Quenched lattice calculation of semileptonic heavy-light meson form factors

被引：26
作者：
de Divitiis, Giulia Maria [1 ]
Petronzio, Roberto
Tantalo, Nazario
机构：
[1] Univ Roma Tor Vergata, Via Ric Sci 1, I-00133 Rome, Italy
[2] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy
[3] Ctr Ric, I-00184 Rome, Italy
[4] Studi E Fermi, I-00184 Rome, Italy
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 10期
关键词：
quark masses and SM parameters; heavy quark physics; lattice QCD; weak decays;
D O I：
10.1088/1126-6708/2007/10/062
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We calculate, in the continuum limit of quenched lattice QCD, the matrix elements of the heavy-heavy vector current between heavy-light pseudoscalar meson states. We present the form factors for different values of the initial and final meson masses at finite momentum transfer. In particular, we calculate the non-perturbative correction to the differential decay rate of the process B -> Dlv including the case of a non-vanishing lepton mass.
引用
收藏
页数：21
相关论文
共 32 条
[1]  
AUBERT B, ARXIV07072758, P36004
[2]   Aharonov-Bohm effect and nucleon-nucleon phase shifts on the lattice [J].
Bedaque, PE .
PHYSICS LETTERS B, 2004, 593 :82-88
[3]   Semi-leptonic decays of heavy mesons and the Isgur-Wise function in quenched lattice QCD [J].
Bowler, KC ;
Douglas, G ;
Kenway, RD ;
Lacagnina, GN ;
Maynard, CM .
NUCLEAR PHYSICS B, 2002, 637 (1-3) :293-310
[4]   UNITARY SYMMETRY AND LEPTONIC DECAYS [J].
CABIBBO, N .
PHYSICAL REVIEW LETTERS, 1963, 10 (12) :531-&
[5]   Non-perturbative quark mass renormalization in quenched lattice QCD [J].
Capitani, S ;
Lüscher, M ;
Sommer, R ;
Wittig, H .
NUCLEAR PHYSICS B, 1999, 544 (03) :669-698
[6]  
Chen CH, 2006, J HIGH ENERGY PHYS
[7]   Quenched lattice calculation of the B → Dlv decay rate [J].
de Divitiis, G. M. ;
Molinaro, E. ;
Petronzio, R. ;
Tantalo, N. .
PHYSICS LETTERS B, 2007, 655 (1-2) :45-49
[8]   On the discretization of physical momenta in lattice QCD [J].
de Divitiis, GM ;
Petronzio, R ;
Tantalo, N .
PHYSICS LETTERS B, 2004, 595 :408-413
[9]   Heavy quark masses in the continuum limit of quenched lattice QCD [J].
de Divitiis, GM ;
Guagnelli, M ;
Palombi, F ;
Petronzio, R ;
Tantalo, N .
NUCLEAR PHYSICS B, 2003, 675 (1-2) :309-332
[10]   Heavy-light decay constants in the continuum limit of quenched lattice QCD [J].
de Divitiis, GM ;
Guagnelli, M ;
Palombi, F ;
Petronzio, R ;
Tantalo, N .
NUCLEAR PHYSICS B, 2003, 672 (1-2) :372-386
1234