Search for a τ^{+}τ^{-} Resonance in e^{+}e^{-}→μ^{+}μ^{-}τ^{+}τ^{-} Events with the Belle II Experiment.
作者信息
Adachi I, Adamczyk K, Aggarwal L, Ahmed H, Aihara H, Akopov N, Aloisio A, Anh Ky N, Asner D M, Atmacan H, Aushev T, Aushev V, Aversano M, Babu V, Bae H, Bahinipati S, Bambade P, Banerjee Sw, Bansal S, Barrett M, Baudot J, Bauer M, Baur A, Beaubien A, Becker J, Behera P K, Bennett J V, Bernieri E, Bernlochner F U, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bhardwaj V, Bhuyan B, Bianchi F, Bilka T, Bilokin S, Biswas D, Bobrov A, Bodrov D, Bolz A, Borah J, Bozek A, Bračko M, Branchini P, Browder T E, Budano A, Bussino S, Campajola M, Cao L, Casarosa G, Cecchi C, Cerasoli J, Chang M-C, Chang P, Cheaib R, Cheema P, Chekelian V, 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, Cochran J, Corona L, Cremaldi L M, Cunliffe S, Czank T, Das S, Dattola F, De La Cruz-Burelo E, De La Motte S A, de Marino G, De 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, Doležal Z, Domínguez Jiménez I, Dong T V, Dorigo M, Dort K, Dossett D, Dreyer S, Dubey S, Dujany G, Ecker P, Eliachevitch M, Epifanov D, Feichtinger P, Ferber T, Ferlewicz D, Fillinger T, Finck C, Finocchiaro G, Fodor A, Forti F, Frey A, Fulsom B G, Gabrielli A, Ganiev E, Garcia-Hernandez M, Garmash A, Gaudino G, Gaur V, Gaz A, Gellrich A, Ghevondyan G, Ghosh D, Ghumaryan H, Giakoustidis G, Giordano R, Giri A, Glazov A, Gobbo B, Godang R, Gogota O, Goldenzweig P, Gradl W, Grammatico T, Granderath S, Graziani E, Greenwald D, Gruberová Z, Gu T, Guan Y, Gudkova K, Guilliams J, Halder S, Han Y, Hara T, Hayasaka K, Hayashii H, Hazra S, Hearty C, Hedges M T, Heredia de la Cruz I, Hernández Villanueva M, Hershenhorn A, Higuchi T, Hill E C, Hirata H, Hoek M, Hohmann M, Hsu C-L, Humair T, 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, Johnson A, Joo K K, Junkerkalefeld H, Kakuno H, Kaleta M, Kalita D, Kaliyar A B, Kandra J, Kang K H, Kang S, Karl R, Karyan G, Kawasaki T, Keil F, Ketter C, Kiesling C, Kim C-H, Kim D Y, Kim K-H, Kim Y-K, Kindo H, Kodyš P, Koga T, Kohani S, Kojima K, Konno T, Korobov A, Korpar S, Kovalenko E, Kowalewski R, Kraetzschmar T M G, Križan P, Krokovny P, Kuhr T, Kumar J, Kumar M, Kumar R, Kumara K, Kunigo T, Kuzmin A, Kwon Y-J, Lacaprara S, Lai Y-T, Lam T, Lanceri L, Lange J S, Laurenza M, Lautenbach K, Leboucher R, Le Diberder F R, Leitl P, Levit D, Lewis P M, Li C, Li L K, Li Y B, Libby J, Lieret K, Liu Q Y, Liu Z Q, Liventsev D, Longo S, Lozar A, Lueck T, Lyu C, Ma Y, Maggiora M, Maharana S P, Maiti R, Maity S, Manfredi R, Manoni E, Manthei A C, Mantovano M, Marcantonio D, Marcello S, Marinas C, Martel L, Martellini C, Martini A, Martinov T, Massaccesi L, Masuda M, Matsuda T, Matsuoka K, Matvienko D, Maurya S K, McKenna J A, Mehta R, Merola M, Metzner F, Milesi M, Miller C, Mirra M, Miyabayashi K, Miyake H, Mizuk R, Mohanty G B, Molina-Gonzalez N, Mondal S, Moneta S, Moser H-G, Mrvar M, Mussa R, Nakamura I, Nakamura K R, Nakao M, Nakayama H, Nakazawa H, Nakazawa Y, Narimani Charan A, Naruki M, Narwal D, Natkaniec Z, Natochii A, Nayak L, Nayak M, Nazaryan G, Niebuhr C, Nisar N K, Nishida S, Ogawa S, Ono H, Onuki Y, Oskin P, Otani F, Pakhlov P, Pakhlova G, Paladino A, Panta A, Paoloni E, Pardi S, Parham K, Park J, Park S-H, Paschen B, Passeri A, Patra S, Paul S, Pedlar T K, Peruzzi I, Peschke R, Pestotnik R, Pham F, Piccolo M, Piilonen L E, Pinna Angioni G, Podesta-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, Raeuber G, Raiz S, Ramirez Morales A, Reif M, Reiter S, Remnev M, Ripp-Baudot I, Rizzo G, Rizzuto L B, Robertson S H, Rodríguez Pérez D, Roehrken M, Roney J M, Rostomyan A, Rout N, Russo G, Sahoo D, Sanders D A, Sandilya S, Sangal A, Santelj L, Sato Y, Savinov V, Scavino B, Schnepf M, Schueler J, Schwanda C, Seino Y, Selce A, Senyo K, Serrano J, Sevior M E, Sfienti C, Shan W, Sharma C, Shen C P, Shi X D, Shillington T, Shiu J-G, Shtol D, Shwartz B, Sibidanov A, Simon F, Singh J B, Skorupa J, Sobie R J, Sobotzik M, Soffer A, Sokolov A, Solovieva E, Spataro S, Spruck B, Starič M, Stavroulakis P, Stefkova S, Stottler Z S, Stroili R, Strube J, Sue Y, Sumihama M, Sumisawa K, Sutcliffe W, Suzuki S Y, Svidras H, Takahashi M, Takizawa M, Tamponi U, Tanaka S, Tanida K, Tanigawa H, Tenchini F, Thaller A, Tiwary R, Tonelli D, Torassa E, Toutounji N, Trabelsi K, Tsaklidis I, Uchida M, Ueda I, Uematsu Y, Uglov T, Unger K, Unno Y, Uno K, Uno S, Urquijo P, Ushiroda Y, Vahsen S E, van Tonder R, Varner G S, Varvell K E, Vinokurova A, Vismaya V S, Vitale L, Vobbilisetti V, Volpe R, Vossen A, Wach B, Wakai M, Wakeling H M, Wallner S, Wang E, Wang M-Z, Wang X L, Wang Z, Warburton A, Watanabe M, Watanuki S, Welsch M, Wessel C, Won E, Xu X P, Yabsley B D, Yamada S, Yan W, Yang S B, Ye H, Yelton J, Yin J H, Yook Y M, Yoshihara K, Yuan C Z, Yusa Y, Zani L, Zhai Y, Zhang Y, Zhilich V, Zhou J S, Zhou Q D, Zhou X Y, Zhukova V I, Žlebčík R
出版信息
Phys Rev Lett. 2023 Sep 22;131(12):121802. doi: 10.1103/PhysRevLett.131.121802.
We report the first search for a nonstandard-model resonance decaying into τ pairs in e^{+}e^{-}→μ^{+}μ^{-}τ^{+}τ^{-} events in the 3.6-10 GeV/c^{2} mass range. We use a 62.8 fb^{-1} sample of e^{+}e^{-} collisions collected at a center-of-mass energy of 10.58 GeV by the Belle II experiment at the SuperKEKB collider. The analysis probes three different models predicting a spin-1 particle coupling only to the heavier lepton families, a Higgs-like spin-0 particle that couples preferentially to charged leptons (leptophilic scalar), and an axionlike particle, respectively. We observe no evidence for a signal and set exclusion limits at 90% confidence level on the product of cross section and branching fraction into τ pairs, ranging from 0.7 to 24 fb, and on the couplings of these processes. We obtain world-leading constraints on the couplings for the leptophilic scalar model for masses above 6.5 GeV/c^{2} and for the axionlike particle model over the entire mass range.
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