English
Related papers

Related papers: A Formula That Generates Hash Collisions

200 papers

In relativistic nuclear collisions the production of hadrons with light (u,d,s) quarks is quantitatively described in the framework of the Statistical Hadronization Model (SHM). Charm quarks are dominantly produced in initial hard…

In the paper, we define the concept of the quantum hash generator and offer design, which allows to build a large amount of different quantum hash functions. The construction is based on composition of classical $\epsilon$-universal hash…

Quantum Physics · Physics 2015-01-22 Farid Ablayev , Marat Ablayev

The hashing trick is a machine learning technique used to encode categorical features into a numerical vector representation of pre-defined fixed length. It works by using the categorical hash values as vector indices, and updating the…

Machine Learning · Computer Science 2021-02-09 M. Andrecut

We present the production systematics of open charm hadron yields in high-energy collisions and their description based on the Statistical Hadronization Model of charm (SHMc). The rapidity density of $D^0, D^+, D^{*+}, D_s^+$ mesons and…

High Energy Physics - Phenomenology · Physics 2025-07-28 Peter Braun-Munzinger , Krzysztof Redlich , Natasha Sharma , Johanna Stachel

Within a combined approach we investigate the main features of the production of hyper-fragments in relativistic heavy-ion collisions. The formation of hyperons is modelled within the UrQMD and HSD transport codes. To describe the hyperon…

Nuclear Theory · Physics 2015-06-23 A. S. Botvina , J. Steinheimer , E. Bratkovskaya , M. Bleicher , J. Pochodzalla

We investigate the orientation dependence of high-order harmonic generation (HHG) from H$_2^+$ with different internuclear distances irradiated by intense laser fields both numerically and analytically. The calculated molecular HHG spectra…

Atomic Physics · Physics 2009-11-13 Yanjun Chen , Jie Liu , Bambi Hu

Peripheral nucleon-nucleus collisions occur at the high energies mainly through the interaction with one constituent quark from the incident nucleon. The central collisions should involve all three constituent quarks and each of them can…

High Energy Physics - Phenomenology · Physics 2019-03-28 G. H. Arakelyan , Yu. M. Shabelski , A. G. Shuvaev

Collisions play an important role in many aspects of the physics of musical instruments. The striking action of a hammer or mallet in keyboard and percussion instruments is perhaps the most important example, but others include reed-beating…

Numerical Analysis · Mathematics 2014-05-13 Stefan Bilbao , Alberto Torin , Vasileios Chatziioannou

Given a specified average load factor, hash tables offer the appeal of constant time lookup operations. However, hash tables could face severe hash collisions because of malicious attacks, buggy applications, or even bursts of incoming…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-06-02 Junchang Wang , Xiong Fu , Fu Xiao , Chen Tian

The current paper improves the number of queries of the previous quantum multi-collision finding algorithms presented by Hosoyamada et al. at Asiacrypt 2017. Let an $l$-collision be a tuple of $l$ distinct inputs that result in the same…

Cryptography and Security · Computer Science 2019-01-29 Akinori Hosoyamada , Yu Sasaki , Seiichiro Tani , Keita Xagawa

The claim that the $X(3872)$ meson cannot be a charm-meson molecule because its prompt production cross section at hadron colliders is too large is based on an upper bound in terms of a cross section for producing charm-meson pairs.…

High Energy Physics - Phenomenology · Physics 2019-11-28 Eric Braaten , Li-Ping He , Kevin Ingles

A systematic study of charged hadron multiplicities ($n_{ch}$) at various collision energies is very much important in understanding the basic production mechanism of the hadrons in nucleus-nucleus collision experiments. Furthermore, the…

High Energy Physics - Phenomenology · Physics 2012-02-23 Ashwini Kumar , P. K. Srivastava , B. K. Singh , C. P. Singh

Simulations by transport codes are indispensable to extract valuable physics information from heavy ion collisions. In order to understand the origins of discrepancies between different widely used transport codes, we compare 15 such codes…

The exchange of gluons between heavy quarks produced in $e^+e^-$ interactions results in an enhancement of their production near threshold. We study QCD threshold effects in $\gamma\gamma$ collisions. The results are relevant to heavy quark…

High Energy Physics - Phenomenology · Physics 2010-11-01 O. J. P. Eboli , M. C. Gonzalez-Garcia , F. Halzen , S. F. Novaes

The production of the $X(3872)$ particle in heavy-ion collisions has been contemplated as an alternative probe of its internal structure. To investigate this conjecture, we perform transport calculations of the $X(3872)$ through the…

Nuclear Theory · Physics 2021-04-14 Biaogang Wu , Xiaojian Du , Matthew Sibila , Ralf Rapp

In this paper, the author proposes a series of multilevel double hashing schemes called cascade hash tables. They use several levels of hash tables. In each table, we use the common double hashing scheme. Higher level hash tables work as…

Data Structures and Algorithms · Computer Science 2015-06-26 Shaohua Li

In this paper, we present a general review of hash functions in a cryptographic sense. We give special emphasis on some particular topics such as cipher block chaining message authentication code (CBC MAC) and its variants. This paper also…

Cryptography and Security · Computer Science 2007-05-23 Turker Ozsari

Calculations of the production rate of particles with $x>1$ in nuclear collisions due to the interaction of colour strings are presented. Momentum and colour sum rules are used to determine the fragmentation functions of fused strings.…

High Energy Physics - Phenomenology · Physics 2009-01-07 M. A. Braun , E. G. Ferreiro , F. del Moral , C. Pajares

Systematic calculations of the Coulomb barrier parameters for collisions of spherical nuclei are performed within the framework of the double folding approach. The value of the parameter $B_Z=Z_PZ_T/(A^{1/3}_P+(A^{1/3}_P)$ (which estimates…

Nuclear Theory · Physics 2016-03-23 Igor Gontchar , Maria Chushnyakova

Relativistic nucleus-nucleus collisions create a "fireball" of strongly interacting matter at high energy density. At very high energy this is suggested to be partonic matter, but at lower energy it should consist of yet unknown hadronic,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Reinhard Stock