Measurement of the charged pion electromagnetic form factor

被引：294

作者：

Volmer, J

Abbott, D

Anklin, H

Armstrong, C

Arrington, J

Assamagan, K

Avery, S

Baker, OK

Blok, HP

Bochna, C

Brash, EJ

Breuer, H

Chant, N

Dunne, J

Eden, T

Ent, R

Gaskell, D

Gilman, R

Gustafsson, K

Hinton, W

Huber, GM

Jackson, H

Jones, MK

Keppel, C

Kim, PH

Kim, W

Klein, A

Koltenuk, D

Liang, M

Lolos, GJ

Lung, A

Mack, DJ

McKee, D

Meekins, D

Mitchell, J

Mkrtchyan, H

Mueller, B

Niculescu, G

Niculescu, I

Pitz, D

Potterveld, D

Qin, LM

Reinhold, J

Shin, IK

Stepanyan, S

Tadevosyan, V

Tang, LG

van der Meer, RLJ

Vansyoc, K

Van Westrum, D

机构：

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

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

[3] Univ Colorado, Boulder, CO 80309 USA

[4] Florida Int Univ, Miami, FL 33119 USA

[5] Hampton Univ, Hampton, VA 23668 USA

[6] Univ Illinois, Urbana, IL 61801 USA

[7] Kyungpook Natl Univ, Taegu 702701, South Korea

[8] Univ Maryland, College Pk, MD 20742 USA

[9] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA

[10] MIT, Dept Phys, Cambridge, MA 02139 USA

[11] New Mexico State Univ, Las Cruces, NM 88003 USA

[12] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

[13] Norfolk State Univ, Norfolk, VA 23504 USA

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

[15] Oregon State Univ, Corvallis, OR 97331 USA

[16] Univ Penn, Philadelphia, PA 19104 USA

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

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

[19] CEA Saclay, SPhN, DAPNIA, F-91191 Gif Sur Yvette, France

[20] TJNAF, Div Phys, Newport News, VA 23606 USA

[21] Univ Virginia, Charlottesville, VA 22901 USA

[22] Vrije Univ Amsterdam, Fac Nat Sterrenkunde, NL-1081 HV Amsterdam, Netherlands

[23] Yerevan Phys Inst, Yerevan 375036, Armenia

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.86.1713

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Separated longitudinal and transverse structure functions for the reaction H-1(e,e(1)pi (+))n were measured in the momentum transfer region Q(2) = 0.6-1.6 (GeV/c)(2) at a value of the invariant mass W = 1.95 GeV. New values for the pion charge form factor were extracted from the longitudinal cross section by using a recently developed Regge model. The results indicate that the pion form factor in this region is larger than previously assumed and is consistent with a monopole parametrization fitted to very low Q(2) elastic data.

引用

页码：1713 / 1716

页数：4

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