Measurement of the asymmetry in the decay Antiomega+ ---> Antilambda K+ ---> anti-p pi+ K+
Abstract
The asymmetry in the {bar p} angular distribution in the sequential decay {bar {Omega}}{sup +} {yields} {bar {Lambda}}K{sup +} {yields} {bar p}{pi}{sup +}K{sup +} has been measured to be {bar {alpha}}{sub {Omega}}{bar {alpha}}{sub {Lambda}} = [+1.16{+-}0.18(stat){+-}0.17(syst)]x10{sup -2} using 1.89x10{sup 6} unpolarized {bar {Omega}}{sup +} decays recorded by the Hyper CP (E871) experiment at Fermilab. Using the known value of {alpha}{sub {Lambda}}, and assuming that {bar {alpha}}{sub {Lambda}} = -{alpha}{sub {Lambda}}, {bar {alpha}}{sub {Omega}} = [-1.81{+-}0.28(stat){+-}0.26(syst)]x10{sup -2}. A comparison between this measurement of {bar {alpha}}{sub {Omega}}{bar {alpha}}{sub {Lambda}} and recent measurements of {alpha}{sub {Omega}}{alpha}{sub {Lambda}} made by HyperCP shows no evidence of a violation of CP symmetry.
- Authors:
- more »
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 897270
- Report Number(s):
- FERMILAB-PUB-06-394-E
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US0703539
- DOE Contract Number:
- AC02-07CH11359
- Resource Type:
- Journal Article
- Journal Name:
- Phys.Rev.Lett.96:242001,2006
- Additional Journal Information:
- Journal Volume: 75; Journal ID: ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANGULAR DISTRIBUTION; ASYMMETRY; DECAY; FERMILAB; SYMMETRY; Experiment-HEP
Citation Formats
Lu, L. C., Burnstein, R. A., Chakravorty, A., Chen, Y. C., Choong, W. S., Clark, K., Dukes, E. C., Durandet, C., Felix, J., Fu, Y., Gidal, G., Gustafson, H. R., Holmstrom, T., Huang, M., James, C., Jenkins, C. M., Jones, T. D., Kaplan, D. M., Longo, M. J., Luebke, W., Luk, K. B., and /Taiwan, Inst. Phys. /UC, Berkeley /Fermilab /Guanajuato U. /IIT, Chicago/Lausanne U. /LBL, Berkeley /Michigan U. /South Alabama U. /Virginia U. Measurement of the asymmetry in the decay Antiomega+ ---> Antilambda K+ ---> anti-p pi+ K+. United States: N. p., 2006.
Web. doi:10.1103/PhysRevLett.96.242001.
Lu, L. C., Burnstein, R. A., Chakravorty, A., Chen, Y. C., Choong, W. S., Clark, K., Dukes, E. C., Durandet, C., Felix, J., Fu, Y., Gidal, G., Gustafson, H. R., Holmstrom, T., Huang, M., James, C., Jenkins, C. M., Jones, T. D., Kaplan, D. M., Longo, M. J., Luebke, W., Luk, K. B., & /Taiwan, Inst. Phys. /UC, Berkeley /Fermilab /Guanajuato U. /IIT, Chicago/Lausanne U. /LBL, Berkeley /Michigan U. /South Alabama U. /Virginia U. Measurement of the asymmetry in the decay Antiomega+ ---> Antilambda K+ ---> anti-p pi+ K+. United States. https://doi.org/10.1103/PhysRevLett.96.242001
Lu, L. C., Burnstein, R. A., Chakravorty, A., Chen, Y. C., Choong, W. S., Clark, K., Dukes, E. C., Durandet, C., Felix, J., Fu, Y., Gidal, G., Gustafson, H. R., Holmstrom, T., Huang, M., James, C., Jenkins, C. M., Jones, T. D., Kaplan, D. M., Longo, M. J., Luebke, W., Luk, K. B., and /Taiwan, Inst. Phys. /UC, Berkeley /Fermilab /Guanajuato U. /IIT, Chicago/Lausanne U. /LBL, Berkeley /Michigan U. /South Alabama U. /Virginia U. 2006.
"Measurement of the asymmetry in the decay Antiomega+ ---> Antilambda K+ ---> anti-p pi+ K+". United States. https://doi.org/10.1103/PhysRevLett.96.242001. https://www.osti.gov/servlets/purl/897270.
@article{osti_897270,
title = {Measurement of the asymmetry in the decay Antiomega+ ---> Antilambda K+ ---> anti-p pi+ K+},
author = {Lu, L. C. and Burnstein, R. A. and Chakravorty, A. and Chen, Y. C. and Choong, W. S. and Clark, K. and Dukes, E. C. and Durandet, C. and Felix, J. and Fu, Y. and Gidal, G. and Gustafson, H. R. and Holmstrom, T. and Huang, M. and James, C. and Jenkins, C. M. and Jones, T. D. and Kaplan, D. M. and Longo, M. J. and Luebke, W. and Luk, K. B. and /Taiwan, Inst. Phys. /UC, Berkeley /Fermilab /Guanajuato U. /IIT, Chicago/Lausanne U. /LBL, Berkeley /Michigan U. /South Alabama U. /Virginia U.},
abstractNote = {The asymmetry in the {bar p} angular distribution in the sequential decay {bar {Omega}}{sup +} {yields} {bar {Lambda}}K{sup +} {yields} {bar p}{pi}{sup +}K{sup +} has been measured to be {bar {alpha}}{sub {Omega}}{bar {alpha}}{sub {Lambda}} = [+1.16{+-}0.18(stat){+-}0.17(syst)]x10{sup -2} using 1.89x10{sup 6} unpolarized {bar {Omega}}{sup +} decays recorded by the Hyper CP (E871) experiment at Fermilab. Using the known value of {alpha}{sub {Lambda}}, and assuming that {bar {alpha}}{sub {Lambda}} = -{alpha}{sub {Lambda}}, {bar {alpha}}{sub {Omega}} = [-1.81{+-}0.28(stat){+-}0.26(syst)]x10{sup -2}. A comparison between this measurement of {bar {alpha}}{sub {Omega}}{bar {alpha}}{sub {Lambda}} and recent measurements of {alpha}{sub {Omega}}{alpha}{sub {Lambda}} made by HyperCP shows no evidence of a violation of CP symmetry.},
doi = {10.1103/PhysRevLett.96.242001},
url = {https://www.osti.gov/biblio/897270},
journal = {Phys.Rev.Lett.96:242001,2006},
issn = {0031-9007},
number = ,
volume = 75,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}
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