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We present a first, detailed study of diffractive dijet photoproduction at the recently approved electron-ion collider (EIC) at BNL. Apart from establishing the kinematic reaches for various beam types, energies and kinematic cuts, we make precise predictions at next-to-leading order (NLO) of QCD in the most important kinematic variables. We show that the EIC will provide new and more precise information on the diffractive parton density functions (PDFs) in the pomeron than previously obtained at HERA, illuminate the still disputed mechanism of global vs. only resolved-photon factorization breaking, and provide access to a completely new quantity, i.e. nuclear diffractive PDFs.
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P. Newman and M. Wing, The hadronic final state at HERA, Rev. Mod. Phys. 86 (2014) 1037 [arXiv:1308.3368] [INSPIRE].
M. Klasen, Theory of hard photoproduction, Rev. Mod. Phys. 74 (2002) 1221 [hep-ph/0206169] [INSPIRE].
J.C. Collins, Proof of factorization for diffractive hard scattering, Phys. Rev. D 57 (1998) 3051 [Erratum ibid. D 61 (2000) 019902] [hep-ph/9709499] [INSPIRE].
G. Ingelman and P.E. Schlein, Jet structure in high mass diffractive scattering, Phys. Lett. B 152 (1985) 256.
H1 collaboration, Measurement and QCD analysis of the diffractive deep-inelastic scattering cross-section at HERA, Eur. Phys. J. C 48 (2006) 715 [hep-ex/0606004] [INSPIRE].
H1 collaboration, Dijet cross sections and parton densities in diffractive DIS at HERA, JHEP 10 (2007) 042 [arXiv:0708.3217] [INSPIRE].
ZEUS collaboration, A QCD analysis of ZEUS diffractive data, Nucl. Phys. B 831 (2010) 1 [arXiv:0911.4119] [INSPIRE].
CDF collaboration, Diffractive dijets with a leading antiproton in \( \overline{p}p \)collisions at \( \sqrt{s} \) = 1800 GeV, Phys. Rev. Lett. 84 (2000) 5043 [INSPIRE].
CDF collaboration, Diffractive dijet production at \( \sqrt{s} \) = 630 GeV and 1800 GeV at the Fermilab Tevatron, Phys. Rev. Lett. 88 (2002) 151802 [hep-ex/0109025] [INSPIRE].
CMS, TOTEM collaboration, Measurement of single-diffractive dijet production in proton-proton collisions at \( \sqrt{s} \) = 8 TeV with the CMS and TOTEM experiments, arXiv:2002.12146 [INSPIRE].
M. Klasen and G. Kramer, Survival probability for diffractive dijet production in pp̄ collisions from next-to-leading order calculations, Phys. Rev. D 80 (2009) 074006 [arXiv:0908.2531] [INSPIRE].
V.A. Khoze, A.D. Martin and M.G. Ryskin, Soft diffraction and the elastic slope at Tevatron and LHC energies: a MultiPomeron approach, Eur. Phys. J. C 18 (2000) 167 [hep-ph/0007359] [INSPIRE].
A.B. Kaidalov, V.A. Khoze, A.D. Martin and M.G. Ryskin, Probabilities of rapidity gaps in high-energy interactions, Eur. Phys. J. C 21 (2001) 521 [hep-ph/0105145] [INSPIRE].
A.B. Kaidalov, V.A. Khoze, A.D. Martin and M.G. Ryskin, Unitarity effects in hard diffraction at HERA, Phys. Lett. B 567 (2003) 61 [hep-ph/0306134] [INSPIRE].
M. Klasen, G. Kramer and S.G. Salesch, Photoproduction of jets at HERA: Comparison of next-to-leading order calculation with ZEUS data, Z. Phys. C 68 (1995) 113 [INSPIRE].
M. Klasen and G. Kramer, Inclusive dijet production at HERA: direct photon cross-sections in next-to-leading order QCD, Z. Phys. C 72 (1996) 107 [hep-ph/9511405] [INSPIRE].
M. Klasen and G. Kramer, Inclusive two jet production at HERA: direct and resolved cross-sections in next-to-leading order QCD, Z. Phys. C 76 (1997) 67 [hep-ph/9611450] [INSPIRE].
M. Klasen, T. Kleinwort and G. Kramer, Inclusive jet production in γp and γγ processes: direct and resolved photon cross sections in next-to-leading order QCD, Eur. Phys. J. direct 1 (1998) 1 [hep-ph/9712256] [INSPIRE].
M. Klasen, G. Kramer and M. Michael, Next-to-next-to-leading order contributions to jet photoproduction and determination of αs , Phys. Rev. D 89 (2014) 074032 [arXiv:1310.1724] [INSPIRE].
T. Biekötter, M. Klasen and G. Kramer, Next-to-next-to-leading order contributions to inclusive jet production in deep-inelastic scattering and determination of αs , Phys. Rev. D 92 (2015) 074037 [arXiv:1508.07153] [INSPIRE].
M. Klasen and G. Kramer, Factorization scheme and scale dependence in diffractive dijet production at low Q2 , J. Phys. G 31 (2005) 1391 [hep-ph/0506121] [INSPIRE].
H1 collaboration, Tests of QCD factorisation in the diffractive production of dijets in deep-inelastic scattering and photoproduction at HERA, Eur. Phys. J. C 51 (2007) 549 [hep-ex/0703022] [INSPIRE].
ZEUS collaboration, Diffractive photoproduction of dijets in ep collisions at HERA, Eur. Phys. J. C 55 (2008) 177 [arXiv:0710.1498] [INSPIRE].
M. Klasen and G. Kramer, Review of factorization breaking in diffractive photoproduction of dijets, Mod. Phys. Lett. A 23 (2008) 1885 [arXiv:0806.2269] [INSPIRE].
V. Guzey and M. Klasen, A fresh look at factorization breaking in diffractive photoproduction of dijets at HERA at next-to-leading order QCD, Eur. Phys. J. C 76 (2016) 467 [arXiv:1606.01350] [INSPIRE].
A.J. Baltz, The physics of ultraperipheral collisions at the LHC, Phys. Rept. 458 (2008) 1 [arXiv:0706.3356] [INSPIRE].
V. Guzey and M. Klasen, Inclusive dijet photoproduction in ultraperipheral heavy ion collisions at the CERN Large Hadron Collider in next-to-leading order QCD, Phys. Rev. C 99 (2019) 065202 [arXiv:1811.10236] [INSPIRE].
V. Guzey and M. Klasen, Diffractive dijet photoproduction in ultraperipheral collisions at the LHC in next-to-leading order QCD, JHEP 04 (2016) 158 [arXiv:1603.06055] [INSPIRE].
V. Guzey and M. Klasen, Constraints on nuclear parton distributions from dijet photoproduction at the LHC, Eur. Phys. J. C 79 (2019) 396 [arXiv:1902.05126] [INSPIRE].
L. Frankfurt, V. Guzey and M. Strikman, Leading twist nuclear shadowing phenomena in hard processes with nuclei, Phys. Rept. 512 (2012) 255 [arXiv:1106.2091] [INSPIRE].
A. Accardi et al., Electron ion collider: the next QCD frontier, Eur. Phys. J. A 52 (2016) 268 [arXiv:1212.1701] [INSPIRE].
D. Boer, P.J. Mulders, C. Pisano and J. Zhou, Asymmetries in heavy quark pair and dijet production at an EIC, JHEP 08 (2016) 001 [arXiv:1605.07934] [INSPIRE].
M. Klasen, K. Kovarik and J. Potthoff, Nuclear parton density functions from jet production in DIS at an EIC, Phys. Rev. D 95 (2017) 094013 [arXiv:1703.02864] [INSPIRE].
R. Boughezal, F. Petriello and H. Xing, Inclusive jet production as a probe of polarized parton distribution functions at a future EIC, Phys. Rev. D 98 (2018) 054031 [arXiv:1806.07311] [INSPIRE].
X. Liu, F. Ringer, W. Vogelsang and F. Yuan, Lepton-jet correlations in deep inelastic scattering at the electron-ion collider, Phys. Rev. Lett. 122 (2019) 192003 [arXiv:1812.08077] [INSPIRE].
M. Arratia, Y. Song, F. Ringer and B. Jacak, Jets as precision probes in electron-nucleus collisions at the electron-ion collider, arXiv:1912.05931 [INSPIRE].
Y. Hatta, N. Mueller, T. Ueda and F. Yuan, QCD resummation in hard diffractive dijet production at the electron-ion collider, Phys. Lett. B 802 (2020) 135211 [arXiv:1907.09491].
H. Mäntysaari, N. Mueller, F. Salazar and B. Schenke, Multi-gluon correlations and evidence of saturation from dijet measurements at an electron ion collider, Phys. Rev. Lett. 124 (2020) 112301 [arXiv:1912.05586] [INSPIRE].
M. Klasen and K. Kovařík, Nuclear parton density functions from dijet photoproduction at the EIC, Phys. Rev. D 97 (2018) 114013 [arXiv:1803.10985] [INSPIRE].
V. Guzey and M. Klasen, NLO QCD predictions for dijet photoproduction in lepton-nucleus scattering at the EIC, LHeC, HE-LHeC and FCC, arXiv:2003.09129 [INSPIRE].
X. Chu, E.-C. Aschenauer, J.-H. Lee and L. Zheng, Photon structure studied at an electron ion collider, Phys. Rev. D 96 (2017) 074035 [arXiv:1705.08831] [INSPIRE].
E.-C. Aschenauer, K. Lee, B.S. Page and F. Ringer, Jet angularities in photoproduction at the electron-ion collider, Phys. Rev. D 101 (2020) 054028 [arXiv:1910.11460] [INSPIRE].
S. Frixione, M.L. Mangano, P. Nason and G. Ridolfi, Improving the Weizsacker-Williams approximation in electron-proton collisions, Phys. Lett. B 319 (1993) 339 [hep-ph/9310350] [INSPIRE].
M. Gluck, E. Reya and A. Vogt, Photonic parton distributions, Phys. Rev. D 46 (1992) 1973 [INSPIRE].
M. Cacciari, G.P. Salam and G. Soyez, The anti-kt jet clustering algorithm, JHEP 04 (2008) 063 [arXiv:0802.1189] [INSPIRE].
M. Klasen and G. Kramer, Dijet cross-sections at \( o\left({\alpha \alpha}_S^2\right) \)in photon-proton collisions, Phys. Lett. B 366 (1996) 385 [hep-ph/9508337] [INSPIRE].
ZEUS collaboration, Inclusive-jet photoproduction at HERA and determination of alphas, Nucl. Phys. B 864 (2012) 1 [arXiv:1205.6153] [INSPIRE].
M. Gluck, E. Reya and A. Vogt, Pionic parton distributions, Z. Phys. C 53 (1992) 651 [INSPIRE].
J. Skaritka et al., Conceptual design of a polarized electron ion collider at Brookhaven National Laboratory, PoS(PSTP2017)015.
A.B. Kaidalov, V.A. Khoze, A.D. Martin and M.G. Ryskin, Factorization breaking in diffractive dijet photoproduction at HERA, Eur. Phys. J. C 66 (2010) 373 [arXiv:0911.3716] [INSPIRE].
T.H. Bauer, R.D. Spital, D.R. Yennie and F.M. Pipkin, The hadronic properties of the photon in high-energy interactions, Rev. Mod. Phys. 50 (1978) 261 [Erratum ibid. 51 (1979) 407] [INSPIRE].
J. Nemchik, N.N. Nikolaev, E. Predazzi and B.G. Zakharov, Color dipole systematics of diffractive photoproduction and electroproduction of vector mesons, Phys. Lett. B 374 (1996) 199 [hep-ph/9604419] [INSPIRE].
H. Kowalski, L. Motyka and G. Watt, Exclusive diffractive processes at HERA within the dipole picture, Phys. Rev. D 74 (2006) 074016 [hep-ph/0606272] [INSPIRE].
M. Klasen and G. Kramer, Suppression factors in diffractive photoproduction of dijets, Eur. Phys. J. C 70 (2010) 91 [arXiv:1006.4964] [INSPIRE].
H. De Vries, C.W. De Jager and C. De Vries, Nuclear charge and magnetization density distribution parameters from elastic electron scattering, Atom. Data Nucl. Data Tabl. 36 (1987) 495.
H1 collaboration, Measurement of dijet cross sections in ep interactions with a leading neutron at HERA, Eur. Phys. J. C 41 (2005) 273 [hep-ex/0501074] [INSPIRE].
ZEUS collaboration, Measurement of dijet cross-sections for events with a leading neutron in photoproduction at HERA, Nucl. Phys. B 596 (2001) 3 [hep-ex/0010019] [INSPIRE].
ZEUS collaboration, Measurement of dijet photoproduction for events with a leading neutron at HERA, Nucl. Phys. B 827 (2010) 1 [arXiv:0909.3032] [INSPIRE].
M. Klasen and G. Kramer, Photoproduction of jets on a virtual pion target in next-to-leading order QCD, Phys. Lett. B 508 (2001) 259 [hep-ph/0103056] [INSPIRE].
M. Klasen, The Pion structure function and jet production in γp → nX , J. Phys. G 28 (2002) 1091 [hep-ph/0107011] [INSPIRE].
M. Klasen and G. Kramer, Factorization breaking in dijet photoproduction with a leading neutron, Eur. Phys. J. C 49 (2007) 957 [hep-ph/0608235] [INSPIRE].
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Guzey, V., Klasen, M. Diffractive dijet photoproduction at the EIC. J. High Energ. Phys. 2020, 74 (2020). https://doi.org/10.1007/JHEP05(2020)074
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DOI: https://doi.org/10.1007/JHEP05(2020)074