Details

Autor(en) / Beteiligte

• QATTAN, I. A
• ARRINGTON, J
• CHEN, J.-P
• CHRISTY, M. E
• DUTTA, D
• ENT, R
• FRULLANI, S
• GASKELL, D
• GAYOU, O
• GILMAN, R
• GLASHAUSSER, C
• HAFIDI, K
• SEGEL, R. E
• HANSEN, J.-O
• HIGINBOTHAM, D. W
• HINTON, W
• HOLT, R. J
• HUBER, G. M
• IBRAHIM, H
• JISONNA, L
• JONES, M. K
• KEPPEL, C. E
• KINNEY, E
• ZHENG, X
• KUMBARTZKI, G. J
• LUNG, A
• MARGAZIOTIS, D. J
• MCCORMICK, K
• MEEKINS, D
• MICHAELS, R
• MONAGHAN, P
• MOUSSIEGT, P
• PENTCHEV, L
• PERDRISAT, C
• ANIOL, K
• PUNJABI, V
• RANSOME, R
• REINHOLD, J
• REITZ, B
• SAHA, A
• SARTY, A
• SCHULTE, E. C
• SLIFER, K
• SOLVIGNON, P
• SULKOSKY, V
• BAKER, O. K
• WIJESOORIYA, K
• ZEIDMAN, B
• BEAMS, R
• BRASH, E. J
• CALARCO, J
• CAMSONNE, A

Titel

Precision rosenbluth measurement of the proton elastic form factors

Ist Teil von

• Physical review letters, 2005-04, Vol.94 (14), p.142301.1-142301.5, Article 142301

Ort / Verlag

Ridge, NY: American Physical Society

Erscheinungsjahr

2005

Quelle

American Physical Society

Beschreibungen/Notizen

• We report the results of a new Rosenbluth measurement of the proton electromagnetic form factors at Q2 values of 2.64, 3.20, and 4.10 GeV2. Cross sections were determined by detecting the recoiling proton, in contrast to previous measurements which detected the scattered electron. Cross sections were determined to 3%, with relative uncertainties below 1%. The ratio mu(p)G(E)/G(M) was determined to 4%-8% and showed mu(p)G(E)/G(M) approximately 1. These results are consistent with, and much more precise than, previous Rosenbluth extractions. They are inconsistent with recent polarization transfer measurements of similar precision, implying a systematic difference between the techniques.