Off-shell generalized parton distributions and form factors of the pion Broniowski, Wojciech Shastry, Vanamali Ruiz Arriola, Enrique Generalized parton distributions Off-shell pions Sullivan process Off-shell effects in generalized parton distributions (GPDs) of the pion, appearing, e.g., in the Sullivan process, are considered. Due to the lack of crossing symmetry, the moments of GPDs involve also odd powers of the skewness (longitudinal momentum transfer) parameter, which results in emergence of new off-shell form factors. With current-algebra techniques, we derive exact relations between the four off-shell gravitational form factors of the pion, in analogy to the electromagnetic case. Our results place stringent constraints on the off-shell GPDs of the pion. We provide an explicit realization in terms of a chiral quark model, where we show that the off-shell effects in GPDs are potentially significant in modeling physical processes and should not be neglected. 2023-05-18T09:39:17Z 2023-05-18T09:39:17Z 2023-03-22 journal article W. Broniowski, V. Shastry and E. Ruiz Arriola. Off-shell generalized parton distributions and form factors of the pion. Physics Letters B 840 (2023) 137872 [https://doi.org/10.1016/j.physletb.2023.137872] https://hdl.handle.net/10481/81643 10.1016/j.physletb.2023.137872 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Elsevier