Nucleon axial form factors using Nf=2 twisted mass fermions with a physical value of the pion mass

被引：83

作者：

Alexandrou, C. ^{[1
,2
]}

Constantinou, M. ^{[3
]}

Hadjiyiannakou, K. ^{[2
]}

Jansen, K. ^{[4
]}

Kallidonis, C. ^{[2
]}

Koutsou, G. ^{[2
]}

Aviles-Casco, A. Vaquero ^{[5
]}

机构：

[1] Univ Cyprus, Dept Phys, POB 20537, CY-1678 Nicosia, Cyprus

[2] Cyprus Inst, Computat Based Sci & Technol Res Ctr, 20 Kavafi St, CY-2121 Nicosia, Cyprus

[3] Temple Univ, 1925 N 12th St, Philadelphia, PA 19122 USA

[4] DESY, NIC, Platanenallee 6, D-15738 Zeuthen, Germany

[5] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

来源：

PHYSICAL REVIEW D | 2017年 / 96卷 / 05期

关键词：

LATTICE QCD; NONPERTURBATIVE RENORMALIZATION; PHASE-STRUCTURE; QUARKS; DECAY;

D O I：

10.1103/PhysRevD.96.054507

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results on the nucleon axial and induced pseudoscalar form factors using an ensemble of two degenerate twisted mass clover-improved fermions with mass yielding a pion mass of m(pi) = 130 MeV. We evaluate the isovector and the isoscalar, as well as the strange and the charm axial form factors. The disconnected contributions are evaluated using recently developed methods that include deflation of the lower eigenstates, allowing us to extract the isoscalar, strange, and charm axial form factors. We find that the disconnected quark loop contributions are nonzero and particularly large for the induced pseudoscalar form factor.

引用

页数：24

共 70 条

[1] First physics results at the physical pion mass from Nf=2 Wilson twisted mass fermions at maximal twist
Abdel-Rehim, A.
Alexandrou, C.
Burger, F.
Constantinou, M.
Dimopoulos, P.
Frezzotti, R.
Hadjiyiannakou, K.
Helmes, C.
Jansen, K.
Jost, C.
Kallidonis, C.
Knippschild, B.
Kostrzewa, B.
Koutsou, G.
Liu, L.
Mangin-Brinet, M.
Ottnad, K.
Petschlies, M.
Pientka, G.
Rossi, G. C.
Urbach, C.
Wenger, U.
Werner, M.
[J]. PHYSICAL REVIEW D, 2017, 95 (09)
[2] Direct Evaluation of the Quark Content of Nucleons from Lattice QCD at the Physical Point
Abdel-Rehim, A.
Alexandrou, C.
Constantinou, M.
Hadjiyiannakou, K.
Jansen, K.
Kallidonis, Ch.
Koutsou, G.
Aviles-Casco, A. Vaquero
[J]. PHYSICAL REVIEW LETTERS, 2016, 116 (25)
[3] Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass (vol 92, 114513, 2015)
Abdel-Rehim, A.
Alexandrou, C.
Constantinou, M.
Dimopoulos, P.
Frezzotti, R.
Hadjiyiannakou, K.
Jansen, K.
Kallidonis, Ch
Kostrzewa, B.
Koutsou, G.
Mangin-Brinet, M.
Oehm, M.
Rossi, G. C.
Urbach, C.
Wenger, U.
[J]. PHYSICAL REVIEW D, 2016, 93 (03)
[4] Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass
Abdel-Rehim, A.
Alexandrou, C.
Constantinou, M.
Dimopoulos, P.
Frezzotti, R.
Hadjiyiannakou, K.
Jansen, K.
Kallidonis, Ch.
Kostrzewa, B.
Koutsou, G.
Mangin-Brinet, M.
Oehm, M.
Rossi, G. C.
Urbach, C.
Wenger, U.
[J]. PHYSICAL REVIEW D, 2015, 92 (11):
[5] Disconnected quark loop contributions to nucleon observables in lattice QCD
Abdel-Rehim, A.
Alexandrou, C.
Constantinou, M.
Drach, V.
Hadjiyiannakou, K.
Jansen, K.
Koutsou, G.
Vaquero, A.
[J]. PHYSICAL REVIEW D, 2014, 89 (03):
[6] Abdel-Rehim A., 2014, P SCI LATTICE2013, P264
[7] Measurement of the neutrino neutral-current elastic differential cross section on mineral oil at Eν ∼ 1 GeV
Aguilar-Arevalo, A. A.
Anderson, C. E.
Bazarko, A. O.
Brice, S. J.
Brown, B. C.
Bugel, L.
Cao, J.
Coney, L.
Conrad, J. M.
Cox, D. C.
Curioni, A.
Dharmapalan, R.
Djurcic, Z.
Finley, D. A.
Fleming, B. T.
Ford, R.
Garcia, F. G.
Garvey, G. T.
Grange, J.
Green, C.
Green, J. A.
Hart, T. L.
Hawker, E.
Imlay, R.
Johnson, R. A.
Karagiorgi, G.
Kasper, P.
Katori, T.
Kobilarcik, T.
Kourbanis, I.
Koutsoliotas, S.
Laird, E. M.
Linden, S. K.
Link, J. M.
Liu, Y.
Liu, Y.
Louis, W. C.
Mahn, K. B. M.
Marsh, W.
Mauger, C.
McGary, V. T.
McGregor, G.
Metcalf, W.
Meyers, P. D.
Mills, F.
Mills, G. B.
Monroe, J.
Moore, C. D.
Mousseau, J.
Nelson, R. H.
[J]. PHYSICAL REVIEW D, 2010, 82 (09):
[8] A STUDY OF THE AXIAL-VECTOR FORM-FACTOR AND 2ND-CLASS CURRENTS IN ANTINEUTRINO QUASIELASTIC SCATTERING
AHRENS, LA
ARONSON, SH
GIBBARD, BG
MURTAGH, MJ
WHITE, DH
CALLAS, JL
CUTTS, D
DIWAN, M
HOFTUN, JS
LANOU, RE
KURIHARA, Y
ABE, K
AMAKO, K
KABE, S
SHINKAWA, T
TERADA, S
NAGASHIMA, Y
SUZUKI, Y
YAMAGUCHI, Y
BEIER, EW
DURKIN, LS
HEAGY, SM
MANN, AK
HEDIN, D
MARX, MD
STERN, E
[J]. PHYSICS LETTERS B, 1988, 202 (02) : 284 - 288
[9] GLUEBALL MASSES AND STRING TENSION IN LATTICE QCD
ALBANESE, M
COSTANTINI, F
FIORENTINI, G
FLORE, F
LOMBARDO, MP
TRIPICCIONE, R
BACILIERI, P
FONTI, L
GIACOMELLI, P
REMIDDI, E
BERNASCHI, M
CABIBBO, N
MARINARI, E
PARISI, G
SALINA, G
CABASINO, S
MARZANO, F
PAOLUCCI, P
PETRARCA, S
RAPUANO, F
MARCHESINI, P
RUSACK, R
[J]. PHYSICS LETTERS B, 1987, 192 (1-2) : 163 - 169
[10] Axial nucleon and nucleon to Δ form factors and the Goldberger-Treiman relations from lattice QCD
Alexandrou, C.
Koutsou, G.
Leontiou, Th.
Negele, J. W.
Tsapalis, A.
[J]. PHYSICAL REVIEW D, 2007, 76 (09):

← 1 2 3 4 5 6 7 →