Hard exclusive pion electroproduction at backward angles with CLAS.

K. Park; M. Guidal; R. W. Gothe; B. Pire; K. Semenov-Tian-Shansky; J-M. Laget; K. P. Adhikari; Angela Biselli

doi:10.1016/j.physletb.2018.03.026

Hard exclusive pion electroproduction at backward angles with CLAS.

K. Park, M. Guidal, R. W. Gothe, B. Pire, K. Semenov-Tian-Shansky, J-M. Laget, K. P. Adhikari, Angela Biselli

Fairfield University

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Abstract

We report on the first measurement of cross sections for exclusive deeply virtual pion electroproduction off the proton, , above the resonance region at backward pion center-of-mass angles. The ⁎-dependent cross sections were measured, from which we extracted three combinations of structure functions of the proton. Our results are compatible with calculations based on nucleon-to-pion transition distribution amplitudes (TDAs). These non-perturbative objects are defined as matrix elements of three-quark-light-cone-operators and characterize partonic correlations with a particular emphasis on baryon charge distribution inside a nucleon.

Original language	American English
Journal	Physics Letters B
Volume	780
DOIs	https://doi.org/10.1016/j.physletb.2018.03.026
State	Published - Jan 1 2018

Disciplines

Physical Sciences and Mathematics
Physics

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https://doi.org/10.1016/j.physletb.2018.03.026

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title = "Hard exclusive pion electroproduction at backward angles with CLAS.",

abstract = " We report on the first measurement of cross sections for exclusive deeply virtual pion electroproduction off the proton, , above the resonance region at backward pion center-of-mass angles. The ⁎-dependent cross sections were measured, from which we extracted three combinations of structure functions of the proton. Our results are compatible with calculations based on nucleon-to-pion transition distribution amplitudes (TDAs). These non-perturbative objects are defined as matrix elements of three-quark-light-cone-operators and characterize partonic correlations with a particular emphasis on baryon charge distribution inside a nucleon.",

author = "K. Park and M. Guidal and Gothe, \{R. W.\} and B. Pire and K. Semenov-Tian-Shansky and J-M. Laget and Adhikari, \{K. P.\} and Angela Biselli",

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doi = "10.1016/j.physletb.2018.03.026",

language = "American English",

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T1 - Hard exclusive pion electroproduction at backward angles with CLAS.

AU - Park, K.

AU - Guidal, M.

AU - Gothe, R. W.

AU - Pire, B.

AU - Semenov-Tian-Shansky, K.

AU - Laget, J-M.

AU - Adhikari, K. P.

AU - Biselli, Angela

PY - 2018/1/1

Y1 - 2018/1/1

N2 - We report on the first measurement of cross sections for exclusive deeply virtual pion electroproduction off the proton, , above the resonance region at backward pion center-of-mass angles. The ⁎-dependent cross sections were measured, from which we extracted three combinations of structure functions of the proton. Our results are compatible with calculations based on nucleon-to-pion transition distribution amplitudes (TDAs). These non-perturbative objects are defined as matrix elements of three-quark-light-cone-operators and characterize partonic correlations with a particular emphasis on baryon charge distribution inside a nucleon.

AB - We report on the first measurement of cross sections for exclusive deeply virtual pion electroproduction off the proton, , above the resonance region at backward pion center-of-mass angles. The ⁎-dependent cross sections were measured, from which we extracted three combinations of structure functions of the proton. Our results are compatible with calculations based on nucleon-to-pion transition distribution amplitudes (TDAs). These non-perturbative objects are defined as matrix elements of three-quark-light-cone-operators and characterize partonic correlations with a particular emphasis on baryon charge distribution inside a nucleon.

UR - https://digitalcommons.fairfield.edu/physics-facultypubs/147

UR - https://doi.org/10.1016/j.physletb.2018.03.026

U2 - 10.1016/j.physletb.2018.03.026

DO - 10.1016/j.physletb.2018.03.026

M3 - Article

VL - 780

JO - Physics Letters B

JF - Physics Letters B

ER -

Hard exclusive pion electroproduction at backward angles with CLAS.

Abstract

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