Precision Rosenbluth measurement of the proton elastic form factors

被引：261

作者：

Qattan, IA ^{[1
]}

Arrington, J

Segel, RE

Zheng, X

Aniol, K

Baker, OK

Beams, R

Brash, EJ

Calarco, J

Camsonne, A

Chen, JP

Christy, ME

Dutta, D

Ent, R

Frullani, S

Gaskell, D

Gayou, O

Gilman, R

Glashausser, C

Hafidi, K

Hansen, JO

Higinbotham, DW

Hinton, W

Holt, RJ

Huber, GM

Ibrahim, H

Jisonna, L

Jones, MK

Keppel, CE

Kinney, E

Kumbartzki, GJ

Lung, A

Margaziotis, DJ

McCormick, K

Meekins, D

Michaels, R

Monaghan, P

Moussiegt, P

Pentchev, L

Perdrisat, C

Punjabi, V

Ransome, R

Reinhold, J

Reitz, B

Saha, A

Sarty, A

Schulte, EC

Slifer, K

Solvignon, P

Sulkosky, V

机构：

[1] Northwestern Univ, Evanston, IL 60208 USA

[2] Argonne Natl Lab, Argonne, IL 60439 USA

[3] Calif State Univ Los Angeles, Los Angeles, CA 90032 USA

[4] Hampton Univ, Hampton, VA 23668 USA

[5] Univ Regina, Regina, SK S4S 0A2, Canada

[6] Univ New Hampshire, Durham, NH 03824 USA

[7] Univ Blaise Pascal Clermont Ferrand, Aubiere, France

[8] CNRS IN2P3, Aubiere, France

[9] Jefferson Lab, Newport News, VA 23606 USA

[10] MIT, Cambridge, MA 02139 USA

[11] Ist Nazl Fis Nucl, Sez Sanita, I-00161 Rome, Italy

[12] Univ Colorado, Boulder, CO 80309 USA

[13] Coll William & Mary, Williamsburg, VA 23187 USA

[14] Rutgers State Univ, Piscataway, NJ 08855 USA

[15] Old Dominion Univ, Norfolk, VA 23529 USA

[16] Lab Phys Subatom & Cosmol, F-38026 Grenoble, France

[17] Norfolk State Univ, Norfolk, VA 23529 USA

[18] Florida Int Univ, Miami, FL 33199 USA

[19] St Marys Univ, Halifax, NS B3H 3C3, Canada

[20] Temple Univ, Philadelphia, PA 19122 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 14期

基金：

美国国家科学基金会;

关键词：

15;

D O I：

10.1103/PhysRevLett.94.142301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the results of a new Rosenbluth measurement of the proton electromagnetic form factors at Q(2) 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)approximate to 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.

引用

页码：1 / 5

页数：5

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