Search for lepton-number-violating $B^{+}\to D^{-}{\ell }^{+}{\ell }^{\text{'}+}$ decays

Journal Article · Sat Oct 01 00:00:00 EDT 2011 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.84.071106· OSTI ID:1032684

Seon, O.; Kwon, Y. -J.; Iijima, T.; Adachi, I.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Barberio, E.; Bay, A.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Brovchenko, O.; Browder, T. E.; Chang, P. ; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Cho, I. -S.; Cho, K.; Choi, S. -K.; Choi, Y.; Dalseno, J.; Doležal, Z.; Drutskoy, A.; Eidelman, S.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Goh, Y. M.; Golob, B.; Haba, J.; Hara, K.; Hara, T.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Hsiung, Y. B.; Hyun, H. J.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Joshi, N. J.; Julius, T.; Kang, J. H.; Katayama, N.; Kawasaki, T.; Kichimi, H.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, S. K.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Kobayashi, N.; Koblitz, S.; Kodyš, P.; Korpar, S.; Križan, P.; Kuhr, T.; Kumita, T.; Kuzmin, A.; Kyeong, S. -H.; Lange, J. S.; Lee, M. J.; Lee, S. -H.; Li, J.; Li, Y.; Libby, J.; Lim, C. -L.; Liu, C.; Liu, Y.; Liventsev, D.; Louvot, R.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mohanty, G. B.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Neubauer, S.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Park, H.; Park, H. K.; Park, K. S.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Prim, M.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, K.; Sakai, Y.; Sanuki, T.; Schneider, O.; Schwanda, C.; Senyo, K.; Sevior, M. E.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Simon, F.; Singh, J. B.; Smerkol, P.; Sohn, Y. -S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Sumihama, M.; Sumiyoshi, T.; Suzuki, K.; Suzuki, S.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Ushiroda, Y.; Usov, Y.; Vahsen, S. E.; Varner, G.; Varvell, K. E.; Vinokurova, A.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Yamauchi, M.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.; Zyukova, O.

We perform the first search for lepton-number-violating B+ D^-ℓ+ℓ'+ decays, where ℓ and ℓ' stand for e or μ, using 772×106 B ¯B pairs accumulated at the (4S) resonance with the Belle detector at the KEKB e⁺e^- collider. No evidence for these decays has been found. Assuming uniform three-body phase space distributions for the D^-ℓ+ℓ'+ decays, we set the following upper limits on the branching fractions at 90% confidence level: B(B+ D^-e⁺e⁺) < 2.6×10^-6, B(B⁺ D^-e+μ+) < 1.8 × 10^-6 and B(B⁺ D^-μ⁺μ⁺) < 1.0 × 10^-6.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
• Sponsoring Organization: USDOE
• Contributing Organization: Belle Collaboration
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1032684
• Report Number(s): PNNL-SA-81595; PRVDAQ; 45392; TRN: US1200528
• Journal Information: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 84, Issue 7; ISSN 1550-7998
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
PHASE SPACE
RESONANCE
LEPTON NUMBER
LEPTONIC DECAY
Search for Lepton-number-violating B+ D−ℓ+ℓ′+ Decays
Environmental Molecular Sciences Laboratory