Mon·Jul 17, 2017Monday·July 17, 2017

1. 01*

   Evidence of the Antimagnetic rotation in an odd-odd nucleus: The case of 142Eu

   Sajad Ali🇮🇳 · S. Rajbanshi · B. Das🇮🇳 · S. Chattopadhyay🇮🇳 · M. Saha Sarkar🇮🇳 · A. Goswami🇩🇪 · R. Raut🇮🇳 · Abhijit Bisoi🇮🇳 · Somnath Nag · S. Saha · J. Sethi🇮🇳 · R. Palit🇮🇳 and 6 other authors

   The present work reported a conclusive evidence for anti-magnetic rotational (AMR) band in an odd-odd nucleus 142Eu. Parity of the states of a quadrupole sequence in 142Eu was firmly identified from polarization measurements using the Indian National Gamma Array and lifetimes of some of the states in the same structure were measured using the Doppler shift attenuation method. The decreasing trends of the deduced quadrupole transition strength B(E2) with spin, along with increasing J(2) / B(E2) values conclusively established the origin of these states as arising from Antimagnetic rotation. The results were well reproduced by numerical calculations within the framework of a semi-classical geometric model.

   nucl-exPRC(2017)·22 citations
2. 02*

   Correlation functions of net-proton multiplicity distributions in Au + Au collisions at energies available at the BNL Relativistic Heavy Ion Collider from a multiphase transport model

   Yufu Lin🇨🇳 · Lizhu Chen🇨🇳 · Zhiming Li🇨🇳

   Fluctuations of conserved quantities are believed to be sensitive observables to probe the signature of the QCD phase transition and critical point. It was argued recently that measuring the genuine correlation functions (CFs) could provide cleaner information on possible nontrivial dynamics in heavy-ion collisions.With the AMPT (a multiphase transport) model, the centrality and energy dependence of various orders of CFs of net protons in Au + Au collisions at $\sqrt{s_{\mathrm{NN}}}$=7.7, 11.5, 19.6, 27, 39, 62.4 and 200 GeV are investigated. The model results show that the number of antiprotons is important and should be taken into account in the calculation of CFs at high energy and/or in peripheral collisions. It is also found that the contribution of antiprotons is more important for higher order correlations than for lower ones. The CFs of antiprotons and mixed correlations play roles comparable to those of protons at high energies. Finally, we make comparisons between the model calculation and experimental data measured in the STAR experiment at the BNL Relativistic Heavy Ion Collider.

   ↳ hep-phhep-exnucl-exPRC(2017)·10 citations
3. 03*

   Transverse Momentum Fluctuations and Correlations

   Piotr Bozek🇵🇱 · Wojciech Broniowski🇵🇱 · Sandeep Chatterjee🇵🇱

   We study fluctuations and correlations of the average transverse momentum of particles emitted in heavy-ion collisions. Fluctuations of the average transverse momentum are related to event-by-event fluctuations of the size and entropy of the initial source. Hydrodynamic calculations using a Glauber model with quark degrees of freedom reproduce the data. We study correlations of the average transverse momentum in different rapidity bins. We propose a definition of the observable that can be directly related to correlations of the collective flow variables.

   ↳ nucl-thnucl-exActa Phys.Polon.Supp.(2017)·10 citations
4. 04*

   Assessing the foundation of the Trojan Horse Method

   C.A. Bertulani🇺🇸 · M.S. Hussein🇧🇷 · S. Typel🇩🇪

   We discuss the foundation of the Trojan Horse Method (THM) within the Inclusive Non-Elastic Breakup (INEB) theory. We demonstrate that the direct part of the INEB cross section, which is of two-step character, becomes, in the DWBA limit of the three-body theory with appropriate approximations and redefinitions, similar in structure to the one-step THM cross section. We also discuss the connection of the THM to the Surrogate Method (SM), which is a genuine two-step process.

   ↳ nucl-thnucl-exPLB(2018)·17 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.