Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states

CLAS Collaboration; A. V. Anisovich; K. Hicks; E. Klempt; V. A. Nikonov; A. Sarantsev; W. Tang; D. Adikaram; Z. Akbar; M. J. Amaryan; S. Anefalos Pereira; R. A. Badui; J. Ball; M. Battaglieri; V. Batourine; I. Bedlinskiy; A. S. Biselli; W. J. Briscoe; V. D. Burkert; D. S. Carman; A. Celentano; S. Chandavar; T. Chetry; G. Ciullo; L. Clark; P. L. Cole; N. Compton; M. Contalbrigo; V. Crede; A. D'Angelo; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; C. Djalali; M. Dugger; R. Dupre; H. Egiyan; A. El Alaoui; L. El Fassi; R. Eugenio; E. Fanchini; G. Fedotov; A. Filippi; J. A. Fleming; N. Gevorgyan; S. M. Hughes; D. Sokhan; I. Stankovic; D. P. Watts; N. Zachariou

doi:10.1016/j.physletb.2017.05.029

Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states

CLAS Collaboration, A. V. Anisovich, K. Hicks^*, E. Klempt, V. A. Nikonov, A. Sarantsev, W. Tang, D. Adikaram, Z. Akbar, M. J. Amaryan, S. Anefalos Pereira, R. A. Badui, J. Ball, M. Battaglieri, V. Batourine, I. Bedlinskiy, A. S. Biselli, W. J. Briscoe, V. D. Burkert, D. S. CarmanA. Celentano, S. Chandavar, T. Chetry, G. Ciullo, L. Clark, P. L. Cole, N. Compton, M. Contalbrigo, V. Crede, A. D'Angelo, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, C. Djalali, M. Dugger, R. Dupre, H. Egiyan, A. El Alaoui, L. El Fassi, R. Eugenio, E. Fanchini, G. Fedotov, A. Filippi, J. A. Fleming, N. Gevorgyan, S. M. Hughes, D. Sokhan, I. Stankovic, D. P. Watts, N. Zachariou

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

The reaction gamma p -> K*(+)Lambda was measured using the CLAS detector for photon energies between the threshold and 3.9 GeV at the Thomas Jefferson National Accelerator Facility. For the first time, spin-density matrix elements have been extracted for this reaction. Differential cross sections, spin density matrix elements, and the Lambda recoil polarization are compared with theoretical predictions using the BnGa partial wave analysis. The main result is the evidence for significant contributions from N(1895) 1/2(-) and N(2100) 1/2(+) to the reaction. Branching ratios for decays into K*Lambda for these resonances and further resonances are reported. (C) 2017 The Author. Published by Elsevier B.V.

Original language	English
Pages (from-to)	142-150
Number of pages	9
Journal	Physics Letters B
Volume	771
DOIs	https://doi.org/10.1016/j.physletb.2017.05.029
Publication status	Published - 10 Aug 2017

Keywords / Materials (for Non-textual outputs)

Baryon spectroscopy
Meson photoproduction
Polarization observables
PARTIAL-WAVE ANALYSIS
BARYON RESONANCES
GAMMA-P
AMPLITUDES
DECAYS

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10.1016/j.physletb.2017.05.029

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CLAS Collaboration, Anisovich, A. V., Hicks, K., Klempt, E., Nikonov, V. A., Sarantsev, A., Tang, W., Adikaram, D., Akbar, Z., Amaryan, M. J., Pereira, S. A., Badui, R. A., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., Briscoe, W. J., Burkert, V. D., ... Zachariou, N. (2017). Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states. Physics Letters B, 771, 142-150. https://doi.org/10.1016/j.physletb.2017.05.029

@article{168d470656a745908b9740def4577c43,

title = "Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states",

abstract = "The reaction gamma p -> K*(+)Lambda was measured using the CLAS detector for photon energies between the threshold and 3.9 GeV at the Thomas Jefferson National Accelerator Facility. For the first time, spin-density matrix elements have been extracted for this reaction. Differential cross sections, spin density matrix elements, and the Lambda recoil polarization are compared with theoretical predictions using the BnGa partial wave analysis. The main result is the evidence for significant contributions from N(1895) 1/2(-) and N(2100) 1/2(+) to the reaction. Branching ratios for decays into K*Lambda for these resonances and further resonances are reported. (C) 2017 The Author. Published by Elsevier B.V.",

keywords = "Baryon spectroscopy, Meson photoproduction, Polarization observables, PARTIAL-WAVE ANALYSIS, BARYON RESONANCES, GAMMA-P, AMPLITUDES, DECAYS",

author = "{CLAS Collaboration} and Anisovich, {A. V.} and K. Hicks and E. Klempt and Nikonov, {V. A.} and A. Sarantsev and W. Tang and D. Adikaram and Z. Akbar and Amaryan, {M. J.} and Pereira, {S. Anefalos} and Badui, {R. A.} and J. Ball and M. Battaglieri and V. Batourine and I. Bedlinskiy and Biselli, {A. S.} and Briscoe, {W. J.} and Burkert, {V. D.} and Carman, {D. S.} and A. Celentano and S. Chandavar and T. Chetry and G. Ciullo and L. Clark and Cole, {P. L.} and N. Compton and M. Contalbrigo and V. Crede and A. D'Angelo and N. Dashyan and {De Vita}, R. and {De Sanctis}, E. and A. Deur and C. Djalali and M. Dugger and R. Dupre and H. Egiyan and {El Alaoui}, A. and {El Fassi}, L. and R. Eugenio and E. Fanchini and G. Fedotov and A. Filippi and Fleming, {J. A.} and N. Gevorgyan and Hughes, {S. M.} and D. Sokhan and I. Stankovic and Watts, {D. P.} and N. Zachariou",

year = "2017",

month = aug,

day = "10",

doi = "10.1016/j.physletb.2017.05.029",

language = "English",

volume = "771",

pages = "142--150",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

}

CLAS Collaboration, Anisovich, AV, Hicks, K, Klempt, E, Nikonov, VA, Sarantsev, A, Tang, W, Adikaram, D, Akbar, Z, Amaryan, MJ, Pereira, SA, Badui, RA, Ball, J, Battaglieri, M, Batourine, V, Bedlinskiy, I, Biselli, AS, Briscoe, WJ, Burkert, VD, Carman, DS, Celentano, A, Chandavar, S, Chetry, T, Ciullo, G, Clark, L, Cole, PL, Compton, N, Contalbrigo, M, Crede, V, D'Angelo, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Djalali, C, Dugger, M, Dupre, R, Egiyan, H, El Alaoui, A, El Fassi, L, Eugenio, R, Fanchini, E, Fedotov, G, Filippi, A, Fleming, JA, Gevorgyan, N, Hughes, SM, Sokhan, D, Stankovic, I, Watts, DP & Zachariou, N 2017, 'Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states', Physics Letters B, vol. 771, pp. 142-150. https://doi.org/10.1016/j.physletb.2017.05.029

TY - JOUR

T1 - Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states

AU - CLAS Collaboration

AU - Anisovich, A. V.

AU - Hicks, K.

AU - Klempt, E.

AU - Nikonov, V. A.

AU - Sarantsev, A.

AU - Tang, W.

AU - Adikaram, D.

AU - Akbar, Z.

AU - Amaryan, M. J.

AU - Pereira, S. Anefalos

AU - Badui, R. A.

AU - Ball, J.

AU - Battaglieri, M.

AU - Batourine, V.

AU - Bedlinskiy, I.

AU - Biselli, A. S.

AU - Briscoe, W. J.

AU - Burkert, V. D.

AU - Carman, D. S.

AU - Celentano, A.

AU - Chandavar, S.

AU - Chetry, T.

AU - Ciullo, G.

AU - Clark, L.

AU - Cole, P. L.

AU - Compton, N.

AU - Contalbrigo, M.

AU - Crede, V.

AU - D'Angelo, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Deur, A.

AU - Djalali, C.

AU - Dugger, M.

AU - Dupre, R.

AU - Egiyan, H.

AU - El Alaoui, A.

AU - El Fassi, L.

AU - Eugenio, R.

AU - Fanchini, E.

AU - Fedotov, G.

AU - Filippi, A.

AU - Fleming, J. A.

AU - Gevorgyan, N.

AU - Hughes, S. M.

AU - Sokhan, D.

AU - Stankovic, I.

AU - Watts, D. P.

AU - Zachariou, N.

PY - 2017/8/10

Y1 - 2017/8/10

N2 - The reaction gamma p -> K*(+)Lambda was measured using the CLAS detector for photon energies between the threshold and 3.9 GeV at the Thomas Jefferson National Accelerator Facility. For the first time, spin-density matrix elements have been extracted for this reaction. Differential cross sections, spin density matrix elements, and the Lambda recoil polarization are compared with theoretical predictions using the BnGa partial wave analysis. The main result is the evidence for significant contributions from N(1895) 1/2(-) and N(2100) 1/2(+) to the reaction. Branching ratios for decays into K*Lambda for these resonances and further resonances are reported. (C) 2017 The Author. Published by Elsevier B.V.

AB - The reaction gamma p -> K*(+)Lambda was measured using the CLAS detector for photon energies between the threshold and 3.9 GeV at the Thomas Jefferson National Accelerator Facility. For the first time, spin-density matrix elements have been extracted for this reaction. Differential cross sections, spin density matrix elements, and the Lambda recoil polarization are compared with theoretical predictions using the BnGa partial wave analysis. The main result is the evidence for significant contributions from N(1895) 1/2(-) and N(2100) 1/2(+) to the reaction. Branching ratios for decays into K*Lambda for these resonances and further resonances are reported. (C) 2017 The Author. Published by Elsevier B.V.

KW - Baryon spectroscopy

KW - Meson photoproduction

KW - Polarization observables

KW - PARTIAL-WAVE ANALYSIS

KW - BARYON RESONANCES

KW - GAMMA-P

KW - AMPLITUDES

KW - DECAYS

U2 - 10.1016/j.physletb.2017.05.029

DO - 10.1016/j.physletb.2017.05.029

M3 - Article

SN - 0370-2693

VL - 771

SP - 142

EP - 150

JO - Physics Letters B

JF - Physics Letters B

ER -

Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states

Abstract

Keywords / Materials (for Non-textual outputs)

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