This title appears in the Scientific Report :
2014
Please use the identifier:
http://dx.doi.org/10.1016/j.nuclphysb.2014.01.022 in citations.
Please use the identifier: http://hdl.handle.net/2128/21256 in citations.
Chiral Ward identities, automatic improvement and the gradient flow
Chiral Ward identities, automatic improvement and the gradient flow
Non-singlet chiral Ward identities for fermionic operators at positive flow-time are derived using standard techniques based on local chiral variations of the action and of local operators. The gradient flow formalism is applied to twisted mass fermions and it is shown that automatic O(a)O(a) improv...
Saved in:
Personal Name(s): | Shindler, Andrea (Corresponding Author) |
---|---|
Contributing Institute: |
Theorie der starken Wechselwirkung; IKP-3 Theorie der Starken Wechselwirkung; IAS-4 |
Published in: |
Nuclear physics |
Imprint: |
Amsterdam
North-Holland Publ. Co.
2014
|
DOI: |
10.1016/j.nuclphysb.2014.01.022 |
Document Type: |
Journal Article |
Research Program: |
Hadron Structure and Dynamics (HSD) |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/21256 in citations.
Non-singlet chiral Ward identities for fermionic operators at positive flow-time are derived using standard techniques based on local chiral variations of the action and of local operators. The gradient flow formalism is applied to twisted mass fermions and it is shown that automatic O(a)O(a) improvement for Wilson twisted mass fermions at maximal twist is a property valid also at positive flow-time. A definition of the chiral condensate that is multiplicatively renormalizable and automatically O(a)O(a) improved is then derived. |