Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

Calculation of the pion charge radius from an improved model-independent method

Aug 12, 2022, 3:30 PM
CP1-HSZ/0.010 (CP1-HSZ) - HS2 (CP1-HSZ)

CP1-HSZ/0.010 (CP1-HSZ) - HS2


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Oral Presentation Hadron Structure Hadron Structure


Kohei Sato (University of Tsukuba)


We investigate an improved analysis method of the recently-proposed model-independent method to obtain the pion charge radius from the electromagnetic pion three-point function. We discuss a systematic error of the original method in small volume, and propose an improvement to reduce it. Using the $N_f = 2+1$ lattice QCD data at $m_\pi = 0.51$ GeV, we compare the result of the pion charge radius from our improved method with the ones from the original method, and also from a traditional model-dependent method.

Primary author

Kohei Sato (University of Tsukuba)


Dr Hiromasa Watanabe (KEK) Takeshi Yamazaki (University of Tsukuba)

Presentation materials