Measurement of the Differential Cross Section for the Reaction gamma n -> pi(-)p from Deuterium

CLAS Collaboration; W. Chen; T. Mibe; D. Dutta; H. Gao; J. M. Laget; M. Mirazita; P. Rossi; S. Stepanyan; I. I. Strakovsky; M. J. Amaryan; M. Anghinolfi; H. Bagdasaryan; M. Battaglieri; M. Bellis; B. L. Berman; A. S. Biselli; C. Bookwalter; D. Branford; W. J. Briscoe; W. K. Brooks; V. D. Burkert; S. L. Careccia; D. S. Carman; L. Casey; P. L. Cole; P. Collins; V. Crede; A. Daniel; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; S. Dhamija; R. Dickson; C. Djalali; G. E. Dodge; D. Doughty; H. Egiyan; P. Eugenio; G. Fedotov; A. Fradi; M. Garcon; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; W. Gohn; R. W. Gothe; K. A. Griffioen; M. Guidal; D. P. Watts

doi:10.1103/PhysRevLett.103.012301

Measurement of the Differential Cross Section for the Reaction gamma n -> pi(-)p from Deuterium

CLAS Collaboration, W. Chen, T. Mibe, D. Dutta, H. Gao, J. M. Laget, M. Mirazita, P. Rossi, S. Stepanyan, I. I. Strakovsky, M. J. Amaryan, M. Anghinolfi, H. Bagdasaryan, M. Battaglieri, M. Bellis, B. L. Berman, A. S. Biselli, C. Bookwalter, D. Branford, W. J. BriscoeW. K. Brooks, V. D. Burkert, S. L. Careccia, D. S. Carman, L. Casey, P. L. Cole, P. Collins, V. Crede, A. Daniel, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, S. Dhamija, R. Dickson, C. Djalali, G. E. Dodge, D. Doughty, H. Egiyan, P. Eugenio, G. Fedotov, A. Fradi, M. Garcon, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, W. Gohn, R. W. Gothe, K. A. Griffioen, M. Guidal, D. P. Watts

School of Physics and Astronomy

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

Abstract

We report a measurement of the differential cross section for the gamma n -> pi(-)p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5 GeV and pion center-of-mass (c.m.) angles (theta(c.m.)) between 50 degrees and 115 degrees. We confirm a previous indication of a broad enhancement around a c.m. energy (root s) of 2.1 GeV at theta(c.m.) = 90 degrees in the scaled differential cross section s7 d sigma/dt and a rapid falloff in a center-of-mass energy region of about 400 MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for theta(c.m.) from 70 degrees to 105 degrees.

Original language	English
Article number	012301
Pages (from-to)	-
Number of pages	6
Journal	Physical Review Letters
Volume	103
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.103.012301
Publication status	Published - 3 Jul 2009

Access to Document

10.1103/PhysRevLett.103.012301

Cite this

CLAS Collaboration, Chen, W., Mibe, T., Dutta, D., Gao, H., Laget, J. M., Mirazita, M., Rossi, P., Stepanyan, S., Strakovsky, I. I., Amaryan, M. J., Anghinolfi, M., Bagdasaryan, H., Battaglieri, M., Bellis, M., Berman, B. L., Biselli, A. S., Bookwalter, C., Branford, D., ... Watts, D. P. (2009). Measurement of the Differential Cross Section for the Reaction gamma n -> pi(-)p from Deuterium. Physical Review Letters, 103(1), -. [012301]. https://doi.org/10.1103/PhysRevLett.103.012301

@article{8268e872c25448df8923e89b6efa293c,

title = "Measurement of the Differential Cross Section for the Reaction gamma n -> pi(-)p from Deuterium",

abstract = "We report a measurement of the differential cross section for the gamma n -> pi(-)p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5 GeV and pion center-of-mass (c.m.) angles (theta(c.m.)) between 50 degrees and 115 degrees. We confirm a previous indication of a broad enhancement around a c.m. energy (root s) of 2.1 GeV at theta(c.m.) = 90 degrees in the scaled differential cross section s7 d sigma/dt and a rapid falloff in a center-of-mass energy region of about 400 MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for theta(c.m.) from 70 degrees to 105 degrees.",

author = "{CLAS Collaboration} and W. Chen and T. Mibe and D. Dutta and H. Gao and Laget, {J. M.} and M. Mirazita and P. Rossi and S. Stepanyan and Strakovsky, {I. I.} and Amaryan, {M. J.} and M. Anghinolfi and H. Bagdasaryan and M. Battaglieri and M. Bellis and Berman, {B. L.} and Biselli, {A. S.} and C. Bookwalter and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and Burkert, {V. D.} and Careccia, {S. L.} and Carman, {D. S.} and L. Casey and Cole, {P. L.} and P. Collins and V. Crede and A. Daniel and N. Dashyan and {De Vita}, R. and {De Sanctis}, E. and A. Deur and S. Dhamija and R. Dickson and C. Djalali and Dodge, {G. E.} and D. Doughty and H. Egiyan and P. Eugenio and G. Fedotov and A. Fradi and M. Garcon and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and Girod, {F. X.} and W. Gohn and Gothe, {R. W.} and Griffioen, {K. A.} and M. Guidal and Watts, {D. P.}",

year = "2009",

month = jul,

day = "3",

doi = "10.1103/PhysRevLett.103.012301",

language = "English",

volume = "103",

pages = "--",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "1",

}

CLAS Collaboration, Chen, W, Mibe, T, Dutta, D, Gao, H, Laget, JM, Mirazita, M, Rossi, P, Stepanyan, S, Strakovsky, II, Amaryan, MJ, Anghinolfi, M, Bagdasaryan, H, Battaglieri, M, Bellis, M, Berman, BL, Biselli, AS, Bookwalter, C, Branford, D, Briscoe, WJ, Brooks, WK, Burkert, VD, Careccia, SL, Carman, DS, Casey, L, Cole, PL, Collins, P, Crede, V, Daniel, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Dhamija, S, Dickson, R, Djalali, C, Dodge, GE, Doughty, D, Egiyan, H, Eugenio, P, Fedotov, G, Fradi, A, Garcon, M, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Gohn, W, Gothe, RW, Griffioen, KA, Guidal, M & Watts, DP 2009, 'Measurement of the Differential Cross Section for the Reaction gamma n -> pi(-)p from Deuterium', Physical Review Letters, vol. 103, no. 1, 012301, pp. -. https://doi.org/10.1103/PhysRevLett.103.012301

TY - JOUR

T1 - Measurement of the Differential Cross Section for the Reaction gamma n -> pi(-)p from Deuterium

AU - CLAS Collaboration

AU - Chen, W.

AU - Mibe, T.

AU - Dutta, D.

AU - Gao, H.

AU - Laget, J. M.

AU - Mirazita, M.

AU - Rossi, P.

AU - Stepanyan, S.

AU - Strakovsky, I. I.

AU - Amaryan, M. J.

AU - Anghinolfi, M.

AU - Bagdasaryan, H.

AU - Battaglieri, M.

AU - Bellis, M.

AU - Berman, B. L.

AU - Biselli, A. S.

AU - Bookwalter, C.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Careccia, S. L.

AU - Carman, D. S.

AU - Casey, L.

AU - Cole, P. L.

AU - Collins, P.

AU - Crede, V.

AU - Daniel, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Deur, A.

AU - Dhamija, S.

AU - Dickson, R.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Doughty, D.

AU - Egiyan, H.

AU - Eugenio, P.

AU - Fedotov, G.

AU - Fradi, A.

AU - Garcon, M.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Gohn, W.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Watts, D. P.

PY - 2009/7/3

Y1 - 2009/7/3

N2 - We report a measurement of the differential cross section for the gamma n -> pi(-)p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5 GeV and pion center-of-mass (c.m.) angles (theta(c.m.)) between 50 degrees and 115 degrees. We confirm a previous indication of a broad enhancement around a c.m. energy (root s) of 2.1 GeV at theta(c.m.) = 90 degrees in the scaled differential cross section s7 d sigma/dt and a rapid falloff in a center-of-mass energy region of about 400 MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for theta(c.m.) from 70 degrees to 105 degrees.

AB - We report a measurement of the differential cross section for the gamma n -> pi(-)p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5 GeV and pion center-of-mass (c.m.) angles (theta(c.m.)) between 50 degrees and 115 degrees. We confirm a previous indication of a broad enhancement around a c.m. energy (root s) of 2.1 GeV at theta(c.m.) = 90 degrees in the scaled differential cross section s7 d sigma/dt and a rapid falloff in a center-of-mass energy region of about 400 MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for theta(c.m.) from 70 degrees to 105 degrees.

U2 - 10.1103/PhysRevLett.103.012301

DO - 10.1103/PhysRevLett.103.012301

M3 - Article

VL - 103

SP - -

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 1

M1 - 012301

ER -

Measurement of the Differential Cross Section for the Reaction gamma n -> pi(-)p from Deuterium

Abstract

Access to Document

Fingerprint

Cite this