Exclusive photoproduction of π0 up to large values of Mandelstam variables s,t, and u with CLAS

Kunkel, M. C.; Amaryan, M. J.; Strakovsky, I. I.; Ritman, J.; Goldstein, G. R.; Adhikari, K. P.; Adhikari, S.; Avakian, H.; Ball, J.; Balossino, I.; Barion, L.; Battaglieri, M.; Batourine, V.; Bedlinskiy, I.; Biselli, A. S.; Boiarinov, S.; Briscoe, W. J.; Brooks, W. K.; Bültmann, S.; Burkert, V. D.; Cao, F.; Carman, D. S.; Celentano, A.; Charles, G.; Chetry, T.; Ciullo, G.; Clark, L.; Cole, P. L.; Contalbrigo, M.; Cortes, O.; Crede, V.; D'Angelo, A.; Dashyan, N.; De Vita, R.; De Sanctis, E.; Degtyarenko, P. V.; Defurne, M.; Deur, A.; Djalali, C.; Dugger, M.; Dupre, R.; Egiyan, H.; El Alaoui, A.; El Fassi, L.; Elouadrhiri, L.; Eugenio, P.; Fedotov, G.; Fersch, R.; Filippi, A.; Fradi, A.; Gavalian, G.; Ghandilyan, Y.; Ghosh, S.; Gilfoyle, G. P.; Giovanetti, K. L.; Girod, F. X.; Glazier, D. I.; Gohn, W.; Golovatch, E.; Gothe, R. W.; Griffioen, K. A.; Guo, L.; Guidal, M.; Hafidi, K.; Hakobyan, H.; Harrison, N.; Hattawy, M.; Hicks, K.; Holtrop, M.; Hyde, C. E.; Ireland, D. G.; Ishkhanov, B. S.; Isupov, E. L.; Jenkins, D.; Joo, K.; Kabir, M. L.; Keller, D.; Khachatryan, G.; Khachatryan, M.; Khandaker, M.; Kim, A.; Kim, W.; Klein, A.; Klein, F.; Kubarovsky, V.; Kuhn, S. E.; Laget, J. M.; Lanza, L.; Lenisa, P.; Lersch, D.; Livingston, K.; MacGregor, I. J.  D.; Markov, N.; Mbianda Njencheu, G.; McKinnon, B.; Mineeva, T.; Mokeev, V.; Montgomery, R. A.; Movsisyan, A.; Munoz Camacho, C.; Nadel-Turonski, P.; Niccolai, S.; Niculescu, G.; Osipenko, M.; Ostrovidov, A. I.; Paolone, M.; Park, K.; Pasyuk, E.; Payette, D.; Phelps, W.; Pogorelko, O.; Poudel, J.; Price, J. W.; Procureur, S.; Prok, Y.; Protopopescu, D.; Ripani, M.; Ritchie, B. G.; Rizzo, A.; Rosner, G.; Roy, A.; Sabatié, F.; Salgado, C.; Schadmand, S.; Schumacher, R. A.; Sharabian, Y. G.; Skorodumina, Iu.; Stepanyan, S.; Ireland, D. G.; Sokhan, D.; Sober, D. I.; Sparveris, N.; Strauch, S.; Taiuti, M.; Tan, J. A.; Ungaro, M.; Voskanyan, H.; Voutier, E.; Watts, D. P.; Weinstein, L.; Wei, X.; Weygand, D. P.; Zachariou, N.; Zhang, J.; Zhao, Z. W.

doi:10.1103/PhysRevC.98.015207

Title: Exclusive photoproduction of $π^{0}$ up to large values of Mandelstam variables $s, t,$ and $u$ with CLAS

Abstract

Exclusive photoproduction cross sections have been measured for the process $$\gamma p \rightarrow p\pi^0(e^+e^-(\gamma))$$ with the Dalitz decay final state using tagged photon energies in the range of $$E_{\gamma} = 1.275-5.425$$ GeV. The complete angular distribution of the final state $$\pi^0$$, for the entire photon energy range up to large values of $$t$$ and $$u$$, has been measured for the first time. The data obtained show that the cross section $$d\sigma/dt$$, at mid to large angles, decreases with energy as $$s^{-6.89\pm 0.26} $$. This is in agreement with the perturbative QCD quark counting rule prediction of $$s^{-7} $$. Paradoxically, the size of angular distribution of measured cross sections is greatly underestimated by the QCD based Generalized Parton Distribution mechanism at highest available invariant energy $s=11$ GeV$^2$. At the same time, the Regge-exchange-based models for $$\pi^0$$ photoproduction are more consistent with experimental data.

Authors:: Kunkel, M. C.; Amaryan, M. J.; Strakovsky, I. I.; Ritman, J.; Goldstein, G. R.; Adhikari, K. P.; Adhikari, S.; Avakian, H.; Ball, J.; Balossino, I.; Barion, L.; Battaglieri, M.; Batourine, V.; Bedlinskiy, I.; Biselli, A. S.; Boiarinov, S.; Briscoe, W. J.; Brooks, W. K.; Bültmann, S.; Burkert, V. D. more »« less

Publication Date:: Wed Jul 25 00:00:00 EDT 2018

Research Org.:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); George Washington Univ., Washington, DC (United States); Mississippi State Univ., Mississippi State, MS (United States); Old Dominion Univ., Norfolk, VA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Org.:: CLAS Collaboration

OSTI Identifier:: 1461599

Alternate Identifier(s):: OSTI ID: 1461455; OSTI ID: 1462020; OSTI ID: 1464055; OSTI ID: 1491830; OSTI ID: 1656768

Report Number(s):: JLAB-PHY-18-2673; DOE/OR/23177-4403; arXiv:1712.10314
Journal ID: ISSN 2469-9985; PRVCAN; 015207

Grant/Contract Number:: AC05-06OR23177; SC0016583; FG02-07ER41528; FG02-96ER40960; AC02-06CH11357

Resource Type:: Published Article

Journal Name:: Physical Review. C

Additional Journal Information:: Journal Name: Physical Review. C Journal Volume: 98 Journal Issue: 1; Journal ID: ISSN 2469-9985

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; nuclear structure & decays; particle interactions

Citation Formats


                    Kunkel, M. C., Amaryan, M. J., Strakovsky, I. I., Ritman, J., Goldstein, G. R., Adhikari, K. P., Adhikari, S., Avakian, H., Ball, J., Balossino, I., Barion, L., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Bültmann, S., Burkert, V. D., Cao, F., Carman, D. S., Celentano, A., Charles, G., Chetry, T., Ciullo, G., Clark, L., Cole, P. L., Contalbrigo, M., Cortes, O., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., De Sanctis, E., Degtyarenko, P. V., Defurne, M., Deur, A., Djalali, C., Dugger, M., Dupre, R., Egiyan, H., El Alaoui, A., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fedotov, G., Fersch, R., Filippi, A., Fradi, A., Gavalian, G., Ghandilyan, Y., Ghosh, S., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Glazier, D. I., Gohn, W., Golovatch, E., Gothe, R. W., Griffioen, K. A., Guo, L., Guidal, M., Hafidi, K., Hakobyan, H., Harrison, N., Hattawy, M., Hicks, K., Holtrop, M., Hyde, C. E., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jenkins, D., Joo, K., Kabir, M. L., Keller, D., Khachatryan, G., Khachatryan, M., Khandaker, M., Kim, A., Kim, W., Klein, A., Klein, F., Kubarovsky, V., Kuhn, S. E., Laget, J. M., Lanza, L., Lenisa, P., Lersch, D., Livingston, K., MacGregor, I. J.  D., Markov, N., Mbianda Njencheu, G., McKinnon, B., Mineeva, T., Mokeev, V., Montgomery, R. A., Movsisyan, A., Munoz Camacho, C., Nadel-Turonski, P., Niccolai, S., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Paolone, M., Park, K., Pasyuk, E., Payette, D., Phelps, W., Pogorelko, O., Poudel, J., Price, J. W., Procureur, S., Prok, Y., Protopopescu, D., Ripani, M., Ritchie, B. G., Rizzo, A., Rosner, G., Roy, A., Sabatié, F., Salgado, C., Schadmand, S., Schumacher, R. A., Sharabian, Y. G., Skorodumina, Iu., Stepanyan, S., Ireland, D. G., Sokhan, D., Sober, D. I., Sparveris, N., Strauch, S., Taiuti, M., Tan, J. A., Ungaro, M., Voskanyan, H., Voutier, E., Watts, D. P., Weinstein, L., Wei, X., Weygand, D. P., Zachariou, N., Zhang, J., and Zhao, Z. W. Exclusive photoproduction of π0 up to large values of Mandelstam variables s,t, and u with CLAS.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevC.98.015207.

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                    Kunkel, M. C., Amaryan, M. J., Strakovsky, I. I., Ritman, J., Goldstein, G. R., Adhikari, K. P., Adhikari, S., Avakian, H., Ball, J., Balossino, I., Barion, L., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Bültmann, S., Burkert, V. D., Cao, F., Carman, D. S., Celentano, A., Charles, G., Chetry, T., Ciullo, G., Clark, L., Cole, P. L., Contalbrigo, M., Cortes, O., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., De Sanctis, E., Degtyarenko, P. V., Defurne, M., Deur, A., Djalali, C., Dugger, M., Dupre, R., Egiyan, H., El Alaoui, A., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fedotov, G., Fersch, R., Filippi, A., Fradi, A., Gavalian, G., Ghandilyan, Y., Ghosh, S., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Glazier, D. I., Gohn, W., Golovatch, E., Gothe, R. W., Griffioen, K. A., Guo, L., Guidal, M., Hafidi, K., Hakobyan, H., Harrison, N., Hattawy, M., Hicks, K., Holtrop, M., Hyde, C. E., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jenkins, D., Joo, K., Kabir, M. L., Keller, D., Khachatryan, G., Khachatryan, M., Khandaker, M., Kim, A., Kim, W., Klein, A., Klein, F., Kubarovsky, V., Kuhn, S. E., Laget, J. M., Lanza, L., Lenisa, P., Lersch, D., Livingston, K., MacGregor, I. J.  D., Markov, N., Mbianda Njencheu, G., McKinnon, B., Mineeva, T., Mokeev, V., Montgomery, R. A., Movsisyan, A., Munoz Camacho, C., Nadel-Turonski, P., Niccolai, S., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Paolone, M., Park, K., Pasyuk, E., Payette, D., Phelps, W., Pogorelko, O., Poudel, J., Price, J. W., Procureur, S., Prok, Y., Protopopescu, D., Ripani, M., Ritchie, B. G., Rizzo, A., Rosner, G., Roy, A., Sabatié, F., Salgado, C., Schadmand, S., Schumacher, R. A., Sharabian, Y. G., Skorodumina, Iu., Stepanyan, S., Ireland, D. G., Sokhan, D., Sober, D. I., Sparveris, N., Strauch, S., Taiuti, M., Tan, J. A., Ungaro, M., Voskanyan, H., Voutier, E., Watts, D. P., Weinstein, L., Wei, X., Weygand, D. P., Zachariou, N., Zhang, J., & Zhao, Z. W. Exclusive photoproduction of π0 up to large values of Mandelstam variables s,t, and u with CLAS.  United States.  https://doi.org/10.1103/PhysRevC.98.015207

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                    Kunkel, M. C., Amaryan, M. J., Strakovsky, I. I., Ritman, J., Goldstein, G. R., Adhikari, K. P., Adhikari, S., Avakian, H., Ball, J., Balossino, I., Barion, L., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Bültmann, S., Burkert, V. D., Cao, F., Carman, D. S., Celentano, A., Charles, G., Chetry, T., Ciullo, G., Clark, L., Cole, P. L., Contalbrigo, M., Cortes, O., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., De Sanctis, E., Degtyarenko, P. V., Defurne, M., Deur, A., Djalali, C., Dugger, M., Dupre, R., Egiyan, H., El Alaoui, A., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fedotov, G., Fersch, R., Filippi, A., Fradi, A., Gavalian, G., Ghandilyan, Y., Ghosh, S., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Glazier, D. I., Gohn, W., Golovatch, E., Gothe, R. W., Griffioen, K. A., Guo, L., Guidal, M., Hafidi, K., Hakobyan, H., Harrison, N., Hattawy, M., Hicks, K., Holtrop, M., Hyde, C. E., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jenkins, D., Joo, K., Kabir, M. L., Keller, D., Khachatryan, G., Khachatryan, M., Khandaker, M., Kim, A., Kim, W., Klein, A., Klein, F., Kubarovsky, V., Kuhn, S. E., Laget, J. M., Lanza, L., Lenisa, P., Lersch, D., Livingston, K., MacGregor, I. J.  D., Markov, N., Mbianda Njencheu, G., McKinnon, B., Mineeva, T., Mokeev, V., Montgomery, R. A., Movsisyan, A., Munoz Camacho, C., Nadel-Turonski, P., Niccolai, S., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Paolone, M., Park, K., Pasyuk, E., Payette, D., Phelps, W., Pogorelko, O., Poudel, J., Price, J. W., Procureur, S., Prok, Y., Protopopescu, D., Ripani, M., Ritchie, B. G., Rizzo, A., Rosner, G., Roy, A., Sabatié, F., Salgado, C., Schadmand, S., Schumacher, R. A., Sharabian, Y. G., Skorodumina, Iu., Stepanyan, S., Ireland, D. G., Sokhan, D., Sober, D. I., Sparveris, N., Strauch, S., Taiuti, M., Tan, J. A., Ungaro, M., Voskanyan, H., Voutier, E., Watts, D. P., Weinstein, L., Wei, X., Weygand, D. P., Zachariou, N., Zhang, J., and Zhao, Z. W. Wed .  
"Exclusive photoproduction of π0 up to large values of Mandelstam variables s,t, and u with CLAS".  United States.  https://doi.org/10.1103/PhysRevC.98.015207.

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@article{osti_1461599,

  title        = {Exclusive photoproduction of π0 up to large values of Mandelstam variables s,t, and u with CLAS},

  author       = {Kunkel, M. C. and Amaryan, M. J. and Strakovsky, I. I. and Ritman, J. and Goldstein, G. R. and Adhikari, K. P. and Adhikari, S. and Avakian, H. and Ball, J. and Balossino, I. and Barion, L. and Battaglieri, M. and Batourine, V. and Bedlinskiy, I. and Biselli, A. S. and Boiarinov, S. and Briscoe, W. J. and Brooks, W. K. and Bültmann, S. and Burkert, V. D. and Cao, F. and Carman, D. S. and Celentano, A. and Charles, G. and Chetry, T. and Ciullo, G. and Clark, L. and Cole, P. L. and Contalbrigo, M. and Cortes, O. and Crede, V. and D'Angelo, A. and Dashyan, N. and De Vita, R. and De Sanctis, E. and Degtyarenko, P. V. and Defurne, M. and Deur, A. and Djalali, C. and Dugger, M. and Dupre, R. and Egiyan, H. and El Alaoui, A. and El Fassi, L. and Elouadrhiri, L. and Eugenio, P. and Fedotov, G. and Fersch, R. and Filippi, A. and Fradi, A. and Gavalian, G. and Ghandilyan, Y. and Ghosh, S. and Gilfoyle, G. P. and Giovanetti, K. L. and Girod, F. X. and Glazier, D. I. and Gohn, W. and Golovatch, E. and Gothe, R. W. and Griffioen, K. A. and Guo, L. and Guidal, M. and Hafidi, K. and Hakobyan, H. and Harrison, N. and Hattawy, M. and Hicks, K. and Holtrop, M. and Hyde, C. E. and Ireland, D. G. and Ishkhanov, B. S. and Isupov, E. L. and Jenkins, D. and Joo, K. and Kabir, M. L. and Keller, D. and Khachatryan, G. and Khachatryan, M. and Khandaker, M. and Kim, A. and Kim, W. and Klein, A. and Klein, F. and Kubarovsky, V. and Kuhn, S. E. and Laget, J. M. and Lanza, L. and Lenisa, P. and Lersch, D. and Livingston, K. and MacGregor, I. J.  D. and Markov, N. and Mbianda Njencheu, G. and McKinnon, B. and Mineeva, T. and Mokeev, V. and Montgomery, R. A. and Movsisyan, A. and Munoz Camacho, C. and Nadel-Turonski, P. and Niccolai, S. and Niculescu, G. and Osipenko, M. and Ostrovidov, A. I. and Paolone, M. and Park, K. and Pasyuk, E. and Payette, D. and Phelps, W. and Pogorelko, O. and Poudel, J. and Price, J. W. and Procureur, S. and Prok, Y. and Protopopescu, D. and Ripani, M. and Ritchie, B. G. and Rizzo, A. and Rosner, G. and Roy, A. and Sabatié, F. and Salgado, C. and Schadmand, S. and Schumacher, R. A. and Sharabian, Y. G. and Skorodumina, Iu. and Stepanyan, S. and Ireland, D. G. and Sokhan, D. and Sober, D. I. and Sparveris, N. and Strauch, S. and Taiuti, M. and Tan, J. A. and Ungaro, M. and Voskanyan, H. and Voutier, E. and Watts, D. P. and Weinstein, L. and Wei, X. and Weygand, D. P. and Zachariou, N. and Zhang, J. and Zhao, Z. W.},

  abstractNote = {Exclusive photoproduction cross sections have been measured for the process $\gamma p \rightarrow p\pi^0(e^+e^-(\gamma))$ with the Dalitz decay final state using tagged photon energies in the range of $E_{\gamma} = 1.275-5.425$ GeV. The complete angular distribution of the final state $\pi^0$, for the entire photon energy range up to large values of $t$ and $u$, has been measured for the first time. The data obtained show that the cross section $d\sigma/dt$, at mid to large angles, decreases with energy as $s^{-6.89\pm 0.26} $. This is in agreement with the perturbative QCD quark counting rule prediction of $s^{-7} $. Paradoxically, the size of angular distribution of measured cross sections is greatly underestimated by the QCD based Generalized Parton Distribution mechanism at highest available invariant energy $s=11$ GeV$^2$. At the same time, the Regge-exchange-based models for $\pi^0$ photoproduction are more consistent with experimental data.},

  doi          = {10.1103/PhysRevC.98.015207},

  journal      = {Physical Review. C},

  number       = 1,

  volume       = 98,

  place        = {United States},

  year         = {Wed Jul 25 00:00:00 EDT 2018},

  month        = {Wed Jul 25 00:00:00 EDT 2018}

}

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Works referenced in this record:

Finite-energy sum rules in eta photoproduction off a nucleon
journal, February 2017

Nys, J.; Mathieu, V.; Fernández-Ramírez, C.
Physical Review D, Vol. 95, Issue 3
DOI: 10.1103/PhysRevD.95.034014

Measurement of $π^{0}$ photoproduction on the proton at MAMI C
journal, August 2015

Adlarson, P.; Afzal, F.; Akondi, C. S.
Physical Review C, Vol. 92, Issue 2
DOI: 10.1103/PhysRevC.92.024617

Signatures of the handbag mechanism in wide-angle photoproduction of pseudoscalar mesons
journal, March 2004

Huang, H. W.; Jakob, R.; Kroll, P.
The European Physical Journal C, Vol. 33, Issue 1
DOI: 10.1140/epjc/s2003-01576-6

Unitarity constraints on neutral pion electroproduction
journal, January 2011

Laget, J. M.
Physics Letters B, Vol. 695, Issue 1-4
DOI: 10.1016/j.physletb.2010.11.014

The CEBAF large acceptance spectrometer (CLAS)
journal, May 2003

Mecking, B. A.; Adams, G.; Ahmad, S.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 503, Issue 3
DOI: 10.1016/S0168-9002(03)01001-5

Wave Functions, Evolution Equations and Evolution Kernels from Light-Ray Operators of QCD
journal, January 1994

Müller, D.; Robaschik, D.; Geyer, B.
Fortschritte der Physik/Progress of Physics, Vol. 42, Issue 2
DOI: 10.1002/prop.2190420202

Scaling Laws at Large Transverse Momentum
journal, October 1973

Brodsky, Stanley J.; Farrar, Glennys R.
Physical Review Letters, Vol. 31, Issue 18
DOI: 10.1103/PhysRevLett.31.1153

Neutral pion photoproduction in a Regge model
journal, October 2015

Mathieu, V.; Fox, G.; Szczepaniak, A. P.
Physical Review D, Vol. 92, Issue 7
DOI: 10.1103/PhysRevD.92.074013

Nonforward parton distributions
journal, November 1997

Radyushkin, A. V.
Physical Review D, Vol. 56, Issue 9
DOI: 10.1103/PhysRevD.56.5524

Role of $ω$ -meson exchange in scaling of the $γ p \to π^{0} p$ process from a Regge-type model with resonances
journal, August 2016

Kong, Kook-Jin; Choi, Tae Keun; Yu, Byung-Geel
Physical Review C, Vol. 94, Issue 2
DOI: 10.1103/PhysRevC.94.025202

$π^{0}$ Photoproduction in a Weak-Regge-Cut Model
journal, February 1973

Goldstein, Gary R.; Owens, Joseph F.
Physical Review D, Vol. 7, Issue 3
DOI: 10.1103/PhysRevD.7.865

Scaling limit of deeply virtual compton scattering
journal, July 1996

Radyushkin, A. V.
Physics Letters B, Vol. 380, Issue 3-4
DOI: 10.1016/0370-2693(96)00528-X

Deeply virtual Compton scattering
journal, June 1997

Ji, Xiangdong
Physical Review D, Vol. 55, Issue 11
DOI: 10.1103/PhysRevD.55.7114

Measurement of the Differential Cross Section for the Reaction $γ n \to π^{-} p$ from Deuterium
journal, July 2009

Chen, W.; Mibe, T.; Dutta, D.
Physical Review Letters, Vol. 103, Issue 1
DOI: 10.1103/PhysRevLett.103.012301

Nucleon helicity in pion photoproduction
journal, December 1995

Jenkins, David A.; Strakovsky, Igor I.
Physical Review C, Vol. 52, Issue 6
DOI: 10.1103/PhysRevC.52.3499

The role of Regge poles and cuts in high-energy phenomenology
journal, July 1971

Chiu, Charles B.
Nuclear Physics B, Vol. 30, Issue 2
DOI: 10.1016/0550-3213(71)90174-X

Photoproduction of $a_{0} (980)$ and $f_{0} (980)$
journal, February 2016

Donnachie, A.; Kalashnikova, Yu. S.
Physical Review C, Vol. 93, Issue 2
DOI: 10.1103/PhysRevC.93.025203

Measurement of the beam asymmetry $Σ$ for $π^{0}$ and $η$ photoproduction on the proton at $E_{γ} = 9$ GeV
journal, April 2017

Al Ghoul, H.; Anassontzis, E. G.; Austregesilo, A.
Physical Review C, Vol. 95, Issue 4
DOI: 10.1103/PhysRevC.95.042201

A Regge pole model fit of pion and K meson photoproduction
journal, November 1967

Ader, J. P.; Capdeville, M.; Salin, Ph.
Nuclear Physics B, Vol. 3, Issue 4
DOI: 10.1016/0550-3213(67)90011-9

Regge phenomenology in $π^{0}$ and $η$ photoproduction
journal, September 2017

Kashevarov, V. L.; Ostrick, M.; Tiator, L.
Physical Review C, Vol. 96, Issue 3
DOI: 10.1103/PhysRevC.96.035207

Cross-Section Measurement of Charged-Pion Photoproduction from Hydrogen and Deuterium
journal, July 2003

Zhu, L. Y.; Arrington, J.; Averett, T.
Physical Review Letters, Vol. 91, Issue 2
DOI: 10.1103/PhysRevLett.91.022003

The GPD H̃ and spin correlations in wide-angle Compton scattering
journal, June 2017

Kroll, P.
The European Physical Journal A, Vol. 53, Issue 6
DOI: 10.1140/epja/i2017-12326-2

Automodelity in strong interactions
journal, December 1972

Matveev, V. A.; Muradyan, R. M.; Tavkhelidze, A. N.
Lettere al Nuovo Cimento, Vol. 5, Issue 14
DOI: 10.1007/BF02777988

Nucleon form factors, generalized parton distributions and quark angular momentum
journal, April 2013

Diehl, Markus; Kroll, Peter
The European Physical Journal C, Vol. 73, Issue 4
DOI: 10.1140/epjc/s10052-013-2397-7

$π^{0}$ photoproduction on the proton for photon energies from 0.675 to 2.875 GeV
journal, August 2007

Dugger, M.; Ritchie, B. G.; Ball, J. P.
Physical Review C, Vol. 76, Issue 2
DOI: 10.1103/PhysRevC.76.025211

Semilocal duality in $π^{0}$ photoproduction
journal, September 1975

Armenian, H. K.; Goldstein, Gary R.; Rutherfoord, J. P.
Physical Review D, Vol. 12, Issue 5
DOI: 10.1103/PhysRevD.12.1278

Measurements of exclusive photoproduction processes at large values of $t$ and $u$ from 4 to 7.5 GeV
journal, August 1976

Anderson, R. L.; Gustavson, D. B.; Ritson, D. M.
Physical Review D, Vol. 14, Issue 3
DOI: 10.1103/PhysRevD.14.679

Large momentum transfer electroproduction of mesons
journal, November 2000

Huang, H. W.; Kroll, P.
The European Physical Journal C, Vol. 17, Issue 3
DOI: 10.1007/s100520000500

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Title: Exclusive photoproduction of π0 up to large values of Mandelstam variables s , t , and u with CLAS

Abstract

Citation Formats

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Title: Exclusive photoproduction of $π^{0}$ up to large values of Mandelstam variables $s, t,$ and $u$ with CLAS

Finite-energy sum rules in eta photoproduction off a nucleon
journal, February 2017

Measurement of $π^{0}$ photoproduction on the proton at MAMI C
journal, August 2015

Signatures of the handbag mechanism in wide-angle photoproduction of pseudoscalar mesons
journal, March 2004

Unitarity constraints on neutral pion electroproduction
journal, January 2011

The CEBAF large acceptance spectrometer (CLAS)
journal, May 2003

Wave Functions, Evolution Equations and Evolution Kernels from Light-Ray Operators of QCD
journal, January 1994

Scaling Laws at Large Transverse Momentum
journal, October 1973

Neutral pion photoproduction in a Regge model
journal, October 2015

Nonforward parton distributions
journal, November 1997

Role of $ω$ -meson exchange in scaling of the $γ p \to π^{0} p$ process from a Regge-type model with resonances
journal, August 2016

$π^{0}$ Photoproduction in a Weak-Regge-Cut Model
journal, February 1973

Scaling limit of deeply virtual compton scattering
journal, July 1996

Deeply virtual Compton scattering
journal, June 1997

Measurement of the Differential Cross Section for the Reaction $γ n \to π^{-} p$ from Deuterium
journal, July 2009

Nucleon helicity in pion photoproduction
journal, December 1995

The role of Regge poles and cuts in high-energy phenomenology
journal, July 1971

Photoproduction of $a_{0} (980)$ and $f_{0} (980)$
journal, February 2016

Measurement of the beam asymmetry $Σ$ for $π^{0}$ and $η$ photoproduction on the proton at $E_{γ} = 9$ GeV
journal, April 2017

A Regge pole model fit of pion and K meson photoproduction
journal, November 1967

Regge phenomenology in $π^{0}$ and $η$ photoproduction
journal, September 2017

Cross-Section Measurement of Charged-Pion Photoproduction from Hydrogen and Deuterium
journal, July 2003

The GPD H̃ and spin correlations in wide-angle Compton scattering
journal, June 2017

Automodelity in strong interactions
journal, December 1972

Nucleon form factors, generalized parton distributions and quark angular momentum
journal, April 2013

$π^{0}$ photoproduction on the proton for photon energies from 0.675 to 2.875 GeV
journal, August 2007

Semilocal duality in $π^{0}$ photoproduction
journal, September 1975

Measurements of exclusive photoproduction processes at large values of $t$ and $u$ from 4 to 7.5 GeV
journal, August 1976

Large momentum transfer electroproduction of mesons
journal, November 2000