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Pregled bibliografske jedinice broj: 1105890

Beam helicity asymmetries in K+ΛK+Λ electroproduction off the proton at low Q2

(A1 Collaboration) Achenbach, P.; Gayoso, C. Ayerbe; Boehm, R.; Borodina, O.; Bosnar, D.; Bozkurt, V.; Bydzovsky, P.; Debenjak, L.; Distler, M. O.; Esser, A. et al.
Beam helicity asymmetries in K+ΛK+Λ electroproduction off the proton at low Q2 // European physical journal A : hadrons and nuclei, 53 (2017), 10; 198, 10 doi:10.1140/epja/i2017-12395-1 (međunarodna recenzija, članak, znanstveni)

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Naslov
Beam helicity asymmetries in K+ΛK+Λ electroproduction off the proton at low Q2

Autori
Achenbach, P. ; Gayoso, C. Ayerbe ; Boehm, R. ; Borodina, O. ; Bosnar, D. ; Bozkurt, V. ; Bydzovsky, P. ; Debenjak, L. ; Distler, M. O. ; Esser, A. ; Friščić, I. ; Fujii, Y. ; Gogami, T. ; Rodriguez, M. Gomez ; Hashimoto, O. ; Hirose, S. ; Kanda, H. ; Kaneta, M. ; Kim, E. ; Margaryan, A. ; Merkel, H. ; Mueller, U. ; Nagao, S. ; Nakamura, S. N. ; Pochodzalla, J. ; Rappold, C. ; Reinhold, J. ; Saito, T. R. ; Lorente, A. Sanchez ; Majos, S. Sanchez ; Schlimme, B. S. ; Schoth, M. ; Schulz, F. ; Sfienti, C. ; Sirca, S. ; Skoupil, D. ; Tang, L. ; Thiel, M. ; Tsukada, K.

Kolaboracija
A1 Collaboration

Izvornik
European physical journal A : hadrons and nuclei (1434-6001) 53 (2017), 10; 198, 10

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Beam helicity asymmetries

Sažetak
Beam helicity asymmetries in the ep → eK+Λ reaction have been measured at unprecedentedly low four-momentum transfersQ2 =0 .05 (GeV/c)2. At the Mainz Microtron (MAMI), the experiment was performed with a longitudinally polarized beam and an out-of-plane detection of the scattered electron. This experiment probed the associated helicity-dependent structure function dσLT/dΩc.m. K , which is sensitive to the details of resonances of the proton. The results were compared to models for kaon electroproduction using effective Lagrangians. The MAMI data is not supporting the Kaon-Maid isobar model, which uses strong longitudinal couplings of the virtual photon to nucleon resonances and predicts a strong peaking of the structure function at forward angles and low Q2. The data is also in disagreement with a Regge-plusresonance model that predicts the incorrect sign of the structure function. The combination of the MAMI results with data taken at higher four-momentum transfers measured at Jefferson Lab indicates a smooth transition in Q2 without significant changes of the interference pattern in the electroproduction process.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Ivica Friščić (autor)

Avatar Url Damir Bosnar (autor)

Poveznice na cjeloviti tekst rada:

doi link.springer.com

Citiraj ovu publikaciju:

(A1 Collaboration) Achenbach, P.; Gayoso, C. Ayerbe; Boehm, R.; Borodina, O.; Bosnar, D.; Bozkurt, V.; Bydzovsky, P.; Debenjak, L.; Distler, M. O.; Esser, A. et al.
Beam helicity asymmetries in K+ΛK+Λ electroproduction off the proton at low Q2 // European physical journal A : hadrons and nuclei, 53 (2017), 10; 198, 10 doi:10.1140/epja/i2017-12395-1 (međunarodna recenzija, članak, znanstveni)
(A1 Collaboration) (A1 Collaboration) Achenbach, P., Gayoso, C., Boehm, R., Borodina, O., Bosnar, D., Bozkurt, V., Bydzovsky, P., Debenjak, L., Distler, M. & Esser, A. (2017) Beam helicity asymmetries in K+ΛK+Λ electroproduction off the proton at low Q2. European physical journal A : hadrons and nuclei, 53 (10), 198, 10 doi:10.1140/epja/i2017-12395-1.
@article{article, author = {Achenbach, P. and Gayoso, C. Ayerbe and Boehm, R. and Borodina, O. and Bosnar, D. and Bozkurt, V. and Bydzovsky, P. and Debenjak, L. and Distler, M. O. and Esser, A. and Fri\v{s}\v{c}i\'{c}, I. and Fujii, Y. and Gogami, T. and Rodriguez, M. Gomez and Hashimoto, O. and Hirose, S. and Kanda, H. and Kaneta, M. and Kim, E. and Margaryan, A. and Merkel, H. and Mueller, U. and Nagao, S. and Nakamura, S. N. and Pochodzalla, J. and Rappold, C. and Reinhold, J. and Saito, T. R. and Lorente, A. Sanchez and Majos, S. Sanchez and Schlimme, B. S. and Schoth, M. and Schulz, F. and Sfienti, C. and Sirca, S. and Skoupil, D. and Tang, L. and Thiel, M. and Tsukada, K.}, year = {2017}, pages = {10}, DOI = {10.1140/epja/i2017-12395-1}, chapter = {198}, keywords = {Beam helicity asymmetries}, journal = {European physical journal A : hadrons and nuclei}, doi = {10.1140/epja/i2017-12395-1}, volume = {53}, number = {10}, issn = {1434-6001}, title = {Beam helicity asymmetries in K+ΛK+Λ electroproduction off the proton at low Q2}, keyword = {Beam helicity asymmetries}, chapternumber = {198} }
@article{article, author = {Achenbach, P. and Gayoso, C. Ayerbe and Boehm, R. and Borodina, O. and Bosnar, D. and Bozkurt, V. and Bydzovsky, P. and Debenjak, L. and Distler, M. O. and Esser, A. and Fri\v{s}\v{c}i\'{c}, I. and Fujii, Y. and Gogami, T. and Rodriguez, M. Gomez and Hashimoto, O. and Hirose, S. and Kanda, H. and Kaneta, M. and Kim, E. and Margaryan, A. and Merkel, H. and Mueller, U. and Nagao, S. and Nakamura, S. N. and Pochodzalla, J. and Rappold, C. and Reinhold, J. and Saito, T. R. and Lorente, A. Sanchez and Majos, S. Sanchez and Schlimme, B. S. and Schoth, M. and Schulz, F. and Sfienti, C. and Sirca, S. and Skoupil, D. and Tang, L. and Thiel, M. and Tsukada, K.}, year = {2017}, pages = {10}, DOI = {10.1140/epja/i2017-12395-1}, chapter = {198}, keywords = {Beam helicity asymmetries}, journal = {European physical journal A : hadrons and nuclei}, doi = {10.1140/epja/i2017-12395-1}, volume = {53}, number = {10}, issn = {1434-6001}, title = {Beam helicity asymmetries in K+ΛK+Λ electroproduction off the proton at low Q2}, keyword = {Beam helicity asymmetries}, chapternumber = {198} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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