Photoproduction of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi mathvariant="normal">Λ</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi mathvariant="normal">Σ</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math>hyperons using linearly polarized photons

Paterson, C.; Ireland, D. G.; Livingston, K.; McKinnon, B.; Adhikari, K. P.; Adikaram, D.; Akbar, Z.; Amaryan, M. J.; Pereira, S. Anefalos; Badui, R.; Ball, J.; Baltzell, N. A.; Battaglieri, M.; Bedlinskiy, I.; Biselli, A. S.; Briscoe, W. J.; Brooks, W. K.; Burkert, Volker; Carman, D. S.; Celentano, A.; Chetry, T.; Ciullo, G.; Clark, L.; Colaneri, L.; Cole, P. L.; Compton, N.; Contalbrigo, M.; Cortes, O.; Credé, V.; D’Angelo, A.; Vita, R. De; Deur, A.; Djalali, C.; Dugger, M.; Dupré, R.; Egiyan, H.; Alaoui, A. El; Fassi, L. El; Fanchini, E.; Fedotov, G.; Filippi, A.; Fleming, J. A.; Gevorgyan, N.; Ghandilyan, Y.; Gilfoyle, G. P.; Giovanetti, K. L.; Girod, F. X.; Glazier, D. I.; Gleason, C.; Gothe, R.; Griffioen, K. A.; Guo, L.; Hafidi, K.; Harrison, N.; Hattawy, M.; Hicks, K.; Holtrop, M.; Hughes, S. M.; Ilieva, Y.; Ishkhanov, B. S.; Isupov, E. L.; Jenkins, D.; Jiang, Hao; Joo, K. S.; Keller, D.; Khachatryan, G.; Khandaker, M.; Kim, W.; Клейн, Ф.; Kubarovsky, V.; Kuleshov, S.; Lanza, L.; Lenisa, P.; Lu, H. Y.; MacGregor, I. J. D.; Markov, N.; Mattione, P.; Mayer, C.; McCracken, M. E.; Mokeev, V.; Movsisyan, A.; Munévar, E.; Camacho, C. Muñoz; Nadel-Turoński, P.; Net, L. A.; Ni, A.; Niccolai, S.; Niculescu, G.; Osipenko, M.; Ostrovidov, A. I.; Paremuzyan, R.; Park, K.; Pasyuk, E.; Peng, P.; Pisano, S.; Pogorelko, O.; Price, J. W.; Prok, Y.; Protopopescu, D.; Puckett, A. J. R.; Raue, B. A.; Ripani, M.; Ritchie, B. G.; Rizzo, A.; Rosner, G.; Roy, P.; Sabatié, F.; Salgado, C.; Schumacher, R. A.; Seder, E.; Sharabian, Y. G.; Skorodumina, Iu.; Smith, G. D.; Sober, D. I.; Sokhan, D.; Sparveris, N.; Strakovsky, I. I.; Strauch, S.; Sytnik, V.; Taiuti, M.; Torayev, B.; Tucker, Ross; Ungaro, M.; Voskanyan, H.; Voutier, E.; Walford, N. K.; Watts, D. P.; Wei, Xin; Zachariou, N.; Zana, L.; Zhang, J.; Zonta, I.

doi:10.1103/physrevc.93.065201

Cited by 56 publications

(50 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other charged meson photoproduction reactions from the proton, such as γ p → π + n [14,17] and γ p → K + Λ and K + Σ 0 [6,7,8,18,13], have positive asymmetries. It is interesting that only theūu quark pair production in the final state from the proton has negative asymmetries.…”

Section: Preliminary Resultsmentioning

confidence: 99%

Photoproduction of $\pi^{-}\Delta^{++}$ and $\pi^{+}\Delta^{0}$ on the proton for the comparison of $\bar{u}u$ and $\bar{d}d$ productions

Kohri¹

2018

Proceedings of XVII International Conference on Hadron Spectroscopy and Structure — PoS(Hadron2017)

View full text Add to dashboard Cite

We carry out photoproduction experiments using linearly polarized photon beams with energies of 1.5-3 GeV at SPring-8/LEPS. The photoproduction of various mesons and baryons is important to understand hadron production mechanisms. We took the data for the γ p → π − ∆ ++ and γ p → π + ∆ 0 reactions at the forward π angles of 0.7< cos θ c.m. π <1 with the same acceptance for π − and π + . Precise comparison between theūu anddd productions in the final state is possible, which is expected to give important information on how hadrons are produced. Preliminary results of photon beam asymmetries, which are sensitive to reaction mechanisms, are reported.

show abstract

Section: Preliminary Resultsmentioning

confidence: 99%

Photoproduction of $\pi^{-}\Delta^{++}$ and $\pi^{+}\Delta^{0}$ on the proton for the comparison of $\bar{u}u$ and $\bar{d}d$ productions

Kohri¹

2018

Proceedings of XVII International Conference on Hadron Spectroscopy and Structure — PoS(Hadron2017)

View full text Add to dashboard Cite

show abstract

“…This has led to a major experimental effort at Jefferson Lab, ELSA, GRAAL, and MAMI to chart differential cross sections and polarization observables for a variety of meson photoproduction channels. At JLab with CLAS, many different final states have been measured with high precision on the proton [21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37], many of them are now employed in single-and in multi-channel analyses [38]. Recently, the first measurements of open strangeness processes on neutron targets have been published [39,40].…”

Section: Establishing the N* Spectrummentioning

confidence: 99%

N $$^*$$ ∗ Experiments and Their Impact on Strong QCD Physics

Burkert

2018

Few-Body Syst

View full text Add to dashboard Cite

I give an overview on experimental studies of the spectrum and the structure of the excited states of the nucleon and what we can learn about their internal structure. One focus is on the efforts to obtain a more complete picture of the light-quark baryon excitation spectrum employing electromagnetic beams that will allow us to draw some conclusions on the symmetries underlying the spectrum. For the higher mass excitations, the full employment of coupled channel approaches is essential when searching for new excited states in the large amounts of data already accumulated in different channels involving a variety of polarization observables. The other focus is on the study of transition form factors and helicity amplitudes and their dependences on Q 2 , especially on some of the more prominent resonances, especially ∆(1232) 3 2 + , N (1440) 1 2 + , and negative parity states N (1535) 1 2 − , and N (1675) 5 2 − . These were obtained in pion and eta electroproduction experiments off proton targets and have already led to further insights in the active degrees-of-freedom as a function of the distance scale involved.

show abstract

“…A first attempt to determine photoproduction multipoles for γp → K + Λ was made in [170]. However, new precise data became available recently [171]. They allowed for a much more precise reconstruction of the multipoles.…”

Section: Can Photoproduction Multipoles Be Determined In Slices Of Fimentioning

confidence: 99%

Partial wave analysis

2017

View full text Add to dashboard Cite

Abstract. The project A.2 of the SFB/TR16 "Subnuclear Structure of Matter" aimed at a combined multichannel partial wave analysis of all or of most data on pion and photo-induced reactions for invariant masses from the Δ(1232) region to 2300 MeV. In this review the most important results are presented. It is shown that the data and their partial wave analysis have improved our understanding of the dynamics of excited light-quark baryons significantly.

show abstract

Photoproduction ofΛandΣ0hyperons using linearly polarized photons

Cited by 56 publications

References 26 publications

Photoproduction of $\pi^{-}\Delta^{++}$ and $\pi^{+}\Delta^{0}$ on the proton for the comparison of $\bar{u}u$ and $\bar{d}d$ productions

Photoproduction of $\pi^{-}\Delta^{++}$ and $\pi^{+}\Delta^{0}$ on the proton for the comparison of $\bar{u}u$ and $\bar{d}d$ productions

N $$^*$$ ∗ Experiments and Their Impact on Strong QCD Physics

Partial wave analysis

Contact Info

Product

Resources

About