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Perturbative power Q^2-corrections to the structure function g(1)
High Energy Physics - Phenomenology · Submitted 3 Jul 2006
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We prove that regulating infrared divergencies generates power (~1/(Q^2)^k) corrections to the spin structure function g_1 at small x and large Q^2.
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The abstract, sentence by sentence
We prove that regulating infrared divergencies generates power (~1/(Q^2)^k) corrections to the spin structure function g_1 at small x and large Q^2. At the same time it leads to the corrections ~(Q^2)^k at small Q^2. We present the explicit series of such terms as well as the formulae for their resummation. These contributions are not included in the standard analysis of the experimental data. We argue that accounting for such terms can sizably change the impact of the other power corrections conventionally attributed to the higher twists.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We prove that regulating infrared divergencies generates power (~1/(Q^2)^k) corrections to the spin structure function g_1 at small x and large Q^2. | result 0.93 | 0.93 | 0.80 | asserted 1.00 |
| s1 | At the same time it leads to the corrections ~(Q^2)^k at small Q^2. | result 0.99 | 0.82 | 0.12 | asserted 1.00 |
| s2 | We present the explicit series of such terms as well as the formulae for their resummation. | contribution 0.88 | 0.93 | 0.09 | asserted 0.99 |
| s3 | These contributions are not included in the standard analysis of the experimental data. | gap 0.91 | 0.13 | 0.07 | asserted 1.00 |
| s4 | We argue that accounting for such terms can sizably change the impact of the other power corrections conventionally attributed to the higher twists. | interpretation 0.99 | 0.44 | 0.48 | hedged possibility 0.94 |
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The paper
Original abstract
We prove that regulating infrared divergencies generates power (~1/(Q^2)^k) corrections to the spin structure function g_1 at small x and large Q^2. At the same time it leads to the corrections ~(Q^2)^k at small Q^2. We present the explicit series of such terms as well as the formulae for their resummation. These contributions are not included in the standard analysis of the experimental data. We argue that accounting for such terms can sizably change the impact of the other power corrections conventionally attributed to the higher twists.
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