Wed·Jul 20, 2011Wednesday·July 20, 2011

1. 01*

   New measurements of high-momentum nucleons and short-range structures in nuclei

   N. Fomin · J. Arrington · R. Asaturyan · F. Benmokhtar · W. Boeglin · P. Bosted · A. Bruell · M. H. S. Bukhari · E. Chudakov · B. Clasie · S. H. Connell · M. M. Dalton and 54 other authors

   We present new measurements of electron scattering from high-momentum nucleons in nuclei. These data allow an improved determination of the strength of two-nucleon correlations for several nuclei, including light nuclei where clustering effects can, for the first time, be examined. The data also include the kinematic region where three-nucleon correlations are expected to dominate.

   nucl-exPRL(2012)·236 citations
2. 02*

   About the importance of the nuclear recoil in \alpha emission near the DNA

   E. Lodi Rizzini🇮🇹 · A. Bianconi🇮🇹 · M. Corradini🇮🇹 · M.Leali🇮🇹 · V. Mascagna🇮🇹 · L. Venturelli🇮🇹 · N. Zurlo🇮🇹

   The effect of the energy deposition inside the human body made by radioactive substances is discussed. For the first time, we stress the importance of the recoiling nucleus in such reactions, particularly concerning the damage caused on the DNA structure.

   nucl-exphysics.bio-ph0 citations
3. 03*

   Low-mass dilepton production through transport process in quark-gluon plasma

   Yukinao Akamatsu🇯🇵 · Hideki Hamagaki🇯🇵 · Tetsuo Hatsuda🇯🇵 · Tetsufumi Hirano🇯🇵

   We attempt to understand the low-mass dielectron enhancement observed by PHENIX Collaboration at Relativistic Heavy Ion Collider (RHIC) by transport peak in the spectral function. On the basis of the second-order formalism of relativistic dissipative hydrodynamics, we parameterize the spectral function in low-frequency and long-wavelength region by two transport coefficients, electric diffusion coefficient $D$ and relaxation time ${\tau }_{\mathrm{J}}$, and compared our theoretical dielectron spectra with the experimental data. We study spectrum of dielectrons produced in relativistic heavy ion collisions by using the profile of matter evolution under full (3+1)-dimensional hydrodynamics. We find that the experimental data require the diffusion coefficient to be $D\ge 2/T$, with $T$ being temperature. Our analysis shows that dielectrons emitted through transport process mainly come from high-temperature QGP phase.

   ↳ nucl-thhep-phnucl-exPRC(2012)·8 citations
4. 04*

   Neutron EDM in Four Generation Standard Model

   Junji Hisano🇯🇵 · Wei-Shu Hou🇹🇼 · Fanrong Xu🇹🇼

   A fourth generation of quarks, if it exist, may provide sufficient CP violation for the baryon asymmetry of the Universe. We estimate the neutron electric dipole moment in the presence of a fourth generation, and find it would be dominated by the strange quark chromoelectric dipole moment, assuming it does not get wiped out by a Peccei-Quinn symmetry. Both the three electroweak loop and the two-loop electroweak/one-loop gluonic contributions are considered. With m_{b'}, m_{t'} at 500 GeV or so that can be covered at the LHC, and with a Jarlskog CPV factor that is consistent with hints of New Physics in b to s transitions, the neutron EDM is found around 10^{-31}e cm, still far below the 10^{-28}e cm reach of the new experiments being planned or under construction.

   ↳ hep-phnucl-exPRD(2011)·3 citations
5. 05*

   Entanglement of Quasielastic Scattering and Pion Production

   Ulrich Mosel🇩🇪 · Olga Lalakulich🇩🇪 · Tina Leitner🇩🇪

   The extraction of neutrino oscillation parameters requires the determination of the neutrino energy from observations of the hadronic final state. Here we discuss the difficulties connected with this energy reconstruction for the ongoing experiments MiniBooNE and T2K. We point out that a lower limit to the uncertainty in the reconstructed energy from Fermi motion alone amounts to about 15%. The entanglement of very different elementary processes, in this case quasielastic scattering and pion production, in the actual observables leads to considerably larger errors. We discuss the sensitivity of the energy reconstruction to detection techniques and experimental acceptances. We also calculate the misidentification cross section for electron appearance in the T2K experiment due to neutral pion production.

   ↳ nucl-thhep-exhep-phnucl-exAIP Conf.Proc.(2011)·2 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.