Lattice computations of the pion form factor

被引：54

作者：

Bonnet, FDR ^{[1
]}

Edwards, RG

Fleming, GT

Lewis, R

Richards, DG

机构：

[1] Univ Regina, Dept Phys, Regina, SK S4S 0A2, Canada

[2] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[3] Yale Univ, Sloane Phys Lab, New Haven, CT 06520 USA

来源：

PHYSICAL REVIEW D | 2005年 / 72卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.72.054506

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present results computed with domain-wall valence fermions on MILC ASQTAD lattices, as well as with Wilson fermions on quenched lattices. We find that the full-QCD form factor is well described by a VMD picture, with the pole mass in the chiral limit m(VMD)=0.868(65) GeV. However, the quenched Wilson fermion results are suggestive of large scaling violations.

引用

页数：9

共 55 条

[1] Pion form factor with twisted mass QCD [J].

Abdel-Rehim, AM ;

Lewis, R .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2005, 140 :299-301

[2] Twisted mass QCD for the pion electromagnetic form factor [J].

Abdel-Rehim, AM ;

Lewis, R .

PHYSICAL REVIEW D, 2005, 71 (01) :014503-1

[3] A MEASUREMENT OF THE SPACE-LIKE PION ELECTROMAGNETIC FORM-FACTOR [J].

AMENDOLIA, SR ;

ARIK, M ;

BADELEK, B ;

BATIGNANI, G ;

BECK, GA ;

BEDESCHI, F ;

BELLAMY, EH ;

BERTOLUCCI, E ;

BETTONI, D ;

BILOKON, H ;

BOLOGNA, G ;

BOSISIO, L ;

BRADASCHIA, C ;

BUDINICH, M ;

CODINO, A ;

DELLORSO, M ;

PIAZZOLI, BD ;

ENORINI, M ;

FABBRI, FL ;

FIDECARO, F ;

FOA, L ;

FOCARDI, E ;

FRANK, SGF ;

GIAZOTTO, A ;

GIORGI, MA ;

GREEN, MG ;

HARVEY, J ;

HEATH, GP ;

LANDON, MPJ ;

LAURELLI, P ;

LIELLO, F ;

MANNOCCHI, G ;

MARCH, PV ;

MARROCCHESI, PS ;

MENZIONE, A ;

MERONI, E ;

MORONI, L ;

MILOTTI, E ;

PICCHI, P ;

RAGUSA, F ;

RISTORI, L ;

ROLANDI, L ;

SALA, S ;

SALTMARSH, CG ;

SAOUCHA, A ;

SATTA, L ;

SCRIBANO, A ;

SPILLANTINI, P ;

STEFANINI, A ;

STOREY, D .

NUCLEAR PHYSICS B, 1986, 277 (01) :168-196

[4] Light hadrons with improved staggered quarks: Approaching the continuum limit [J].

Aubin, C ;

Bernard, C ;

DeTar, C ;

Osborn, J ;

Gottlieb, S ;

Gregory, EB ;

Toussaint, D ;

Heller, UM ;

Hetrick, JE ;

Sugar, R .

PHYSICAL REVIEW D, 2004, 70 (09)

[5] Pion form factor in QCD: From nonlocal condensates to next-to-leading-order analytic perturbation theory [J].

Bakulev, AP ;

Passek-Kumericki, K ;

Schroers, W ;

Stefanis, NG .

PHYSICAL REVIEW D, 2004, 70 (03) :033014-1

[6] Baryonic sources using irreducible representations of the double-covered octahedral group [J].

Basak, S ;

Edwards, R ;

Fiebig, R ;

Fleming, GT ;

Heller, UM ;

Morningstar, C ;

Richards, D ;

Sato, I ;

Wallace, S .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2005, 140 :281-283

[7] Group-theoretical construction of extended baryon operators [J].

Basak, S ;

Edwards, R ;

Fiebig, R ;

Fleming, GT ;

Heller, UM ;

Morningstar, C ;

Richards, D ;

Sato, I ;

Wallace, S .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2005, 140 :287-289

[8] Mass spectrum of N* and source optimization [J].

Basak, S ;

Edwards, R ;

Fiebig, R ;

Fleming, G ;

Heller, UM ;

Morningstar, C ;

Richards, D ;

Sato, I ;

Wallace, S .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2004, 129 :209-211

[9]

Basak S, 2004, NUCL PHYS B-PROC SUP, V128, P186, DOI [10.1016/S0920-5632(03)02476-9, 10.1016/j.nuclphysbps.2003.12.070]

[10] ELECTROPRODUCTION OF SINGLE PIONS AT LOW EPSILON AND A MEASUREMENT OF PION FORM-FACTOR UP TO Q2 = 10 GEV2 [J].

BEBEK, CJ ;

BROWN, CN ;

HOLMES, SD ;

KLINE, RV ;

PIPKIN, FM ;

RAITHER, S ;

SISTERSON, LK ;

BROWMAN, A ;

HANSON, KM ;

LARSON, D ;

SILVERMAN, A .

PHYSICAL REVIEW D, 1978, 17 (07) :1693-1705

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