Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron

The CLAS Collaboration; H Egiyan; M Ehrhart; A El Alaoui; P Eugenio; R. Fersch; A. Filippi; G. Gavalian; N. Gevorgyan; Y. Ghandilyan; G.P. Gilfoyle; F.X. Girod; W. Gohn; E. Golovatch; R.W. Gothe; K.A. Griffoen; M. Guidal; K. Hafidi; H. Hakobyan; M. Hattawy; D.  Heddle; K. Hicks; D. Ho; M. Holtrop; Y. Ilieva; D.G. Ireland; B.S. Ishkanov; E.L. Isupov; D. Jenkins; H.S. Jo; K. Joo; S.J. Joosten; D. Keller; M. Khachatryan; A. Khanal; M. Khandaker; C.W. Kim; W. Kim; V. Kubarovsky; L. Lanza; M. Leali; P. Lenisa; K. Livingston; I.J.D. MacGregor; D. Marchand; N. Markov; L. Marsicano; V. Mascagna; M. Mayer; B. McKinnon; Z.E. Meziani; T. Mineeva; V. Mokeev; E. Munevar; C. Munoz Camacho; P. Nadal Turonski; T.R. O'Connell; M. Osipenko; A.I. Ostrovidov; M. Paolone; L.L. Pappalardo; K. Park; E. Pasyuk; P. Peng; W. Phelps; O. Pogorelko; J. Poudel; J.W. Price; Y. Prok; A.J.R. Puckett; B.R. Raue; M. Ripani; A. Rizzo; G. Rosner; C. Salgado; A. Schmidt; R.A. Schumacher; U. Shrestha; D. Sokhan; O. Soto; N. Sparveris; I.I. Strakovsky; S. Strauch; J.A. Tan; N. Tyler; M. Ungaro; L. Venturelli; H. Voskanyan; E. Voutier; N.K. Walford; C.S. Whisnant; M.H. Wood; J. Zhang; Z.W. Zhao

doi:10.1016/j.physletb.2020.135662

Beam–target helicity asymmetry E in K⁺Σ⁻ photoproduction on the neutron

The CLAS Collaboration, H Egiyan, M Ehrhart, A El Alaoui, P Eugenio, R. Fersch, A. Filippi, G. Gavalian, N. Gevorgyan, Y. Ghandilyan, G.P. Gilfoyle, F.X. Girod, W. Gohn, E. Golovatch, R.W. Gothe, K.A. Griffoen, M. Guidal, K. Hafidi, H. Hakobyan, M. HattawyD. Heddle, K. Hicks , D. Ho, M. Holtrop, Y. Ilieva, D.G. Ireland , B.S. Ishkanov, E.L. Isupov, D. Jenkins, H.S. Jo, K. Joo, S.J. Joosten, D. Keller, M. Khachatryan, A. Khanal, M. Khandaker , C.W. Kim, W. Kim, V. Kubarovsky, L. Lanza, M. Leali, P. Lenisa, K. Livingston, I.J.D. MacGregor , D. Marchand, N. Markov, L. Marsicano, V. Mascagna, M. Mayer, B. McKinnon, Z.E. Meziani, T. Mineeva, V. Mokeev, E. Munevar, C. Munoz Camacho, P. Nadal Turonski, T.R. O'Connell, M. Osipenko, A.I. Ostrovidov, M. Paolone, L.L. Pappalardo, K. Park , E. Pasyuk, P. Peng, W. Phelps, O. Pogorelko, J. Poudel, J.W. Price, Y. Prok, A.J.R. Puckett, B.R. Raue, M. Ripani, A. Rizzo, G. Rosner, C. Salgado, A. Schmidt, R.A. Schumacher, U. Shrestha, D. Sokhan, O. Soto, N. Sparveris, I.I. Strakovsky, S. Strauch, J.A. Tan, N. Tyler, M. Ungaro, L. Venturelli, H. Voskanyan, E. Voutier, N.K. Walford, C.S. Whisnant, M.H. Wood, J. Zhang, Z.W. Zhao

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

Abstract

We report a measurement of a beam–target double-polarisation observable (E) for the γ→n→(p)→K⁺Σ⁻(p) reaction. The data were obtained impinging the circularly-polarised energy-tagged photon beam of Hall B at Jefferson Lab on a longitudinally-polarised frozen-spin hydrogen deuteride (HD) nuclear target. The E observable for an effective neutron target was determined for centre-of-mass energies 1.70≤W≤2.30 GeV, with reaction products detected over a wide angular acceptance by the CLAS spectrometer. These new double-polarisation data give unique constraints on the strange decays of excited neutron states. Inclusion of the new data within the Bonn-Gatchina theoretical model results in significant changes for the extracted photocouplings of a number of established nucleon resonances. Possible improvements in the PWA description of the experimental data with additional “missing” resonance states, including the N(2120)^3/2⁻ resonance, are also quantified.

Original language	English
Article number	135662
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	808
Early online date	30 Jul 2020
DOIs	https://doi.org/10.1016/j.physletb.2020.135662
Publication status	Published - 10 Sept 2020

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10.1016/j.physletb.2020.135662

1-s2.0-S0370269320304652-main
©2020 Published by Elsevier B.V.
Final published version, 846 KBLicence: CC BY

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The CLAS Collaboration, Egiyan, H., Ehrhart, M., El Alaoui, A., Eugenio, P., Fersch, R., Filippi, A., Gavalian, G., Gevorgyan, N., Ghandilyan, Y., Gilfoyle, G. P., Girod, F. X., Gohn, W., Golovatch, E., Gothe, R. W., Griffoen, K. A., Guidal, M., Hafidi, K., Hakobyan, H., ... Zhao, Z. W. (2020). Beam–target helicity asymmetry E in K⁺Σ⁻ photoproduction on the neutron. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 808, Article 135662. https://doi.org/10.1016/j.physletb.2020.135662

@article{a0adbc1f1e5648299f26b590165e46f4,

title = "Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron",

abstract = "We report a measurement of a beam–target double-polarisation observable (E) for the γ→n→(p)→K+Σ−(p) reaction. The data were obtained impinging the circularly-polarised energy-tagged photon beam of Hall B at Jefferson Lab on a longitudinally-polarised frozen-spin hydrogen deuteride (HD) nuclear target. The E observable for an effective neutron target was determined for centre-of-mass energies 1.70≤W≤2.30 GeV, with reaction products detected over a wide angular acceptance by the CLAS spectrometer. These new double-polarisation data give unique constraints on the strange decays of excited neutron states. Inclusion of the new data within the Bonn-Gatchina theoretical model results in significant changes for the extracted photocouplings of a number of established nucleon resonances. Possible improvements in the PWA description of the experimental data with additional “missing” resonance states, including the N(2120)3/2− resonance, are also quantified.",

author = "{The CLAS Collaboration} and N. Zachariou and Watts, {D. P.} and J. Fleming and Sarantsev, {A. V.} and Nikonov, {V. A.} and A. D'Angelo and M. Bashkanov and C. Hanretty and T. Kageya and Klein, {F. J.} and M. Lowry and H. Lu and A. Sandorfi and X. Wei and I. Zonta and Adhikari, {K. P.} and S. Adhikari and Amaryan, {M. J.} and G. Angelini and G. Asryan and H. Atac and L. Barion and C. Bass and M. Battaglieri and I. Bedlinskiy and F. Benmokhtar and A. Bianconi and Biselli, {A. S.} and F. Boss{\`u} and S. Boiarinov and Briscoe, {W. J.} and Brooks, {W. K.} and D. Bulumulla and V. Burkert and Carman, {D. S.} and Carvajal, {J. C.} and A. Celentano and G. Charles and P. Chatagnon and T. Chetry and G. Ciullo and Cole, {P. L.} and M. Contalbrigo and N. Dashyan and {De Vita}, R. and A. Deur and S. Diehl and C. Djalali and R. Dupre and H Egiyan and M Ehrhart and {El Alaoui}, A and P Eugenio and S. Fegan and R. Fersch and A. Filippi and G. Gavalian and N. Gevorgyan and Y. Ghandilyan and G.P. Gilfoyle and F.X. Girod and W. Gohn and E. Golovatch and R.W. Gothe and K.A. Griffoen and M. Guidal and K. Hafidi and H. Hakobyan and M. Hattawy and D. Heddle and K. Hicks and D. Ho and M. Holtrop and Y. Ilieva and D.G. Ireland and B.S. Ishkanov and E.L. Isupov and D. Jenkins and H.S. Jo and K. Joo and S.J. Joosten and D. Keller and M. Khachatryan and A. Khanal and M. Khandaker and C.W. Kim and W. Kim and V. Kubarovsky and L. Lanza and M. Leali and P. Lenisa and K. Livingston and I.J.D. MacGregor and D. Marchand and N. Markov and L. Marsicano and V. Mascagna and M. Mayer and B. McKinnon and Z.E. Meziani and T. Mineeva and V. Mokeev and E. Munevar and {Munoz Camacho}, C. and {Nadal Turonski}, P. and T.R. O'Connell and M. Osipenko and A.I. Ostrovidov and M. Paolone and L.L. Pappalardo and K. Park and E. Pasyuk and P. Peng and W. Phelps and O. Pogorelko and J. Poudel and J.W. Price and Y. Prok and A.J.R. Puckett and B.R. Raue and M. Ripani and A. Rizzo and G. Rosner and C. Salgado and A. Schmidt and R.A. Schumacher and U. Shrestha and D. Sokhan and O. Soto and N. Sparveris and I.I. Strakovsky and S. Strauch and J.A. Tan and N. Tyler and M. Ungaro and L. Venturelli and H. Voskanyan and E. Voutier and N.K. Walford and C.S. Whisnant and M.H. Wood and J. Zhang and Z.W. Zhao",

note = "{\textcopyright}2020 Published by Elsevier B.V.",

year = "2020",

month = sep,

day = "10",

doi = "10.1016/j.physletb.2020.135662",

language = "English",

volume = "808",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

}

The CLAS Collaboration, Egiyan, H, Ehrhart, M, El Alaoui, A, Eugenio, P, Fersch, R, Filippi, A, Gavalian, G, Gevorgyan, N, Ghandilyan, Y, Gilfoyle, GP, Girod, FX, Gohn, W, Golovatch, E, Gothe, RW, Griffoen, KA, Guidal, M, Hafidi, K, Hakobyan, H, Hattawy, M, Heddle, D, Hicks , K, Ho, D, Holtrop, M, Ilieva, Y, Ireland , DG, Ishkanov, BS, Isupov, EL, Jenkins, D, Jo, HS, Joo, K, Joosten, SJ, Keller, D, Khachatryan, M, Khanal, A, Khandaker , M, Kim, CW, Kim, W, Kubarovsky, V, Lanza, L, Leali, M, Lenisa, P, Livingston, K, MacGregor , IJD, Marchand, D, Markov, N, Marsicano, L, Mascagna, V, Mayer, M, McKinnon, B, Meziani, ZE, Mineeva, T, Mokeev, V, Munevar, E, Munoz Camacho, C, Nadal Turonski, P, O'Connell, TR, Osipenko, M, Ostrovidov, AI, Paolone, M, Pappalardo, LL, Park , K, Pasyuk, E, Peng, P, Phelps, W, Pogorelko, O, Poudel, J, Price, JW, Prok, Y, Puckett, AJR, Raue, BR, Ripani, M, Rizzo, A, Rosner, G, Salgado, C, Schmidt, A, Schumacher, RA, Shrestha, U, Sokhan, D, Soto, O, Sparveris, N, Strakovsky, II, Strauch, S, Tan, JA, Tyler, N, Ungaro, M, Venturelli, L, Voskanyan, H, Voutier, E, Walford, NK, Whisnant, CS, Wood, MH, Zhang, J & Zhao, ZW 2020, 'Beam–target helicity asymmetry E in K⁺Σ⁻ photoproduction on the neutron', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 808, 135662. https://doi.org/10.1016/j.physletb.2020.135662

TY - JOUR

T1 - Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron

AU - The CLAS Collaboration

AU - Zachariou, N.

AU - Watts, D. P.

AU - Fleming, J.

AU - Sarantsev, A. V.

AU - Nikonov, V. A.

AU - D'Angelo, A.

AU - Bashkanov, M.

AU - Hanretty, C.

AU - Kageya, T.

AU - Klein, F. J.

AU - Lowry, M.

AU - Lu, H.

AU - Sandorfi, A.

AU - Wei, X.

AU - Zonta, I.

AU - Adhikari, K. P.

AU - Adhikari, S.

AU - Amaryan, M. J.

AU - Angelini, G.

AU - Asryan, G.

AU - Atac, H.

AU - Barion, L.

AU - Bass, C.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Benmokhtar, F.

AU - Bianconi, A.

AU - Biselli, A. S.

AU - Bossù, F.

AU - Boiarinov, S.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Bulumulla, D.

AU - Burkert, V.

AU - Carman, D. S.

AU - Carvajal, J. C.

AU - Celentano, A.

AU - Charles, G.

AU - Chatagnon, P.

AU - Chetry, T.

AU - Ciullo, G.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Dashyan, N.

AU - De Vita, R.

AU - Deur, A.

AU - Diehl, S.

AU - Djalali, C.

AU - Dupre, R.

AU - Egiyan, H

AU - Ehrhart, M

AU - El Alaoui, A

AU - Eugenio, P

AU - Fegan, S.

AU - Fersch, R.

AU - Filippi, A.

AU - Gavalian, G.

AU - Gevorgyan, N.

AU - Ghandilyan, Y.

AU - Gilfoyle, G.P.

AU - Girod, F.X.

AU - Gohn, W.

AU - Golovatch, E.

AU - Gothe, R.W.

AU - Griffoen, K.A.

AU - Guidal, M.

AU - Hafidi, K.

AU - Hakobyan, H.

AU - Hattawy, M.

AU - Heddle, D.

AU - Hicks , K.

AU - Ho, D.

AU - Holtrop, M.

AU - Ilieva, Y.

AU - Ireland , D.G.

AU - Ishkanov, B.S.

AU - Isupov, E.L.

AU - Jenkins, D.

AU - Jo, H.S.

AU - Joo, K.

AU - Joosten, S.J.

AU - Keller, D.

AU - Khachatryan, M.

AU - Khanal, A.

AU - Khandaker , M.

AU - Kim, C.W.

AU - Kim, W.

AU - Kubarovsky, V.

AU - Lanza, L.

AU - Leali, M.

AU - Lenisa, P.

AU - Livingston, K.

AU - MacGregor , I.J.D.

AU - Marchand, D.

AU - Markov, N.

AU - Marsicano, L.

AU - Mascagna, V.

AU - Mayer, M.

AU - McKinnon, B.

AU - Meziani, Z.E.

AU - Mineeva, T.

AU - Mokeev, V.

AU - Munevar, E.

AU - Munoz Camacho, C.

AU - Nadal Turonski, P.

AU - O'Connell, T.R.

AU - Osipenko, M.

AU - Ostrovidov, A.I.

AU - Paolone, M.

AU - Pappalardo, L.L.

AU - Park , K.

AU - Pasyuk, E.

AU - Peng, P.

AU - Phelps, W.

AU - Pogorelko, O.

AU - Poudel, J.

AU - Price, J.W.

AU - Prok, Y.

AU - Puckett, A.J.R.

AU - Raue, B.R.

AU - Ripani, M.

AU - Rizzo, A.

AU - Rosner, G.

AU - Salgado, C.

AU - Schmidt, A.

AU - Schumacher, R.A.

AU - Shrestha, U.

AU - Sokhan, D.

AU - Soto, O.

AU - Sparveris, N.

AU - Strakovsky, I.I.

AU - Strauch, S.

AU - Tan, J.A.

AU - Tyler, N.

AU - Ungaro, M.

AU - Venturelli, L.

AU - Voskanyan, H.

AU - Voutier, E.

AU - Walford, N.K.

AU - Whisnant, C.S.

AU - Wood, M.H.

AU - Zhang, J.

AU - Zhao, Z.W.

PY - 2020/9/10

Y1 - 2020/9/10

N2 - We report a measurement of a beam–target double-polarisation observable (E) for the γ→n→(p)→K+Σ−(p) reaction. The data were obtained impinging the circularly-polarised energy-tagged photon beam of Hall B at Jefferson Lab on a longitudinally-polarised frozen-spin hydrogen deuteride (HD) nuclear target. The E observable for an effective neutron target was determined for centre-of-mass energies 1.70≤W≤2.30 GeV, with reaction products detected over a wide angular acceptance by the CLAS spectrometer. These new double-polarisation data give unique constraints on the strange decays of excited neutron states. Inclusion of the new data within the Bonn-Gatchina theoretical model results in significant changes for the extracted photocouplings of a number of established nucleon resonances. Possible improvements in the PWA description of the experimental data with additional “missing” resonance states, including the N(2120)3/2− resonance, are also quantified.

AB - We report a measurement of a beam–target double-polarisation observable (E) for the γ→n→(p)→K+Σ−(p) reaction. The data were obtained impinging the circularly-polarised energy-tagged photon beam of Hall B at Jefferson Lab on a longitudinally-polarised frozen-spin hydrogen deuteride (HD) nuclear target. The E observable for an effective neutron target was determined for centre-of-mass energies 1.70≤W≤2.30 GeV, with reaction products detected over a wide angular acceptance by the CLAS spectrometer. These new double-polarisation data give unique constraints on the strange decays of excited neutron states. Inclusion of the new data within the Bonn-Gatchina theoretical model results in significant changes for the extracted photocouplings of a number of established nucleon resonances. Possible improvements in the PWA description of the experimental data with additional “missing” resonance states, including the N(2120)3/2− resonance, are also quantified.

UR - http://www.scopus.com/inward/record.url?scp=85088992099&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2020.135662

DO - 10.1016/j.physletb.2020.135662

M3 - Article

AN - SCOPUS:85088992099

SN - 0370-2693

VL - 808

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 135662

ER -

Beam–target helicity asymmetry E in K⁺Σ⁻ photoproduction on the neutron

Abstract

Bibliographical note

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Nick Zachariou

Nuclear Physics Consolidated Grant 2021-2024

Shining a light on strangeness

Cite this

Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron

Abstract

Bibliographical note

Access to Document

Other files and links

Profiles

Nick Zachariou

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Nuclear Physics Consolidated Grant 2021-2024

Shining a light on strangeness

Cite this

Beam–target helicity asymmetry E in K⁺Σ⁻ photoproduction on the neutron