Search for Θ+(1540) pentaquark in high-statistics measurement of γp→K̄0K+n at CLAS

M. Battaglieri; R. de Vita; V. Kubarovsky; L. Guo; G. S. Mutchler; P. Stoler; D. P. Weygand; P. Ambrozewicz; M. Anghinolfi; G. Asryan; H. Avakian; H. Bagdasaryan; N. Baillie; J. P. Ball; N. A. Baltzell; V. Batourine; I. Bedlinskiy; M. Bellis; N. Benmouna; B. L. Berman; A. S. Biselli; S. Bouchigny; S. Boiarinov; R. Bradford; D. Branford; W. J. Briscoe; W. K. Brooks; S. Bültmann; V. D. Burkert; C. Butuceanu; J. R. Calarco; S. L. Careccia; D. S. Carman; S. Chen; E. Clinton; P. L. Cole; P. Coltharp; D. Crabb; H. Crannell; J. P. Cummings; D. Dale; E. de Sanctis; P. V. Degtyarenko; A. Deur; K. V. Dharmawardane; C. Djalali; G. E. Dodge; J. Donnelly; D. Doughty; M. Dugger

doi:10.1103/PhysRevLett.96.042001

Search for Θ+(1540) pentaquark in high-statistics measurement of γp→K̄0K+n at CLAS

M. Battaglieri, R. de Vita, V. Kubarovsky, L. Guo, G. S. Mutchler, P. Stoler, D. P. Weygand, P. Ambrozewicz, M. Anghinolfi, G. Asryan, H. Avakian, H. Bagdasaryan, N. Baillie, J. P. Ball, N. A. Baltzell, V. Batourine, I. Bedlinskiy, M. Bellis, N. Benmouna, B. L. BermanA. S. Biselli, S. Bouchigny, S. Boiarinov, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, S. Bültmann, V. D. Burkert, C. Butuceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, S. Chen, E. Clinton, P. L. Cole, P. Coltharp, D. Crabb, H. Crannell, J. P. Cummings, D. Dale, E. de Sanctis, P. V. Degtyarenko, A. Deur, K. V. Dharmawardane, C. Djalali, G. E. Dodge, J. Donnelly, D. Doughty, M. Dugger

Physics and Astronomy (Twin Cities)

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Abstract

The exclusive reaction γp→K̄0K+n was studied in the photon energy range between 1.6 and 3.8 GeV searching for evidence of the exotic baryon Θ+(1540)→nK+. The decay to nK+ requires the assignment of strangeness S=+1 to any observed resonance. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility corresponding to an integrated luminosity of 70pb-1. No evidence for the Θ+ pentaquark was found. Upper limits were set on the production cross section as function of center-of-mass angle and nK+ mass. The 95% C.L. upper limit on the total cross section for a narrow resonance at 1540 MeV was found to be 0.8 nb.

Original language	English (US)
Article number	042001
Journal	Physical review letters
Volume	96
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.96.042001
State	Published - 2006

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10.1103/PhysRevLett.96.042001

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Battaglieri, M., de Vita, R., Kubarovsky, V., Guo, L., Mutchler, G. S., Stoler, P., Weygand, D. P., Ambrozewicz, P., Anghinolfi, M., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., Batourine, V., Bedlinskiy, I., Bellis, M., Benmouna, N., ... Dugger, M. (2006). Search for Θ+(1540) pentaquark in high-statistics measurement of γp→K̄0K+n at CLAS. Physical review letters, 96(4), Article 042001. https://doi.org/10.1103/PhysRevLett.96.042001

Battaglieri, M, de Vita, R, Kubarovsky, V, Guo, L, Mutchler, GS, Stoler, P, Weygand, DP, Ambrozewicz, P, Anghinolfi, M, Asryan, G, Avakian, H, Bagdasaryan, H, Baillie, N, Ball, JP, Baltzell, NA, Batourine, V, Bedlinskiy, I, Bellis, M, Benmouna, N, Berman, BL, Biselli, AS, Bouchigny, S, Boiarinov, S, Bradford, R, Branford, D, Briscoe, WJ, Brooks, WK, Bültmann, S, Burkert, VD, Butuceanu, C, Calarco, JR, Careccia, SL, Carman, DS, Chen, S, Clinton, E, Cole, PL, Coltharp, P, Crabb, D, Crannell, H, Cummings, JP, Dale, D, de Sanctis, E, Degtyarenko, PV, Deur, A, Dharmawardane, KV, Djalali, C, Dodge, GE, Donnelly, J, Doughty, D & Dugger, M 2006, 'Search for Θ+(1540) pentaquark in high-statistics measurement of γp→K̄0K+n at CLAS', Physical review letters, vol. 96, no. 4, 042001. https://doi.org/10.1103/PhysRevLett.96.042001

@article{00e9e08cbba44892a8bc9be82629e69b,

title = "Search for Θ+(1540) pentaquark in high-statistics measurement of γp→{\=K}0K+n at CLAS",

abstract = "The exclusive reaction γp→{\=K}0K+n was studied in the photon energy range between 1.6 and 3.8 GeV searching for evidence of the exotic baryon Θ+(1540)→nK+. The decay to nK+ requires the assignment of strangeness S=+1 to any observed resonance. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility corresponding to an integrated luminosity of 70pb-1. No evidence for the Θ+ pentaquark was found. Upper limits were set on the production cross section as function of center-of-mass angle and nK+ mass. The 95% C.L. upper limit on the total cross section for a narrow resonance at 1540 MeV was found to be 0.8 nb.",

author = "M. Battaglieri and {de Vita}, R. and V. Kubarovsky and L. Guo and Mutchler, {G. S.} and P. Stoler and Weygand, {D. P.} and P. Ambrozewicz and M. Anghinolfi and G. Asryan and H. Avakian and H. Bagdasaryan and N. Baillie and Ball, {J. P.} and Baltzell, {N. A.} and V. Batourine and I. Bedlinskiy and M. Bellis and N. Benmouna and Berman, {B. L.} and Biselli, {A. S.} and S. Bouchigny and S. Boiarinov and R. Bradford and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and S. B{\"u}ltmann and Burkert, {V. D.} and C. Butuceanu and Calarco, {J. R.} and Careccia, {S. L.} and Carman, {D. S.} and S. Chen and E. Clinton and Cole, {P. L.} and P. Coltharp and D. Crabb and H. Crannell and Cummings, {J. P.} and D. Dale and {de Sanctis}, E. and Degtyarenko, {P. V.} and A. Deur and Dharmawardane, {K. V.} and C. Djalali and Dodge, {G. E.} and J. Donnelly and D. Doughty and M. Dugger",

year = "2006",

doi = "10.1103/PhysRevLett.96.042001",

language = "English (US)",

volume = "96",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "4",

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T1 - Search for Θ+(1540) pentaquark in high-statistics measurement of γp→K̄0K+n at CLAS

AU - Battaglieri, M.

AU - de Vita, R.

AU - Kubarovsky, V.

AU - Guo, L.

AU - Mutchler, G. S.

AU - Stoler, P.

AU - Weygand, D. P.

AU - Ambrozewicz, P.

AU - Anghinolfi, M.

AU - Asryan, G.

AU - Avakian, H.

AU - Bagdasaryan, H.

AU - Baillie, N.

AU - Ball, J. P.

AU - Baltzell, N. A.

AU - Batourine, V.

AU - Bedlinskiy, I.

AU - Bellis, M.

AU - Benmouna, N.

AU - Berman, B. L.

AU - Biselli, A. S.

AU - Bouchigny, S.

AU - Boiarinov, S.

AU - Bradford, R.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Bültmann, S.

AU - Burkert, V. D.

AU - Butuceanu, C.

AU - Calarco, J. R.

AU - Careccia, S. L.

AU - Carman, D. S.

AU - Chen, S.

AU - Clinton, E.

AU - Cole, P. L.

AU - Coltharp, P.

AU - Crabb, D.

AU - Crannell, H.

AU - Cummings, J. P.

AU - Dale, D.

AU - de Sanctis, E.

AU - Degtyarenko, P. V.

AU - Deur, A.

AU - Dharmawardane, K. V.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Donnelly, J.

AU - Doughty, D.

AU - Dugger, M.

PY - 2006

Y1 - 2006

N2 - The exclusive reaction γp→K̄0K+n was studied in the photon energy range between 1.6 and 3.8 GeV searching for evidence of the exotic baryon Θ+(1540)→nK+. The decay to nK+ requires the assignment of strangeness S=+1 to any observed resonance. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility corresponding to an integrated luminosity of 70pb-1. No evidence for the Θ+ pentaquark was found. Upper limits were set on the production cross section as function of center-of-mass angle and nK+ mass. The 95% C.L. upper limit on the total cross section for a narrow resonance at 1540 MeV was found to be 0.8 nb.

AB - The exclusive reaction γp→K̄0K+n was studied in the photon energy range between 1.6 and 3.8 GeV searching for evidence of the exotic baryon Θ+(1540)→nK+. The decay to nK+ requires the assignment of strangeness S=+1 to any observed resonance. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility corresponding to an integrated luminosity of 70pb-1. No evidence for the Θ+ pentaquark was found. Upper limits were set on the production cross section as function of center-of-mass angle and nK+ mass. The 95% C.L. upper limit on the total cross section for a narrow resonance at 1540 MeV was found to be 0.8 nb.

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UR - http://www.scopus.com/inward/citedby.url?scp=33144469733&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.96.042001

DO - 10.1103/PhysRevLett.96.042001

M3 - Article

AN - SCOPUS:33144469733

SN - 0031-9007

VL - 96

JO - Physical review letters

JF - Physical review letters

IS - 4

M1 - 042001

ER -

Search for Θ+(1540) pentaquark in high-statistics measurement of γp→K̄0K+n at CLAS

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