Coherent π0 threshold production from the deuteron at Q2=0.1 GeV2/c2

被引：13

作者：

Ewald, I

Bartsch, P

Baumann, D

Bermuth, J

Bernstein, AM

Bohinc, K

Böhm, R

Clawiter, N

Derber, S

Ding, M

Distler, MO

Friedrich, J

Friedrich, JM

Kahrau, M

Kohl, M

Kozlov, A

Krygier, KW

Liesenfeld, A

Merkel, H ^{[1
]}

Merle, P

Müller, U

Neuhausen, R

Pavan, M

Pospischil, T

Potokar, M

Rohe, D

Rosner, G

Schmieden, H

Sirca, S

Wagner, A

Walcher, T

Weis, M

机构：

[1] Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany

[2] Univ Mainz, Inst Phys, D-55099 Mainz, Germany

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

[4] Jozef Stefan Inst, SI-1001 Ljubljana, Slovenia

[5] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[6] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia

来源：

PHYSICS LETTERS B | 2001年 / 499卷 / 3-4期

关键词：

pion electroproduction; threshold production; deuteron;

D O I：

10.1016/S0370-2693(00)01396-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

First data on coherent threshold pi (0) electroproduction from the deuteron taken by the Al Collaboration at the Mainz Microtron MAMI are presented. At a four-momentum transfer of q(2) = -0.1GeV(2)/c(2) the full solid angle was covered up to a center-of-mass energy of 4 MeV above threshold, By means of a Rosenbluth separation the longitudinal threshold s wave multipole and an upper limit for the transverse threshold s wave multipole could be extracted and compared to predictions of Heavy Baryon Chiral Perturbation Theory. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：238 / 244

页数：7

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