论文标题

在表面上使用NOVA检测器搜索慢速磁单波

Search for Slow Magnetic Monopoles with the NOvA Detector on the Surface

论文作者

NOvA Collaboration, Acero, M. A., Adamson, P., Aliaga, L., Alion, T., Allakhverdian, V., Anfimov, N., Antoshkin, A., Arrieta-Diaz, E., Asquith, L., Aurisano, A., Back, A., Backhouse, C., Baird, M., Balashov, N., Baldi, P., Bambah, B. A., Bashar, S., Bays, K., Bending, S., Bernstein, R., Bhatnagar, V., Bhuyan, B., Bian, J., Blair, J., Booth, A. C., Bour, P., Bowles, R., Bromberg, C., Buchanan, N., Butkevich, A., Calvez, S., Carroll, T. J., Catano-Mur, E., Childress, S., Choudhary, B. C., Coan, T. E., Colo, M., Corwin, L., Cremonesi, L., Davies, G. S., Derwent, P. F., Ding, P., Djurcic, Z., Dolce, M., Doyle, D., Tonguino, D. Dueñas, Dung, P., Dukes, E. C., Duyang, H., Edayath, S., Ehrlich, R., Elkins, M., Feldman, G. J., Filip, P., Flanagan, W., Franc, J., Frank, M. J., Gallagher, H. R., Gandrajula, R., Gao, F., Germani, S., Giri, A., Gomes, R. A., Goodman, M. C., Grichine, V., Groh, M., Group, R., Guo, B., Habig, A., Hakl, F., Hall, A., Hartnell, J., Hatcher, R., Heller, K., Hewes, V, Himmel, A., Holin, A., Huang, J., Hylen, J., Jarosz, J., Jediny, F., Johnson, C., Judah, M., Kakorin, I., Kalra, D., Kaplan, D. M., Keloth, R., Klimov, O., Koerner, L. W., Kolupaeva, L., Kotelnikov, S., Kullenberg, Ch., Kubu, M., Kumar, A., Kuruppu, C. D., Kus, V., Lackey, T., Lang, K., Li, L., Lin, S., Lister, A., Lokajicek, M., Luchuk, S., Magill, S., Mann, W. A., Marshak, M. L., Martinez-Casales, M., Matveev, V., Mayes, B., Méndez, D. P., Messier, M. D., Meyer, H., Miao, T., Miller, W. H., Mishra, S. R., Mislivec, A., Mohanta, R., Moren, A., Morozova, A., Mualem, L., Muether, M., Mufson, S., Mulder, K., Murphy, R., Musser, J., Naples, D., Nayak, N., Nelson, J. K., Nichol, R., Niner, E., Norman, A., Norrick, A., Nosek, T., Olshevskiy, A., Olson, T., Paley, J., Patterson, R. B., Pawloski, G., Petrova, O., Petti, R., Plunkett, R. K., Rafique, A., Raj, V., Ramson, B., Rebel, B., Rojas, P., Ryabov, V., Samoylov, O., Sanchez, M. C., Falero, S. Sánchez, Shanahan, P., Sheshukov, A., Singh, P., Singh, V., Smith, E., Smolik, J., Snopok, P., Solomey, N., Song, E., Sousa, A., Soustruznik, K., Strait, M., Suter, L., Sutton, A., Swain, S., Sweeney, C., Oregui, B. Tapia, Tas, P., Thayyullathil, R. B., Thomas, J., Tiras, E., Torbunov, D., Tripathi, J., Trokan-Tenorio, J., Torun, Y., Urheim, J., Vahle, P., Vallari, Z., Vasel, J., Vokac, P., Vrba, T., Wallbank, M., Wang, Z., Warburton, T. K., Wetstein, M., Whittington, D., Wickremasinghe, D. A., Wojcicki, S. G., Wolcott, J., Xiao, Y., Dombara, A. Yallappa, Yonehara, K., Yu, S., Yu, Y., Zadorozhnyy, S., Zalesak, J., Zhang, Y., Zwaska, R.

论文摘要

我们报告了在Nova实验的FAR探测器的95天暴露中搜索宇宙射线通量的磁性单极成分,这是一个14 kt分割的液体闪烁剂检测器,主要旨在观察GEV规模的电子中微子。没有观察到与单极一致的事件,设定了$ 2 \ times 10^{ - 14} \ Mathrm {cm^{ - 2} s^{ - 1} sr^{ - 1}} $在90%C.L.的上限。对于单极速度$ 6 \ times 10^{ - 4} <β<5 \ times 10^{ - 3} $,质量大于$ 5 \ times 10^{8} $ gev。由于Nova的小覆盖量为3米,因此该约束涵盖了以前未开发的低质量区域。

We report a search for a magnetic monopole component of the cosmic-ray flux in a 95-day exposure of the NOvA experiment's Far Detector, a 14 kt segmented liquid scintillator detector designed primarily to observe GeV-scale electron neutrinos. No events consistent with monopoles were observed, setting an upper limit on the flux of $2\times 10^{-14} \mathrm{cm^{-2}s^{-1}sr^{-1}}$ at 90% C.L. for monopole speed $6\times 10^{-4} < β< 5\times 10^{-3}$ and mass greater than $5\times 10^{8}$ GeV. Because of NOvA's small overburden of 3 meters-water equivalent, this constraint covers a previously unexplored low-mass region.

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