Photoproduction of $K^+K^-$ meson pairs on the proton

Lombardo, S. ; Battaglieri, M. ; Celentano, A. ; D’Angelo, A. ; Vita, R. De ; Filippi, A. ; Glazier, D. I. ; Hughes, S. M. ; Mathieu, V. ; Rizzo, A. ; Santopinto, E. ; Stankovic, I. ; Szczepaniak, A. P. ; Watts, D. ; Zana, L. ; Adhikari, S. ; Akbar, Z. ; Avakian, H. ; Ball, J. ; Baltzell, N. A. ; Barion, L. ; Bashkanov, M. ; Batourine, V. ; Bedlinskiy, I. ; Biselli, A. S. ; Boiarinov, S. ; Briscoe, W. J. ; Burkert, V. D. ; Cao, F. ; Carman, D. S. ; Chatagnon, P. ; Chetry, T. ; Ciullo, G. ; Clark, L. ; Clary, B. A. ; Cole, P. L. ; Contalbrigo, M. ; Crede, V. ; Dashyan, N. ; Sanctis, E. De ; Defurne, M. ; Deur, A. ; Diehl, S. ; Djalali, C. ; Dugger, M. ; Dupre, R. ; Egiyan, H. ; Ehrhart, M. ; Alaoui, A. El ; Fassi, L. El ; Eugenio, P. ; Fedotov, G. ; Gavalian, G. ; Ghandilyan, Y. ; Gilfoyle, G. P. ; Giovanetti, K. L. ; Girod, F. X. ; Golovatch, E. ; Gothe, R. W. ; Griffioen, K. A. ; Guidal, M. ; Guo, L. ; Hafidi, K. ; Hakobyan, H. ; Harrison, N. ; Hattawy, M. ; Heddle, D. ; Hicks, K. ; Holtrop, M. ; Ilieva, Y. ; Ireland, D. G. ; Ishkhanov, B. S. ; Isupov, E. L. ; Jenkins, D. ; Jo, H. S. ; Johnston, S. ; Joo, K. ; Kabir, M. L. ; Keller, D. ; Khachatryan, G. ; Khachatryan, M. ; Khandaker, M. ; Kim, A. ; Kim, W. ; Klein, A. ; Klein, F. J. ; Kubarovsky, V. ; Lanza, L. ; Lenisa, P. ; Livingston, K. ; MacGregor, I. J. D. ; Marchand, D. ; Markov, N. ; McKinnon, B. ; Mestayer, M. D. ; Meyer, C. A. ; Meziani, Z. E. ; Mirazita, M. ; Mokeev, V. ; Montgomery, R. A. ; Camacho, C. Munoz ; Nadel-Turonski, P. ; Niccolai, S. ; Niculescu, G. ; Osipenko, M. ; Ostrovidov, A. I. ; Paolone, M. ; Paremuzyan, R. ; Park, K. ; Pasyuk, E. ; Pogorelko, O. ; Price, J. W. ; Prok, Y. ; Protopopescu, D. ; Ripani, M. ; Riser, D. ; Ritchie, B. G. ; Rosner, G. ; Sabatie, F. ; Salgado, C. ; Schumacher, R. A. ; Sharabian, Y. G. ; Skorodumina, Iu. ; Smith, G. D. ; Sober, D. I. ; Sokhan, D. ; Sparveris, N. ; Strakovsky, I. I. ; Strauch, S. ; Taiuti, M. ; Tan, J. A. ; Ungaro, M. ; Voskanyan, H. ; Voutier, E. ; Wang, R. ; Wei, X. ; Wood, M. H. ; Zachariou, N. ; Zhang, J. ; Zhao, Z. W.

The exclusive reaction $\gamma p \to p K^+ K^-$ was studied in the photon energy range 3.0−3.8 GeV and momentum transfer range $0.6<−t<1.3$ GeV$^2$. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. In this kinematic range the integrated luminosity was approximately 20 pb$^{−1}$. The reaction was isolated by detecting the K$^+$ and the proton in CLAS, and reconstructing the K$^−$ via the missing-mass technique. Moments of the di-kaon decay angular distributions were extracted from the experimental data. Besides the dominant contribution of the ϕ meson in the P-wave, evidence for S−P interference was found. The differential production cross sections dσ/dt for individual waves in the mass range of the ϕ resonance were extracted and compared to predictions of a Regge-inspired model. This is the first time the t-dependent cross section of the S-wave contribution to the elastic $K^+K^-$ photoproduction has been measured.


Publication Date:
Sep 27 2018
Date Submitted:
Jul 01 2019
Pagination:
52009
ISSN:
2470-0010
Citation:
Physical Review D
D98
5
External Resources:




 Record created 2019-07-01, last modified 2019-07-11


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