zhange, L., Zhangh, N. J., Zhangk, P., Zhangh, X. Y., Zhangk, Y., Zhange, Zhaxisangzhuj, X. X., Zhoul, F. R., Zhue, Q. Q., Zhue, Aielli, G, Assiro, R, Bacci, C, Bartoli, B, Bernardini, P, Bi, Xj, Biondo, B, Bleve, C, Bricola, S, Budano, F, Melcarne, Akc, Camarri, P, Campana, D, Cao, Z, Cardarelli, R, Catalanotti, S, Cavaliere, S, Sforza, Mc, Celio, P, Cheng, N, Creti, P, Cusumano, G, Dai, Bz, Staiti, Gd, D'Aquino, B, De Marinis, E, De Mitri, I, Plazzoli, Bd, DE VINCENZI, Mario, Girolamo, T, Ding, Xh, Di Sciascio, G, Feng, Cf, Feng, Zy, Fratini, K, Gao, Xf, Gou, Qb, He, Hh, He, M, Hu, Hb, Huang, Q, Iacovacci, M, James, I, Jia, Hy, Li, Hj, Li, Jy, Liberti, B, Liguori, G, Liu, Cq, Liu, J, Lu, H, Mancarella, G, Mangano, A, Marsella, G, Martello, D, Mastrolanni, S, Meng, Xr, Mu, J, Nicastro, L, Ning, Cc, Panareo, M, Pellizzoni, G, Perrone, L, Pino, C, Pinto, C, Pistilli, P, Reali, E, Rossi, E, Saggese, L, Salvini, P, Santonico, R, Shen, Pr, Sheng, Xd, Shi, F, Stanescu, C, Surdo, A, Tan, Yh, Vallania, P, Vernetto, S, Wang, H, Wang, Yg, Wu, Cy, Wu, Hr, Xue, L, Yang, Ht, Yang, Qy, Yang, Xc, Yu, Gc, Yuan, Af, Zha, M, Zhang, Hm, Zhang, Jl, Zhang, L, Zhang, Nj, Zhang, P, Zhang, Xy, Zhang, Y, Zhou, Xx, Zhu, Fr, Zhu, Qq, Bernardini, Paolo, S., Bussino, A. K., Calabrese Melcarne, M., Cavalli Sforza, G., D’Alı' Staiti, B., D’Aquino, E., De Marini, DE MITRI, Ivan, B., D’Ettorre Piazzoli, M., De Vincenzi, T., Di Girolamo, G., Di Sciascio, Mancarella, Giovanni, S. M., Mari, Marsella, Giovanni, Martello, Daniele, Panareo, Marco, G., Pellizzoni, Perrone, Lorenzo, E., Reali, X. X., Zhou, R ASSIRO, C BACCI, B BARTOLI, P BERNARDINI, XJ BI, B BIONDO, C BLEVE, S BRICOLA, SBUDANO, S BUSSINO, AK CALABRESE MELCARNE, P CAMARRI, D CAMPANA, Z CAO, S CARDARELLI, S CATALANOTTI, S CAVALIERE, M CAVALLI SFORZA, P CELIO, N CHENG, P CRETI, G CUSUMANO, BZ DAI, D'ALI' STAITI G, DANZENGLUOBU, B DAQUINO, E DE MARINIS, I DE MITRI, B DETTORRE PIAZZOLI, M DE VINCENZI, T DI GIROLAMO, XH DING, G DI SCIASCIO, CFFENG, Z FENG, K FRATINI, XF GAO, QB GOU, HH HE, M HE, H HU, HHU, Q HUANG, M IACOVACCI, I JAMES, HY JIA, LABACIREN, HJ LI, JY LI, B LIBERTI, G LIGUORI, CQ LIU, J LIU, H LU, G MANCARELLA, A MANGANO, SM MARI, G MARSELLA, D MARTELLO, S MASTROIANNI, XR MENG, J MU, L NICASTRO, CC NING, M PANAREO, G PELLIZZONI, L PERRONE, C PINO, C PINTO, P PISTILLI, E REALI, E ROSSI, L SAGGESE, P SALVINI, R SANTONICO, PR SHEN, XD SHENG, F SHI, C STANESCU, A SURDO, XY TAN, P VALLANIA, S VERNETTO, H WANG, Y WANG, CY WU, HR WU, L XUE, HT YANG, QY YANG, XC YANG, GCYU, AF YUAN, M ZHA, HM ZHANG, JL ZHANG, L ZHANG, NJ ZHANG, P ZHANG, XYZHANG, Y ZHANG, ZHAXISANGZOU, XX ZHOU, FR ZHOU, and QQ ZHOU

Subjects
Physics, Nuclear and High Energy Physics, Rivelatori a ga, Physics::Instrumentation and Detectors, Cosmic rays detector, Astrophysics::High Energy Astrophysical Phenomena, Detector, Settore FIS/01 - Fisica Sperimentale, Resistive Plate Chambers, Cosmic Rays, Extended Air Showers, Camere a piani resistivi, Rivelatori di raggi cosmici, Settore AGR/03 - Arboricoltura Generale E Coltivazioni Arboree, Gas detector, Range (statistics), RPC, Granularity, Particle density, Instrumentation, Argo, Remote sensing
Abstract

The layout of the RPCs, used in the Argo-YBJ experiment to image with a high space-time granularity the atmospheric shower, is described in this paper. The detector has been assembled to provide both digital and analog informations in order to cover a wide particle density range with a time accuracy of 1 ns. The experimental results obtained operating the chambers in streamer mode at sea level with a standard gas mixture are presented. (c) 2006 Elsevier B.V. All rights reserved.

Published
2006

7. Results of the ARGO-YBJ test experiment

Author

Bacci, C., Bao, K. Z., Barone, Fabrizio, Bartoli, B., Bastieri, D., Bernardini, P., Buonomo, R., Bussino, S., Calloni, E., Cao, B. Y., Cardarelli, R., Catalanotti, S., Cavaliere, A., Cesaroni, F., Creti, P., Danzengluobu, D'Ettorre Piazzoli, B., De Vincenzi, M., Di Girolamo, T., Di Sciascio, G., Feng, Z. Y., Fu, Y., Gao, X. Y., Geng, Q. X., Guo, H. W., H. H., He, He, M., Huang, Q., Iacovacci, M., Iucci, N., Jai, H. Y., Kong, F. M., Kuang, H. H., Labaciren, Li, B., J. Y., Li, Liu, Z. Q., Lu, H., X. H., Ma, Mancarella, G., Mari, S. M., Marsella, G., Martello, D., Mei, D. M., Meng, X. R., Milano, L., Morselli, A., Mu, J., Oliviero, M., Padovani, P., Panareo, M., Parisi, M., Pellizzoni, G., Peng, Z. R., Pistilli, P., Santonico, R., Sartori, G., Sbarra, C., Severino, G., Shen, P. R., Sparvoli, R., Stanescu, C., Su, J., Sun, L. R., Sun, S. C., Surdo, A., Tan, Y. H., Vernetto, S., Vietri, M., Wang, C. R., Wang, H., Wang, H. Y., Wei, Y. N., Yang, H. T., Yao, Q. K., G. C., Yu, Yue, X. D., Yuan, A. F., Zhang, H. M., Zhang, J. L., Zhang, N. J., Zhang, T. J., Zhang, X. Y., Zhaxisangzhu, Zhaxiciren, Zhu, Q. Q., Bacci, C, Bao, Kz, Barone, F, Bartoli, B, Bernardini, Paolo, Bussino, S, Calloni, E, Cao, By, Cardarelli, R, Catalanotti, S, Cavaliere, S, Cesaroni, F, Creti, P, Danzengluobu, Piazzoli, Bd, DE VINCENZI, M, DI GIROLAMO, T, DI SCIASCIO, G, Feng, Zy, Fu, Y, Gao, Xy, Geng, Qx, Guo, Hw, He, Hh, He, M, Huang, Q, Iacovacci, M, Iucci, N, Jai, Hy, Jing, Cl, Kong, Fm, Kuang, Hh, Labaciren, Li, B, Li, Jy, Liu, Zq, Lu, H, Ma, Xh, Mancarella, Giovanni, Mari, Sm, Marsella, Giovanni, Martello, Daniele, Meng, Xr, Milano, L, Mu, J, Panareo, Marco, Peng, Zr, Pistilli, P, Santonico, R, Shen, Pr, Stanescu, C, Sun, Lr, Sun, Sc, Surdo, A, Tan, Yh, Vernetto, S, Wang, Cr, Wang, H, Wang, Hy, Wei, Yn, Yang, Ht, Yao, Qk, Yu, Gc, Yue, Xd, Yuan, Af, Zha, M, Zhang, Hm, Zhang, Jl, Zhang, Nj, Zhang, Xy, Zhaxisangzhu, Zhaxiciren, and Zhu, Qq

Subjects
Astroparticle physics, Physics, Resistive touchscreen, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, Cosmic ray, Gamma-ray astronomy, Gamma-ray Astronomy, Cosmic rays, Ground-based Astronomy, Nuclear physics, Angular distribution, High Energy Physics::Experiment, Argo, Time profile
Abstract

A resistive plate counters (RPCs) carpet of ∼50 m 2 has been put in operation in the Yangbajing Laboratory (Tibet, P.R. China) at 4300 m a.s.l., in order to study the RPCs performance at high altitude and the detector capability of imaging the EAS disc. This test has been performed in view of an enlarged use of RPCs for the ARGO-YBJ experiment. This experiment will be devoted to a wide range of fundamental issues in cosmic rays and astroparticle physics, including in particular γ-ray astronomy and γ-ray bursts physics at energies ⩾100 GeV. In this paper we present and discuss the procedures adopted to calibrate the detector and reconstruct the shower direction. Results concerning many shower features as the angular distribution, the density spectrum, the time profile of the shower front, are found well consistent with the expectation.

Published
2002

8. The use of RPC in the ARGO-YBJ project

Author

C. Bacci, K.Z. Bao, F. Barone, B. Bartoli, D. Bastieri, P. Bernardini, S. Bussino, E. Calloni, B.Y. Cao, R. Cardarelli, S. Catalanotti, A. Cavaliere, F. Cesaroni, P. Creti, null Danzengluobu, B. D'Ettorre Piazzoli, M. De Vincenzi, T. Di Girolamo, G. Di Sciascio, Z.Y. Feng, Y. Fu, X.Y. Gao, Q.X. Geng, H.W. Guo, Q. Huang, H.H. He, M. He, M. Iacovacci, N. Iucci, H.Y. Jai, F.M. Kong, H.H. Kuang, null Labaciren, B. Li, J.Y. Li, Z.Q. Liu, H. Lu, X.H. Ma, C. Marmolino, G. Mancarella, S.M. Mari, D. Martello, G. Marsella, D.M. Mei, X.R. Meng, A. Morselli, L. Milano, J. Mu, M. Oliviero, P. Padovani, M. Panareo, M. Parisi, Z.R. Peng, P. Pistilli, R. Santonico, G. Sartori, C. Sbarra, G. Severino, R. Sparvoli, C. Stanescu, M. Storini, P.R. Shen, L.R. Sun, S.C. Sun, J. Su, A. Surdo, Y.H. Tan, S. Vernetto, M. Vietri, C.R. Wang, F. Wang, H.Y. Wang, Y.N. Wei, H.T. Yang, W.K. Yao, G.C. Yu, A.F. Yuan, X.D. Yue, H.M. Zhang, J.L. Zhang, N.J. Zhang, T.J. Zhang, X.Y. Zhang, null Zhaxiciren, null Zhaxisangzhu, Q.Q. Zhu, Bacci, C, Bao, Kz, Barone, F, Bartoli, B, Bastieri, D, Bernardini, P, Bussino, S, Calloni, E, Cao, By, Cardarelli, R, Catalanotti, S, Cavaliere, A, Cesaroni, F, Creti, P, Danzengluobu, Piazzoli, Bd, DE VINCENZI, M, DI GIROLAMO, T, DI SCIASCIO, G, Feng, Zy, Fu, Y, Gao, Xy, Geng, Qx, Guo, Hw, Huang, Q, He, Hh, He, M, Iacovacci, M, Iucci, N, Jai, Hy, Kong, Fm, Kuang, Hh, Labaciren, Li, B, Li, Jy, Liu, Zq, Lu, H, Ma, Xh, Marmolino, C, Mancarella, G, Mari, Sm, Martello, Daniele, Marsella, Giovanni, Mei, Dm, Meng, Xr, Morselli, A, Milano, L, Mu, J, Oliviero, M, Padovani, P, Panareo, Marco, Parisi, M, Peng, Zr, Pistilli, P, Santonico, R, Sartori, G, Sbarra, C, Severino, G, Sparvoli, R, Stanescu, C, Storini, M, Shen, Pr, Sun, Lr, Sun, Sc, Su, J, Surdo, A, Tan, Yh, Vernetto, S, Vietri, M, Wang, Cr, Wang, F, Wang, Hy, Wei, Yn, Yang, Ht, Yao, Qk, Yu, Gc, Yuan, Af, Yue, Xd, Zhang, Hm, Zhang, Jl, Zhang, Nj, Zhang, Tj, Zhang, Xy, Zhaxiciren, Zhaxisangzhu, Zhu, Qq, C., Bacci1, K. Z., Bao2, F., Barone3, B., Bartoli3, D., Bastieri4, P., Bernardini5, R., Buonomo3, Bussino, Severino Angelo Maria, E., Calloni3, B. Y., Cao6, R., Cardarelli7, S., Catalanotti3, A., Cavaliere7, F., Cesaroni5, P., Creti5, Danzengluobu8, B., D'Ettorre Piazzoli3, M., De Vincenzi1, T., Di Girolamo3, G., Di Sciascio3, Z. Y., Feng9, Y., Fu6, X. Y., Gao10, Q. X., Geng10, H. W., Guo8, H. H., He11, M., He6, Q., Huang9, M., Iacovacci3, N., Iucci1, H. Y., Jai9, F. M., Kong6, H. H., Kuang11, Labaciren8, B., Li2, J. Y., Li6, Z. Q., Liu10, H., Lu11, X. H., Ma11, G., Mancarella5, Mari, Stefano Maria, G., Marsella5, D., Martello5, D. M., Mei8, X. R., Meng8, L., Milano3, A., Morselli7, J., Mu10, M., Oliviero13, P., Padovani7, M., Panareo5, M., Parisi1, G., Pellizzoni1, Z. R., Peng11, P., Pistilli1, R., Santonico7, G., Sartori4, C., Sbarra4, G., Severino13, P. R., Shen11, R., Sparvoli7, C., Stanescu1, J., Su11, L. R., Sun2, S. C., Sun2, A., Surdo5, Y. H., Tan11, S., Vernetto14, M., Vietri1, C. R., Wang6, H., Wang11, H. Y., Wang11, Y. N., Wei2, H. T., Yang12, Q. K., Yao2, G. C., Yu9, X. D., Yue2, A. F., Yuan8, H. M., Zhang11, J. L., Zhang11, N. J., Zhang6, T. J., Zhang10, X. Y., Zhang6, Zhaxisangzhu8, Zhaxiciren8, Q. Q., Zhu11, C., Bacci, K. Z., Bao, F., Barone, Bartoli, Bruno, D., Bastieri, P., Bernardini, S., Bussino, Calloni, Enrico, B. Y., Cao, R., Cardarelli, Catalanotti, Sergio, A., Cavaliere, F., Cesaroni, P., Creti, D'ETTORRE PIAZZOLI, Benedetto, M. D., Vincenzi, DI GIROLAMO, Tristano, G. D., Sciascio, Z. Y., Feng, Y., Fu, X. Y., Gao, Q. X., Geng, H. W., Guo, Q., Huang, H. H., He, M., He, Iacovacci, Michele, N., Iucci, H. Y., Jai, F. M., Kong, H. H., Kuang, B., Li, J. Y., Li, Z. Q., Liu, H., Lu, X. H., Ma, C., Marmolino, G., Mancarella, S. M., Mari, D., Martello, G., Marsella, D. M., Mei, X. R., Meng, A., Morselli, L., Milano, J., Mu, M., Oliviero, P., Padovani, M., Panareo, M., Parisi, Z. R., Peng, P., Pistilli, R., Santonico, G., Sartori, C., Sbarra, G., Severino, R., Sparvoli, C., Stanescu, M., Storini, P. R., Shen, L. R., Sun, S. C., Sun, J., Su, A., Surdo, Y. H., Tan, S., Vernetto, M., Vietri, C. R., Wang, F., Wang, H. Y., Wang, Y. N., Wei, H. T., Yang, Q. K., Yao, G. C., Yu, A. F., Yuan, X. D., Yue, H. M., Zhang, J. L., Zhang, N. J., Zhang, T. J., Zhang, X. Y., Zhang, Q. Q., Zhu, B., Bartoli, Bernardini, Paolo, E., Calloni, S., Catalanotti, B., D'ETTORRE PIAZZOLI, M., DE VINCENZI, T., DI GIROLAMO, G., DI SCIASCIO, M., Iacovacci, and Mancarella, Giovanni

Subjects
Nuclear and High Energy Physics, Computer science, Detector, Real-time computing, Full coverage, Atomic and Molecular Physics, and Optics, Argo
Abstract

We present the ARGO-YBJ experiment, a full coverage detector placed at high altitude (similar to 4300 m a.s.l.) that exploits the RPC technique. Results of a test experiment performed at Yanbajing site, with a full coverage RPC carpet of 50 m(2) are also presented.

9. Results from the ARGO-YBJ test experiment

Author

B.Y. Cao, X.D. Yue, S. Catalanotti, M. Panareo, J. Mu, Y Fu, M. Iacovacci, A. F. Yuan, R. Santonico, P. Creti, B. D'Ettorre Piazzoli, Q. Q. Zhu, G. Di Sciascio, J. Y. Li, H.Y. Jai, H. H. He, H.T. Yang, Labaciren, Severino Angelo Maria Bussino, J. Su, M. De Vincenzi, F.M. Kong, M. He, B. Bartoli, Dongming Mei, Zhaxiciren, C. Bacci, T. Di Girolamo, G.C. Yu, Cristian Stanescu, A. Cavaliere, T.J. Zhang, Z.Y. Feng, Y.N. Wei, Hong-peng Lu, Q.K. Yao, F. Wang, S. Vernetto, Q. X. Geng, X. Y. Gao, Danzengluobu, Bing Li, Giovanni Mancarella, P. Pistilli, H. M. Zhang, H.H. Kuang, S. M. Mari, K.Z. Bao, Sergio Cavaliere, X. Y. Zhang, Fabrizio Barone, A. Morselli, N.J. Zhang, G. Marsella, P. R. Shen, H.Y. Wang, A. Surdo, H.W. Guo, S.C. Sun, Q. Huang, C.R. Wang, Roberto Cardarelli, Enrico Calloni, X. R. Meng, X. H. Ma, N. Iucci, Y. H. Tan, J.L. Zhang, D. Martello, Z.Q. Liu, F Cesaroni, P. Bernardini, Zhaxisangzhu, L. Milano, Z.R. Peng, L.R. Sun, C., Bacci, K. Z., Bao, F., Barone, B., Bartoli, Bernardini, Paolo, S., Bussino, E., Calloni, B. Y., Cao, R., Cardarelli, S., Catalanotti, A., Cavaliere, S., Cavaliere, F., Cesaroni, P., Creti, Danzengluobu, B., D'ETTORRE PIAZZOLI, M., DE VINCENZI, T., DI GIROLAMO, G., DI SCIASCIO, Z. Y., Feng, Y., Fu, X. Y., Gao, Q. X., Geng, H. W., Guo, H. H., He, M., He, Q., Huang, M., Iacovacci, N., Iucci, H. Y., Jai, F. M., Kong, H. H., Kuang, Labaciren, B., Li, J. Y., Li, Z. Q., Liu, H., Lu, X. H., Ma, Mancarella, Giovanni, S. M., Mari, Marsella, Giovanni, Martello, Daniele, D. M., Mei, X. R., Meng, L., Milano, A., Morselli, J., Mu, Panareo, Marco, Z. R., Peng, P., Pistilli, R., Santonico, P. R., Shen, C., Stanescu, J., Su, L. R., Sun, S. C., Sun, A., Surdo, Y. H., Tan, S., Vernetto, C. R., Wang, H., Wang, H. Y., Wang, Y. N., Wei, H. T., Yang, Q. K., Yao, G. C., Yu, X. D., Yue, A. F., Yuan, H. M., Zhang, J. L., Zhang, N. J., Zhang, T. J., Zhang, X. Y., Zhang, Zhaxisangzhu, Zhaxiciren, Q. Q., Zhu, Bacci, C, Bao, Kz, Barone, F, Bartoli, B, Bernardini, P, Bussino, S, Calloni, E, Cao, By, Cardarelli, R, Catalanotti, S, Cavaliere, A, Cavaliere, S, Cesaroni, F, Creti, P, Piazzoli, Bd, DE VINCENZI, M, DI GIROLAMO, T, DI SCIASCIO, G, Feng, Zy, Fu, Y, Gao, Xy, Geng, Qx, Guo, Hw, He, Hh, He, M, Huang, Q, Iacovacci, M, Iucci, N, Jai, Hy, Kong, Fm, Kuang, Hh, Li, B, Li, Jy, Liu, Zq, Lu, H, Ma, Xh, Mancarella, G, Mari, Sm, Mei, Dm, Meng, Xr, Milano, L, Morselli, A, Mu, J, Peng, Zr, Pistilli, P, Santonico, R, Shen, Pr, Stanescu, C, Su, J, Sun, Lr, Sun, Sc, Surdo, A, Tan, Yh, Vernetto, S, Wang, Cr, Wang, F, Wang, Hy, Wei, Yn, Yang, Ht, Yao, Qk, Yu, Gc, Yue, Xd, Yuan, Af, Zhang, Hm, Zhang, Jl, Zhang, Nj, Zhang, Tj, Zhang, Xy, Zhu, Qq, Bartoli, Bruno, P., Bernardini, Calloni, Enrico, Catalanotti, Sergio, D'ETTORRE PIAZZOLI, Benedetto, M. D., Vincenzi, DI GIROLAMO, Tristano, G. D., Sciascio, Iacovacci, Michele, G., Mancarella, G., Marsella, D., Martello, M., Panareo, and F., Wang

Subjects
gamma-ray detectors, Nuclear and High Energy Physics, Engineering, Shower, Air shower, Altitude, Meteorology, business.industry, business, Gamma rays: burst, Atomic and Molecular Physics, and Optics, Argo
Abstract

An RPC carpet covering similar to 10(4) m(2) (ARGO-YBJ experiment) will be installed in the YangBaJing Laboratory (Tibet, P.R. China) at an altitude of 4300 m a.s.l.. A test-module of similar to 50 m(2) has been put in operation in this laboratory and about 10(6) air shower events have been collected. The carpet capability of reconstructing the shower features is presented.

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