Electromagnetic decay of the {Sigma}{sup 0}(1385) to {Lambda}{gamma}
Abstract
The electromagnetic decay {Sigma}{sup 0}(1385){yields}{Lambda}{gamma} was studied using the CLAS detector at the Thomas Jefferson National Accelerator Facility. A real photon beam with a maximum energy of 3.8 GeV was incident on a proton target, producing an exclusive final state of K{sup +}{Sigma}{sup *0}. We report the decay widths ratio {Sigma}{sup 0}(1385){yields}{Lambda}{gamma}/{Sigma}{sup 0}(1385){yields}{Lambda}{pi}{sup 0}=1.42{+-}0.12(stat){sub -0.07}{sup +0.11}(sys)%. This ratio is larger than most theoretical predictions by factors ranging from 1.5-3, but is consistent with the only other experimental measurement. From the reported ratio we calculate the partial width and electromagnetic transition magnetic moment for {Sigma}{sup 0}(1385){yields}{Lambda}{gamma}.
- Authors:
-
- Ohio University, Athens, Ohio 45701 (United States)
- Old Dominion University, Norfolk, Virginia 23529 (United States)
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati (Italy)
- University of Virginia, Charlottesville, Virginia 22901 (United States)
- Publication Date:
- OSTI Identifier:
- 21537694
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review. D, Particles Fields
- Additional Journal Information:
- Journal Volume: 83; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.83.072004; (c) 2011 American Institute of Physics; Journal ID: ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CEBAF ACCELERATOR; COMPUTERIZED SIMULATION; ENERGY-LEVEL TRANSITIONS; FORECASTING; GAMMA RADIATION; GEV RANGE 01-10; KAONS PLUS; LAMBDA PARTICLES; MAGNETIC MOMENTS; PARTICLE DECAY; PHOTON BEAMS; PROTONS; SIGMA MINUS PARTICLES; SIGMA NEUTRAL PARTICLES; SIGMA-1385 BARYONS; ACCELERATORS; BARYONS; BEAMS; BOSONS; DECAY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HYPERONS; IONIZING RADIATIONS; KAONS; LAMBDA BARYONS; LINEAR ACCELERATORS; MESONS; NUCLEONS; PSEUDOSCALAR MESONS; RADIATIONS; SIGMA BARYONS; SIGMA PARTICLES; SIMULATION; STRANGE MESONS; STRANGE PARTICLES
Citation Formats
Keller, D, Hicks, K, Daniel, A, Tang, W, Adhikari, K P, Adhikari, K P, Adikaram, D, Amarian, M, Bennett, R P, Careccia, S L, Klein, A, Seraydaryan, H, Sharabian, Y G, Weinstein, L B, Aghasyan, M, De Sanctis, E, Mirazita, M, Anefalos Pereira, S, Rossi, P, Baghdasaryan, H, and Old Dominion University, Norfolk, Virginia 23529. Electromagnetic decay of the {Sigma}{sup 0}(1385) to {Lambda}{gamma}. United States: N. p., 2011.
Web. doi:10.1103/PHYSREVD.83.072004.
Keller, D, Hicks, K, Daniel, A, Tang, W, Adhikari, K P, Adhikari, K P, Adikaram, D, Amarian, M, Bennett, R P, Careccia, S L, Klein, A, Seraydaryan, H, Sharabian, Y G, Weinstein, L B, Aghasyan, M, De Sanctis, E, Mirazita, M, Anefalos Pereira, S, Rossi, P, Baghdasaryan, H, & Old Dominion University, Norfolk, Virginia 23529. Electromagnetic decay of the {Sigma}{sup 0}(1385) to {Lambda}{gamma}. United States. https://doi.org/10.1103/PHYSREVD.83.072004
Keller, D, Hicks, K, Daniel, A, Tang, W, Adhikari, K P, Adhikari, K P, Adikaram, D, Amarian, M, Bennett, R P, Careccia, S L, Klein, A, Seraydaryan, H, Sharabian, Y G, Weinstein, L B, Aghasyan, M, De Sanctis, E, Mirazita, M, Anefalos Pereira, S, Rossi, P, Baghdasaryan, H, and Old Dominion University, Norfolk, Virginia 23529. 2011.
"Electromagnetic decay of the {Sigma}{sup 0}(1385) to {Lambda}{gamma}". United States. https://doi.org/10.1103/PHYSREVD.83.072004.
@article{osti_21537694,
title = {Electromagnetic decay of the {Sigma}{sup 0}(1385) to {Lambda}{gamma}},
author = {Keller, D and Hicks, K and Daniel, A and Tang, W and Adhikari, K P and Adhikari, K P and Adikaram, D and Amarian, M and Bennett, R P and Careccia, S L and Klein, A and Seraydaryan, H and Sharabian, Y G and Weinstein, L B and Aghasyan, M and De Sanctis, E and Mirazita, M and Anefalos Pereira, S and Rossi, P and Baghdasaryan, H and Old Dominion University, Norfolk, Virginia 23529},
abstractNote = {The electromagnetic decay {Sigma}{sup 0}(1385){yields}{Lambda}{gamma} was studied using the CLAS detector at the Thomas Jefferson National Accelerator Facility. A real photon beam with a maximum energy of 3.8 GeV was incident on a proton target, producing an exclusive final state of K{sup +}{Sigma}{sup *0}. We report the decay widths ratio {Sigma}{sup 0}(1385){yields}{Lambda}{gamma}/{Sigma}{sup 0}(1385){yields}{Lambda}{pi}{sup 0}=1.42{+-}0.12(stat){sub -0.07}{sup +0.11}(sys)%. This ratio is larger than most theoretical predictions by factors ranging from 1.5-3, but is consistent with the only other experimental measurement. From the reported ratio we calculate the partial width and electromagnetic transition magnetic moment for {Sigma}{sup 0}(1385){yields}{Lambda}{gamma}.},
doi = {10.1103/PHYSREVD.83.072004},
url = {https://www.osti.gov/biblio/21537694},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 83,
place = {United States},
year = {Fri Apr 01 00:00:00 EDT 2011},
month = {Fri Apr 01 00:00:00 EDT 2011}
}