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First application of a liquid argon time projection chamber for the search for intranuclear neutron-antineutron transitions and annihilation in $^{40}$Ar using the MicroBooNE detector

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Auteurs principaux:	MicroBooNE collaboration, Abratenko, P., Alterkait, O., Aldana, D. Andrade, Arellano, L., Asaadi, J., Ashkenazi, A., Balasubramanian, S., Baller, B., Barr, G., Barrow, D., Barrow, J., Basque, V., Rodrigues, O. Benevides, Berkman, S., Bhanderi, A., Bhat, A., Bhattacharya, M., Bishai, M., Blake, A., Bogart, B., Bolton, T., Book, J. Y., Camilleri, L., Cao, Y., Caratelli, D., Terrazas, I. Caro, Cavanna, F., Cerati, G., Chen, Y., Conrad, J. M., Convery, M., Cooper-Troendle, L., Crespo-Anadon, J. I., Cross, R., Del Tutto, M., Dennis, S. R., Detje, P., Devitt, A., Diurba, R., Djurcic, Z., Dorrill, R., Duffy, K., Dytman, S., Eberly, B., Englezos, P., Ereditato, A., Evans, J. J., Fine, R., Finnerud, O. G., Fleming, B. T., Foppiani, N., Foreman, W., Franco, D., Furmanski, A. P., Garcia-Gamez, D., Gardiner, S., Ge, G., Gollapinni, S., Goodwin, O., Gramellini, E., Green, P., Greenlee, H., Gu, W., Guenette, R., Guzowski, P., Hagaman, L., Hen, O., Hicks, R., Hilgenberg, C., Horton-Smith, G. A., Imani, Z., Irwin, B., Itay, R., James, C., Ji, X., Jiang, L., Jo, J. H., Johnson, R. A., Jwa, Y. J., Kalra, D., Kamp, N., Karagiorgi, G., Ketchum, W., Kirby, M., Kobilarcik, T., Kreslo, I., Lepetic, I., Li, J. -Y., Li, K., Li, Y., Lin, K., Littlejohn, B. R., Liu, H., Louis, W. C., Luo, X., Mariani, C., Marsden, D., Marshall, J., Martinez, N., Caicedo, D. A. Martinez, Martynenko, S., Mastbaum, A., McConkey, N., Meddage, V., Micallef, J., Miller, K., Mistry, K., Mohayai, T., Mogan, A., Mooney, M., Moor, A. F., Moore, C. D., Lepin, L. Mora, Moudgalya, M. M., Babu, S. Mulleria, Naples, D., Navrer-Agasson, A., Nayak, N., Nebot-Guinot, M., Nowak, J., Oza, N., Palamara, O., Pallat, N., Paolone, V., Papadopoulou, A., Papavassiliou, V., Parkinson, H., Pate, S. F., Patel, N., Pavlovic, Z., Piasetzky, E., Ponce-Pinto, I., Pophale, I., Qian, X., Raaf, J. L., Radeka, V., Rafique, A., Reggiani-Guzzo, M., Ren, L., Rochester, L., Rondon, J. Rodriguez, Rosenberg, M., Ross-Lonergan, M., von Rohr, C. Rudolph, Safa, I., Scanavini, G., Schmitz, D. W., Schukraft, A., Seligman, W., Shaevitz, M. H., Sharankova, R., Shi, J., Snider, E. L., Soderberg, M., Soldner-Rembold, S., Spitz, J., Stancari, M., John, J. St., Strauss, T., Szelc, A. M., Tang, W., Taniuchi, N., Terao, K., Thorpe, C., Torbunov, D., Totani, D., Toups, M., Tsai, Y. -T., Tyler, J., Uchida, M. A., Usher, T., Viren, B., Weber, M., Wei, H., White, A. J., Wolbers, S., Wongjirad, T., Wospakrik, M., Wresilo, K., Wright, N., Wu, W., Yandel, E., Yang, T., Yates, L. E., Yu, H. W., Zeller, G. P., Zennamo, J., Zhang, C.
Format:	Preprint
Publié:	2023
Sujets:	High Energy Physics - Experiment High Energy Physics - Phenomenology
Accès en ligne:	Acceder al recurso
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author	MicroBooNE collaboration Abratenko, P. Alterkait, O. Aldana, D. Andrade Arellano, L. Asaadi, J. Ashkenazi, A. Balasubramanian, S. Baller, B. Barr, G. Barrow, D. Barrow, J. Basque, V. Rodrigues, O. Benevides Berkman, S. Bhanderi, A. Bhat, A. Bhattacharya, M. Bishai, M. Blake, A. Bogart, B. Bolton, T. Book, J. Y. Camilleri, L. Cao, Y. Caratelli, D. Terrazas, I. Caro Cavanna, F. Cerati, G. Chen, Y. Conrad, J. M. Convery, M. Cooper-Troendle, L. Crespo-Anadon, J. I. Cross, R. Del Tutto, M. Dennis, S. R. Detje, P. Devitt, A. Diurba, R. Djurcic, Z. Dorrill, R. Duffy, K. Dytman, S. Eberly, B. Englezos, P. Ereditato, A. Evans, J. J. Fine, R. Finnerud, O. G. Fleming, B. T. Foppiani, N. Foreman, W. Franco, D. Furmanski, A. P. Garcia-Gamez, D. Gardiner, S. Ge, G. Gollapinni, S. Goodwin, O. Gramellini, E. Green, P. Greenlee, H. Gu, W. Guenette, R. Guzowski, P. Hagaman, L. Hen, O. Hicks, R. Hilgenberg, C. Horton-Smith, G. A. Imani, Z. Irwin, B. Itay, R. James, C. Ji, X. Jiang, L. Jo, J. H. Johnson, R. A. Jwa, Y. J. Kalra, D. Kamp, N. Karagiorgi, G. Ketchum, W. Kirby, M. Kobilarcik, T. Kreslo, I. Lepetic, I. Li, J. -Y. Li, K. Li, Y. Lin, K. Littlejohn, B. R. Liu, H. Louis, W. C. Luo, X. Mariani, C. Marsden, D. Marshall, J. Martinez, N. Caicedo, D. A. Martinez Martynenko, S. Mastbaum, A. McConkey, N. Meddage, V. Micallef, J. Miller, K. Mistry, K. Mohayai, T. Mogan, A. Mooney, M. Moor, A. F. Moore, C. D. Lepin, L. Mora Moudgalya, M. M. Babu, S. Mulleria Naples, D. Navrer-Agasson, A. Nayak, N. Nebot-Guinot, M. Nowak, J. Oza, N. Palamara, O. Pallat, N. Paolone, V. Papadopoulou, A. Papavassiliou, V. Parkinson, H. Pate, S. F. Patel, N. Pavlovic, Z. Piasetzky, E. Ponce-Pinto, I. Pophale, I. Qian, X. Raaf, J. L. Radeka, V. Rafique, A. Reggiani-Guzzo, M. Ren, L. Rochester, L. Rondon, J. Rodriguez Rosenberg, M. Ross-Lonergan, M. von Rohr, C. Rudolph Safa, I. Scanavini, G. Schmitz, D. W. Schukraft, A. Seligman, W. Shaevitz, M. H. Sharankova, R. Shi, J. Snider, E. L. Soderberg, M. Soldner-Rembold, S. Spitz, J. Stancari, M. John, J. St. Strauss, T. Szelc, A. M. Tang, W. Taniuchi, N. Terao, K. Thorpe, C. Torbunov, D. Totani, D. Toups, M. Tsai, Y. -T. Tyler, J. Uchida, M. A. Usher, T. Viren, B. Weber, M. Wei, H. White, A. J. Wolbers, S. Wongjirad, T. Wospakrik, M. Wresilo, K. Wright, N. Wu, W. Yandel, E. Yang, T. Yates, L. E. Yu, H. W. Zeller, G. P. Zennamo, J. Zhang, C.
author_facet	MicroBooNE collaboration Abratenko, P. Alterkait, O. Aldana, D. Andrade Arellano, L. Asaadi, J. Ashkenazi, A. Balasubramanian, S. Baller, B. Barr, G. Barrow, D. Barrow, J. Basque, V. Rodrigues, O. Benevides Berkman, S. Bhanderi, A. Bhat, A. Bhattacharya, M. Bishai, M. Blake, A. Bogart, B. Bolton, T. Book, J. Y. Camilleri, L. Cao, Y. Caratelli, D. Terrazas, I. Caro Cavanna, F. Cerati, G. Chen, Y. Conrad, J. M. Convery, M. Cooper-Troendle, L. Crespo-Anadon, J. I. Cross, R. Del Tutto, M. Dennis, S. R. Detje, P. Devitt, A. Diurba, R. Djurcic, Z. Dorrill, R. Duffy, K. Dytman, S. Eberly, B. Englezos, P. Ereditato, A. Evans, J. J. Fine, R. Finnerud, O. G. Fleming, B. T. Foppiani, N. Foreman, W. Franco, D. Furmanski, A. P. Garcia-Gamez, D. Gardiner, S. Ge, G. Gollapinni, S. Goodwin, O. Gramellini, E. Green, P. Greenlee, H. Gu, W. Guenette, R. Guzowski, P. Hagaman, L. Hen, O. Hicks, R. Hilgenberg, C. Horton-Smith, G. A. Imani, Z. Irwin, B. Itay, R. James, C. Ji, X. Jiang, L. Jo, J. H. Johnson, R. A. Jwa, Y. J. Kalra, D. Kamp, N. Karagiorgi, G. Ketchum, W. Kirby, M. Kobilarcik, T. Kreslo, I. Lepetic, I. Li, J. -Y. Li, K. Li, Y. Lin, K. Littlejohn, B. R. Liu, H. Louis, W. C. Luo, X. Mariani, C. Marsden, D. Marshall, J. Martinez, N. Caicedo, D. A. Martinez Martynenko, S. Mastbaum, A. McConkey, N. Meddage, V. Micallef, J. Miller, K. Mistry, K. Mohayai, T. Mogan, A. Mooney, M. Moor, A. F. Moore, C. D. Lepin, L. Mora Moudgalya, M. M. Babu, S. Mulleria Naples, D. Navrer-Agasson, A. Nayak, N. Nebot-Guinot, M. Nowak, J. Oza, N. Palamara, O. Pallat, N. Paolone, V. Papadopoulou, A. Papavassiliou, V. Parkinson, H. Pate, S. F. Patel, N. Pavlovic, Z. Piasetzky, E. Ponce-Pinto, I. Pophale, I. Qian, X. Raaf, J. L. Radeka, V. Rafique, A. Reggiani-Guzzo, M. Ren, L. Rochester, L. Rondon, J. Rodriguez Rosenberg, M. Ross-Lonergan, M. von Rohr, C. Rudolph Safa, I. Scanavini, G. Schmitz, D. W. Schukraft, A. Seligman, W. Shaevitz, M. H. Sharankova, R. Shi, J. Snider, E. L. Soderberg, M. Soldner-Rembold, S. Spitz, J. Stancari, M. John, J. St. Strauss, T. Szelc, A. M. Tang, W. Taniuchi, N. Terao, K. Thorpe, C. Torbunov, D. Totani, D. Toups, M. Tsai, Y. -T. Tyler, J. Uchida, M. A. Usher, T. Viren, B. Weber, M. Wei, H. White, A. J. Wolbers, S. Wongjirad, T. Wospakrik, M. Wresilo, K. Wright, N. Wu, W. Yandel, E. Yang, T. Yates, L. E. Yu, H. W. Zeller, G. P. Zennamo, J. Zhang, C.
contents	We present a novel methodology to search for intranuclear neutron-antineutron transition ($n\rightarrow\bar{n}$) followed by $\bar{n}$-nucleon annihilation within an $^{40}$Ar nucleus, using the MicroBooNE liquid argon time projection chamber (LArTPC) detector. A discovery of $n\rightarrow\bar{n}$ transition or a new best limit on the lifetime of this process would either constitute physics beyond the Standard Model or greatly constrain theories of baryogenesis, respectively. The approach presented in this paper makes use of deep learning methods to select $n\rightarrow\bar{n}$ events based on their unique features and differentiate them from cosmogenic backgrounds. The achieved signal and background efficiencies are (70.22$\pm$6.04)\% and (0.0020$\pm$0.0003)\%, respectively. A demonstration of a search is performed with a data set corresponding to an exposure of $3.32 \times10^{26}\,$neutron-years, and where the background rate is constrained through direct measurement, assuming the presence of a negligible signal. With this approach, no excess of events over the background prediction is observed, setting a demonstrative lower bound on the $n\rightarrow\bar{n}$ lifetime in $^{40}$Ar of $τ_{\textrm{m}} \gtrsim 1.1\times10^{26}\,$years, and on the free $n\rightarrow\bar{n}$ transition time of $τ_{\textrm{\nnbar}} \gtrsim 2.6\times10^{5}\,$s, each at the $90\%$ confidence level. This analysis represents a first-ever proof-of-principle demonstration of the ability to search for this rare process in LArTPCs with high efficiency and low background.
format	Preprint
id	arxiv_https___arxiv_org_abs_2308_03924
institution	arXiv
publishDate	2023
record_format	arxiv
spellingShingle	First application of a liquid argon time projection chamber for the search for intranuclear neutron-antineutron transitions and annihilation in $^{40}$Ar using the MicroBooNE detector MicroBooNE collaboration Abratenko, P. Alterkait, O. Aldana, D. Andrade Arellano, L. Asaadi, J. Ashkenazi, A. Balasubramanian, S. Baller, B. Barr, G. Barrow, D. Barrow, J. Basque, V. Rodrigues, O. Benevides Berkman, S. Bhanderi, A. Bhat, A. Bhattacharya, M. Bishai, M. Blake, A. Bogart, B. Bolton, T. Book, J. Y. Camilleri, L. Cao, Y. Caratelli, D. Terrazas, I. Caro Cavanna, F. Cerati, G. Chen, Y. Conrad, J. M. Convery, M. Cooper-Troendle, L. Crespo-Anadon, J. I. Cross, R. Del Tutto, M. Dennis, S. R. Detje, P. Devitt, A. Diurba, R. Djurcic, Z. Dorrill, R. Duffy, K. Dytman, S. Eberly, B. Englezos, P. Ereditato, A. Evans, J. J. Fine, R. Finnerud, O. G. Fleming, B. T. Foppiani, N. Foreman, W. Franco, D. Furmanski, A. P. Garcia-Gamez, D. Gardiner, S. Ge, G. Gollapinni, S. Goodwin, O. Gramellini, E. Green, P. Greenlee, H. Gu, W. Guenette, R. Guzowski, P. Hagaman, L. Hen, O. Hicks, R. Hilgenberg, C. Horton-Smith, G. A. Imani, Z. Irwin, B. Itay, R. James, C. Ji, X. Jiang, L. Jo, J. H. Johnson, R. A. Jwa, Y. J. Kalra, D. Kamp, N. Karagiorgi, G. Ketchum, W. Kirby, M. Kobilarcik, T. Kreslo, I. Lepetic, I. Li, J. -Y. Li, K. Li, Y. Lin, K. Littlejohn, B. R. Liu, H. Louis, W. C. Luo, X. Mariani, C. Marsden, D. Marshall, J. Martinez, N. Caicedo, D. A. Martinez Martynenko, S. Mastbaum, A. McConkey, N. Meddage, V. Micallef, J. Miller, K. Mistry, K. Mohayai, T. Mogan, A. Mooney, M. Moor, A. F. Moore, C. D. Lepin, L. Mora Moudgalya, M. M. Babu, S. Mulleria Naples, D. Navrer-Agasson, A. Nayak, N. Nebot-Guinot, M. Nowak, J. Oza, N. Palamara, O. Pallat, N. Paolone, V. Papadopoulou, A. Papavassiliou, V. Parkinson, H. Pate, S. F. Patel, N. Pavlovic, Z. Piasetzky, E. Ponce-Pinto, I. Pophale, I. Qian, X. Raaf, J. L. Radeka, V. Rafique, A. Reggiani-Guzzo, M. Ren, L. Rochester, L. Rondon, J. Rodriguez Rosenberg, M. Ross-Lonergan, M. von Rohr, C. Rudolph Safa, I. Scanavini, G. Schmitz, D. W. Schukraft, A. Seligman, W. Shaevitz, M. H. Sharankova, R. Shi, J. Snider, E. L. Soderberg, M. Soldner-Rembold, S. Spitz, J. Stancari, M. John, J. St. Strauss, T. Szelc, A. M. Tang, W. Taniuchi, N. Terao, K. Thorpe, C. Torbunov, D. Totani, D. Toups, M. Tsai, Y. -T. Tyler, J. Uchida, M. A. Usher, T. Viren, B. Weber, M. Wei, H. White, A. J. Wolbers, S. Wongjirad, T. Wospakrik, M. Wresilo, K. Wright, N. Wu, W. Yandel, E. Yang, T. Yates, L. E. Yu, H. W. Zeller, G. P. Zennamo, J. Zhang, C. High Energy Physics - Experiment High Energy Physics - Phenomenology We present a novel methodology to search for intranuclear neutron-antineutron transition ($n\rightarrow\bar{n}$) followed by $\bar{n}$-nucleon annihilation within an $^{40}$Ar nucleus, using the MicroBooNE liquid argon time projection chamber (LArTPC) detector. A discovery of $n\rightarrow\bar{n}$ transition or a new best limit on the lifetime of this process would either constitute physics beyond the Standard Model or greatly constrain theories of baryogenesis, respectively. The approach presented in this paper makes use of deep learning methods to select $n\rightarrow\bar{n}$ events based on their unique features and differentiate them from cosmogenic backgrounds. The achieved signal and background efficiencies are (70.22$\pm$6.04)\% and (0.0020$\pm$0.0003)\%, respectively. A demonstration of a search is performed with a data set corresponding to an exposure of $3.32 \times10^{26}\,$neutron-years, and where the background rate is constrained through direct measurement, assuming the presence of a negligible signal. With this approach, no excess of events over the background prediction is observed, setting a demonstrative lower bound on the $n\rightarrow\bar{n}$ lifetime in $^{40}$Ar of $τ_{\textrm{m}} \gtrsim 1.1\times10^{26}\,$years, and on the free $n\rightarrow\bar{n}$ transition time of $τ_{\textrm{\nnbar}} \gtrsim 2.6\times10^{5}\,$s, each at the $90\%$ confidence level. This analysis represents a first-ever proof-of-principle demonstration of the ability to search for this rare process in LArTPCs with high efficiency and low background.
title	First application of a liquid argon time projection chamber for the search for intranuclear neutron-antineutron transitions and annihilation in $^{40}$Ar using the MicroBooNE detector
topic	High Energy Physics - Experiment High Energy Physics - Phenomenology
url	https://arxiv.org/abs/2308.03924