Andrzej Bialas, Wojciech Florkowski, Kacper Zalewski
Space-time correlations between produced particles, induced by the composite nature of hadrons, imply specific changes in the properties of the correlation functions for identical particles. The expected magnitude of these effects is evaluated using the recently published blast-wave model analysis of the data for $pp$ collisions at $\sqrt{s}$ = 7 TeV.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
继续探索
Bose-Einstein correlations and the transition time from QCD plasma to hadrons
本文指出，由HBT分析所确定的相互作用区的大小是由于夸克和胶子转变为强子所需的跃迁时间而增加的。粗略估计，R_HBT增加约15%。
Bose-Einstein Correlations in a Fluid Dynamical Scenario for Proton-Proton Scattering at 7 TeV
使用流体动力学的$pp$散射在7 TeV的情况下，我们计算关联函数$π^+π^+$对。基于关联函数的三维参数化提取飞秒半径。我们研究的半径作为一个函数的横向动量的对，不同的多重性类，相应的ALICE最近的实验结果。我们发现同样的半径减少与$k_T$，越来越明显的多重性增加，但没有为最低的多重性。在模型中，我们将其理解为从弦膨胀（低多重性）向三维流体动力学膨胀（高多重性）的过渡。
We analyse in detail the possibility of Bose-Einstein condensation of pions produced in heavy-ion collisions at the beam energy $\sqrt{s_{\rm NN}}$ = 2.76 TeV. Our approach is based on the chemical non-equilibrium thermal model of hadron production which has been generalised to include separately the contribution from the local zero-momentum state. In order to study both the hadronic multiplicities and the transverse-momentum spectra, we use the Cracow freeze-out model which parameterises the flow and space-time geometry of the system at freeze-out in a very economic way. Our analysis indicate…
Hadron production and QGP Hadronization in Pb--Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV
我们发现，所有的中心快度强子产额测量在铅-铅碰撞在$\sqrt{s_{NN}}=2.76$ TeV的化学非平衡统计强子化模型（SHM），其中化学平衡的QGP源直接分裂成强子很好地描述。SHM参数作为碰撞离子的中心性的函数，我们比较欧洲核子研究中心的大型强子对撞机（LHC）与布鲁克海文国家实验室相对论重离子对撞机（RHIC）的结果。我们预测未观测到的强子的产量，并解决反物质的生产。夸克-胶子等离子体火球粒子源的物理性质显示了强子化条件在LHC和RHIC中的普遍性。
Analysis of Bose-Einstein correlations at fixed multiplicities in TeV energy $pp$ collisions in the quantum optical approach
利用量子光学方法得到的公式分析了ALICE合作组在$\sqrt{s}=7$ TeV的$pp$碰撞中观测到的多重数分布和固定多重数下的两粒子玻色-爱因斯坦关联.从分析中估计了包含性和半包含性事件中的混沌参数。多重性或$k_T$依赖的纵向和横向源半径也估计。
Predictions of hadronic observables in Pb+Pb collisions at \surd sNN = 2.76 TeV from a hadronic rescattering model
基于p+p碰撞、相对论几何和末态强子再散射叠加的运动学模型被用来预测\surd sNN = 2.76 TeV Pb+Pb碰撞中的各种强子观测值。预测的快度和横向动量分布，椭圆流，和两玻色子femtoscopy。假设强子化的适当时间很短。以前的计算表明，使用这个模型进行\surd sNN = 200 GeV的Au+Au碰撞，合理地描述了在该能量下进行的实验中的可观测量的趋势，给出了目前的预测Pb+Pb在较高的能量一定程度的可信度。
Universal hadronization condition in heavy ion collisions at $\sqrt{s_\mathrm{NN}}= 62$ GeV and at $\sqrt{s_\mathrm{NN}}=2.76$ TeV
我们获得了在LHC中心Pb-Pb碰撞中所有可用的强子多重性产额的详细描述，测量的快度间隔$|y|<0.5$。我们发现，强子化的火球在大型强子对撞机发生在几乎相同的密集的物理体积条件下的所有中心相似，已经看到在RHIC。
Using a quark combination model with the equal-velocity combination approximation, we study the production of hadrons with strangeness and charm flavor quantum numbers in Pb+Pb collisions at $\sqrt{s_{NN}}=$5.02 TeV. We present analytical expressions and numerical results for these hadrons' transverse momentum spectra and yield ratios. Our numerical results agree well with the experimental data available. The features of strange and charm hadron production in the quark--gluon plasma at the early stage of heavy ion collisions are also discussed.
Contributions from weak-interaction channels to inclusive hadron spectra at TeV energies
在费米实验室的TEVATRON和欧洲核子研究中心的LHC加速器上，部分子过程达到了这样一个高能区，在那里，弱相互作用可以通过打开共振W和Z交换图来考虑强子产额。我们研究了这些贡献，包括在p+p和p+{ \bar p}反应在几个TeV的能量带电强子生产，并比较我们的结果与现有的CDF和CMS数据。我们进行了一个首阶微扰QCD计算，包括电弱通道估计的数量级的带电强子过剩。研究了强子产生的能量依赖性和横动量分布的精细结构。正如预期的那样，在p+ { \bar p}碰撞中，电弱通道比在p+p碰撞中产生大得多的贡献。然而，在可用的加速器能量下，这些类型的贡献仍然接近可以忽略不计。
We show that the data of $p_{T}$ spectra of $Ω^{-}$ and $ϕ$ at midrapidity in inelastic events in $pp$ collisions at $\sqrt{s}=$ 13 TeV exhibit a constituent quark number scaling property, which is a clear signal of quark combination mechanism at hadronization. We use a quark combination model under equal velocity combination approximation to systematically study the production of identified hadrons in $pp$ collisions at $\sqrt{s}$= 13 TeV. The midrapidity data of $p_{T}$ spectra of proton, $Λ$, $Ξ^{-}$, $Ω^{-}$, $ϕ$ and $K^{*}$ in inelastic events are simultaneously well fitted by the model. …
Open Questions Related to Bose-Einstein Correlations in e+ e- --> Hadrons
本文讨论了在$e^+e^-$碰撞中产生的强子的玻色-爱因斯坦关联和费米-狄拉克关联。其中包括发射极尺寸$r$作为$\sqrt{s_{ee}}$和强子质量的函数，通过包括同位旋不变性的BEC的扩展和提出的$r$和玻色凝聚中原子间分离之间的关系。
Bose-Einstein correlations at LEP and Tevatron energies
使用玻色-爱因斯坦关联（BEC）在PYTHIA中实现，我们研究了在Tevatron上进行CDF实验的可能性，以观察相互作用最终状态下的两粒子关联。将有限温度下的量子场论方法应用于LEP的ALEPH数据，反演了BEC的重要参数。
We show that the experimental data of mid-rapidity $p_{T}$ spectra for proton, $Λ$, $Ξ$ , $Ω^{-}$, $\text{K(892)}^{*0}$ and $Ξ(1530)^{*0}$ in minimum-bias $pp$ collisions at $\sqrt{s}=7$ TeV can be systemically explained by the quark combination mechanism of hadronization. The averaged transverse momentum $\langle p_{T}\rangle$ and spectra ratios such as $Ξ/Λ$ and $Ω/ϕ$ calculated from quark combination reproduce the data much better than those from traditional string and/or cluster fragmentation. The available data of hadronic $p_{T}$ spectra released by ALICE collaboration in the first three…
We point out that Bose enhancement in a hadronic wave function generically leads to correlations between produced particles. We show explicitly, by calculating the projectile density matrix in the Color Glass Condensate approach to high-energy hadronic collisions, that the Bose enhancement of gluons in the projectile leads to azimuthal collimation of long range rapidity correlations of the produced particles, the so-called ridge correlations.
Single and Double Photonuclear Excitations in Pb+Pb Collisions at sqrt(s_NN) = 2.76 TeV at the CERN Large Hadron Collider
计算了LHC上超周边Pb+Pb碰撞中单光子和双光子交换的截面。粒子产生是用DPMJET事件发生器模拟的。大的截面被发现粒子生产中快度使这些过程的一个重要背景强子核相互作用在触发和分析水平。
We present an analysis of hadronic multiplicities measured in Pb-Pb collisions at \sqrt s_{NN} = 2.76 TeV as a function of the collision centrality within the statistical hadronization model. Evidence is found of a dependence of the chemical freeze-out temperature as a function of centrality, with a slow rise from central to peripheral collisions, which we interpret as an effect of post-hadronization inelastic scatterings. Using correction factors calculated by means of a simulation based on the UrQMD model, we are able to obtain a significant improvement in the statitical model fit quality an…
Finite size of hadrons and Bose-Einstein correlations
据观察，在高能碰撞中产生的强子的有限大小意味着它们的位置是相关的，因为发现两个强子在彼此顶部的概率大大降低。然后表明，这种效应可以自然地解释的关联函数的值低于1，在LEP和LHC观察到的对相同的π介子。
Bose-Einstein source of intermittency in hadronic interactions
多粒子玻色-爱因斯坦关联是高能强子碰撞中“不相干”的来源。利用完全事件加权技术，在时空粒子发射源形状的高斯近似下，得到了阶乘矩随面元尺寸减小的幂律增长。源尺寸参数的值被发现是高于常见的一个拟合的帮助下，标准的Handbury Brown-Twiss程序。
Ridges and Soft Jet Components in Untriggered Di-hadron Correlations in Pb+Pb Collisions at 2.76 TeV
我们研究未触发的双强子在铅+铅在2.76 TeV的相关性，基于事件的流体动力学膨胀从通量管初始条件的模拟。关联函数示出了作为伪快度差$Δη$和方位角差$Δϕ$的函数的有趣的结构，特别是比较不同的中心性。我们可以清楚地识别出一个峰状的近侧结构与非常低的动量成分的射流外围碰撞，这消失对中央碰撞。另一方面，一个非常广泛的脊结构，从不对称流看到在中心的碰撞，变得越来越小，最后消失向周边碰撞。
The Bose-Einstein correlation (BEC) in forward region ($2.0<η<4.8$) measured at 7 TeV in the Large Hadron Collider (LHC) by the LHCb collaboration is analyzed using two conventional formulas of different types named CF$_{\rm I}$ and CF$_{\rm II}$. The first formula is well known and contains the degree of coherence ($λ$) and the exchange function $E_{\rm BE}^2$ from the BE statistics. The second formula is an extended formula (CF$_{\rm II}$) that contains the second degree of coherence $λ_2$ and the second exchange function $E_{\rm BE_2}^2$ in addition to CF$_{\rm I}$. To examine the physical …
Bose-Einstein Correlations in a Space-Time Approach to e+ e- Annihilation into Hadrons
本文将玻色-爱因斯坦关联的一种新的处理方法引入到e+ e-湮没成强子的时空部分子簇射模型中。两个替代加力燃烧室进行了讨论，我们使用一个简单的可计算的模型来证明，他们成功地再现强子发射区的大小。其中一个加力燃烧室用于计算e+ e- -> Z ^0->强子和e+ e- -> W+ W- ->强子中的两π关联。结果显示与共振衰减和不共振衰减，在这两类事件的相关性沿和横向的推力喷流轴。
Effect of residual Bose-Einstein correlations on the Dalitz plot of hadronic charm meson decay
我们发现，剩余玻色-爱因斯坦关联的存在可能会影响强子粲衰变的共振贡献，其中两个相同的π介子出现在最后的状态。反应相空间的畸变在达利兹图中可见。讨论了衰变D ~+-> K-pi + pi ~+，但结果可推广到全同玻色子的任何衰变.
Extracting the hadronization timescale in sqrt{s}=7 TeV proton-proton collisions from pion and kaon femtoscopy
一个强子再散射模型与适当的强子化时间宽度作为自由参数进行了比较，从LHC ALICE实验sqrt{s}=7 TeV的质子-质子碰撞的带电π介子和带电和中性K介子飞秒测量。在几个带电多重性和横向粒子对动量仓的一维源参数的模型和测量之间的比较。结果表明，当强子化时间宽度为0.4 ± 0.1 fm/c时，该模型能较好地描述源参数，这与基于不确定原理的估计值相一致。模型计算还表明：1）某种形式的集体性是必要的，以描述测量的半径参数的多重性依赖，和2）潜在的物理尺寸和碰撞的时间尺度是显着大于提取的半径参数和强子化适当的时间宽度将意味着。
Particle Production in s_NN = 2.76 TeV Heavy Ion Collisions
在统计强子化模型中，我们得到了在$\sqrt{s_{NN}} = 2.76$ TeV的重离子反应中强子产生$dh/dy$.我们讨论了强子化温度$T$和临界强子化压力$P$的依赖关系。我们考虑区分强子化模型和条件的可观测量。
Bose-Einstein correlations in proton-proton collisions is an effective tool to study the space structure of the production amplitude. Usually rather simple parametrization of particle-emission distribution function has been used - exponential or gaussian form. However if one consider a particle source as an expanding media the symmetric Levy distribution as the generalization exponential can be used.Then additional parameter - the index of stability - will appear. All parameters dependencies on the charged particle density and on the mean transverse momentum of the pion/hadron in the correlate…
Under the assumption that a quark-gluon plasma droplet is produced and its evolution can be described by hydrodynamics in p + A collisions, $γ$-triggered hadron spectra are studied within a next-to-leading-order perturbative QCD parton model with the medium-modified parton fragmentation functions. The initial conditions and space-time evolution of the small QGP droplet are provided by the superSONIC hydrodynamic model simulations and parton energy loss in such a medium is described by the high-twist (HT) approach. The scaled jet transport coefficient $\hat{q}/T^3$ in this HT approach is extrac…
Predictions and comparisons of hadronic flow observables for Pb+Pb collisions at 2.76 A TeV and 5.02 A TeV are presented using a hydrodynamics + hadronic cascade hybrid approach. Initial conditions are generated via a new formulation of the IP-Glasma model and then evolved using relativistic viscous hydrodynamics and finally fed into transport cascade in the hadronic phase. The results of this work show excellent agreement with the recent charged hadron anisotropic flow measurements from the ALICE collaboration of Pb+Pb collisions at 5.02 A TeV. Event-by-event distributions of charged hadron v…
Identified hadron spectra in Pb-Pb at sqrt(s) = 5.5 TeV: hydrodynamics+pQCD predictions
本文用流体力学+微扰QCD（pQCD）方法预言了LHC上Pb-Pb碰撞中的单包荷强子pT谱。
Possible scenarios for soft and semi-hard components structure in central hadron-hadron collisions in the TeV region
在HH碰撞在TeV区域的可能方案进行了讨论，在全相空间。结果表明，在这样高的能量，人们应该期待强大的KNO标度违反和ln（s）的增加的平均带电多重性的半硬组件，导致在一个巨大的迷你射流生产。
Forward hadronic scattering at 8 TeV: predictions for the LHC
大型强子对撞机（LHC）最近开始以8 TeV的能量运行。在这篇文章中，我们更新了我们早期的LHC前向强子散射预测\cite{physicsreports,update7, blackdisk}，给出了新的预测，包括错误，$pp$总截面和非弹性截面，$ρ$值，核斜率参数$B$，$dσ_{\rm el}/dt$，以及在8 TeV的大间隙生存概率。
The dependence of Bose-Einstein Correlations on energy, multiplicity and hadronic jets
本文用能量、强子多重数和出现的强子喷注数考察了由质子-质子碰撞导出的一维玻色-爱因斯坦关联R_1D的依赖性。我们认为，所观察到的R_1D随能量的增加是强子喷注平均数增加的结果。它进一步表明，通过相对简单的测量R_1D和它的混沌参数$λ$一个应该能够估计的平均数量的出射强子喷流发射在整个末态相空间，而不需要依赖于一个特定的喷流寻找算法及其相关的参数。
We show that Bose-Einstein correlations of identical particles in hadron and nucleus high energy collisions, lead to long range rapidity correlations in the azimuthal angle. These correlations are inherent features of the CGC/saturation approach, however, their origin is more general than this approach. In framework of the proposed technique both even and odd $v_n$ occur naturally, independent of the type of target and projectile. We are of the opinion that it is premature to conclude that the appearance of azimuthal correlations are due to the hydrodynamical behaviour of the quark-gluon plasm…
Bose-Einstein correlations and the stochastic scale of light hadrons emitter source
基于有限温度下的量子场论，对轻强子的两粒子玻色-爱因斯坦关联（BEC）函数${C_2}(Q)$进行了新的研究。首次得到了BEC函数中与发射源大小、平均多重数、随机力随粒子能量和质量变化的范围以及源的温度等有关的重要参数。不仅探讨了全同强子之间的关联，而且提出了非全同粒子之间的非关联。本文给出的4-动量空间中两玻色子的关联为强子对撞机上的多粒子飞秒观测和干涉测量的理论和实验工作提供了有益的补充观点。本文是第一个到下一个开放系列的工作，有关搜索的BEC与实验数据，其中上述参数将被检索。
NLO-QCD corrections to e+ e- --> hadrons in models of TeV-scale gravity
本文在TeV尺度引力模型下，通过光子交换、Z交换和引力子交换，给出了对e+ e->强子过程的NLO QCD修正.本文简要讨论了这些QCD修正对线性对撞机额外维搜索的定量影响。
Analyses of multiplicity distributions with η_c and Bose-Einstein correlations at LHC by means of generalized Glauber-Lachs formula
利用负二项分布（NBD）和广义Glauber-Lachs（GGL）公式，分析了ALICE合作组在0.9，2.36和7 TeV赝快度截止η c下和UA 5合作组在0.2，0.54和0.9TeV赝快度截止η c下的带电多重数分布数据。我们证实了在\sqrt{s} = 0.2 \sim ~ 2.36 TeV时，在η_c = 0.5的多重数分布中，KNO标度是成立的，并估计了NBD中参数1/k和GGL公式中参数1/k和γ（相干强子平均值与混沌强子平均值之比）的能量依赖性.利用GGL公式中参数1/k和γ的经验公式，我们预言了在7 TeV和14 TeV处η c = 0.5的多重数分布。根据GGL公式，分析了ALICE和CMS在0.9和2.36TeV的二阶玻色-爱因斯坦关联（BEC）数据。给出了0.9和2.36TeV三阶BEC的预测。此外，还讨论了信息熵。
The possibility of formation of Bose-Einstein Condensation (BEC) is studied in $pp$ collisions at $\sqrt s$ = 7 TeV at the Large Hadron Collider. A thermodynamically consistent non-extensive formulation of the identified hadron transverse momentum distributions is used to estimate the critical temperature required to form BEC of charged pions, which are the most abundant species in a multi-particle production process in hadronic and nuclear collisions. The obtained results have been contrasted with the systems produced in Pb-Pb collisions to have a better understanding. We observe an explicit …
Explanation of hadron transverse-momentum spectra in heavy-ion collisions at sqrt(sNN) = 2.76 TeV within chemical non-equilibrium statistical hadronization model
采用化学非平衡统计强子化模型结合单冻结方案，分析了sqrt（sNN）= 2.76 TeV的重离子碰撞中产生的π介子、K介子和质子的横动量谱.与统计参数发现在早期的研究中的强子比和两个新的几何参数确定的绝对归一化和斜率的频谱，我们得到了一个很好的协议之间的数据和模型的预测。特别是，在非常低的横动量观察到的π介子的增强是非常好的再现。在化学非平衡方法中，这种效应可以自然地解释为重离子碰撞中π介子凝聚的开始。我们进一步强调，化学非平衡解释不仅质子产率，但质子光谱以及。
A Review of Tev Scale Lepton-Hadron and Photon-Hadron Colliders
TeV量级的轻子-强子和光子-强子碰撞研究对于阐明从原子核到夸克-部分子水平的强相互作用动力学以及对未来强子对撞机（LHC和VLHC）实验数据的充分解释都是至关重要的。本文讨论了TeV量级的轻子-强子和光子-强子对撞机的各种方案（如THERA、LEP-LHC、QCD Explorer等）。比较显示了直线加速器环型对撞机的优势。
Glauber-Lachs formula-based analysis of three-pion Bose-Einstein correlation data in $pp$ collisions at 7 TeV from the LHCb Collaboration
利用Glauber-Lachs公式和双组分π子产生模型分析LHCb 7 TeV双三πBose-Einstein相关数据，采用偶极形式和反一又二分之 pole形式扩展函数，计算四维欧几里得空间配置空间。
Dijet Production at Hadron Colliders in Theories with Large Extra Dimensions
我们认为在强子对撞机上产生高不变质量喷流对是TeV尺度引力效应的一个检验。我们发现，该信号在质心能量为14 TeV的LHC上可以探测到约10 TeV的有效普朗克质量，在质心能量为2 TeV的Tevatron上可以探测到约1.5 TeV的有效普朗克质量。这些结果进行了比较，在轻子对撞机类似的散射过程。
Discovery potential of Kaluza-Klein gluons at hadron colliders: A Snowmass whitepaper
我们研究了Kaluza-Klein胶子在强子对撞机上作为双喷射共振的发现潜力，这些强子对撞机具有不同的质心能量，从14 TeV到33 TeV到100 TeV。我们还提出了目前的边界从dijet搜索在UA 2，Tevatron和LHC。
Transverse Momentum, $p_T$, spectra is of prime importance in order to extract crucial information about the evolution dynamics of the system of particles produced in the collider experiments. In this work, the transverse momentum spectra of charged hadrons produced in $PbPb$ collision at $5.02$ TeV has been analyzed using different distribution functions in order to gain strong insight into the information that can be extracted from the spectra. We have also discussed the applicability of Pearson distribution on the spectra of charged hadron at $5.02$ TeV.
In this presentation I report on the results of the paper we published recently together with Kacper Zalewski. It exploits the consequences of the observation that the hadrons, being the composite objects, cannot be produced too close to each other and thus must be correlated in space-time. One of these consequences, which we discuss here, is that the correlation function need not be larger than 1 (as is necessary if the space-time correlations are absent). Since the data from LEP and from LHC do show that the correlation function falls below 1, the particles must be correlated and we show tha…
Identified-hadron (PID) $p_t$ spectra from 13 TeV $p$-$p$ collisions are compared with a two-component (soft+hard) model (TCM) that accurately distinguishes jet-related hadron production (hard component) from nonjet projectile-nucleon dissociation (soft component). The present $p$-$p$ study is similar to and is guided by recent TCM studies of PID spectra from 5 TeV $p$-Pb collisions. The combined analyses serve to establish a well-understood quantitative description of PID hadron production in small collision systems as a control experiment. The control can then be contrasted with conventional…
Analyses of multiplicity distributions and Bose-Einstein correlations at the LHC by means of generalized Glauber-Lachs formula
利用负二项分布（NBD）和广义Glauber-Lachs（GGL）公式，分析了几个赝快度区间的带电多重数分布|η| UA 5和ALICE合作在0.2 - 7 TeV的< η_c。在\sqrt{s} = 0.2 - 2.36 TeV时，我们证实了在η c = 0.5的多重数分布中KNO标度成立，并估计了NBD中参数1/k和GGL公式中参数1/k和γ（相干强子平均值与混沌强子平均值之比）的能量依赖性。利用GGL公式中参数1/k和γ的经验公式，我们预言了在7 TeV和14 TeV处η c = 0.5的多重数分布。根据GGL公式，分析了ALICE和CMS合作组在0.9和2.36TeV的二阶玻色-爱因斯坦关联（BEC）数据。在0.9和2.36 TeV的三阶BEC的预测。
Bose-Einstein or HBT correlations in high energy reactions
热化和流体动力学行为的概念不时地被应用于e+e-、强子+强子和重离子碰撞。这些应用程序进行审查注意粒子多重性，光谱，特别是玻色-爱因斯坦相关性。流体力学能描述这些数据吗？
A Position-Dependent Bose-Einstein Correlation Model for Hadronization Processes
粒子是玻色子或费米子，它们分别服从玻色-爱因斯坦（BE）或费米-狄拉克统计。在强子化过程中，前一种效应是最重要的，因为介子是高能碰撞中最常见的产物。在唯象Lund模型中，BE效应被近似为一个半经典动量相关的关联函数，它有效地作为两个介子之间的吸引力。然而，隆德模型也提供了强子化过程的时空图景。在此基础上，我们利用两个介子之间的产生顶点距离，对现有的LUBOEI算法进行了简单的扩展。根据BE关联函数的指数和高斯参数化，对π介子进行了新旧模型的比较。质量，我们注意到一个相对抑制的BE效应在多射流事件，特别是对低动量，与新的算法。这一趋势与初步实验数据一致。
We show that the experimental data of $p_T$ spectra of identified hadrons released recently by ALICE collaboration for $p$-Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV exhibit a distinct universal behavior --- the quark number scaling. We further show that the scaling is a direct consequence of quark (re-)combination mechanism of hadronization and can be regarded as a strong indication of the existence of the underlying source with constituent quark degree of freedom for the production of hadrons in $p$-Pb collisions at such high energies. We make also predictions for production of other hadrons.
Two-component model description of Bose-Einstein correlations in pp collisions at 13 TeV measured by the CMS Collaboration at the LHC
本文用双组分模型分析LHC上CMS合作组13 TeV质子-质子碰撞中的玻色-爱因斯坦关联，并与τ模型比较，给出指数和高斯形式下发射源扩展幅度分别为1-4 fm和0.4-0.5 fm，并估计3π关联上限以检验模型及长程关联作用。
Using iEBE-VISHNU hybrid model with the AMPT initial conditions, we study the higher order flow harmonics of identified hadrons in 2.76 A TeV Pb+Pb collisions. Comparison with the recent ALICE measurements at 20-30\% centrality shows that our calculations nicely describe the data below 2 GeV, especially for the $v_2$, $v_3$ and $v_4$ mass-orderings among pions, kaons and protons. We also extended the calculations to other centrality bins, which presents similar mass-ordering patterns for these flow harmonics as the ones observed at 20-30\% centrality. In the later part of this article, we expl…
Energy dependence of source geometry and chaoticity in hadronic collisions from Bose-Einstein correlations
我们比较和分析的$π^+ p$和$K^+ p$碰撞在$\sqrt{s}=22\ GeV$的NA 22-合作和数据的$p\bar{p}$碰撞在$\sqrt{s}=630\ GeV$的UA 1-最小偏差合作获得的玻色-爱因斯坦关联数据。使用一个纵向扩展源的参数化，我们观察到，相关长度和半径提取的数据变化显着，如果一个从NA 22-到UA 1-数据：混沌源的横向半径增加约$50\%$，而在纵向和横向方向的相关长度减少约$50\%$和$30\%$，分别。混沌参数保持近似恒定或增加。DMR-THEP-94-6/W
Direct Top Quark Production at Hadron Colliders as a Probe of New Physics
我们研究了在强子对撞机上，色磁矩的异常变化对直接产生顶夸克（两个部分子在s通道中结合成一个单独的顶夸克）的影响。我们考虑t-c-g和t-u-g耦合。我们发现，在主注入器升级（LHC）的Tevatron上，异常魅力夸克耦合参数$κ_c / Λ$可以测量到$.06 TeV^{-1}(.009 TeV^{-1}$）。在Tevatron（LHC）上可以测量到反常的上夸克耦合参数$κ_u / Λ$（$.02 TeV^{-1}(.003 TeV^{-1}$）。
Using a relativistic hydrodynamics + hadronic afterburner simulation we explore resonance production in PbPb collisions at 5.02 TeV, and demonstrate that many resonance yields, mean transverse momenta, and flows are very sensitive to the late stage hadronic rescattering. Out of all measured resonances $Λ(1520)$ is affected strongest by the hadronic rescattering stage, which allows to estimate its duration, and even constrain branching ratios of $Σ^* \to Λ(1520)π$ decays. Strong suppression of $Λ(1520)$, which in vacuum has a lifetime of 12.6 fm/$c$, is explained by its small lifetime in a hadr…
Bose-Einstein correlations of identical hadrons produced in high- energy pp collisions at the LHC is a good instrument to probe the size of the domain which emits these hadrons in different classes of events. This provides an additional information on the dynamics of multiparticle production. In particular this way we may measure the radius of the colour tube/string which create the secondary pions.
Possible scenarios for soft and semi-hard components structure in central hadron-hadron collisions in the TeV region: pseudo-rapidity intervals
继续前人对TeV区强子-强子碰撞集体变量在全相空间中性质的研究，我们的研究扩展到赝快度区间的多重数分布和族结构分析。总多重数分布（MD）在这里也被认为是软和半硬组分的加权叠加，并描述为帕斯卡（NB）MD。软组分的特点是KNO和费曼标度行为在所有的情况下，不同的半硬组分的属性。事实上，在场景1中，半硬分量应该满足KNO和Feynman标度行为，并且在场景2中强烈违反它。第三种可能性已经被探索过了：这是一个QCD启发的场景，并导致了介于刚才提到的两个之间的期望。在TeV能区，半硬组分结构占主导地位，一个巨大的微型喷流的产生确实是该区域的主要现象。此外，一个新的物种的氏族产生的氏族提出了一个相变的氏族生产的情况2和3。我们的结果可以与Tevatron和LHC的实验数据进行比较。
Photon versus Hadron Interferometry
光子和介子都是玻色子，因此满足相同的玻色-爱因斯坦统计。这导致了相应的玻色-爱因斯坦相关性的某些相似之处，光子和强子强度干涉。然而，这两种效应之间也存在重要差异，下文将对此进行分析。
One-loop weak corrections to the $b\bar b$ cross section at TeV energy hadron colliders
本文研究了Tevatron和大型强子对撞机（LHC）上两个$b$喷流产生截面的单圈弱修正。我们建立，他们是小的包容性的水平，但占主导地位的独家观测，有一个非平凡的依赖于螺旋结构的硬子过程。这种效应可以作为对标准模型（SM）的检验，相反，在未来的实验分析中，为了提取新物理学的可能信号，应该考虑这些效应。
Tev Neutrino Physics at the Large Hadron Collider
我认为，TeV中微子物理学可能成为粒子物理学在大型强子对撞机（LHC）时代的一个令人兴奋的前沿。三种已知中微子的质量都不为零，但质量很小，它们的起源可能与一些重自由度的存在有关，例如重马约拉纳中微子或重希格斯玻色子玻色子，通过TeV尺度的跷跷板机制。我举了几个例子来说明如何在TeV跷跷板的理论自然性和实验可测性之间取得平衡。除了可能的对撞机签名在大型强子对撞机，新的和非幺正CP破坏的影响，也预计将出现在中微子振荡的类型-I，类型-（I+II）和类型-III的跷跷板在TeV的规模。
Yield correlations and $p_T$ dependence of charm hadrons in Pb + Pb collisions at $\sqrt{s_{NN}}= 2.76$ TeV
最近ALICE合作组公布了欧洲核子研究中心（CERN）大型强子对撞机（LHC）上Pb + Pb碰撞中粲强子的一些数据。我们将夸克组合推广到粲扇区，指出粲强子产额的测量可以为研究粲夸克强子化机制和高能反应中产生的热密物质的性质提供重要的信息。我们提出了几种不同的产额比，如$D^{*+}/D^0$，$D_s^+/D^+$和$Λ_c^+/D_s^+$，来测量低$p_T$粲夸克强子化的各种性质.我们认为，比值$D_s^+/D^0$和$2D_s^+/(D^0+D^+)$作为横动量的函数，可以作为一个很好的探针的魅力夸克强子化的动力学。我们进一步预测了在$\sqrt{s_{NN}}= 2.76$ TeV的中心Pb + Pb碰撞中已识别的粲强子的产额和$p_T$谱。
The ALICE collaboration at the large hadron collider (LHC) recently reported high-statistics $p_t$ spectrum data from 5 TeV and 13 TeV $p$-$p$ collisions. Particle data for each energy were partitioned into event classes based on the total yields within two disjoint pseudorapidity $η$ intervals denoted by acronyms V0M and SPD. For each energy the spectra resulting from the two selection methods were then compared to a minimum-bias INEL $> 0$ average over the entire event population. The nominal goal was determination of the role of jets in high-multiplicity $p$-$p$ collisions and especially th…
扫码添加微信好友，提出您的宝贵建议 👇
💡 备注请填写：网站反馈
发表机构由 AI 从论文文本抽取，如发现错误，欢迎反馈修正建议。