Differential cross section and recoil polarization measurements for the γp→K+Λ reaction using CLAS at Jefferson Lab

M. E. McCracken; M. Bellis; C. A. Meyer; M. Williams; K. P. Adhikari; M. Anghinolfi; J. Ball; M. Battaglieri; B. L. Berman; A. S. Biselli; D. Branford; W. J. Briscoe; W. K. Brooks; V. D. Burkert; S. L. Careccia; D. S. Carman; P. L. Cole; P. Collins; V. Crede; A. D'Angelo; A. Daniel; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; B. Dey; S. Dhamija; R. Dickson; C. Djalali; D. Doughty; M. Dugger; R. Dupre; A. El Alaoui; P. Eugenio; S. Fegan; A. Fradi; M. Y. Gabrielyan; K. L. Giovanetti; F. X. Girod; J. T. Goetz; W. Gohn; R. W. Gothe; K. A. Griffioen; M. Guidal; K. Hafidi; H. Hakobyanm; C. Hanretty; N. Hassall; K. Hicks; M. Holtrop

doi:10.1103/PhysRevC.81.025201

Differential cross section and recoil polarization measurements for the γp→K⁺Λ reaction using CLAS at Jefferson Lab

M. E. McCracken
, M. Bellis
, C. A. Meyer
, M. Williams
, K. P. Adhikari
, M. Anghinolfi
, J. Ball
, M. Battaglieri
, B. L. Berman
, A. S. Biselli
, D. Branford
, W. J. Briscoe
, W. K. Brooks
, V. D. Burkert
, S. L. Careccia
, D. S. Carman
, P. L. Cole
, P. Collins
, V. Crede
, A. D'Angelo

A. Daniel, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, B. Dey, S. Dhamija, R. Dickson, C. Djalali, D. Doughty, M. Dugger, R. Dupre, A. El Alaoui, P. Eugenio, S. Fegan, A. Fradi, M. Y. Gabrielyan, K. L. Giovanetti, F. X. Girod, J. T. Goetz, W. Gohn, R. W. Gothe, K. A. Griffioen, M. Guidal, K. Hafidi, H. Hakobyanm, C. Hanretty, N. Hassall, K. Hicks, M. Holtrop

Physics and Astronomy (Twin Cities)

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

198 Scopus citations

Abstract

We present measurements of the differential cross section and Λ recoil polarization for the γp→K⁺Λ reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K⁺ production angles. Independent analyses were performed using the K⁺pπ^- and K⁺p (missing π^-) final-state topologies; results from these analyses were found to exhibit good agreement. These differential-cross-section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300-MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500-MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of nonresonant K⁺Λ photoproduction mechanisms at all production angles.

Original language	English (US)
Article number	025201
Journal	Physical Review C - Nuclear Physics
Volume	81
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.81.025201
State	Published - Feb 11 2010

Publisher link

10.1103/PhysRevC.81.025201

Find It

Find It at U of M Libraries

Cite this

McCracken, M. E., Bellis, M., Meyer, C. A., Williams, M., Adhikari, K. P., Anghinolfi, M., Ball, J., Battaglieri, M., Berman, B. L., Biselli, A. S., Branford, D., Briscoe, W. J., Brooks, W. K., Burkert, V. D., Careccia, S. L., Carman, D. S., Cole, P. L., Collins, P., Crede, V., ... Holtrop, M. (2010). Differential cross section and recoil polarization measurements for the γp→K⁺Λ reaction using CLAS at Jefferson Lab. Physical Review C - Nuclear Physics, 81(2), Article 025201. https://doi.org/10.1103/PhysRevC.81.025201

McCracken, ME, Bellis, M, Meyer, CA, Williams, M, Adhikari, KP, Anghinolfi, M, Ball, J, Battaglieri, M, Berman, BL, Biselli, AS, Branford, D, Briscoe, WJ, Brooks, WK, Burkert, VD, Careccia, SL, Carman, DS, Cole, PL, Collins, P, Crede, V, D'Angelo, A, Daniel, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Dey, B, Dhamija, S, Dickson, R, Djalali, C, Doughty, D, Dugger, M, Dupre, R, El Alaoui, A, Eugenio, P, Fegan, S, Fradi, A, Gabrielyan, MY, Giovanetti, KL, Girod, FX, Goetz, JT, Gohn, W, Gothe, RW, Griffioen, KA, Guidal, M, Hafidi, K, Hakobyanm, H, Hanretty, C, Hassall, N, Hicks, K & Holtrop, M 2010, 'Differential cross section and recoil polarization measurements for the γp→K⁺Λ reaction using CLAS at Jefferson Lab', Physical Review C - Nuclear Physics, vol. 81, no. 2, 025201. https://doi.org/10.1103/PhysRevC.81.025201

@article{ed99e8afb55e482383d328acf603f539,

title = "Differential cross section and recoil polarization measurements for the γp→K+Λ reaction using CLAS at Jefferson Lab",

abstract = "We present measurements of the differential cross section and Λ recoil polarization for the γp→K+Λ reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K+ production angles. Independent analyses were performed using the K+pπ- and K+p (missing π-) final-state topologies; results from these analyses were found to exhibit good agreement. These differential-cross-section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300-MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500-MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of nonresonant K+Λ photoproduction mechanisms at all production angles.",

author = "McCracken, \{M. E.\} and M. Bellis and Meyer, \{C. A.\} and M. Williams and Adhikari, \{K. P.\} and M. Anghinolfi and J. Ball and M. Battaglieri and Berman, \{B. L.\} and Biselli, \{A. S.\} and D. Branford and Briscoe, \{W. J.\} and Brooks, \{W. K.\} and Burkert, \{V. D.\} and Careccia, \{S. L.\} and Carman, \{D. S.\} and Cole, \{P. L.\} and P. Collins and V. Crede and A. D'Angelo and A. Daniel and N. Dashyan and \{De Vita\}, R. and \{De Sanctis\}, E. and A. Deur and B. Dey and S. Dhamija and R. Dickson and C. Djalali and D. Doughty and M. Dugger and R. Dupre and \{El Alaoui\}, A. and P. Eugenio and S. Fegan and A. Fradi and Gabrielyan, \{M. Y.\} and Giovanetti, \{K. L.\} and Girod, \{F. X.\} and Goetz, \{J. T.\} and W. Gohn and Gothe, \{R. W.\} and Griffioen, \{K. A.\} and M. Guidal and K. Hafidi and H. Hakobyanm and C. Hanretty and N. Hassall and K. Hicks and M. Holtrop",

year = "2010",

month = feb,

day = "11",

doi = "10.1103/PhysRevC.81.025201",

language = "English (US)",

volume = "81",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "2",

}

TY - JOUR

T1 - Differential cross section and recoil polarization measurements for the γp→K+Λ reaction using CLAS at Jefferson Lab

AU - McCracken, M. E.

AU - Bellis, M.

AU - Meyer, C. A.

AU - Williams, M.

AU - Adhikari, K. P.

AU - Anghinolfi, M.

AU - Ball, J.

AU - Battaglieri, M.

AU - Berman, B. L.

AU - Biselli, A. S.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Careccia, S. L.

AU - Carman, D. S.

AU - Cole, P. L.

AU - Collins, P.

AU - Crede, V.

AU - D'Angelo, A.

AU - Daniel, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Deur, A.

AU - Dey, B.

AU - Dhamija, S.

AU - Dickson, R.

AU - Djalali, C.

AU - Doughty, D.

AU - Dugger, M.

AU - Dupre, R.

AU - El Alaoui, A.

AU - Eugenio, P.

AU - Fegan, S.

AU - Fradi, A.

AU - Gabrielyan, M. Y.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Gohn, W.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Hafidi, K.

AU - Hakobyanm, H.

AU - Hanretty, C.

AU - Hassall, N.

AU - Hicks, K.

AU - Holtrop, M.

PY - 2010/2/11

Y1 - 2010/2/11

N2 - We present measurements of the differential cross section and Λ recoil polarization for the γp→K+Λ reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K+ production angles. Independent analyses were performed using the K+pπ- and K+p (missing π-) final-state topologies; results from these analyses were found to exhibit good agreement. These differential-cross-section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300-MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500-MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of nonresonant K+Λ photoproduction mechanisms at all production angles.

AB - We present measurements of the differential cross section and Λ recoil polarization for the γp→K+Λ reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K+ production angles. Independent analyses were performed using the K+pπ- and K+p (missing π-) final-state topologies; results from these analyses were found to exhibit good agreement. These differential-cross-section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300-MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500-MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of nonresonant K+Λ photoproduction mechanisms at all production angles.

UR - https://www.scopus.com/pages/publications/77649208706

UR - https://www.scopus.com/pages/publications/77649208706#tab=citedBy

U2 - 10.1103/PhysRevC.81.025201

DO - 10.1103/PhysRevC.81.025201

M3 - Article

AN - SCOPUS:77649208706

SN - 0556-2813

VL - 81

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 2

M1 - 025201

ER -

Differential cross section and recoil polarization measurements for the γp→K⁺Λ reaction using CLAS at Jefferson Lab

Abstract

Publisher link

Find It

Other files and links

Fingerprint

Cite this