1.

Infrared features of gravitational scattering and radiation in the eikonal approach
/ Ciafaloni, Marcello ; Colferai, Dimitri ; Veneziano, Gabriele
Following a semiclassical eikonal approach—justified at transplanckian energies order by order in the deflection angle ${\Theta}_{s}\sim \frac{4G\sqrt{s}}{b}\equiv \frac{2R}{b}$—we investigate the infrared features of gravitational scattering and radiation in four spacetime dimensions, and we illustrate the factorization and cancellation of the infinite Coulomb phase for scattering and the eikonal resummation for radiation. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.066008
arXiv:1812.08137
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2.

Stringy blackhole gas in ${\alpha}^{\prime}$corrected dilaton gravity
/ Quintin, Jerome ; Brandenberger, Robert H. ; Gasperini, Maurizio ; Veneziano, Gabriele
We discuss the properties of the gas of primordial “stringy” black holes possibly formed in the highcurvature phase preceding the bouncing transition to the phase of standard cosmological evolution. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.103519
arXiv:1809.01658
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3.

Spontaneous CP breaking in QCD and the axion potential: an effective Lagrangian approach
/ Vecchia, Paolo ; Rossi, Giancarlo ; Veneziano, Gabriele ; Yankielowicz, Shimon
Using the wellknown lowenergy effective Lagrangian of QCD — valid for small (nonvanishing) quark masses and a large number of colors — we study in detail the regions of parameter space where CP is spontaneously broken/unbroken for a vacuum angle θ = π . [...]
Published in JHEP 1712 (2017) 104
10.1007/JHEP12(2017)104
arXiv:1709.00731
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4.

Glimpses of black hole formation/evaporation in highly inelastic, ultraplanckian string collisions
/ Addazi, Andrea ; Bianchi, Massimo ; Veneziano, Gabriele
We revisit possible glimpses of blackhole formation by looking at ultraplanckian stringstring collisions at very high finalstate multiplicity. [...]
Published in JHEP 1702 (2017) 111
10.1007/JHEP02(2017)111
arXiv:1611.03643
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5.

A microscopic description of absorption in highenergy stringbrane collisions
/ D’Appollonio, Giuseppe ; Vecchia, Paolo ; Russo, Rodolfo ; Veneziano, Gabriele
We study the collision of a highly energetic light closed string off a stack of D p branes at (sub)stringscale impact parameters and in a regime justifying a perturbative treatment. [...]
Published in JHEP 1603 (2016) 030
10.1007/JHEP03(2016)030
arXiv:1510.03837
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6.

Regge behavior saves string theory from causality violations
/ D’Appollonio, Giuseppe ; Vecchia, Paolo ; Russo, Rodolfo ; Veneziano, Gabriele
Higherderivative corrections to the EinsteinHilbert action are present in bosonic string theory leading to the potential causality violations recently pointed out by Camanho et al. [...]
Published in JHEP 1505 (2015) 144
10.1007/JHEP05(2015)144
arXiv:1502.01254
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7.

The quark condensate in multiflavour QCD – planar equivalence confronting lattice simulations
/ Armoni, Adi ; Shifman, Mikhail ; Shore, Graham ; Veneziano, Gabriele
Planar equivalence between the large N limits of N=1 Super Yang–Mills (SYM) theory and a variant of QCD with fermions in the antisymmetric representation is a powerful tool to obtain analytic nonperturbative results in QCD itself. [...]
Published in Physics letters B 741 (2015) 184189
10.1016/j.physletb.2014.12.035
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