Beam-target helicity asymmetry e in K0 Λ and K0 Σ0 photoproduction on the neutron

The CLAS Collaboration

doi:10.1103/PhysRevC.98.045205

Beam-target helicity asymmetry e in K0 Λ and K0 Σ0 photoproduction on the neutron

The CLAS Collaboration

Carnegie Mellon University
GAC RandD Center Silicon Valley Inc.
National Institute for Nuclear Physics
University of Rome Tor Vergata
Thomas Jefferson National Accelerator Facility
University of Edinburgh
University of Virginia
Catholic University of America
University of Bonn
University of Iowa
RAS - Saint Petersburg Nuclear Physics Institute
George Washington University
Old Dominion University
Mississippi State University
University of Kentucky
Florida International University
Florida State University
Université Paris-Saclay
Alikhanov Institute for Theoretical and Experimental Physics
Fairfield University
University of Connecticut
Ohio University
CNRS/IN2P3
University of Ferrara
Idaho State University

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

12 Scopus citations

Abstract

We report the first measurements of the E beam-target helicity asymmetry for the γ - n - →K0Λ and K0Σ0 channels in the energy range 1.70≤W≤2.34 GeV. The CLAS system at Jefferson Lab uses a circularly polarized photon beam and a target consisting of longitudinally polarized solid molecular hydrogen deuteride with low background contamination for the measurements. The multivariate analysis method boosted decision trees is used to isolate the reactions of interest. Comparisons with predictions from the KaonMAID, SAID, and Bonn-Gatchina models are presented. These results will help separate the isospin I=0 and I=1 photocoupling transition amplitudes in pseudoscalar meson photoproduction.

Original language	English
Article number	045205
Journal	Physical Review C
Volume	98
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.98.045205
State	Published - 19 Oct 2018

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10.1103/PhysRevC.98.045205

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@article{5c648c2cbeff488f860a4025ceb341c4,

title = "Beam-target helicity asymmetry e in K0 Λ and K0 Σ0 photoproduction on the neutron",

abstract = "We report the first measurements of the E beam-target helicity asymmetry for the γ - n - →K0Λ and K0Σ0 channels in the energy range 1.70≤W≤2.34 GeV. The CLAS system at Jefferson Lab uses a circularly polarized photon beam and a target consisting of longitudinally polarized solid molecular hydrogen deuteride with low background contamination for the measurements. The multivariate analysis method boosted decision trees is used to isolate the reactions of interest. Comparisons with predictions from the KaonMAID, SAID, and Bonn-Gatchina models are presented. These results will help separate the isospin I=0 and I=1 photocoupling transition amplitudes in pseudoscalar meson photoproduction.",

author = "\{The CLAS Collaboration\} and Ho, \{D. H.\} and Schumacher, \{R. A.\} and A. D'Angelo and A. Deur and J. Fleming and C. Hanretty and T. Kageya and Klein, \{F. J.\} and E. Klempt and Lowry, \{M. M.\} and H. Lu and Nikonov, \{V. A.\} and P. Peng and Sandorfi, \{A. M.\} and Sarantsev, \{A. V.\} and Strakovsky, \{I. I.\} and Walford, \{N. K.\} and X. Wei and Workman, \{R. L.\} and Adhikari, \{K. P.\} and S. Adhikari and D. Adikaram and Z. Akbar and J. Ball and L. Barion and M. Bashkanov and Bass, \{C. D.\} and M. Battaglieri and I. Bedlinskiy and Biselli, \{A. S.\} and Briscoe, \{W. J.\} and S. Boiarinov and Burkert, \{V. D.\} and F. Cao and Carman, \{D. S.\} and A. Celentano and S. Chandavar and G. Charles and P. Chatagnon and T. Chetry and G. Ciullo and Clary, \{B. A.\} and P. Cole and P. Collins and M. Contalbrigo and V. Crede and \{De Vita\}, R. and M. Defurne and S. Diehl and Jo, \{H. S.\}",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

month = oct,

day = "19",

doi = "10.1103/PhysRevC.98.045205",

language = "English",

volume = "98",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "4",

}

TY - JOUR

T1 - Beam-target helicity asymmetry e in K0 Λ and K0 Σ0 photoproduction on the neutron

AU - The CLAS Collaboration

AU - Ho, D. H.

AU - Schumacher, R. A.

AU - D'Angelo, A.

AU - Deur, A.

AU - Fleming, J.

AU - Hanretty, C.

AU - Kageya, T.

AU - Klein, F. J.

AU - Klempt, E.

AU - Lowry, M. M.

AU - Lu, H.

AU - Nikonov, V. A.

AU - Peng, P.

AU - Sandorfi, A. M.

AU - Sarantsev, A. V.

AU - Strakovsky, I. I.

AU - Walford, N. K.

AU - Wei, X.

AU - Workman, R. L.

AU - Adhikari, K. P.

AU - Adhikari, S.

AU - Adikaram, D.

AU - Akbar, Z.

AU - Ball, J.

AU - Barion, L.

AU - Bashkanov, M.

AU - Bass, C. D.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Biselli, A. S.

AU - Briscoe, W. J.

AU - Boiarinov, S.

AU - Burkert, V. D.

AU - Cao, F.

AU - Carman, D. S.

AU - Celentano, A.

AU - Chandavar, S.

AU - Charles, G.

AU - Chatagnon, P.

AU - Chetry, T.

AU - Ciullo, G.

AU - Clary, B. A.

AU - Cole, P.

AU - Collins, P.

AU - Contalbrigo, M.

AU - Crede, V.

AU - De Vita, R.

AU - Defurne, M.

AU - Diehl, S.

AU - Jo, H. S.

PY - 2018/10/19

Y1 - 2018/10/19

N2 - We report the first measurements of the E beam-target helicity asymmetry for the γ - n - →K0Λ and K0Σ0 channels in the energy range 1.70≤W≤2.34 GeV. The CLAS system at Jefferson Lab uses a circularly polarized photon beam and a target consisting of longitudinally polarized solid molecular hydrogen deuteride with low background contamination for the measurements. The multivariate analysis method boosted decision trees is used to isolate the reactions of interest. Comparisons with predictions from the KaonMAID, SAID, and Bonn-Gatchina models are presented. These results will help separate the isospin I=0 and I=1 photocoupling transition amplitudes in pseudoscalar meson photoproduction.

AB - We report the first measurements of the E beam-target helicity asymmetry for the γ - n - →K0Λ and K0Σ0 channels in the energy range 1.70≤W≤2.34 GeV. The CLAS system at Jefferson Lab uses a circularly polarized photon beam and a target consisting of longitudinally polarized solid molecular hydrogen deuteride with low background contamination for the measurements. The multivariate analysis method boosted decision trees is used to isolate the reactions of interest. Comparisons with predictions from the KaonMAID, SAID, and Bonn-Gatchina models are presented. These results will help separate the isospin I=0 and I=1 photocoupling transition amplitudes in pseudoscalar meson photoproduction.

UR - https://www.scopus.com/pages/publications/85055326183

U2 - 10.1103/PhysRevC.98.045205

DO - 10.1103/PhysRevC.98.045205

M3 - Article

AN - SCOPUS:85055326183

SN - 2469-9985

VL - 98

JO - Physical Review C

JF - Physical Review C

IS - 4

M1 - 045205

ER -

Beam-target helicity asymmetry e in K0 Λ and K0 Σ0 photoproduction on the neutron

Abstract

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