The 2009 Europhysics Conference on High Energy Physics

Session

VII. Unified Theories, Strings, Non-perturbative QFT

UTS

Jul 17, 2009, 4:30 PM

Auditorium Maximum (Kraków, Poland)

21. Measurement of the Transverse Polarization of Electrons Emitted in Free Neutron Decay

Dr Adam Kozela (Instytut Fizyki Jądrowej PAN)

7/17/09, 4:30 PM

Unified Theories, Strings, Non-perturbative QFT

Both components of the transverse electron polarization emitted in the beta decay of polarized, free neutron have been measured at cold neutron spallation source SINQ (PSI, Villigen). The T-odd, P-odd correlation coefficient associated with polarization component perpendicular to the neutron polarization and electron momentum, was found to be R= 0.008+/-0.015. This value is consistent...

43. Measurement of the $D^0\to \phi \eta$, $D^0 \to \omega \eta$ and $D^0 \to K^* \eta$ Branching Fractions

Dr Amir Rahimi (OSU)

7/17/09, 4:45 PM

Unified Theories, Strings, Non-perturbative QFT

We present updates on the searches for three $D^0 \to V \eta$ decays, where the $D^0$ comes from the decay $D^{*+}\to D^0 \pi^+$ and $V$ is a $\phi$, $\omega$ or $K^*$ vector meson. These results use a 467~fb$^{-1}$ data sample collected with the {\sl B{\scriptsize A}B{\scriptsize AR}} detector at SLAC.

44. Search for the rare decay $D^{0} \rightarrow \gamma \gamma$ and improved measurement of $D^{0} \rightarrow \pi^{0} \pi^{0}$

James Morris (The Ohio State University)

7/17/09, 5:00 PM

Unified Theories, Strings, Non-perturbative QFT

We present preliminary results of the search for the doubly-radiative decay $D^{0} \rightarrow \gamma \gamma$ and the measurement of the branching fraction of its associated background $D^{0} \rightarrow \pi^{0}\pi^{0}$ in a data sample corresponding to an integrated luminosity of ~470fb$^{-1}$ collected with the BaBar detector at the PEP-II asymmetric $e^{+} e^{-}$ collider at SLAC. ...

49. Anomalous WW gamma quartic and trilinear coupling in photon-induced processes using forward detectors at the LHC

Dr Christophe Royon (IRFU-SPP, CEA Saclay)

7/17/09, 5:15 PM

Unified Theories, Strings, Non-perturbative QFT

We present a new method to test the Standard Model expectations at the LHC using photon-induced WW production. Both W decay in the main ATLAS or CMS detectors while scattered protons are measured in forward detectors. The sensitivity to anomalous WW gamma quartic and triple gauge coupling can be improved respectively by more than three orders of magnitude or a factor 30 compared to the...

9. Understanding the structure of the proton: From HERA and Tevatron to LHC

Dr laurent schoeffel (CEA Saclay)

7/17/09, 5:30 PM

Unified Theories, Strings, Non-perturbative QFT

We discuss the perspectives concerning a better determination of the proton structure in terms of quarks and gluons at LHC after describing the results coming from HERA and Tevatron. In a second part of the review, we describe the diffractive phenomena at HERA and Tevatron and the consequences for LHC. The focus will be given on perspectives for LHC, essentially on early measurements that...

966. Reconstruction of the primordial power spectrum using multiple data sets

Dr Paul Hunt (University of Warsaw)

7/17/09, 5:45 PM

Unified Theories, Strings, Non-perturbative QFT

The primordial power spectrum is important both for cosmological parameter estimation and for distinguishing between models of inflation. Many cosmological observables which probe inhomogenities are related to the power spectrum by a convolution with a transfer function. We show how two different deconvolution techniques, Tikhonov regularisation and the Backus-Gilbert method, can be used to...

754. String Phenomenology

Dr Joseph Conlon (Oxford University)

7/17/09, 6:00 PM

Unified Theories, Strings, Non-perturbative QFT

I discuss string phenomenology, gauge threshold corrections and LARGE volume models. I describe scenarios for moduli stabilisation and supersymmetry breaking.