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Showing 2009 · hep-phShow all

44 papers · 2 filters

hep-ph2009★ 356 cited

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

S. Actis, A. Arbuzov, G. Balossini +53

We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing,…

hep-ph2009★ 2 cited

One-loop correction effects on supernova neutrino fluxes: a new possible probe for Beyond Standard Models

J. Gava, C. -C. Jean-Louis

We present the consequences of a large radiative correction term coming from Supersymmetry (SUSY) upon the electron neutrino fluxes streaming off a core- collapse supernova using a…

hep-ph2009★ 28 cited

Dark matter detection in the BMSSM

Nicolas Bernal, Andreas Goudelis

The addition of non-renormalizable terms involving the Higgs fields to the MSSM (BMSSM) ameliorates the little hierarchy problem of the MSSM. For neutralino dark matter, new region…

hep-ph2009★ 13 cited

Extracting CP violation and strong phase in D decays by using quantum correlations in psi(3770)-> D0\bar{D}0 -> (V1V2)(V3V4) and psi(3770)->D0\bar{D}0 -> (V1V2)(K pi)

J. Charles, S. Descotes-Genon, X. -W. Kang +2

The charm quark offers interesting opportunities to cross-check the mechanism of CP violation precisely tested in the strange and beauty sectors. In this paper, we exploit the angu…

hep-ph2009

Search for CP violation in the lepton sector

Cristina Volpe

One of the major open issues in neutrino physics is the possible existence of CP violation in the neutrino sector. Such an observation would have an important impact in various dom…

hep-ph2009★ 5 cited

Transversity Generalized Parton Distributions from gamma N -> pi rhot N' with a Large pi rhot Invariant Mass

M. El Beiyad, B. Pire, M. Segond +2

The chiral-odd transversity generalized parton distributions of the nucleon can be accessed experimentally through the exclusive photoproduction process gamma N -> pi rhoT N', with…

hep-ph2009★ 117 cited

tau -> pi pi pi nu_tau decays and the a_1(1260) off-shell width revisited

D. Gomez Dumm, P. Roig, A. Pich +1

The tau -> pi pi pi nu_tau decay is driven by the hadronization of the axial-vector current. Within the resonance chiral theory, and considering the large-Nc expansion, this proces…

hep-ph2009★ 7 cited

Dark matter and neutrino masses in the R-parity violating NMSSM

C. -C. Jean-Louis, G. Moreau

The R-Parity symmetry Violating (RPV) version of the Next-to-Minimal Supersymmetric Standard Model (NMSSM) is attractive simultaneously with regard to the so-called mu-problem and…

hep-ph2009★ 74 cited

Hadron structure in tau -> KKpi nu_tau decays

D. Gomez Dumm, P. Roig, A. Pich +1

We analyse the hadronization structure of both vector and axial-vector currents leading to tau -> KKpi nu_tau decays. At leading order in the 1/Nc expansion, and considering only t…

hep-ph2009★ 6 cited

Soft photons in semileptonic B \to D decays

Damir Becirevic, Nejc Kosnik

Determination of V_cb in exclusive semileptonic decays is crucial consistency check against the V_cb determined inclusively. Anticipated precision of V_cb at the Super Flavor facto…

hep-ph2009★ 37 cited

Effective continuum threshold for vacuum-to-bound-state correlators

Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian +1

We formulate a new algorithm for obtaining the effective continuum threshold in vacuum-to-bound-state correlators - the basic objects for the calculation of hadron form factors in…

hep-ph2009★ 997 cited

The Next-to-Minimal Supersymmetric Standard Model

Ulrich Ellwanger, Cyril Hugonie, Ana M. Teixeira

We review the theoretical and phenomenological aspects of the Next-to-Minimal Supersymmetric Standard Model: the Higgs sector including radiative corrections and the 2-loop beta-fu…

hep-ph2009★ 56 cited

MSSM Higgs with dimension-six operators

I. Antoniadis, E. Dudas, D. M. Ghilencea +1

We investigate an extension of the MSSM Higgs sector by including the effects of all dimension-five and dimension-six effective operators and their associated supersymmetry breakin…

hep-ph2009

ray line generated by the Green-Schwarz mechanism

Y. Mambrini

We study the phenomenology of a extension of the Standard Model where the SM particles are not charged under the new abelian group. The Green-Schwarz mechanism insures tha…

hep-ph2009★ 32 cited

Higgs boson phenomenology and VEV shift in the RS scenario

Charles Bouchart, Gregory Moreau

In the framework of warped extra dimension models addressing the gauge hierarchy problem, we consider the Randall-Sundrum (RS) scenario under the usual hypothesis of a bulk custodi…

hep-ph2009★ 1 cited

Pomeron Odderon interference in production of two pi+ pi- pairs at LHC and ILC

B. Pire, F. Schwennsen, L. Szymanowski +1

We propose to look for the Odderon through the production of two pion pairs in photon collisions at high energies. We calculate the corresponding matrix elements in kT-factorizatio…

hep-ph2009★ 60 cited

From the LHC to Future Colliders

A. De Roeck, J. Ellis, C. Grojean +61

Discoveries at the LHC will soon set the physics agenda for future colliders. This report of a CERN Theory Institute includes the summaries of Working Groups that reviewed the phys…

hep-ph2009★ 12 cited

Gribov's horizon and the ghost dressing function

Ph. Boucaud, J. P. Leroy, A. Le Yaouanc +3

We study a relation recently derived by K. Kondo at zero momentum between the Zwanziger's horizon function, the ghost dressing function and Kugo's functions and . We agree w…

hep-ph2009★ 81 cited

QCD factorization of exclusive processes beyond leading twist: gamma*T -> rhoT impact factor with twist three accuracy

I. V. Anikin, D. Yu. Ivanov, B. Pire +2

We describe a consistent approach to factorization of scattering amplitudes for exclusive processes beyond the leading twist approximation. The method involves the Taylor expansion…

hep-ph2009★ 67 cited

Antimatter signals of singlet scalar dark matter

A. Goudelis, Y. Mambrini, C. Yaguna

We consider the singlet scalar model of dark matter and study the expected antiproton and positron signals from dark matter annihilations. The regions of the viable parameter space…

hep-ph2009★ 42 cited

Bottomonium spectroscopy with mixing of eta_b states and a light CP-odd Higgs

Florian Domingo, Ulrich Ellwanger, Miguel-Angel Sanchis-Lozano

The mass of the eta_b(1S), measured recently by BABAR, is significantly lower than expected from QCD predictions for the Upsilon(1S) - eta_b(1S) hyperfine splitting. We suggest tha…

hep-ph2009★ 178 cited

Reevaluation of the hadronic contribution to the muon magnetic anomaly using new e+e- -> pi+pi- cross section data from BABAR

M. Davier, A. Hoecker, B. Malaescu +2

Using recently published, high-precision pi+pi- cross section data by the BABAR experiment from the analysis of e+e- events with high-energy photon radiation in the initial state,…

hep-ph2009★ 103 cited

An Improved Standard Model Prediction Of BR(B -> tau nu) And Its Implications For New Physics

UTfit Collaboration, M. Bona, M. Ciuchini +11

The recently measured B -> tau nu branching ratio allows to test the Standard Model by probing virtual effects of new heavy particles, such as a charged Higgs boson. The accuracy o…

hep-ph2009★ 6 cited

Gravitino dark matter in hybrid gauge-gravity models

D. G. Cerdeno, Y. Mambrini, A. Romagnoni

We study the phenomenology of generic supergravity models in which gravity mediation naturally competes with gauge mediation as the origin of supergravity-breaking. This class of h…