Studying Bremsstrahlung in Polarized Background Field at EIC and EicC
Fuente:
arXiv
Saved in:
| Main Author: | |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912762961068032 |
|---|---|
| author | Li, Cong |
| author_facet | Li, Cong |
| contents | We present a quantum-field-theoretical study of bremsstrahlung from an electron propagating in a linearly polarized background photon field. Starting from the photon two-point correlator, the background-modified photon propagator is parameterized via transverse-momentum-dependent photon distributions. Coulomb correction is incorporated through a gauge-link formalism and soft-photon radiation is resummed with a Sudakov factor, yielding an analytic form of the polarized Bethe-Heitler spectrum. Numerical illustrations show a characteristic $\cos 2ϕ$ azimuthal modulation of a few percent in the differential distribution, with Sudakov suppression at low transverse momentum and mild Coulomb-induced enhancement at larger $q_\perp$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_04198 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Studying Bremsstrahlung in Polarized Background Field at EIC and EicC Li, Cong High Energy Physics - Phenomenology We present a quantum-field-theoretical study of bremsstrahlung from an electron propagating in a linearly polarized background photon field. Starting from the photon two-point correlator, the background-modified photon propagator is parameterized via transverse-momentum-dependent photon distributions. Coulomb correction is incorporated through a gauge-link formalism and soft-photon radiation is resummed with a Sudakov factor, yielding an analytic form of the polarized Bethe-Heitler spectrum. Numerical illustrations show a characteristic $\cos 2ϕ$ azimuthal modulation of a few percent in the differential distribution, with Sudakov suppression at low transverse momentum and mild Coulomb-induced enhancement at larger $q_\perp$. |
| title | Studying Bremsstrahlung in Polarized Background Field at EIC and EicC |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2503.04198 |