### Abstract

We develop a formalism for the resummation of target mass corrections in off-forward two-photon amplitudes given by a chronological product of electromagnetic currents, arising in, e.g., deeply virtual Compton scattering. The method is based on a relation of composite operators with a definite twist to harmonic tensors, which form an irreducible representation of the Lorentz group. We give an application of the framework for the matrix elements of twist-two operators.

Original language | English (US) |
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Pages (from-to) | 173-182 |

Number of pages | 10 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 507 |

Issue number | 1-4 |

DOIs | |

State | Published - May 17 2001 |

Externally published | Yes |

### Fingerprint

### Keywords

- Double distributions
- Harmonic tensors
- Skewed parton distributions
- Target mass corrections
- Two-photon processes

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

**Resummation of target mass corrections in two-photon processes : Twist-two sector.** / Belitsky, Andrei; Müller, D.

Research output: Contribution to journal › Article

*Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics*, vol. 507, no. 1-4, pp. 173-182. https://doi.org/10.1016/S0370-2693(01)00425-7

}

TY - JOUR

T1 - Resummation of target mass corrections in two-photon processes

T2 - Twist-two sector

AU - Belitsky, Andrei

AU - Müller, D.

PY - 2001/5/17

Y1 - 2001/5/17

N2 - We develop a formalism for the resummation of target mass corrections in off-forward two-photon amplitudes given by a chronological product of electromagnetic currents, arising in, e.g., deeply virtual Compton scattering. The method is based on a relation of composite operators with a definite twist to harmonic tensors, which form an irreducible representation of the Lorentz group. We give an application of the framework for the matrix elements of twist-two operators.

AB - We develop a formalism for the resummation of target mass corrections in off-forward two-photon amplitudes given by a chronological product of electromagnetic currents, arising in, e.g., deeply virtual Compton scattering. The method is based on a relation of composite operators with a definite twist to harmonic tensors, which form an irreducible representation of the Lorentz group. We give an application of the framework for the matrix elements of twist-two operators.

KW - Double distributions

KW - Harmonic tensors

KW - Skewed parton distributions

KW - Target mass corrections

KW - Two-photon processes

UR - http://www.scopus.com/inward/record.url?scp=0035902145&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035902145&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(01)00425-7

DO - 10.1016/S0370-2693(01)00425-7

M3 - Article

AN - SCOPUS:0035902145

VL - 507

SP - 173

EP - 182

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-4

ER -