Branching ratio of the electromagnetic decay of the Sigma(+)(1385)

CLAS Collaboration; D. Keller; K. Hicks; K. P. Adhikari; D. Adikaram; M. J. Amaryan; M. Anghinolfi; H. Baghdasaryan; J. Ball; M. Battaglieri; I. Bedlinskiy; A. S. Biselli; C. Bookwalter; S. Boiarinov; D. Branford; W. J. Briscoe; W. K. Brooks; V. D. Burkert; D. S. Carman; A. Celentano; S. Chandavar; P. L. Cole; M. Contalbrigo; V. Crede; A. D'Angelo; A. Daniel; N. Dashyan; R. De Vita; E. De Sanctis; C. Djalali; D. Doughty; R. Dupre; A. El Alaoui; L. El Fassi; L. Elouadrhiri; P. Eugenio; G. Fedotov; M. Y. Gabrielyan; N. Gevorgyan; G. P. Gilfoyle; K. L. Giovanetti; W. Gohn; E. Golovatch; R. W. Gothe; L. Graham; K. A. Griffioen; M. Guidal; N. Guler; L. Guo; K. Hafidi; D. P. Watts

doi:10.1103/PhysRevD.85.052004

Branching ratio of the electromagnetic decay of the Sigma(+)(1385)

CLAS Collaboration, D. Keller, K. Hicks, K. P. Adhikari, D. Adikaram, M. J. Amaryan, M. Anghinolfi, H. Baghdasaryan, J. Ball, M. Battaglieri, I. Bedlinskiy, A. S. Biselli, C. Bookwalter, S. Boiarinov, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, D. S. Carman, A. CelentanoS. Chandavar, P. L. Cole, M. Contalbrigo, V. Crede, A. D'Angelo, A. Daniel, N. Dashyan, R. De Vita, E. De Sanctis, C. Djalali, D. Doughty, R. Dupre, A. El Alaoui, L. El Fassi, L. Elouadrhiri, P. Eugenio, G. Fedotov, M. Y. Gabrielyan, N. Gevorgyan, G. P. Gilfoyle, K. L. Giovanetti, W. Gohn, E. Golovatch, R. W. Gothe, L. Graham, K. A. Griffioen, M. Guidal, N. Guler, L. Guo, K. Hafidi, D. P. Watts

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

The CLAS detector was used to obtain the first ever measurement of the electromagnetic decay of the Sigma*(+)(1385) from the reaction gamma p -> K-0 Sigma*(+)(1385). A real photon beam with a maximum energy of 3.8 GeV was incident on a liquid-hydrogen target, resulting in the photoproduction of the kaon and Sigma* hyperon. Kinematic fitting was used to separate the reaction channel from the background processes. The fitting algorithm exploited a new method to kinematically fit neutrons in the CLAS detector, leading to the measured decay widths ratio Sigma(+)(1385)->Sigma(+)gamma/Sigma(+)(1385)->Sigma(+)pi(0)=11.95 +/-.2.21(stat)(-1.21)(+0.53)(sys)%and a deduced partial width of 250.0 +/- 56.9(stat)(-41.2)(+34.3)(sys) keV. AU-spin symmetry test using the SU(3) flavor-multiplet representation yields predictions for the Sigma*(+)(1385)->Sigma(+)gamma and Sigma*(0)(1385)->Lambda gamma partial widths that agree with the experimental measurements.

Original language	English
Article number	052004
Pages (from-to)	-
Number of pages	20
Journal	Physical Review D
Volume	85
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.85.052004
Publication status	Published - 19 Mar 2012

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10.1103/PhysRevD.85.052004

Illuminating strongly interacting matter
Watts, D.
STFC
1/06/09 → 31/12/13
Project: Research

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CLAS Collaboration, Keller, D., Hicks, K., Adhikari, K. P., Adikaram, D., Amaryan, M. J., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Bedlinskiy, I., Biselli, A. S., Bookwalter, C., Boiarinov, S., Branford, D., Briscoe, W. J., Brooks, W. K., Burkert, V. D., Carman, D. S., ... Watts, D. P. (2012). Branching ratio of the electromagnetic decay of the Sigma(+)(1385). Physical Review D, 85(5), -. Article 052004. https://doi.org/10.1103/PhysRevD.85.052004

@article{e14dc8a84fa346a690c3f1903972c1be,

title = "Branching ratio of the electromagnetic decay of the Sigma(+)(1385)",

abstract = "The CLAS detector was used to obtain the first ever measurement of the electromagnetic decay of the Sigma*(+)(1385) from the reaction gamma p -> K-0 Sigma*(+)(1385). A real photon beam with a maximum energy of 3.8 GeV was incident on a liquid-hydrogen target, resulting in the photoproduction of the kaon and Sigma* hyperon. Kinematic fitting was used to separate the reaction channel from the background processes. The fitting algorithm exploited a new method to kinematically fit neutrons in the CLAS detector, leading to the measured decay widths ratio Sigma(+)(1385)->Sigma(+)gamma/Sigma(+)(1385)->Sigma(+)pi(0)=11.95 +/-.2.21(stat)(-1.21)(+0.53)(sys)%and a deduced partial width of 250.0 +/- 56.9(stat)(-41.2)(+34.3)(sys) keV. AU-spin symmetry test using the SU(3) flavor-multiplet representation yields predictions for the Sigma*(+)(1385)->Sigma(+)gamma and Sigma*(0)(1385)->Lambda gamma partial widths that agree with the experimental measurements.",

author = "{CLAS Collaboration} and D. Keller and K. Hicks and Adhikari, {K. P.} and D. Adikaram and Amaryan, {M. J.} and M. Anghinolfi and H. Baghdasaryan and J. Ball and M. Battaglieri and I. Bedlinskiy and Biselli, {A. S.} and C. Bookwalter and S. Boiarinov and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and Burkert, {V. D.} and Carman, {D. S.} and A. Celentano and S. Chandavar and Cole, {P. L.} and M. Contalbrigo and V. Crede and A. D'Angelo and A. Daniel and N. Dashyan and {De Vita}, R. and {De Sanctis}, E. and C. Djalali and D. Doughty and R. Dupre and {El Alaoui}, A. and {El Fassi}, L. and L. Elouadrhiri and P. Eugenio and G. Fedotov and Gabrielyan, {M. Y.} and N. Gevorgyan and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and W. Gohn and E. Golovatch and Gothe, {R. W.} and L. Graham and Griffioen, {K. A.} and M. Guidal and N. Guler and L. Guo and K. Hafidi and Watts, {D. P.}",

year = "2012",

month = mar,

day = "19",

doi = "10.1103/PhysRevD.85.052004",

language = "English",

volume = "85",

pages = "--",

journal = "Physical Review D",

issn = "1550-7998",

publisher = "American Physical Society",

number = "5",

}

CLAS Collaboration, Keller, D, Hicks, K, Adhikari, KP, Adikaram, D, Amaryan, MJ, Anghinolfi, M, Baghdasaryan, H, Ball, J, Battaglieri, M, Bedlinskiy, I, Biselli, AS, Bookwalter, C, Boiarinov, S, Branford, D, Briscoe, WJ, Brooks, WK, Burkert, VD, Carman, DS, Celentano, A, Chandavar, S, Cole, PL, Contalbrigo, M, Crede, V, D'Angelo, A, Daniel, A, Dashyan, N, De Vita, R, De Sanctis, E, Djalali, C, Doughty, D, Dupre, R, El Alaoui, A, El Fassi, L, Elouadrhiri, L, Eugenio, P, Fedotov, G, Gabrielyan, MY, Gevorgyan, N, Gilfoyle, GP, Giovanetti, KL, Gohn, W, Golovatch, E, Gothe, RW, Graham, L, Griffioen, KA, Guidal, M, Guler, N, Guo, L, Hafidi, K & Watts, DP 2012, 'Branching ratio of the electromagnetic decay of the Sigma(+)(1385)', Physical Review D, vol. 85, no. 5, 052004, pp. -. https://doi.org/10.1103/PhysRevD.85.052004

TY - JOUR

T1 - Branching ratio of the electromagnetic decay of the Sigma(+)(1385)

AU - CLAS Collaboration

AU - Keller, D.

AU - Hicks, K.

AU - Adhikari, K. P.

AU - Adikaram, D.

AU - Amaryan, M. J.

AU - Anghinolfi, M.

AU - Baghdasaryan, H.

AU - Ball, J.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Biselli, A. S.

AU - Bookwalter, C.

AU - Boiarinov, S.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Carman, D. S.

AU - Celentano, A.

AU - Chandavar, S.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Crede, V.

AU - D'Angelo, A.

AU - Daniel, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Djalali, C.

AU - Doughty, D.

AU - Dupre, R.

AU - El Alaoui, A.

AU - El Fassi, L.

AU - Elouadrhiri, L.

AU - Eugenio, P.

AU - Fedotov, G.

AU - Gabrielyan, M. Y.

AU - Gevorgyan, N.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Gohn, W.

AU - Golovatch, E.

AU - Gothe, R. W.

AU - Graham, L.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Guler, N.

AU - Guo, L.

AU - Hafidi, K.

AU - Watts, D. P.

PY - 2012/3/19

Y1 - 2012/3/19

N2 - The CLAS detector was used to obtain the first ever measurement of the electromagnetic decay of the Sigma*(+)(1385) from the reaction gamma p -> K-0 Sigma*(+)(1385). A real photon beam with a maximum energy of 3.8 GeV was incident on a liquid-hydrogen target, resulting in the photoproduction of the kaon and Sigma* hyperon. Kinematic fitting was used to separate the reaction channel from the background processes. The fitting algorithm exploited a new method to kinematically fit neutrons in the CLAS detector, leading to the measured decay widths ratio Sigma(+)(1385)->Sigma(+)gamma/Sigma(+)(1385)->Sigma(+)pi(0)=11.95 +/-.2.21(stat)(-1.21)(+0.53)(sys)%and a deduced partial width of 250.0 +/- 56.9(stat)(-41.2)(+34.3)(sys) keV. AU-spin symmetry test using the SU(3) flavor-multiplet representation yields predictions for the Sigma*(+)(1385)->Sigma(+)gamma and Sigma*(0)(1385)->Lambda gamma partial widths that agree with the experimental measurements.

AB - The CLAS detector was used to obtain the first ever measurement of the electromagnetic decay of the Sigma*(+)(1385) from the reaction gamma p -> K-0 Sigma*(+)(1385). A real photon beam with a maximum energy of 3.8 GeV was incident on a liquid-hydrogen target, resulting in the photoproduction of the kaon and Sigma* hyperon. Kinematic fitting was used to separate the reaction channel from the background processes. The fitting algorithm exploited a new method to kinematically fit neutrons in the CLAS detector, leading to the measured decay widths ratio Sigma(+)(1385)->Sigma(+)gamma/Sigma(+)(1385)->Sigma(+)pi(0)=11.95 +/-.2.21(stat)(-1.21)(+0.53)(sys)%and a deduced partial width of 250.0 +/- 56.9(stat)(-41.2)(+34.3)(sys) keV. AU-spin symmetry test using the SU(3) flavor-multiplet representation yields predictions for the Sigma*(+)(1385)->Sigma(+)gamma and Sigma*(0)(1385)->Lambda gamma partial widths that agree with the experimental measurements.

U2 - 10.1103/PhysRevD.85.052004

DO - 10.1103/PhysRevD.85.052004

M3 - Article

SN - 1550-7998

VL - 85

SP - -

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052004

ER -

Branching ratio of the electromagnetic decay of the Sigma(+)(1385)

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