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Search for a Dark Photon and an Invisible Dark Higgs Boson in muon(+) muon(-) and Missing Energy Final States with the Belle II Experimentopen access

Authors
Abudinen, F.Adachi, I.Aggarwal, L.Aihara, H.Akopov, N.Aloisio, A.Ky, N. AnhAsner, D. M.Atmacan, H.Aushev, T.Aushev, V.Babu, V.Bahinipati, S.Bambade, P.Banerjee, Sw.Bansal, S.Baudot, J.Baur, A.Beaubien, A.Becker, J.Behera, P. K.Bennett, J. V.Bernieri, E.Bernlochner, F. U.Bertemes, M.Bertholet, E.Bessner, M.Bhuyan, B.Bianchi, F.Bilka, T.Biswas, D.Bobrov, A.Bolz, D. Bodrov A.Bozek, A.Bracko, M.Branchini, P.Browder, T. E.Budano, A.Bussino, S.Campajola, M.Casarosa, G.Cecchi, C.Chekelian, V.Chen, C.Chen, Y. Q.Cheon, B. G.Chilikin, K.Chirapatpimol, K.Cho, H. -e.Cho, K.Cho, S. -j.Choi, S. -k.Choudhury, S.Cinabro, D.Corona, L.Cunliffe, S.Marino, F. Dattola G. deDe Nardo, G.De Nuccio, M.De Pietro, G.de Sangro, R.Destefanis, M.Dey, S.De Yta-Hernandez, A.Dhamija, R.Di Canto, A.Di Capua, F.Dingfelder, J.Dolezal, Z.Jimenez, I. DominguezV. Dong, T.Dorigo, M.Dort, K.Dossett, D.Dreyer, S.Dubey, S.Dujany, G.Eliachevitch, M.Epifanov, D.Feichtinger, P.Ferber, T.Ferlewicz, D.Fillinger, T.Finck, C.Finocchiaro, G.Flood, K.Fodor, A.Forti, F.Frey, A.Fulsom, B. G.Ganiev, E.Garcia-Hernandez, M.Gaur, V.Gaz, A.Gellrich, A.Giordano, R.Giri, A.Gobbo, B.Godang, R.Goldenzweig, P.Gradl, W.Granderath, S.Graziani, E.Greenwald, D.Gu, T.Gudkova, K.Guilliams, J.Hadjivasiliou, C.Hara, K.Hara, T.Hayasaka, K.Hayashii, H.Hazra, S.Hearty, C.Hedges, M. T.Cruz, I. Heredia de laVillanueva, M. HernandezHershenhorn, A.Higuchi, T.Hill, E. C.Hoek, M.Hohmann, M.Hsu, C. -l.Iijima, T.Inami, K.Inguglia, G.Ipsita, N.Ishikawa, A.Ito, S.Itoh, R.Iwasaki, M.Jackson, P.Jacobs, W. W.Jaffe, D. E.Jang, E. -j.Ji, Q. P.Jia, S.Jin, Y.Junkerkalefeld, H.Kakuno, H.Kaliyar, A. B.Kandra, J.Kang, K. H.Karl, R.Karyan, G.Kawasaki, T.Ketter, C.Kichimi, H.Kiesling, C.Kim, C. -h.Kim, D. Y.Kim, K. -h.Kim, Y. -k.Kinoshita, K.Kodys, P.Koga, T.Kohani, S.Kojima, K.Konno, T.Korobov, A.Korpar, S.Kovalenko, E.Kowalewski, R.Kraetzschmar, T. M. G.Krizan, P.Krokovny, P.Kuhr, T.Kumar, R.Kumara, K.Kunigo, T.Kwon, Y. -j.Lacaprara, S.Lai, Y. -t.Lam, T.Lange, J. S.Laurenza, M.Leboucher, R.Lee, S. C.Li, L. K.Li, Y. B.Libby, J.Lieret, K.Liu, Q. Y.Liventsev, D.Longo, S.Lozar, A.Lueck, T.Lyu, C.Maggiora, M.Maiti, R.Maity, S.Manfredi, R.Manoni, E.Marcello, S.Marinas, C.Martel, L.Martini, A.Massaccesi, L.Masuda, M.Matsuoka, K.McKenna, J. A.Meier, F.Merola, M.Metzner, F.Milesi, M.Miller, C.Miyabayashi, K.Mohanty, G. B.Molina-Gonzalez, N.Moneta, S.Moon, H.Mrvar, M.Nakamura, I.Nakamura, K. R.Nakao, M.Nakayama, H.Charan, A. NarimaniNaruki, M.Natkaniec, Z.Natochii, A.Nayak, L.Nayak, M.Nisar, N. K.Nishida, S.Nishimura, K.Ogawa, S.Ono, H.Oskin, P.Pakhlova, G.Paladino, A.Panta, A.Pardi, S.Parham, K.Park, H.Park, S. -h.Passeri, A.Patra, S.Paul, S.Pedlar, T. K.Piccolo, M.Piilonen, L. E.Angioni, G. PinnaPodesta-Lerma, P. L. M.Podobnik, T.Pokharel, S.Polat, L.Praz, C.Prell, S.Prencipe, E.Prim, M. T.Purwar, H.Rad, N.Rados, P.Raiz, S.Morales, A. RamirezReif, M.Reiter, S.Remnev, M.Ripp-Baudot, I.Rizzo, G.Robertson, S. H.Perez, D. RodriguezRoney, J. M.Rostomyan, A.Rout, N.Sahoo, D.Sanders, D. A.Sandilya, S.Santelj, L.Sato, Y.Scavino, B.Schueler, J.Schwanda, C.Seino, Y.Selce, A.Senyo, K.Serrano, J.Sevior, M. E.Sfienti, C.Shillington, T.Shiu, J. -g.Sibidanov, A.Simon, F.Singh, J. B.Skorupa, J.Soffer, A.Sokolov, A.Solovieva, E.Spataro, S.Spruck, B.Staric, M.Stefkova, S.Stottler, Z. S.Stroili, R.Sumihama, M.Sumisawa, K.Sutcliffe, W.Suzuki, S. Y.Svidras, H.Tabata, M.Takizawa, M.Tamponi, U.Tanaka, S.Tanida, K.Tanigawa, H.Tenchini, F.Tiwary, R.Tonelli, D.Torassa, E.Toutounji, N.Trabelsi, K.Uchida, M.Ueda, I.Uematsu, Y.Uglov, T.Unger, K.Unno, Y.Uno, K.Uno, S.Ushiroda, Y.Vahsen, S. E.van Tonder, R.Varner, G. S.Varvell, K. E.Vinokurova, A.Vitale, L.Vobbilisetti, V.Waheed, E.Wakeling, H. M.Wang, E.Wang, M. -z.Warburton, A.Watanabe, M.Watanuki, S.Welsch, M.Wessel, C.Windel, H.Won, E.Xu, X. P.Yabsley, B. D.Yamada, S.Yan, W.Yang, S. B.Ye, H.Yin, J. H.Yoshihara, K.Yuan, C. Z.Yusa, Y.Zani, L.Zhang, Y.Zhilich, V.Zhou, Q. D.Zhou, X. Y.Zhukova, V. I.Zlebcik, R.Belle II Collaboration
Issue Date
Feb-2023
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v.130, no.7
Journal Title
PHYSICAL REVIEW LETTERS
Volume
130
Number
7
URI
http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/44007
DOI
10.1103/PhysRevLett.130.071804
ISSN
0031-9007
Abstract
The dark photon A' and the dark Higgs boson h' are hypothetical particles predicted in many dark sector models. We search for the simultaneous production of A' and h' in the dark Higgsstrahlung process e+e- -> A'h' with A' -> mu+mu- and h' invisible in electron-positron collisions at a center-of-mass energy of 10.58 GeV in data collected by the Belle II experiment in 2019. With an integrated luminosity of 8.34 fb-1, we observe no evidence for signal. We obtain exclusion limits at 90% Bayesian credibility in the range of 1.7-5.0 fb on the cross section and in the range of 1.7 x 10-8-200 x 10-8 on the effective coupling epsilon 2 x alpha D for the A' mass in the range of 4.0 GeV/c2 < MA' < 9.7 GeV/c2 and for the h' mass Mh' < MA', where epsilon is the mixing strength between the standard model and the dark photon and alpha D is the coupling of the dark photon to the dark Higgs boson. Our limits are the first in this mass range.
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Kim, D. Y.
College of Natural Sciences (Department of Physics)
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