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相关论文: Connecting Theory to Heavy Ion Experiment

200 篇论文

In this review we give a perspective of the theoretical work done recently on the interpretation of results from $B$, $D$, $\Lambda_b$, $\Lambda_c$ weak decays into final states that contain interacting hadrons, and how it is possible to…

Thermal vorticity in non-central Au+Au collisions at energies $7.7 \leq \sqrt{s} \leq 62.4$ GeV is calculated within the UrQMD transport model. Tracing the $\Lambda$ and $\bar{\Lambda}$ hyperons back to their last interaction point we were…

高能物理 - 唯象学 · 物理学 2020-03-03 O. Vitiuk , L. Bravina , E. Zabrodin

We study the polarization change of Lambda^0's produced in ultra-relativistic heavy-ion collisions with respect to the polarization observed in proton-proton collisions as a signal for the formation of a Quark-Gluon Plasma (QGP). Assuming…

核理论 · 物理学 2009-11-07 Alejandro Ayala , Eleazar Cuautle , Gerardo Herrera , Luis Manuel Montaño

Using the largest $J/\psi$ and $\psi(3686)$ data samples collected at the BESIII experiment, the hyperon anti-hyperon pairs are generated in their quantum entangle system. The polarization of hyperon has been observed, which makes it…

高能物理 - 实验 · 物理学 2022-07-29 Liang Yan

Predictions for the global polarization of $\Lambda$ hyperons in Au+Au collisions at moderately relativistic collision energies, 2.4 $\leq\sqrt{s_{NN}}\leq$ 11 GeV, are made. These are based on the thermodynamic approach to the global…

核理论 · 物理学 2021-03-31 Yu. B. Ivanov

The strange baryon production in Bi+Bi collisions at $\sqrt{s_{NN}}=9.0$\,GeV is studied using the PHSD transport model. Hyperon and anti-hyperon yields, transverse momentum spectra, and rapidity spectra are calculated, their centrality…

核理论 · 物理学 2024-11-15 Nikita S. Tsegelnik , Vadym Voronyuk , Evgeni E. Kolomeitsev

Results on $\Lambda$ hyperon production are reported for collisions of p(3.5 GeV) + Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt. The transverse…

While jet quenching in relativistic heavy-ion collisions has been extensively studied over decades, the polarization of quenched hadrons has rarely been discussed. It has recently been proposed that the correlations of dihadron polarization…

高能物理 - 唯象学 · 物理学 2023-12-12 Xiaowen Li , Zhao-Xuan Chen , Shanshan Cao , Shu-Yi Wei

We compute the Lambda and anti-Lambda global polarization in semi-central heavy-ion collisions modeling the source as consisting of a high-density core and a less dense corona. We show that when more Lambdas than anti-Lambdas are produced…

The transverse polarization of $\Lambda$ hyperon within reconstructed jets in hadronic collisions offers a complementary platform to probe the polarized fragmentation function $D_{1T}^\perp$. We illustrate that by performing a global…

高能物理 - 唯象学 · 物理学 2024-06-21 Ying Gao , Kai-Bao Chen , Yu-Kun Song , Shu-Yi Wei

In non-central relativistic heavy ion collisions, the created matter possesses a large initial orbital angular momentum. Particles produced in the collisions could be polarized globally in the direction of the orbital angular momentum due…

核理论 · 物理学 2018-03-15 Shaowei Lan , Zi-Wei Lin , Shusu Shi , Xu Sun

We investigate the transverse polarization of a hyperon produced in the high-energy unpolarized proton-proton collision, $pp\to\Lambda^\uparrow X$, based on the collinear twist-3 factorization formalism. We focus on the contribution from…

高能物理 - 唯象学 · 物理学 2015-11-11 Yuji Koike , Kenta Yabe , Shinsuke Yoshida

With the availability of high luminosity electron beam at the accelerators, there is now the possibility of studying weak quasielastic hyperon production off the proton, i.e. $e^-p \to \nu_e Y(Y=\Lambda,\Sigma^0)$, which will enable the…

高能物理 - 唯象学 · 物理学 2017-09-11 F. Akbar , M. Sajjad Athar , A. Fatima , S. K. Singh

It is possible that under certain situations, in a relativistic heavy-ion collision, partons may expand out forming a shell like structure. We analyze the process of hadronization in such a picture for the case when the quark-hadron…

高能物理 - 唯象学 · 物理学 2009-11-07 Rajarshi Ray , Soma Sanyal , Ajit M. Srivastava

Polarization of $\Lambda$ hyperons has been observed in various collision systems over a wide range of collision energies over the last 50 years since its discovery in Fermilab in the 70's. The existing experimental and theoretical…

核实验 · 物理学 2023-07-17 Jan Vanek

We calculate the longitudinal polarizations of hyperons in high $p_\perp$ jets in $pp$ collisions in which one of the protons is longitudinally polarized at RHIC energies using different models for the spin transfer in fragmentation…

高能物理 - 唯象学 · 物理学 2007-05-23 Qing-hua Xu , Chun-xiu Liu , Zuo-tang Liang

Jets produced in association with a $Z^{0}$ or $W^{\pm}$ boson in hadronic collisions are automatically polarized due to the parity violation of weak interaction, making these processes ideal for understanding the spin transfer from…

高能物理 - 唯象学 · 物理学 2025-11-11 Wen-Hao Yao , Xiaowen Li , Hui Dong , Shu-Yi Wei

We discuss the production via fragmentation of excited heavy mesons and baryons, and their subsequent decay. In particular, we consider the question of whether a net polarization of the initial heavy quark may be detected, either in a…

高能物理 - 唯象学 · 物理学 2010-11-01 Adam F. Falk , Michael E. Peskin

In new-physics processes that produce b or c jets, a measurement of the initial b or c-quark polarization could provide crucial information about the structure of the new physics. In the heavy-quark limit, the b and c-quark polarizations…

高能物理 - 唯象学 · 物理学 2015-11-16 Mario Galanti , Andrea Giammanco , Yuval Grossman , Yevgeny Kats , Emmanuel Stamou , Jure Zupan

There are excellent opportunities to produce excited heavy hyper residues in relativistic hadron and peripheral heavy-ion collisions. We investigate the disintegration of such residues into hyper nuclei via evaporation of baryons and light…

核理论 · 物理学 2016-12-21 A. S. Botvina , N. Buyukcizmeci , A. Ergun , R. Ogul , M. Bleicher , J. Pochodzalla