Search for Lambda(+)(c) -> phi p pi(0) and branching fraction measurement of Lambda(+)(c) -> K- pi(+) p pi(0)
Pal, B.; Schwartz, A. J.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Behera, P.; Berger, M.; Bhardwaj, V.; Biswal, J.; Bobrov, A.; Bozek, A.; Bracko, M.; Browder, T. E.; Cervenkov, D.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Dash, N.; Di Carlo, S.; Dolezal, Z.; Drasal, Z.; Eidelman, S.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Garmash, A.; Goldenzweig, P.; Guido, E.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hou, W. -S.; Hsu, C. -L.; Inami, K.; Ishikawa, A.; Itoh, R.; Jacobs, W. W.; Jaegle, I.; Jeon, H. B.; Jia, S.; Jin, Y.; Joffe, D.; Joo, K. K.; Karyan, G.; Kato, Y.; Kim, D. Y.; Kim, J. B.; Kim, K. T.; Kim, S. H.; Kim, Y. J.; Kinoshita, K.; Kodys, P.; Korpar, S.; Kotchetkov, D.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kwon, Y. -J.; Li, C. H.; Li, L.; Li, Y.; Gioi, L. Li; Libby, J.; Liventsev, D.; Lubej, M.; Luo, T.; Macnaughton, J.; Matvienko, D.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moon, H. K.; Mori, T.; Mussa, R.; Nakano, E.; Nakao, M.; Nanut, T.; Nath, K. J.; Nayak, M.; Niiyama, M.; Nishida, S.; Ogawa, S.; Ono, H.; Pakhlov, P.; Pakhlova, G.; Pardi, S.; Park, C. -S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Ritter, M.; Rostomyan, A.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shibata, T. -A.; Shiu, J. -G.; Simon, F.; Sokolov, A.; Solovieva, E.; Staric, M.; Strube, J. F.; Sumihama, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Uglov, T.; Uno, S.; Van Hulse, C.; Varner, G.; Varvell, K. E.; Vinokurova, A.; Vorobyev, V.; Wang, C. H.; Wang, M. -Z.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Watanuki, S.; Widmann, E.; Won, E.; Yamashita, Y.; Ye, H.; Yelton, J.; Yuan, C. Z.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.; Zupanc, A.
2017

Abstract

We have searched for the Cabibbo-suppressed decay Lambda(+)(c) -> pi p(0) in e(+) e(-) collisions using a data sample corresponding to an integrated luminosity of 915 fb(-1). The data were collected by the Belle experiment at the KEKB e(+) e(-) asymmetric-energy collider running at or near the (4S) and (5S) resonances. No significant signal is observed, and we set an upper limit on the branching fraction of B(Lambda(+)(c) -> phi p(0)) < 15.3 x 10(-5) at 90% confidence level. The contribution of nonresonant Lambda(+)(c) -> K+ K- p pi(0) decays is found to be consistent with zero, and the corresponding upper limit on its branching fraction is set to be B(Lambda(+)(c) ->. K+ K- p pi(0))(NR) < 6.3 x 10(-5) at 90% confidence level. We also search for an intermediate hidden-strangeness pentaquark decay P-s(+) -> phi p. We see no evidence for this intermediate decay and set an upper limit on the product branching fraction of B(Lambda(+)(c) -> P-s(+) pi(0)) x B(P-s(+) -> phi p) < 8.3 x 10(-5) at 90% confidence level. Finally, we measure the branching fraction for the Cabibbo-favored decay Lambda(+)(c) -> K- pi(+) p pi(0); the result is B(Lambda(+)(c) -> K- pi(+) p pi(0)) = (4.42 +/- 0.05(stat)+/- 0.12(syst)+/- 0.16(norm))%, which is the most precise measurement to date.

Details

Title Search for Lambda(+)(c) -> phi p pi(0) and branching fraction measurement of Lambda(+)(c) -> K- pi(+) p pi(0)
Author(s) Pal, B. ; Schwartz, A. J. ; Adachi, I. ; Aihara, H. ; Al Said, S. ; Asner, D. M. ; Aushev, T. ; Ayad, R. ; Badhrees, I. ; Bakich, A. M. ; Bansal, V. ; Behera, P. ; Berger, M. ; Bhardwaj, V. ; Biswal, J. ; Bobrov, A. ; Bozek, A. ; Bracko, M. ; Browder, T. E. ; Cervenkov, D. ; Chekelian, V. ; Chen, A. ; Cheon, B. G. ; Chilikin, K. ; Cho, K. ; Choi, S. -K. ; Choi, Y. ; Cinabro, D. ; Dash, N. ; Di Carlo, S. ; Dolezal, Z. ; Drasal, Z. ; Eidelman, S. ; Ferber, T. ; Fulsom, B. G. ; Gaur, V. ; Gabyshev, N. ; Garmash, A. ; Goldenzweig, P. ; Guido, E. ; Hara, T. ; Hayasaka, K. ; Hayashii, H. ; Hou, W. -S. ; Hsu, C. -L. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Jacobs, W. W. ; Jaegle, I. ; Jeon, H. B. ; Jia, S. ; Jin, Y. ; Joffe, D. ; Joo, K. K. ; Karyan, G. ; Kato, Y. ; Kim, D. Y. ; Kim, J. B. ; Kim, K. T. ; Kim, S. H. ; Kim, Y. J. ; Kinoshita, K. ; Kodys, P. ; Korpar, S. ; Kotchetkov, D. ; Krokovny, P. ; Kuhr, T. ; Kulasiri, R. ; Kwon, Y. -J. ; Li, C. H. ; Li, L. ; Li, Y. ; Gioi, L. Li ; Libby, J. ; Liventsev, D. ; Lubej, M. ; Luo, T. ; Macnaughton, J. ; Matvienko, D. ; Merola, M. ; Miyabayashi, K. ; Miyata, H. ; Mizuk, R. ; Mohanty, G. B. ; Moon, H. K. ; Mori, T. ; Mussa, R. ; Nakano, E. ; Nakao, M. ; Nanut, T. ; Nath, K. J. ; Nayak, M. ; Niiyama, M. ; Nishida, S. ; Ogawa, S. ; Ono, H. ; Pakhlov, P. ; Pakhlova, G. ; Pardi, S. ; Park, C. -S. ; Paul, S. ; Pedlar, T. K. ; Pestotnik, R. ; Piilonen, L. E. ; Ritter, M. ; Rostomyan, A. ; Sakai, Y. ; Sandilya, S. ; Santelj, L. ; Sanuki, T. ; Savinov, V. ; Schneider, O. ; Schnell, G. ; Schwanda, C. ; Seino, Y. ; Senyo, K. ; Sevior, M. E. ; Shibata, T. -A. ; Shiu, J. -G. ; Simon, F. ; Sokolov, A. ; Solovieva, E. ; Staric, M. ; Strube, J. F. ; Sumihama, M. ; Sumiyoshi, T. ; Takizawa, M. ; Tamponi, U. ; Tanida, K. ; Tenchini, F. ; Uchida, M. ; Uglov, T. ; Uno, S. ; Van Hulse, C. ; Varner, G. ; Varvell, K. E. ; Vinokurova, A. ; Vorobyev, V. ; Wang, C. H. ; Wang, M. -Z. ; Wang, X. L. ; Watanabe, M. ; Watanabe, Y. ; Watanuki, S. ; Widmann, E. ; Won, E. ; Yamashita, Y. ; Ye, H. ; Yelton, J. ; Yuan, C. Z. ; Zhang, Z. P. ; Zhilich, V. ; Zhukova, V. ; Zhulanov, V. ; Zupanc, A.
Published in Physical Review D
Pagination 8
Volume 96
Issue 5
Pages 051102
Date 2017
Publisher College Pk, Amer Physical Soc
ISSN 2470-0010
DOI https://doi.org/10.1103/PhysRevD.96.051102
Other identifier(s) View record in Web of Science
Laboratories LPHE
Record Appears in Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date 2017-10-09

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