Search for a dark vector gauge boson decaying to π+π- using η→π+π-γ decays

Won, E.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Barberio, E.; Behera, P.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bozek, A.; Bračko, M.; Červenkov, D.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, Y.; Cinabro, D.; Dash, N.; Di Carlo, S.; Doležal, Z.; Drásal, Z.; Dutta, D.; Eidelman, S.; Epifanov, D.; Farhat, H.; Fast, J. E.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gillard, R.; Goldenzweig, P.; Greenwald, D.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hou, W. -S.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jaegle, I.; Jeon, H. B.; Joffe, D.; Joo, K. K.; Julius, T.; Kang, K. H.; Kawasaki, T.; Kim, D. Y.; Kim, J. B.; Kim, K. T.; Kim, M. J.; Kim, S. H.; Kim, Y. J.; Kinoshita, K.; Kodyš, P.; Križan, P.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kwon, Y. -J.; Lange, J. S.; Lee, I. S.; Li, C. H.; Li, L.; Li, Y.; Li Gioi, L.; Libby, J.; Liventsev, D.; Luo, T.; Masuda, M.; Matsuda, T.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Nakano, E.; Nakao, M.; Nakazawa, H.; Nanut, T.; Nath, K. J.; Natkaniec, Z.; Nayak, M.; Nishida, S.; Ogawa, S.; Okuno, S.; Pakhlov, P.; Pal, B.; Park, C. -S.; Paul, S.; Pedlar, T. K.; Piilonen, L. E.; Pulvermacher, C.; Rauch, J.; Ritter, M.; Sahoo, H.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Sato, Y.; Savinov, V.; Schlüter, T.; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Semmler, D.; Senyo, K.; Seon, O.; Seong, I. S.; Shebalin, V.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Simon, F.; Starič, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Van Hulse, C.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Wang, C. H.; Wang, M. -Z.; Watanabe, M.; Watanabe, Y.; Widmann, E.; Yamaoka, J.; Ye, H.; Yook, Y.; Yuan, C. Z.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.; Zupanc, A.

doi:10.1103/PhysRevD.94.092006

Search for a dark vector gauge boson decaying to $π^{+} π^{-}$ using $η \to π^{+} π^{-} γ$ decays

Journal Article · Tue Nov 29 00:00:00 EST 2016 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.94.092006· OSTI ID:1594371

Won, E. ^[1]; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Barberio, E.; Behera, P.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bozek, A.; Bračko, M.; Červenkov, D.; Chekelian, V.; Chen, A. more »

Virginia Polytechnic Institute and State University

In this report, we search for a dark vector gauge boson

U^{'}

that couples to quarks in the decay chain

D^{* +} \to D^{0} π^{+}, D^{0} \to K_{S}^{0} η, η \to U^{'} γ

U^{'} \to π^{+} π^{-}

. No signal is discovered and we set a mass-dependent limit on the baryonic fine structure constant of

10^{- 3} - 10^{- 2}

in the

U^{'}

mass range of 290 to

520 MeV / c^{2}

. This analysis is based on a data sample of

976 {fb}^{- 1}

collected by the Belle experiment at the KEKB asymmetric-energy

e^{+} e^{-}

collider.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Hawaii, Honolulu, HI (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

Sponsoring Organization:: National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: Belle Collaboration

Grant/Contract Number:: SC0009973; SC0010504

OSTI ID:: 1594371

Alternate ID(s):: OSTI ID: 1333770
OSTI ID: 1373872

Journal Information:: Physical Review D, Journal Name: Physical Review D Journal Issue: 9 Vol. 94; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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