Search for a dark leptophilic scalar produced in association with τ+τ- pair in e+e- annihilation at center-of-mass energies near 10.58 GeV

D. Biswas; Sw Banerjee; I. Adachi; H. Aihara; D. M. Asner; T. Aushev; R. Ayad; V. Babu; P. Behera; J. Bennett; M. Bessner; V. Bhardwaj; B. Bhuyan; T. Bilka; D. Bodrov; J. Borah; A. Bozek; M. Bračko; P. Branchini; T. E. Browder; A. Budano; M. Campajola; D. Červenkov; M. C. Chang; P. Chang; B. G. Cheon; K. Chilikin; H. E. Cho; K. Cho; S. K. Choi; Y. Choi; S. Choudhury; D. Cinabro; S. Das; G. De Nardo; G. De Pietro; R. Dhamija; F. Di Capua; J. Dingfelder; Z. DoleŽal; T. V. Dong; S. Dubey; P. Ecker; D. Epifanov; T. Ferber; B. G. Fulsom; V. Gaur; A. Garmash; A. Giri; P. Goldenzweig; E. Graziani; Y. Guan; K. Gudkova; C. Hadjivasiliou; K. Hayasaka; H. Hayashii; S. Hazra; M. T. Hedges; D. Herrmann; M. Hernández Villanueva; W. S. Hou; C. L. Hsu; K. Inami; G. Inguglia; N. Ipsita; A. Ishikawa; R. Itoh; M. Iwasaki; W. W. Jacobs; Q. P. Ji; S. Jia; Y. Jin; K. K. Joo; A. B. Kaliyar; C. Kiesling; C. H. Kim; D. Y. Kim; K. H. Kim; Y. J. Kim; Y. K. Kim; P. Kodyš; T. Konno; A. Korobov; S. Korpar; P. KriŽan; P. Krokovny; M. Kumar; K. Kumara; Y. J. Kwon; Y. T. Lai; M. Laurenza; S. C. Lee; D. Levit; J. Li; L. K. Li; Y. Li; L. Li Gioi; J. Libby; K. Lieret; Y. R. Lin; D. Liventsev; T. Luo; Y. Ma; M. Masuda; S. K. Maurya; F. Meier; M. Merola; F. Metzner; K. Miyabayashi; R. Mizuk; I. Nakamura; M. Nakao; Z. Natkaniec; A. Natochii; L. Nayak; M. Niiyama; N. K. Nisar; S. Nishida; S. Ogawa; H. Ono; P. Pakhlov; G. Pakhlova; S. Pardi; H. Park; J. Park; S. H. Park; A. Passeri; S. Patra; S. Paul; R. Pestotnik; L. E. Piilonen; T. Podobnik; E. Prencipe; M. T. Prim; N. Rout; G. Russo; S. Sandilya; L. Santelj; V. Savinov; G. Schnell; C. Schwanda; Y. Seino; K. Senyo; M. E. Sevior; W. Shan; C. Sharma; J. G. Shiu; B. Shwartz; J. B. Singh; A. Sokolov; E. Solovieva; M. Starič; Z. S. Stottler; M. Sumihama; M. Takizawa; K. Tanida; F. Tenchini; K. Trabelsi; M. Uchida; T. Uglov; Y. Unno; K. Uno; S. Uno; P. Urquijo; A. Vinokurova; D. Wang; E. Wang; S. Watanuki; E. Won; X. Xu; B. D. Yabsley; W. Yan; J. H. Yin; C. Z. Yuan; L. Yuan; Z. P. Zhang; V. Zhilich; V. Zhukova; V. Zhulanov

doi:10.1103/PhysRevD.109.032002

Search for a dark leptophilic scalar produced in association with τ+τ- pair in e+e- annihilation at center-of-mass energies near 10.58 GeV

D. Biswas, Sw Banerjee, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, R. Ayad, V. Babu, P. Behera, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, T. Bilka, D. Bodrov, J. Borah, A. Bozek, M. Bračko, P. Branchini, T. E. BrowderA. Budano, M. Campajola, D. Červenkov, M. C. Chang, P. Chang, B. G. Cheon, K. Chilikin, H. E. Cho, K. Cho, S. K. Choi, Y. Choi, S. Choudhury, D. Cinabro, S. Das, G. De Nardo, G. De Pietro, R. Dhamija, F. Di Capua, J. Dingfelder, Z. DoleŽal, T. V. Dong, S. Dubey, P. Ecker, D. Epifanov, T. Ferber, B. G. Fulsom, V. Gaur, A. Garmash, A. Giri, P. Goldenzweig, E. Graziani, Y. Guan, K. Gudkova, C. Hadjivasiliou, K. Hayasaka, H. Hayashii, S. Hazra, M. T. Hedges, D. Herrmann, M. Hernández Villanueva, W. S. Hou, C. L. Hsu, K. Inami, G. Inguglia, N. Ipsita, A. Ishikawa, R. Itoh, M. Iwasaki, W. W. Jacobs, Q. P. Ji, S. Jia, Y. Jin, K. K. Joo, A. B. Kaliyar, C. Kiesling, C. H. Kim, D. Y. Kim, K. H. Kim, Y. J. Kim, Y. K. Kim, P. Kodyš, T. Konno, A. Korobov, S. Korpar, P. KriŽan, P. Krokovny, M. Kumar, K. Kumara, Y. J. Kwon, Y. T. Lai, M. Laurenza, S. C. Lee, D. Levit, J. Li, L. K. Li, Y. Li, L. Li Gioi, J. Libby, K. Lieret, Y. R. Lin, D. Liventsev, T. Luo, Y. Ma, M. Masuda, S. K. Maurya, F. Meier, M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, I. Nakamura, M. Nakao, Z. Natkaniec, A. Natochii, L. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, S. Ogawa, H. Ono, P. Pakhlov, G. Pakhlova, S. Pardi, H. Park, J. Park, S. H. Park, A. Passeri, S. Patra, S. Paul, R. Pestotnik, L. E. Piilonen, T. Podobnik, E. Prencipe, M. T. Prim, N. Rout, G. Russo, S. Sandilya, L. Santelj, V. Savinov, G. Schnell, C. Schwanda, Y. Seino, K. Senyo, M. E. Sevior, W. Shan, C. Sharma, J. G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, E. Solovieva, M. Starič, Z. S. Stottler, M. Sumihama, M. Takizawa, K. Tanida, F. Tenchini, K. Trabelsi, M. Uchida, T. Uglov, Y. Unno, K. Uno, S. Uno, P. Urquijo, A. Vinokurova, D. Wang, E. Wang, S. Watanuki, E. Won, X. Xu, B. D. Yabsley, W. Yan, J. H. Yin, C. Z. Yuan, L. Yuan, Z. P. Zhang, V. Zhilich, V. Zhukova, V. Zhulanov

Research output: Contribution to journal › Article › peer-review

Abstract

A dark leptophilic scalar (φL) is a hypothetical particle that couples only to leptons rather than quarks. We report on a search for φL in the e+e-→τ+τ-φL, φL→ℓ+ℓ-(ℓ=e,μ) process using 626 fb-1 of data collected by the Belle experiment near the ϒ(4S) resonance. We validate the backgrounds with multiple control regions in data, using a novel multiclass multivariate event classifier. In absence of a signal, we quote upper limits at the 90% confidence level on the coupling between φL and leptons. Our bounds, obtained in a blinded approach, are 19% more constraining than the previous limits, averaged over the mass range 0.04≤mφL≤6.5 GeV. We exclude the parameter space below 4 GeV favored by measurement of the anomalous magnetic moment of the muon.

Original language	English
Article number	032002
Journal	Physical Review D
Volume	109
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.109.032002
State	Published - 1 Feb 2024

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10.1103/PhysRevD.109.032002

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Biswas, D., Banerjee, S., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Ayad, R., Babu, V., Behera, P., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Bodrov, D., Borah, J., Bozek, A., Bračko, M., Branchini, P., ... Zhulanov, V. (2024). Search for a dark leptophilic scalar produced in association with τ+τ- pair in e+e- annihilation at center-of-mass energies near 10.58 GeV. Physical Review D, 109(3), Article 032002. https://doi.org/10.1103/PhysRevD.109.032002

@article{25bf09a1f86b4459a3ec2eadd6c48933,

title = "Search for a dark leptophilic scalar produced in association with τ+τ- pair in e+e- annihilation at center-of-mass energies near 10.58 GeV",

abstract = "A dark leptophilic scalar (φL) is a hypothetical particle that couples only to leptons rather than quarks. We report on a search for φL in the e+e-→τ+τ-φL, φL→ℓ+ℓ-(ℓ=e,μ) process using 626 fb-1 of data collected by the Belle experiment near the ϒ(4S) resonance. We validate the backgrounds with multiple control regions in data, using a novel multiclass multivariate event classifier. In absence of a signal, we quote upper limits at the 90% confidence level on the coupling between φL and leptons. Our bounds, obtained in a blinded approach, are 19% more constraining than the previous limits, averaged over the mass range 0.04≤mφL≤6.5 GeV. We exclude the parameter space below 4 GeV favored by measurement of the anomalous magnetic moment of the muon.",

author = "D. Biswas and Sw Banerjee and I. Adachi and H. Aihara and Asner, {D. M.} and T. Aushev and R. Ayad and V. Babu and P. Behera and J. Bennett and M. Bessner and V. Bhardwaj and B. Bhuyan and T. Bilka and D. Bodrov and J. Borah and A. Bozek and M. Bra{\v c}ko and P. Branchini and Browder, {T. E.} and A. Budano and M. Campajola and D. {\v C}ervenkov and Chang, {M. C.} and P. Chang and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Choi, {S. K.} and Y. Choi and S. Choudhury and D. Cinabro and S. Das and {De Nardo}, G. and {De Pietro}, G. and R. Dhamija and {Di Capua}, F. and J. Dingfelder and Z. Dole{\v Z}al and Dong, {T. V.} and S. Dubey and P. Ecker and D. Epifanov and T. Ferber and Fulsom, {B. G.} and V. Gaur and A. Garmash and A. Giri and P. Goldenzweig and E. Graziani and Y. Guan and K. Gudkova and C. Hadjivasiliou and K. Hayasaka and H. Hayashii and S. Hazra and Hedges, {M. T.} and D. Herrmann and {Hern{\'a}ndez Villanueva}, M. and Hou, {W. S.} and Hsu, {C. L.} and K. Inami and G. Inguglia and N. Ipsita and A. Ishikawa and R. Itoh and M. Iwasaki and Jacobs, {W. W.} and Ji, {Q. P.} and S. Jia and Y. Jin and Joo, {K. K.} and Kaliyar, {A. B.} and C. Kiesling and Kim, {C. H.} and Kim, {D. Y.} and Kim, {K. H.} and Kim, {Y. J.} and Kim, {Y. K.} and P. Kody{\v s} and T. Konno and A. Korobov and S. Korpar and P. Kri{\v Z}an and P. Krokovny and M. Kumar and K. Kumara and Kwon, {Y. J.} and Lai, {Y. T.} and M. Laurenza and Lee, {S. C.} and D. Levit and J. Li and Li, {L. K.} and Y. Li and {Li Gioi}, L. and J. Libby and K. Lieret and Lin, {Y. R.} and D. Liventsev and T. Luo and Y. Ma and M. Masuda and Maurya, {S. K.} and F. Meier and M. Merola and F. Metzner and K. Miyabayashi and R. Mizuk and I. Nakamura and M. Nakao and Z. Natkaniec and A. Natochii and L. Nayak and M. Niiyama and Nisar, {N. K.} and S. Nishida and S. Ogawa and H. Ono and P. Pakhlov and G. Pakhlova and S. Pardi and H. Park and J. Park and Park, {S. H.} and A. Passeri and S. Patra and S. Paul and R. Pestotnik and Piilonen, {L. E.} and T. Podobnik and E. Prencipe and Prim, {M. T.} and N. Rout and G. Russo and S. Sandilya and L. Santelj and V. Savinov and G. Schnell and C. Schwanda and Y. Seino and K. Senyo and Sevior, {M. E.} and W. Shan and C. Sharma and Shiu, {J. G.} and B. Shwartz and Singh, {J. B.} and A. Sokolov and E. Solovieva and M. Stari{\v c} and Stottler, {Z. S.} and M. Sumihama and M. Takizawa and K. Tanida and F. Tenchini and K. Trabelsi and M. Uchida and T. Uglov and Y. Unno and K. Uno and S. Uno and P. Urquijo and A. Vinokurova and D. Wang and E. Wang and S. Watanuki and E. Won and X. Xu and Yabsley, {B. D.} and W. Yan and Yin, {J. H.} and Yuan, {C. Z.} and L. Yuan and Zhang, {Z. P.} and V. Zhilich and V. Zhukova and V. Zhulanov",

note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

year = "2024",

month = feb,

day = "1",

doi = "10.1103/PhysRevD.109.032002",

language = "English",

volume = "109",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}

Biswas, D, Banerjee, S, Adachi, I, Aihara, H, Asner, DM, Aushev, T, Ayad, R, Babu, V, Behera, P, Bennett, J, Bessner, M, Bhardwaj, V, Bhuyan, B, Bilka, T, Bodrov, D, Borah, J, Bozek, A, Bračko, M, Branchini, P, Browder, TE, Budano, A, Campajola, M, Červenkov, D, Chang, MC, Chang, P, Cheon, BG, Chilikin, K, Cho, HE, Cho, K, Choi, SK, Choi, Y, Choudhury, S, Cinabro, D, Das, S, De Nardo, G, De Pietro, G, Dhamija, R, Di Capua, F, Dingfelder, J, DoleŽal, Z, Dong, TV, Dubey, S, Ecker, P, Epifanov, D, Ferber, T, Fulsom, BG, Gaur, V, Garmash, A, Giri, A, Goldenzweig, P, Graziani, E, Guan, Y, Gudkova, K, Hadjivasiliou, C, Hayasaka, K, Hayashii, H, Hazra, S, Hedges, MT, Herrmann, D, Hernández Villanueva, M, Hou, WS, Hsu, CL, Inami, K, Inguglia, G, Ipsita, N, Ishikawa, A, Itoh, R, Iwasaki, M, Jacobs, WW, Ji, QP, Jia, S, Jin, Y, Joo, KK, Kaliyar, AB, Kiesling, C, Kim, CH, Kim, DY, Kim, KH, Kim, YJ, Kim, YK, Kodyš, P, Konno, T, Korobov, A, Korpar, S, KriŽan, P, Krokovny, P, Kumar, M, Kumara, K, Kwon, YJ, Lai, YT, Laurenza, M, Lee, SC, Levit, D, Li, J, Li, LK, Li, Y, Li Gioi, L, Libby, J, Lieret, K, Lin, YR, Liventsev, D, Luo, T, Ma, Y, Masuda, M, Maurya, SK, Meier, F, Merola, M, Metzner, F, Miyabayashi, K, Mizuk, R, Nakamura, I, Nakao, M, Natkaniec, Z, Natochii, A, Nayak, L, Niiyama, M, Nisar, NK, Nishida, S, Ogawa, S, Ono, H, Pakhlov, P, Pakhlova, G, Pardi, S, Park, H, Park, J, Park, SH, Passeri, A, Patra, S, Paul, S, Pestotnik, R, Piilonen, LE, Podobnik, T, Prencipe, E, Prim, MT, Rout, N, Russo, G, Sandilya, S, Santelj, L, Savinov, V, Schnell, G, Schwanda, C, Seino, Y, Senyo, K, Sevior, ME, Shan, W, Sharma, C, Shiu, JG, Shwartz, B, Singh, JB, Sokolov, A, Solovieva, E, Starič, M, Stottler, ZS, Sumihama, M, Takizawa, M, Tanida, K, Tenchini, F, Trabelsi, K, Uchida, M, Uglov, T, Unno, Y, Uno, K, Uno, S, Urquijo, P, Vinokurova, A, Wang, D, Wang, E, Watanuki, S, Won, E, Xu, X, Yabsley, BD, Yan, W, Yin, JH, Yuan, CZ, Yuan, L, Zhang, ZP, Zhilich, V, Zhukova, V & Zhulanov, V 2024, 'Search for a dark leptophilic scalar produced in association with τ+τ- pair in e+e- annihilation at center-of-mass energies near 10.58 GeV', Physical Review D, vol. 109, no. 3, 032002. https://doi.org/10.1103/PhysRevD.109.032002

TY - JOUR

T1 - Search for a dark leptophilic scalar produced in association with τ+τ- pair in e+e- annihilation at center-of-mass energies near 10.58 GeV

AU - Biswas, D.

AU - Banerjee, Sw

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Behera, P.

AU - Bennett, J.

AU - Bessner, M.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Bodrov, D.

AU - Borah, J.

AU - Bozek, A.

AU - Bračko, M.

AU - Branchini, P.

AU - Browder, T. E.

AU - Budano, A.

AU - Campajola, M.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, H. E.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Das, S.

AU - De Nardo, G.

AU - De Pietro, G.

AU - Dhamija, R.

AU - Di Capua, F.

AU - Dingfelder, J.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Dubey, S.

AU - Ecker, P.

AU - Epifanov, D.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Garmash, A.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Graziani, E.

AU - Guan, Y.

AU - Gudkova, K.

AU - Hadjivasiliou, C.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazra, S.

AU - Hedges, M. T.

AU - Herrmann, D.

AU - Hernández Villanueva, M.

AU - Hou, W. S.

AU - Hsu, C. L.

AU - Inami, K.

AU - Inguglia, G.

AU - Ipsita, N.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Jacobs, W. W.

AU - Ji, Q. P.

AU - Jia, S.

AU - Jin, Y.

AU - Joo, K. K.

AU - Kaliyar, A. B.

AU - Kiesling, C.

AU - Kim, C. H.

AU - Kim, D. Y.

AU - Kim, K. H.

AU - Kim, Y. J.

AU - Kim, Y. K.

AU - Kodyš, P.

AU - Konno, T.

AU - Korobov, A.

AU - Korpar, S.

AU - KriŽan, P.

AU - Krokovny, P.

AU - Kumar, M.

AU - Kumara, K.

AU - Kwon, Y. J.

AU - Lai, Y. T.

AU - Laurenza, M.

AU - Lee, S. C.

AU - Levit, D.

AU - Li, J.

AU - Li, L. K.

AU - Li, Y.

AU - Li Gioi, L.

AU - Libby, J.

AU - Lieret, K.

AU - Lin, Y. R.

AU - Liventsev, D.

AU - Luo, T.

AU - Ma, Y.

AU - Masuda, M.

AU - Maurya, S. K.

AU - Meier, F.

AU - Merola, M.

AU - Metzner, F.

AU - Miyabayashi, K.

AU - Mizuk, R.

AU - Nakamura, I.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Natochii, A.

AU - Nayak, L.

AU - Niiyama, M.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Ogawa, S.

AU - Ono, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Pardi, S.

AU - Park, H.

AU - Park, J.

AU - Park, S. H.

AU - Passeri, A.

AU - Patra, S.

AU - Paul, S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Podobnik, T.

AU - Prencipe, E.

AU - Prim, M. T.

AU - Rout, N.

AU - Russo, G.

AU - Sandilya, S.

AU - Santelj, L.

AU - Savinov, V.

AU - Schnell, G.

AU - Schwanda, C.

AU - Seino, Y.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shan, W.

AU - Sharma, C.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Starič, M.

AU - Stottler, Z. S.

AU - Sumihama, M.

AU - Takizawa, M.

AU - Tanida, K.

AU - Tenchini, F.

AU - Trabelsi, K.

AU - Uchida, M.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, K.

AU - Uno, S.

AU - Urquijo, P.

AU - Vinokurova, A.

AU - Wang, D.

AU - Wang, E.

AU - Watanuki, S.

AU - Won, E.

AU - Xu, X.

AU - Yabsley, B. D.

AU - Yan, W.

AU - Yin, J. H.

AU - Yuan, C. Z.

AU - Yuan, L.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhukova, V.

AU - Zhulanov, V.

N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2024/2/1

Y1 - 2024/2/1

N2 - A dark leptophilic scalar (φL) is a hypothetical particle that couples only to leptons rather than quarks. We report on a search for φL in the e+e-→τ+τ-φL, φL→ℓ+ℓ-(ℓ=e,μ) process using 626 fb-1 of data collected by the Belle experiment near the ϒ(4S) resonance. We validate the backgrounds with multiple control regions in data, using a novel multiclass multivariate event classifier. In absence of a signal, we quote upper limits at the 90% confidence level on the coupling between φL and leptons. Our bounds, obtained in a blinded approach, are 19% more constraining than the previous limits, averaged over the mass range 0.04≤mφL≤6.5 GeV. We exclude the parameter space below 4 GeV favored by measurement of the anomalous magnetic moment of the muon.

AB - A dark leptophilic scalar (φL) is a hypothetical particle that couples only to leptons rather than quarks. We report on a search for φL in the e+e-→τ+τ-φL, φL→ℓ+ℓ-(ℓ=e,μ) process using 626 fb-1 of data collected by the Belle experiment near the ϒ(4S) resonance. We validate the backgrounds with multiple control regions in data, using a novel multiclass multivariate event classifier. In absence of a signal, we quote upper limits at the 90% confidence level on the coupling between φL and leptons. Our bounds, obtained in a blinded approach, are 19% more constraining than the previous limits, averaged over the mass range 0.04≤mφL≤6.5 GeV. We exclude the parameter space below 4 GeV favored by measurement of the anomalous magnetic moment of the muon.

UR - http://www.scopus.com/inward/record.url?scp=85184871179&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.109.032002

DO - 10.1103/PhysRevD.109.032002

M3 - Article

AN - SCOPUS:85184871179

SN - 2470-0010

VL - 109

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 032002

ER -

Search for a dark leptophilic scalar produced in association with τ+τ- pair in e+e- annihilation at center-of-mass energies near 10.58 GeV

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