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Title: Search for B{sup 0}{yields}pp, {lambda}{lambda} and B{sup +}{yields}p{lambda} at Belle

Abstract

We report on a new search for two-body baryonic decays of the B meson. Improved sensitivity compared to previous Belle results is obtained from 414 fb{sup -1} of data that corresponds to 449x10{sup 6} BB pairs, which were taken on the {upsilon}(4S) resonance and collected with the Belle detector at the KEKB e{sup +}e{sup -} collider. No significant signals are observed and we set the 90% confidence level upper limits: B(B{sup 0}{yields}pp)<1.1x10{sup -7}, B(B{sup 0}{yields}{lambda}{lambda})<3.2x10{sup -7}, and B(B{sup +}{yields}p{lambda})<3.2x10{sup -7}.

Authors:
; ; ; ; ; ; ; ;  [1]; ; ; ; ; ; ; ; ; ; ;  [2]
  1. Department of Physics, National Taiwan University, Taipei (China)
  2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan) (and others)
Publication Date:
OSTI Identifier:
20929529
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.75.111101; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B NEUTRAL MESONS; B PLUS MESONS; HADRONIC PARTICLE DECAY; LAMBDA PARTICLES; PAIR PRODUCTION; PROTONS; SIGNALS; TWO-BODY PROBLEM

Citation Formats

Tsai, Y.-T., Chang, P., Chao, Y., Hou, W.-S., Hsiung, Y. B., Lee, Y.-J., Lin, S.-W., Ueno, K., Wang, M.-Z., Abe, K., Adachi, I., Dragic, J., Haba, J., Hazumi, M., Itoh, R., Iwasaki, Y., Kichimi, H., Krokovny, P., Limosani, A., and Nakao, M. Search for B{sup 0}{yields}pp, {lambda}{lambda} and B{sup +}{yields}p{lambda} at Belle. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.111101.
Tsai, Y.-T., Chang, P., Chao, Y., Hou, W.-S., Hsiung, Y. B., Lee, Y.-J., Lin, S.-W., Ueno, K., Wang, M.-Z., Abe, K., Adachi, I., Dragic, J., Haba, J., Hazumi, M., Itoh, R., Iwasaki, Y., Kichimi, H., Krokovny, P., Limosani, A., & Nakao, M. Search for B{sup 0}{yields}pp, {lambda}{lambda} and B{sup +}{yields}p{lambda} at Belle. United States. doi:10.1103/PHYSREVD.75.111101.
Tsai, Y.-T., Chang, P., Chao, Y., Hou, W.-S., Hsiung, Y. B., Lee, Y.-J., Lin, S.-W., Ueno, K., Wang, M.-Z., Abe, K., Adachi, I., Dragic, J., Haba, J., Hazumi, M., Itoh, R., Iwasaki, Y., Kichimi, H., Krokovny, P., Limosani, A., and Nakao, M. Fri . "Search for B{sup 0}{yields}pp, {lambda}{lambda} and B{sup +}{yields}p{lambda} at Belle". United States. doi:10.1103/PHYSREVD.75.111101.
@article{osti_20929529,
title = {Search for B{sup 0}{yields}pp, {lambda}{lambda} and B{sup +}{yields}p{lambda} at Belle},
author = {Tsai, Y.-T. and Chang, P. and Chao, Y. and Hou, W.-S. and Hsiung, Y. B. and Lee, Y.-J. and Lin, S.-W. and Ueno, K. and Wang, M.-Z. and Abe, K. and Adachi, I. and Dragic, J. and Haba, J. and Hazumi, M. and Itoh, R. and Iwasaki, Y. and Kichimi, H. and Krokovny, P. and Limosani, A. and Nakao, M.},
abstractNote = {We report on a new search for two-body baryonic decays of the B meson. Improved sensitivity compared to previous Belle results is obtained from 414 fb{sup -1} of data that corresponds to 449x10{sup 6} BB pairs, which were taken on the {upsilon}(4S) resonance and collected with the Belle detector at the KEKB e{sup +}e{sup -} collider. No significant signals are observed and we set the 90% confidence level upper limits: B(B{sup 0}{yields}pp)<1.1x10{sup -7}, B(B{sup 0}{yields}{lambda}{lambda})<3.2x10{sup -7}, and B(B{sup +}{yields}p{lambda})<3.2x10{sup -7}.},
doi = {10.1103/PHYSREVD.75.111101},
journal = {Physical Review. D, Particles Fields},
number = 11,
volume = 75,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2007},
month = {Fri Jun 01 00:00:00 EDT 2007}
}