Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering

output

19972026

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2012 · hep-phShow all

10 papers · 2 filters

hep-ph2012★ 16 cited

Higgs diphoton rate enhancement from supersymmetric physics beyond the MSSM

Marcus Berg, Igor Buchberger, D. M. Ghilencea +1

We show that supersymmetric "new physics" beyond the MSSM can naturally accommodate a Higgs mass near 126 GeV and enhance the signal rate in the Higgs to diphoton channel, while th…

hep-ph2012★ 61 cited

Perturbative expansion of the QCD Adler function improved by renormalization-group summation and analytic continuation in the Borel plane

Gauhar Abbas, B. Ananthanarayan, Irinel Caprini +1

We examine the large-order behaviour of a recently proposed renormalization-group-improved expansion of the Adler function in perturbative QCD, which sums in an analytically closed…

hep-ph2012★ 10 cited

Model independent bounds on the modulus of the pion form factor on the unitarity cut below the $ω π$ threshold

B. Ananthanarayan, I. Caprini, Diganta Das +1

We calculate upper and lower bounds on the modulus of the pion electro magnetic form factor on the unitarity cut below the $ω π$ inelastic threshold, using as input the phase in the…

hep-ph2012★ 46 cited

The fine-tuning cost of the likelihood in SUSY models

D. M. Ghilencea, G. G. Ross

In SUSY models, the fine tuning of the electroweak (EW) scale with respect to their parameters gamma_i={m_0, m_{1/2}, mu_0, A_0, B_0,...} and the maximal likelihood L to fit the ex…

hep-ph2012★ 24 cited

Spacelike pion form factor from analytic continuation and the onset of perturbative QCD

B. Ananthanarayan, Irinel Caprini, I. Sentitemsu Imsong

The factorization theorem for exclusive processes in perturbative QCD predicts the behavior of the pion electromagnetic form factor $F (t)$ at asymptotic spacelike momenta $t(=-Q^2)…

hep-ph2012★ 39 cited

Tuning supersymmetric models at the LHC: A comparative analysis at two-loop level

D. M. Ghilencea, H. M. Lee, M. Park

We provide a comparative study of the fine tuning amount (Delta) at the two-loop leading log level in supersymmetric models commonly used in SUSY searches at the LHC. These are the…

hep-ph2012

The $D π$ form factors from analyticity and unitarity

B. Ananthanarayan, I. Caprini, I. Sentitemsu Imsong

We study the shape parameters of the $D π$ scalar and vector form factors using as input dispersion relations and unitarity for the moments of suitable heavy-light correlators evalu…

hep-ph2012★ 1 cited

The $K π$ form factors from Analyticity and Unitarity

Gauhar Abbas, B. Ananthanarayan, I. Caprini +1

Analyticity and unitarity techniques are employed to obtain bounds on the shape parameters of the scalar and vector form factors of semileptonic $K_{l 3}$ decays. For this purpose w…

hep-ph2012★ 4 cited

Constraining Form Factors with the Method of Unitarity Bounds

B. Ananthanarayan, Irinel Caprini

The availability of a reliable bound on an integral involving the square of the modulus of a form factor on the unitarity cut allows one to constrain the form factor at points insi…

hep-ph2012★ 41 cited

Determination of $α_{s} (M_{τ}^{2})$ from Improved Fixed Order Perturbation Theory

Gauhar Abbas, B. Ananthanarayan, Irinel Caprini

We revisit the extraction of $α_{s} (M_{τ}^{2})$ from the QCDperturbative corrections to the hadronic $τ$ branching ratio, using an improved fixed-order perturbation theory based on the e…