Measurement of the Transverse Target and Beam-Target Asymmetries in eta Meson Photoproduction at MAMI

A2 Collaboration MAMI; C. S. Akondi; J. R. M. Annand; H. J. Arends; R. Beck; A. Bernstein; N. Borisov; A. Braghieri; W. J. Briscoe; S. Cherepnya; C. Collicott; S. Costanza; E. J. Downie; M. Dieterle; A. Fix; L. V. Fil'kov; S. Garni; D. I. Glazier; W. Gradl; G. Gurevich; P. Hall Barrientos; D. Hamilton; D. Hornidge; D. Howdle; G. M. Huber; V. L. Kashevarov; I. Keshelashvili; R. Kondratiev; M. Korolija; B. Krusche; A. Lazarev; V. Lisin; K. Livingston; I. J. D. MacGregor; J. Mancel; D. M. Manley; P. Martel; E. F. McNicoll; W. Meyer; D. Middleton; R. Miskimen; A. Mushkarenkov; B. M. K. Nefkens; A. Neganov; A. Nikolaev; M. Oberle; M. Ostrick; H. Ortega; P. Ott; P. B. Otte; D. P. Watts

doi:10.1103/PhysRevLett.113.102001

Measurement of the Transverse Target and Beam-Target Asymmetries in eta Meson Photoproduction at MAMI

A2 Collaboration MAMI, C. S. Akondi^*, J. R. M. Annand, H. J. Arends, R. Beck, A. Bernstein, N. Borisov, A. Braghieri, W. J. Briscoe, S. Cherepnya, C. Collicott, S. Costanza, E. J. Downie, M. Dieterle, A. Fix, L. V. Fil'kov, S. Garni, D. I. Glazier, W. Gradl, G. GurevichP. Hall Barrientos, D. Hamilton, D. Hornidge, D. Howdle, G. M. Huber, V. L. Kashevarov, I. Keshelashvili, R. Kondratiev, M. Korolija, B. Krusche, A. Lazarev, V. Lisin, K. Livingston, I. J. D. MacGregor, J. Mancel, D. M. Manley, P. Martel, E. F. McNicoll, W. Meyer, D. Middleton, R. Miskimen, A. Mushkarenkov, B. M. K. Nefkens, A. Neganov, A. Nikolaev, M. Oberle, M. Ostrick, H. Ortega, P. Ott, P. B. Otte, D. P. Watts

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract / Description of output

We present new data for the transverse target asymmetry T and the very first data for the beam-target asymmetry F in the (gamma) over right arrow (p) over right arrow -> eta p reaction up to a center-of-mass energy of W = 1.9 GeV. The data were obtained with the Crystal-Ball/ TAPS detector setup at the Glasgow tagged photon facility of the Mainz Microtron MAMI. All existing model predictions fail to reproduce the new data indicating a significant impact on our understanding of the underlying dynamics of eta meson photoproduction. The peculiar nodal structure observed in existing T data close to threshold is not confirmed.

Original language	English
Article number	102001
Number of pages	5
Journal	Physical Review Letters
Volume	113
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.113.102001
Publication status	Published - 4 Sept 2014

Keywords / Materials (for Non-textual outputs)

TAGGED PHOTON SPECTROMETER
RESONANCES
MICROTRON
NUCLEON
PROTON
TAPS

Access to Document

10.1103/PhysRevLett.113.102001

Cite this

A2 Collaboration MAMI, Akondi, C. S., Annand, J. R. M., Arends, H. J., Beck, R., Bernstein, A., Borisov, N., Braghieri, A., Briscoe, W. J., Cherepnya, S., Collicott, C., Costanza, S., Downie, E. J., Dieterle, M., Fix, A., Fil'kov, L. V., Garni, S., Glazier, D. I., Gradl, W., ... Watts, D. P. (2014). Measurement of the Transverse Target and Beam-Target Asymmetries in eta Meson Photoproduction at MAMI. Physical Review Letters, 113(10), Article 102001. https://doi.org/10.1103/PhysRevLett.113.102001

@article{aaac72d724714108b0a7b87417b5b566,

title = "Measurement of the Transverse Target and Beam-Target Asymmetries in eta Meson Photoproduction at MAMI",

abstract = "We present new data for the transverse target asymmetry T and the very first data for the beam-target asymmetry F in the (gamma) over right arrow (p) over right arrow -> eta p reaction up to a center-of-mass energy of W = 1.9 GeV. The data were obtained with the Crystal-Ball/ TAPS detector setup at the Glasgow tagged photon facility of the Mainz Microtron MAMI. All existing model predictions fail to reproduce the new data indicating a significant impact on our understanding of the underlying dynamics of eta meson photoproduction. The peculiar nodal structure observed in existing T data close to threshold is not confirmed.",

keywords = "TAGGED PHOTON SPECTROMETER, RESONANCES, MICROTRON, NUCLEON, PROTON, TAPS",

author = "{A2 Collaboration MAMI} and Akondi, {C. S.} and Annand, {J. R. M.} and Arends, {H. J.} and R. Beck and A. Bernstein and N. Borisov and A. Braghieri and Briscoe, {W. J.} and S. Cherepnya and C. Collicott and S. Costanza and Downie, {E. J.} and M. Dieterle and A. Fix and Fil'kov, {L. V.} and S. Garni and Glazier, {D. I.} and W. Gradl and G. Gurevich and Barrientos, {P. Hall} and D. Hamilton and D. Hornidge and D. Howdle and Huber, {G. M.} and Kashevarov, {V. L.} and I. Keshelashvili and R. Kondratiev and M. Korolija and B. Krusche and A. Lazarev and V. Lisin and K. Livingston and MacGregor, {I. J. D.} and J. Mancel and Manley, {D. M.} and P. Martel and McNicoll, {E. F.} and W. Meyer and D. Middleton and R. Miskimen and A. Mushkarenkov and Nefkens, {B. M. K.} and A. Neganov and A. Nikolaev and M. Oberle and M. Ostrick and H. Ortega and P. Ott and Otte, {P. B.} and Watts, {D. P.}",

year = "2014",

month = sep,

day = "4",

doi = "10.1103/PhysRevLett.113.102001",

language = "English",

volume = "113",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

}

A2 Collaboration MAMI, Akondi, CS, Annand, JRM, Arends, HJ, Beck, R, Bernstein, A, Borisov, N, Braghieri, A, Briscoe, WJ, Cherepnya, S, Collicott, C, Costanza, S, Downie, EJ, Dieterle, M, Fix, A, Fil'kov, LV, Garni, S, Glazier, DI, Gradl, W, Gurevich, G, Barrientos, PH, Hamilton, D, Hornidge, D, Howdle, D, Huber, GM, Kashevarov, VL, Keshelashvili, I, Kondratiev, R, Korolija, M, Krusche, B, Lazarev, A, Lisin, V, Livingston, K, MacGregor, IJD, Mancel, J, Manley, DM, Martel, P, McNicoll, EF, Meyer, W, Middleton, D, Miskimen, R, Mushkarenkov, A, Nefkens, BMK, Neganov, A, Nikolaev, A, Oberle, M, Ostrick, M, Ortega, H, Ott, P, Otte, PB & Watts, DP 2014, 'Measurement of the Transverse Target and Beam-Target Asymmetries in eta Meson Photoproduction at MAMI', Physical Review Letters, vol. 113, no. 10, 102001. https://doi.org/10.1103/PhysRevLett.113.102001

TY - JOUR

T1 - Measurement of the Transverse Target and Beam-Target Asymmetries in eta Meson Photoproduction at MAMI

AU - A2 Collaboration MAMI

AU - Akondi, C. S.

AU - Annand, J. R. M.

AU - Arends, H. J.

AU - Beck, R.

AU - Bernstein, A.

AU - Borisov, N.

AU - Braghieri, A.

AU - Briscoe, W. J.

AU - Cherepnya, S.

AU - Collicott, C.

AU - Costanza, S.

AU - Downie, E. J.

AU - Dieterle, M.

AU - Fix, A.

AU - Fil'kov, L. V.

AU - Garni, S.

AU - Glazier, D. I.

AU - Gradl, W.

AU - Gurevich, G.

AU - Barrientos, P. Hall

AU - Hamilton, D.

AU - Hornidge, D.

AU - Howdle, D.

AU - Huber, G. M.

AU - Kashevarov, V. L.

AU - Keshelashvili, I.

AU - Kondratiev, R.

AU - Korolija, M.

AU - Krusche, B.

AU - Lazarev, A.

AU - Lisin, V.

AU - Livingston, K.

AU - MacGregor, I. J. D.

AU - Mancel, J.

AU - Manley, D. M.

AU - Martel, P.

AU - McNicoll, E. F.

AU - Meyer, W.

AU - Middleton, D.

AU - Miskimen, R.

AU - Mushkarenkov, A.

AU - Nefkens, B. M. K.

AU - Neganov, A.

AU - Nikolaev, A.

AU - Oberle, M.

AU - Ostrick, M.

AU - Ortega, H.

AU - Ott, P.

AU - Otte, P. B.

AU - Watts, D. P.

PY - 2014/9/4

Y1 - 2014/9/4

N2 - We present new data for the transverse target asymmetry T and the very first data for the beam-target asymmetry F in the (gamma) over right arrow (p) over right arrow -> eta p reaction up to a center-of-mass energy of W = 1.9 GeV. The data were obtained with the Crystal-Ball/ TAPS detector setup at the Glasgow tagged photon facility of the Mainz Microtron MAMI. All existing model predictions fail to reproduce the new data indicating a significant impact on our understanding of the underlying dynamics of eta meson photoproduction. The peculiar nodal structure observed in existing T data close to threshold is not confirmed.

AB - We present new data for the transverse target asymmetry T and the very first data for the beam-target asymmetry F in the (gamma) over right arrow (p) over right arrow -> eta p reaction up to a center-of-mass energy of W = 1.9 GeV. The data were obtained with the Crystal-Ball/ TAPS detector setup at the Glasgow tagged photon facility of the Mainz Microtron MAMI. All existing model predictions fail to reproduce the new data indicating a significant impact on our understanding of the underlying dynamics of eta meson photoproduction. The peculiar nodal structure observed in existing T data close to threshold is not confirmed.

KW - TAGGED PHOTON SPECTROMETER

KW - RESONANCES

KW - MICROTRON

KW - NUCLEON

KW - PROTON

KW - TAPS

UR - http://www.scopus.com/inward/record.url?scp=84911480005&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.113.102001

DO - 10.1103/PhysRevLett.113.102001

M3 - Article

SN - 0031-9007

VL - 113

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 102001

ER -

Measurement of the Transverse Target and Beam-Target Asymmetries in eta Meson Photoproduction at MAMI

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

Access to Document

Other files and links

Fingerprint

Cite this