@misc{10481/81643,
year = {2023},
month = {3},
url = {https://hdl.handle.net/10481/81643},
abstract = {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.},
organization = {Polish National Science Centre (NCN) 2019/33/B/ST2/00613},
organization = {National Science Centre, Poland 2018/31/B/ST2/01022},
organization = {ERA  PID2020-114767GB-I00},
organization = {MCIN/AEI/10.13039/501100011033},
organization = {Junta de Andalucía (FQM-225)},
publisher = {Elsevier},
keywords = {Generalized parton distributions},
keywords = {Off-shell pions},
keywords = {Sullivan process},
title = {Off-shell generalized parton distributions and form factors of the pion},
doi = {10.1016/j.physletb.2023.137872},
author = {Broniowski, Wojciech and Shastry, Vanamali and Ruiz Arriola, Enrique},
}