Cover Image

Baryon-antibaryon photoproduction cross sections off the proton

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	GlueX Collaboration, Afzal, F., Albrecht, M., Amaryan, M., Arrigo, S., Arroyave, V., Asaturyan, A., Austregesilo, A., Baldwin, Z., Barbosa, F., Barlow, J., Barriga, E., Barsotti, R., Barton, D., Baturin, V., Berdnikov, V. V., Berger, A., Boeglin, W., Boer, M., Briscoe, W. J., Britton, T., Brunner, R., Cao, S., Chen, C., Chudakov, E., Chung, G., Cole, P. L., Cortes, O., Crede, V., Dalton, M. M., Darulis, D., Deur, A., Dietrich, L., Dobbs, S., Dolgolenko, A., Dugger, M., Dzhygadlo, R., Ebersole, D., Edo, M., Egiyan, H., Eugenio, P., Fabrizi, A., Fanelli, C., Fang, S., Fritsch, M., Furletov, S., Gan, L., Gao, H., Gardner, A., Gasparian, A., Glazier, D. I., Gleason, C., Grube, B., Guo, J., Hernandez, J., Hernandez, K., Herrmann, N., Hoffman, N. D., Hornidge, D., Huber, G. M., Hurck, P., Imoehl, W., Ireland, D. G., Ito, M. M., Jaegle, I., Jarvis, N. S., Jeske, T., Jing, M., Jones, R. T., Kakoyan, V., Kalicy, G., Kang, X., Khachatryan, V., Kourkoumelis, C., LaDuke, A., Larin, I., Lawrence, D., Lersch, D. I., Li, H., Liu, B., Livingston, K., Lorenti, L., Lyubovitskij, V., Marukyan, H., Matveev, V., McCaughan, M., McCracken, M., Meyer, C. A., Miskimen, R., Mitchell, R. E., Moran, P., Ng, L., Nissen, E., Orešić, S., Ostrovidov, A. I., Papandreou, Z., Pentchev, L., Peters, K. J., Veetil, L. Puthiya, Rakshit, S., Reinhold, J., Remington, A., Ritman, J., Rodriguez, G., Saldana, K., Schadmand, S., Schertz, A. M., Scheuer, K., Schmidt, A., Schumacher, R. A., Schwiening, J., Scott, M., Septian, N., Sharp, P., Shen, V. J., Shen, X., Shepherd, M. R., Sikes, J., Singh, H., Smith, A., Smith, E. S., Somov, A., Somov, S., Stevens, J. R., Strakovsky, I. I., Sumner, B., Suresh, K., Tarasov, V. V., Taylor, S., Teymurazyan, A., Thiel, A., Thomson, M., Viducic, T., Whitlatch, T., Wunderlich, Y., Yu, B., Zarling, J., Zhang, Z., Zhou, X., Zihlmann, B.
Format:	Preprint
Published:	2025
Subjects:	High Energy Physics - Experiment Nuclear Experiment Nuclear Theory
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

_version_	1866909030410092544
author	GlueX Collaboration Afzal, F. Albrecht, M. Amaryan, M. Arrigo, S. Arroyave, V. Asaturyan, A. Austregesilo, A. Baldwin, Z. Barbosa, F. Barlow, J. Barriga, E. Barsotti, R. Barton, D. Baturin, V. Berdnikov, V. V. Berger, A. Boeglin, W. Boer, M. Briscoe, W. J. Britton, T. Brunner, R. Cao, S. Chen, C. Chudakov, E. Chung, G. Cole, P. L. Cortes, O. Crede, V. Dalton, M. M. Darulis, D. Deur, A. Dietrich, L. Dobbs, S. Dolgolenko, A. Dugger, M. Dzhygadlo, R. Ebersole, D. Edo, M. Egiyan, H. Eugenio, P. Fabrizi, A. Fanelli, C. Fang, S. Fritsch, M. Furletov, S. Gan, L. Gao, H. Gardner, A. Gasparian, A. Glazier, D. I. Gleason, C. Grube, B. Guo, J. Hernandez, J. Hernandez, K. Herrmann, N. Hoffman, N. D. Hornidge, D. Huber, G. M. Hurck, P. Imoehl, W. Ireland, D. G. Ito, M. M. Jaegle, I. Jarvis, N. S. Jeske, T. Jing, M. Jones, R. T. Kakoyan, V. Kalicy, G. Kang, X. Khachatryan, V. Kourkoumelis, C. LaDuke, A. Larin, I. Lawrence, D. Lersch, D. I. Li, H. Liu, B. Livingston, K. Lorenti, L. Lyubovitskij, V. Marukyan, H. Matveev, V. McCaughan, M. McCracken, M. Meyer, C. A. Miskimen, R. Mitchell, R. E. Moran, P. Ng, L. Nissen, E. Orešić, S. Ostrovidov, A. I. Papandreou, Z. Pentchev, L. Peters, K. J. Veetil, L. Puthiya Rakshit, S. Reinhold, J. Remington, A. Ritman, J. Rodriguez, G. Saldana, K. Schadmand, S. Schertz, A. M. Scheuer, K. Schmidt, A. Schumacher, R. A. Schwiening, J. Scott, M. Septian, N. Sharp, P. Shen, V. J. Shen, X. Shepherd, M. R. Sikes, J. Singh, H. Smith, A. Smith, E. S. Somov, A. Somov, S. Stevens, J. R. Strakovsky, I. I. Sumner, B. Suresh, K. Tarasov, V. V. Taylor, S. Teymurazyan, A. Thiel, A. Thomson, M. Viducic, T. Whitlatch, T. Wunderlich, Y. Yu, B. Zarling, J. Zhang, Z. Zhou, X. Zihlmann, B.
author_facet	GlueX Collaboration Afzal, F. Albrecht, M. Amaryan, M. Arrigo, S. Arroyave, V. Asaturyan, A. Austregesilo, A. Baldwin, Z. Barbosa, F. Barlow, J. Barriga, E. Barsotti, R. Barton, D. Baturin, V. Berdnikov, V. V. Berger, A. Boeglin, W. Boer, M. Briscoe, W. J. Britton, T. Brunner, R. Cao, S. Chen, C. Chudakov, E. Chung, G. Cole, P. L. Cortes, O. Crede, V. Dalton, M. M. Darulis, D. Deur, A. Dietrich, L. Dobbs, S. Dolgolenko, A. Dugger, M. Dzhygadlo, R. Ebersole, D. Edo, M. Egiyan, H. Eugenio, P. Fabrizi, A. Fanelli, C. Fang, S. Fritsch, M. Furletov, S. Gan, L. Gao, H. Gardner, A. Gasparian, A. Glazier, D. I. Gleason, C. Grube, B. Guo, J. Hernandez, J. Hernandez, K. Herrmann, N. Hoffman, N. D. Hornidge, D. Huber, G. M. Hurck, P. Imoehl, W. Ireland, D. G. Ito, M. M. Jaegle, I. Jarvis, N. S. Jeske, T. Jing, M. Jones, R. T. Kakoyan, V. Kalicy, G. Kang, X. Khachatryan, V. Kourkoumelis, C. LaDuke, A. Larin, I. Lawrence, D. Lersch, D. I. Li, H. Liu, B. Livingston, K. Lorenti, L. Lyubovitskij, V. Marukyan, H. Matveev, V. McCaughan, M. McCracken, M. Meyer, C. A. Miskimen, R. Mitchell, R. E. Moran, P. Ng, L. Nissen, E. Orešić, S. Ostrovidov, A. I. Papandreou, Z. Pentchev, L. Peters, K. J. Veetil, L. Puthiya Rakshit, S. Reinhold, J. Remington, A. Ritman, J. Rodriguez, G. Saldana, K. Schadmand, S. Schertz, A. M. Scheuer, K. Schmidt, A. Schumacher, R. A. Schwiening, J. Scott, M. Septian, N. Sharp, P. Shen, V. J. Shen, X. Shepherd, M. R. Sikes, J. Singh, H. Smith, A. Smith, E. S. Somov, A. Somov, S. Stevens, J. R. Strakovsky, I. I. Sumner, B. Suresh, K. Tarasov, V. V. Taylor, S. Teymurazyan, A. Thiel, A. Thomson, M. Viducic, T. Whitlatch, T. Wunderlich, Y. Yu, B. Zarling, J. Zhang, Z. Zhou, X. Zihlmann, B.
contents	The GlueX experiment at Jefferson Lab has observed $p\bar{p}$ and, for the first time, $Λ\barΛ$ and $p\barΛ$ photoproduction from a proton target at photon energies up to 11.6 GeV. The angular distributions are forward peaked for all produced pairs, consistent with Regge-like $t$-channel exchange. Asymmetric wide-angle anti-baryon distributions show the presence of additional processes. In a phenomenological model, we find consistency with a double $t$-channel exchange process where anti-baryons are created only at the middle vertex. The model matches all observed distributions with a small number of free parameters. In the hyperon channels, we observe a clear distinction between photoproduction of the $Λ\barΛ$ and $p\barΛ$ systems but general similarity to the $p\bar{p}$ system. We report both total cross sections and cross sections differential with respect to momentum transfer and the invariant masses of the created particle pairs. No narrow resonant structures were found in these reaction channels. The suppression of $s\bar{s}$ quark pairs relative to $d\bar{d}$ quark pairs is similar to what has been seen in other reactions.
format	Preprint
id	arxiv_https___arxiv_org_abs_2510_26890
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Baryon-antibaryon photoproduction cross sections off the proton GlueX Collaboration Afzal, F. Albrecht, M. Amaryan, M. Arrigo, S. Arroyave, V. Asaturyan, A. Austregesilo, A. Baldwin, Z. Barbosa, F. Barlow, J. Barriga, E. Barsotti, R. Barton, D. Baturin, V. Berdnikov, V. V. Berger, A. Boeglin, W. Boer, M. Briscoe, W. J. Britton, T. Brunner, R. Cao, S. Chen, C. Chudakov, E. Chung, G. Cole, P. L. Cortes, O. Crede, V. Dalton, M. M. Darulis, D. Deur, A. Dietrich, L. Dobbs, S. Dolgolenko, A. Dugger, M. Dzhygadlo, R. Ebersole, D. Edo, M. Egiyan, H. Eugenio, P. Fabrizi, A. Fanelli, C. Fang, S. Fritsch, M. Furletov, S. Gan, L. Gao, H. Gardner, A. Gasparian, A. Glazier, D. I. Gleason, C. Grube, B. Guo, J. Hernandez, J. Hernandez, K. Herrmann, N. Hoffman, N. D. Hornidge, D. Huber, G. M. Hurck, P. Imoehl, W. Ireland, D. G. Ito, M. M. Jaegle, I. Jarvis, N. S. Jeske, T. Jing, M. Jones, R. T. Kakoyan, V. Kalicy, G. Kang, X. Khachatryan, V. Kourkoumelis, C. LaDuke, A. Larin, I. Lawrence, D. Lersch, D. I. Li, H. Liu, B. Livingston, K. Lorenti, L. Lyubovitskij, V. Marukyan, H. Matveev, V. McCaughan, M. McCracken, M. Meyer, C. A. Miskimen, R. Mitchell, R. E. Moran, P. Ng, L. Nissen, E. Orešić, S. Ostrovidov, A. I. Papandreou, Z. Pentchev, L. Peters, K. J. Veetil, L. Puthiya Rakshit, S. Reinhold, J. Remington, A. Ritman, J. Rodriguez, G. Saldana, K. Schadmand, S. Schertz, A. M. Scheuer, K. Schmidt, A. Schumacher, R. A. Schwiening, J. Scott, M. Septian, N. Sharp, P. Shen, V. J. Shen, X. Shepherd, M. R. Sikes, J. Singh, H. Smith, A. Smith, E. S. Somov, A. Somov, S. Stevens, J. R. Strakovsky, I. I. Sumner, B. Suresh, K. Tarasov, V. V. Taylor, S. Teymurazyan, A. Thiel, A. Thomson, M. Viducic, T. Whitlatch, T. Wunderlich, Y. Yu, B. Zarling, J. Zhang, Z. Zhou, X. Zihlmann, B. High Energy Physics - Experiment Nuclear Experiment Nuclear Theory The GlueX experiment at Jefferson Lab has observed $p\bar{p}$ and, for the first time, $Λ\barΛ$ and $p\barΛ$ photoproduction from a proton target at photon energies up to 11.6 GeV. The angular distributions are forward peaked for all produced pairs, consistent with Regge-like $t$-channel exchange. Asymmetric wide-angle anti-baryon distributions show the presence of additional processes. In a phenomenological model, we find consistency with a double $t$-channel exchange process where anti-baryons are created only at the middle vertex. The model matches all observed distributions with a small number of free parameters. In the hyperon channels, we observe a clear distinction between photoproduction of the $Λ\barΛ$ and $p\barΛ$ systems but general similarity to the $p\bar{p}$ system. We report both total cross sections and cross sections differential with respect to momentum transfer and the invariant masses of the created particle pairs. No narrow resonant structures were found in these reaction channels. The suppression of $s\bar{s}$ quark pairs relative to $d\bar{d}$ quark pairs is similar to what has been seen in other reactions.
title	Baryon-antibaryon photoproduction cross sections off the proton
topic	High Energy Physics - Experiment Nuclear Experiment Nuclear Theory
url	https://arxiv.org/abs/2510.26890