Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Bochicchio, Marco"'
Extending our previous work in pure Yang-Mills (YM) theory, we compute the generating functional of correlators of collinear twist-$2$ operators that enter the components of balanced superfields -- i.e., superfields with an equal number of dotted and
Externí odkaz:
http://arxiv.org/abs/2403.09617
We revisit a low-energy theorem (LET) of NSVZ type in SU($N$) QCD with $N_f$ massless quarks derived in [1] by implementing it in dimensional regularization. The LET relates $n$-point correlators in the lhs to $n+1$-point correlators with the extra i
Externí odkaz:
http://arxiv.org/abs/2402.16490
Recently, we have computed the short-distance asymptotics of the generating functional of Euclidean correlators of single-trace twist-$2$ operators in the large-$N$ expansion of SU($N$) Yang-Mills (YM) theory to the leading-nonplanar order. Remarkabl
Externí odkaz:
http://arxiv.org/abs/2401.09312
Publikováno v:
Physical Review D 108, 054023 (2023)
The generating functional $\mathcal{W}[J_{\mathcal O}]$ of Euclidean correlators of twist-$2$ operators in SU($N$) Yang-Mills theory admits the 't Hooft large-$N$ expansion: $\mathcal{W}[J_{\mathcal O}]=\mathcal{W}_{sphere}\,\,\,\,[J_{\mathcal O}]+\m
Externí odkaz:
http://arxiv.org/abs/2208.14382
We develop a new technique, based on a low-energy theorem (LET) of NSVZ type derived in arXiv:1701.07833, for the nonperturbative investigation of SU(N) QCD with N${}_f$ massless quarks - or, more generally, of massless QCD-like theories - in phases
Externí odkaz:
http://arxiv.org/abs/2201.10970
We work out the interplay between lowest-order perturbative computations in the 't Hooft coupling, $g^2=g^2_{YM} N$, operator mixing, renormalization-group (RG) improved ultraviolet (UV) asymptotics of leading-order (LO) nonplanar/planar contribution
Externí odkaz:
http://arxiv.org/abs/2105.11262
Publikováno v:
JHEP08(2021)142
We compute, to the lowest perturbative order in $SU(N)$ Yang-Mills theory, $n$-point correlators in the coordinate and momentum representation of the gauge-invariant twist-$2$ operators with maximal spin along the $p_+$ direction, both in Minkowskian
Externí odkaz:
http://arxiv.org/abs/2104.13163
Autor:
Becchetti, Matteo, Bochicchio, Marco
Recently, a geometric approach to operator mixing in massless QCD-like theories -- that involves canonical forms based on the Poincare'-Dulac theorem for the linear system that defines the renormalized mixing matrix in the coordinate representation $
Externí odkaz:
http://arxiv.org/abs/2103.16220
Autor:
Bochicchio, Marco
Publikováno v:
Eur. Phys. J. C (2021) 81:749
We revisit the operator mixing in massless QCD-like theories. In particular, we address the problem of determining under which conditions a renormalization scheme exists where the renormalized mixing matrix in the coordinate representation, $Z(x, \mu
Externí odkaz:
http://arxiv.org/abs/2103.15527
Autor:
Becchetti, Matteo, Bochicchio, Marco
Publikováno v:
JHEP 03 (2019) 088
We verify, both perturbatively and nonperturbatively asymptotically in the ultraviolet (UV), a special case of a low-energy theorem of the NSVZ type in QCD-like theories, recently derived in arXiv:1701.07833, that relates the logarithmic derivative w
Externí odkaz:
http://arxiv.org/abs/1810.08527