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6,270 results on '"Invariant mass"'

1. Measurements of the chiral magnetic effect with background isolation in 200 GeV Au+Au collisions at STAR

Author

Zhao, Jie and collaboration, STAR

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, QCD, heavy-ion collisions, chiral magnetic effect, invariant mass, reaction plane, participant plane, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Nuclear and plasma physics, Particle and high energy physics
Published
2019

2. An Enhancement of Formation of Unstable 8Be Nucleus with the Growth of α-Particle Multiplicity in Fragmentation of Relativistic Nuclei.

Author

Zaitsev, A. A., Zarubin, P. I., and Peresadko, N. G.

Subjects
*PARTICLE tracks (Nuclear physics), *RELATIVISTIC particles, *MULTIPLICITY (Mathematics), *PROTONS, *NUCLEAR density, *MULTIPLICITY of nuclear particles
Abstract

In this paper, the correlation between the formation of the unstable 8Be nucleus and accompanying α particles in the fragmentation of relativistic 16О, 22Ne, 28Si, and 197Au nuclei in a nuclear track emulsion is investigated. The 8Be decays are identified in a wide energy range by invariant masses calculated from 2α-pair opening angles. The adopted approximations are verified by data on fragmentation of 16O nuclei in a hydrogen bubble chamber in a magnetic field. An increase in the 8Be contribution to the dissociation with the growth of α-particle multiplicity is found. [ABSTRACT FROM AUTHOR]

Published
2021
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6. The Hoyle State in the Relativistic Dissociation of Light Nuclei.

Author

Zaitsev, A. A. and Zarubin, P. I.

Subjects
*PARTICLE tracks (Nuclear physics), *BERYLLIUM, *ALPHA rays, *SUPERHEAVY elements, *PARTICLES (Nuclear physics), *DATA analysis, *EMULSIONS
Abstract

In the context of the search for the triples of relativistic α particles in the Hoyle state, the analysis of available data on the dissociation of the 12C, 16O, and 22Ne nuclei in a nuclear track emulsion was carried out. The Hoyle state is identified by the invariant mass calculated from the pair opening angles in α triples in the approximation of the conservation of the momentum per nucleon of the parent nucleus. The contribution of the Hoyle state to the 12C → 3α dissociation is 10%. In the case of the 16O → 4α coherent dissociation, it reaches 22% when the portion of the 16O → 28Be channel is 5%. [ABSTRACT FROM AUTHOR]

Published
2019
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9. Nonresonant Multi-Boson Production

Author

Mozer, Matthias U., Chen, Yan, Series editor, Fujimori, Atsushi, Series editor, Stwalley, William C., Series editor, Woggon, Ulrike, Series editor, and Mozer, Matthias U.

Published
2016
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11. Model-Independent Searches for New Physics in Multi-Body Invariant Masses

Author

Sergei Chekanov, Smita Darmora, Wasikul Islam, Carlos E. M. Wagner, and Jinlong Zhang

Subjects
beyond the Standard Model (BSM), invariant mass, jets, leptons, large hadron collider (LHC), Elementary particle physics, QC793-793.5
Abstract

Model-independent searches for physics beyond the Standard Model typically focus on invariant masses of two objects (jets, leptons or photons). In this study, we explore opportunities for similar model-agnostic searches in multi-body invariant masses. In particular, we focus on the situations in which new physics can be observed in a model-independent way in three and four-body invariant masses of jets and leptons. Such searches may have good prospects in finding new physics in the situations when two-body invariant masses, which have been extensively explored at collider experiments in the past, cannot provide sufficient signatures for experimental observations.

Published
2021
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13. Baryons

Author

Povh, Bogdan, Rith, Klaus, Scholz, Christoph, Zetsche, Frank, Rodejohann, Werner, Hassani, Sadri, Series editor, Munro, W. J., Series editor, Needs, Richard, Series editor, Rhodes, William T., Series editor, Stutzmann, Martin, Series editor, Wipf, Andreas, Series editor, Povh, Bogdan, Rith, Klaus, Scholz, Christoph, Zetsche, Frank, and Rodejohann, Werner

Published
2015
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14. LHC Phenomenology

Author

Plehn, Tilman, Ehlers, Jürgen, Series editor, Englert, Berthold-Georg, Series editor, Hänggi, Peter, Series editor, Hillebrandt, Wolfgang, Series editor, Jones, Richard A L, Series editor, von Löhneysen, H., Series editor, Raimond, Jean-Michel, Series editor, Salmhofer, Manfred, Series editor, Theisen, Stefan, Series editor, Vollhardt, Dieter, Series editor, Longair, Malcolm S., Series editor, Rubio, Angel, Series editor, Hjorth-Jensen, Morten, Series editor, Pinton, Jean-Francois, Series editor, Wells, James D., Series editor, and Plehn, Tilman

Published
2015
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17. The S-wave resonance contributions in the $$B^{0}_{s}$$ B s 0 decays into $$\psi (2S,3S)$$ ψ ( 2 S , 3 S ) plus pion pair

Author

Zhou Rui, Ya Li, and Wen-Fei Wang

Subjects
Invariant Mass, Invariant Mass Distribution, Vertex Correction, Charmonium State, Pion Pair, Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract The three-body decays $$B^0_s \rightarrow \psi (2S,3S) \pi ^+ \pi ^-$$ B s 0 → ψ ( 2 S , 3 S ) π + π - are studied based on the perturbative QCD approach. With the help of the nonperturbative two-pion distribution amplitudes, the analysis is simplified into the quasi-two-body processes. Besides the traditional factorizable and nonfactorizable diagrams at the leading order, the next-to-leading order vertex corrections are also included to cancel the scale dependence. The $$f_0(980)$$ f 0 ( 980 ) , $$f_0(1500)$$ f 0 ( 1500 ) resonance contributions as well as the nonresonant contributions are taken into account using the presently known $$\pi \pi $$ π π time-like scalar form factor for the $$s\bar{s}$$ s s ¯ component. It is found that the predicted $$B^0_s \rightarrow \psi (2S) \pi ^+ \pi ^-$$ B s 0 → ψ ( 2 S ) π + π - decay spectra in the pion pair invariant mass shows a similar behavior as the experiment. The calculated S-wave contributions to the branching ratio of $$B^0_s \rightarrow \psi (2S) \pi ^+ \pi ^-$$ B s 0 → ψ ( 2 S ) π + π - is $$6.0\times 10^{-5}$$ 6.0 × 10 - 5 , which is in agreement with the LHCb data $$\mathcal {B}(B^0_s \rightarrow \psi (2S) \pi ^+ \pi ^-)=(7.2\pm 1.2)\times 10^{-5} $$ B ( B s 0 → ψ ( 2 S ) π + π - ) = ( 7.2 ± 1.2 ) × 10 - 5 within errors. The estimate of $$\mathcal {B}(B^0_s \rightarrow \psi (3S) \pi ^+ \pi ^-)$$ B ( B s 0 → ψ ( 3 S ) π + π - ) can reach the order of $$10^{-5}$$ 10 - 5 , pending the corresponding measurements.

Published
2017
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19. Experimental searches for the chiral magnetic effect in heavy-ion collisions.

Author

Zhao, Jie and Wang, Fuqiang

Subjects
*QUANTUM chromodynamics, *ELECTRIC currents, *QUARK-gluon plasma, *PLASMA density, *MAGNETIC fields, *ENERGY density, *HEAVY-ion atom collisions
Abstract

The chiral magnetic effect (CME) in quantum chromodynamics (QCD) refers to a charge separation (an electric current) of chirality imbalanced quarks generated along an external strong magnetic field. The chirality imbalance results from interactions of quarks, under the approximate chiral symmetry restoration, with metastable local domains of gluon fields of non-zero topological charges out of QCD vacuum fluctuations. Those local domains violate the P and CP invariance, potentially offering a solution to the strong CP problem in explaining the magnitude of the matter–antimatter asymmetry in today's universe. Relativistic heavy-ion collisions, with the likely creation of the high energy density quark–gluon plasma and restoration of the approximate chiral symmetry, and the possibly long-lived strong magnetic field, provide a unique opportunity to detect the CME. Early measurements of the CME-induced charge separation in heavy-ion collisions are dominated by physics backgrounds. Major efforts have been devoted to eliminate or reduce those backgrounds. We review those efforts, with a somewhat historical perspective, and focus on the recent innovative experimental undertakings in the search for the CME in heavy-ion collisions. [ABSTRACT FROM AUTHOR]

Published
2019
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20. A novel invariant mass method to isolate resonance backgrounds from the chiral magnetic effect.

Author

Li, Hanlin, Zhao, Jie, and Wang, Fuqiang

Subjects
*CHIRALITY, *REST mass (Relativity), *SEPARATION (Technology), *FLUCTUATIONS (Physics), *MAGNETIC field effects
Abstract

Abstract The Chiral Magnetic Effect (CME) refers to charge separation along a strong magnetic field, due to topological charge fluctuations in QCD. Charge correlation (Δ γ) signals consistent with CME have been first observed almost a decade ago. It has also been known since then that the Δ γ is contaminated by a major background from resonance decays coupled with elliptic flow. In this contribution, we propose differential Δ γ measurements as function of the pair invariant mass (m inv). The Δ γ in the high m inv region is essentially free of resonance backgrounds. In the low m inv region, the Δ γ backgrounds show resonance peaks. The CME signal, presumably smooth in m inv , may thus be extracted from a two-component model fit. We demonstrate the feasibility and effectiveness of this novel method by using the AMPT and toy-model Monte-Carlo simulations. We also discuss an application of the method in data analysis. [ABSTRACT FROM AUTHOR]

Published
2019
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21. Application of Nuclear Track Emulsion in Search for the Hoyle State in Dissociation of Relativistic 12C Nuclei.

Author

Zaitsev, A. A. and Zarubin, P. I.

Subjects
*NUCLEAR emulsions, *NUCLEAR track detectors, *DISSOCIATION (Chemistry), *CARBON, *PARTICLES (Nuclear physics), *REST mass (Relativity)
Abstract

In dissociation in nuclear track emulsion of 4.5 and 1 A GeV/c12C nuclei, the formation of triplets of α particles in the Hoyle state (the second excited state 0+) is observed. This state is identified by the invariant mass, calculated from pair angles in the α triples in approximation of conservation of momentum per nucleon of the parent nucleus. An estimate of the contribution of the Hoyle state to the dissociation of 12C→ 3α is 10-15%. [ABSTRACT FROM AUTHOR]

Published
2018
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29. Revisiting the nature of the P c pentaquarks

Author

José Antonio Oller, Vadim Baru, Christoph Hanhart, Feng-Kun Guo, Meng-Lin Du, Ulf-G. Meißner, and Qian Wang

Subjects
Physics, Nuclear and High Energy Physics, Unitarity, Hadron, High Energy Physics::Phenomenology, FOS: Physical sciences, State (functional analysis), QC770-798, Quantum number, Lambda, QCD Phenomenology, Condensed Matter::Disordered Systems and Neural Networks, Pentaquark, Combinatorics, High Energy Physics - Phenomenology, Distribution (mathematics), High Energy Physics - Phenomenology (hep-ph), Non-perturbative renormalization, Nuclear and particle physics. Atomic energy. Radioactivity, Invariant mass, High Energy Physics::Experiment, ddc:530
Abstract

The nature of the three narrow $P_c$ states, i.e., $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$, is under intense discussion since their discovery from the updated analysis by LHCb. In this work we extend our previous coupled-channel approach [Phys. Rev. Lett. \bf{124}, 072001 (2020)] by including the $\Lambda_c\bar{D}^{(*)}$ and $\eta_cp$ as explicitly in addition to the $J/\psi p$, as required by unitarity and heavy quark spin symmetry (HQSS). Since inelastic parameters are very badly constrained by the current data, three schemes are considered: (a) scheme I with pure contact interactions and without the $\Lambda_c\bar D^{(*)}$ interactions, (b) scheme II, where the one-pion exchange is added to scheme I, and (c) scheme III, where the $\Lambda_c \bar D^{(*)}$ are included in addition. It is shown that to obtain cutoff independent results, OPE in the multichannel system is to be supplemented with $S$-$D$ mixing contact terms. We demonstrate that the experimental data for the $J/\psi p$ invariant mass distribution are consistent with the interpretation of the $P_c(4312)$ and $P_c(4440)/P_c(4457)$ as $\Sigma_c\bar{D}$ and $\Sigma_c \bar{D}^{*}$ hadronic molecules, respectively, and that the data show clear evidence for a new narrow $P_c(4380)$, as a $\Sigma_c^*\bar D$ molecule, which should exist as a consequence of HQSS. While two equally good solutions are found in scheme I, only one of these solutions with the quantum numbers of the $P_c(4440)$ and $P_c(4457)$ being $J^P=3/2^-$ and $1/2^-$, respectively, survives the requirement of regulator independence once the OPE is included. Moreover, we predict the line shapes in the elastic and inelastic channels and demonstrate that those related to the $P_c(4440)$ and the $P_c(4457)$ in the corresponding $\Sigma_c^{(*)}\bar{D}$ and $\eta_cp$ mass distributions allow one to confirm the quantum numbers given above, once the data are available., Comment: 57 pages, 14 figures, and 13 tables

Published
2021

30. ResBos and ePump Analysis on ATLAS 8TeV Z Boson Transverse Momentum Distributions

Author

Reyima Rashidin, Qaynar Jandaolet, Alim Ablat, Ibrahim Sitiwaldi, and Pazilet Obul

Subjects
Physics, Particle physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), General Mathematics, Vector boson, Gluon, Momentum, medicine.anatomical_structure, Atlas (anatomy), medicine, Invariant mass, Resummation, Nuclear Experiment, Boson
Abstract

Fixed-order predictions cannot describe the vector boson production process in low transverse momentum regions where resummation of soft gluon emission is essential. Using a ResBos Monte Carlo package, we perform the resummed theoretical predictions for the transverse momentum distributions of Z boson measured in proton-proton collision at $\sqrt {s}=8$ TeV with ATLAS detector at LHC. We compare our results with data and fixed-order NNLO predictions. We find that the ResBos predictions significantly improve the agreement between the data and theory until the transverse momentum of the boson exceeds its invariant mass. However, in the high transverse momentum region, ResBos predictions approximate to fixed-order NNLO calculations and cannot describe well the data, the deviation between data and theory can be covered by the scale uncertainty. In addition, we study the impact of absolute and normalized ATLAS 8TeV Z boson transverse momentum distributions on CT18NNLO PDFs considering the low transverse momentum region where the ResBos predictions are reliable. We find that the traverse momentum distributions in the mass region 66 GeV < Mll < 116 GeV have a significant impact on CT18NNLO PDFs, benefiting from the high precision of the data. Furthermore, we demonstrate that absolute and normalized distributions have approximately the same impact on the PDFs.

Published
2021

31. MPD ITS Physical Simulations with Focus on Charmed Mesons

Author

V. P. Kondratiev, Yu. Murin, and N. A. Maltsev

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Time projection chamber, Pixel, Meson, Physics::Instrumentation and Detectors, business.industry, Detector, Tracking system, High Energy Physics::Experiment, Invariant mass, Charm (quantum number), Nuclear Experiment, business, Focus (optics)
Abstract

Improving the accuracy of reconstruction of the decay vertices of short-lived particles plays a fundamental role in the heavy-flavor sector of the MPD physics program. The MPD inner tracking system (ITS) based on a new generation of silicon detectors,—monolithic active pixel sensors (MAPS)—would certainly offer new possibilities within the scope of charm particle detection. A quality assessment of the MPD tracking system including ITS and time projection chamber (TPC), when reconstructing the decays of D‑mesons produced in central Au + Au collisions at $$\sqrt {{{s}_{{NN}}}} $$ = 9 GeV has been performed in the course of computer simulations in the Mpdroot framework. The selection of D-meson signals in the invariant mass spectrum of their decay products was performed using a toolkit for multivariate data analysis.

Published
2021

32. The New Charm-Strange Resonances in the D−K+ Channel

Author

G. Randriamanatrika, D. Rabetiarivony, Stephan Narison, R.M. Albuquerque, Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), and Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
High Energy Physics - Theory, Quark, Nuclear and High Energy Physics, Particle physics, Scalar (mathematics), FOS: Physical sciences, mixing angle, quantum number, operator product expansion, 01 natural sciences, quantum chromodynamics: correction, gluon: condensation, Perturbative and non-perturbative QCD, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), sum rule: spectral, excited state, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Invariant mass, +D%2B+D-+K%2B%22">B+ --> D+ D- K+, 010306 general physics, sum rule: Laplace, Quantum chromodynamics, Physics, QCD sum rules, Exotic hadrons, [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th], 010308 nuclear & particles physics, scattering, hadron: molecule, tetraquark, stability, Quantum number, LHC-B, High Energy Physics - Phenomenology, High Energy Physics - Theory (hep-th), Masses and decay constants, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics::Experiment, Tetraquark, Sum rule in quantum mechanics, quark: condensation
Abstract

We evaluate the masses and decay constants of the $0^+$ and $1^-$ open-charm $(\bar{c}\bar{d})(us)$ tetraquarks and molecular states from QCD spectral sum rules (QSSR) by using QCD Laplace sum rule (LSR). This method takes into account the stability criteria where the factorized perturbative NLO corrections and the contributions of quark and gluon condensates up to dimension-6 in the OPE are included. We confront our results with the $D^- K^+$ invariant mass recently reported by LHCb from $B^+ \to D^+(D^- K^+)$ decays. We expect that the resonance near the $D^- K^+$ threshold can be originated from the $0^{+}(D^-K^+)$ molecule and/or $D^- K^+$ scattering. The $X_0(2900)$ scalar state and the resonance $X_J(3150)$ (if $J = 0$) can emerge from a minimal mixing model, with a tiny mixing angle $\theta_0 \simeq (5.2 \pm 1.9)^0$, between a scalar Tetramole $({\cal T}_{\!\!{\cal M}0})$ (superposition of nearly degenerated hypothetical molecules and compact tetraquarks states with the same quantum numbers), having a mass $M_{{\cal T}_{\!\!{\cal M}0}} = 2743(18)$ MeV, and the first radial excitation of the $D^- K^+$ molecule with mass $M_{(DK)_1} = 3678(310)$ MeV. In an analogous way, the $X_1(2900)$ and the $X_J(3350)$ (if $J = 1$) could be a mixture between the vector Tetramole $({\cal T}_{\!\!{\cal M}1})$, with a mass $M_{{\cal T}_{\!\!{\cal M}1}} = 2656(20)$ MeV, and its first radial excitation having a mass $M_{{\cal T}_{\!\!{\cal M}1}} = 4592(141)$ MeV with an angle $\theta_0 \simeq (9.1 \pm 0.6)^0$. A (non)-confirmation of these statements requires experimental findings of the quantum numbers of the resonances at $3150$ and $3350$ MeV., Comment: Talk given at 23rd High-Energy Physics International Conference in Quantum Chromodynamics (QCD 20, 35th anniversary), 27-30 October 2020, Montpellier-France (v2: typos corrected, results unchanged)

Published
2021

33. Evidence of a J/ψΛ structure and observation of excited Ξ- states in the Ξb-→J/ψΛK- decay

Author

Sergey Legotin, Thomas Peter Jones, Andrea Lampis, Monica Pepe Altarelli, Sergii Kandybei, Eric Cogneras, Alexander Malinin, Mikhail Korolev, Naomi Cooke, Ross John Hunter, Eric van Herwijnen, Dmitry Golubkov, V. Matiunin, Mika Vesterinen, Z. Li, Stephane T'Jampens, S. Filippov, Stephanie Hansmann-Menzemer, Giacomo Graziani, J. A. B. Coelho, Lavinia-Helena Giubega, E. Golobardes, P. J. Marshall, D. Xiao, N. Polukhina, Placido Fernandez Declara, L. Minzoni, Ricardo Vazquez Gomez, David Anthony Friday, Harris Conan Bernstein, Cesar Luiz Da Silva, Jakob Haimberger, Halime Sazak, Vladimir Shevchenko, Maarten van Veghel, Irina Nasteva, George Coombs, Rosen Matev, Suzanne Klaver, Alexandre Boyer, Pablo Baladron Rodriguez, Abraham Gallas Torreira, Elisabeth Maria Niel, Sonia Amina Bouchiba, N. S. Nolte, V. Macko, J. Buytaert, Xianglei Zhu, Ilia Belov, Andreas Schopper, Melissa Maria Cruz Torres, T. Nanut, C. Bozzi, H. Viemann, Aleksandr Petrov, Antonio Falabella, Davide Zuliani, H. Stevens, Jonas Rademacker, Bo Fang, Kristof De Bruyn, F. Ferreira Rodrigues, S. Kotriakhova, Yuehong Xie, Anastasia Smetkina, Peilian Li, Maximo Plo Casasus, John Jake Lane, J. Wang, Marek Jezabek, Giovanni Passaleva, Thi Thuy Hang Pham, Di Yang, Eddy Jans, Roger Barlow, Cheryl Pappenheimer, Lais Soares Lavra, I. A. Monroy, Federico Stagni, Wojciech Kucewicz, S. Jakobsen, Jozef Tomasz Borsuk, Agnieszka Dziurda, Ricardo Graciani Diaz, Yury Guz, Regis Lefèvre, Lucian Cojocariu, Mark Smith, M. Soares, M. Hatch, S. Kretzschmar, Stephen M. Stahl, John Back, M. D. Sokoloff, Simone Bifani, Mark Whitehead, Lucas Mcconnell, Semen Eidelman, A. Usachov, Silvia Borghi, Pavel Krokovny, Mario Edgardo Olivares, Rui Wang, Christopher James Pawley, Lukas Calefice, A. Inglessi, Jose Maria Fernandez-tenllado Arribas, Aleksei Chernov, Davide Fazzini, Stephen Wotton, B. Delaney, S. Meloni, Zakariya Aliouche, M. S. Bieker, G. Morello, Richard Jacobsson, Marta Calvi, Giulia Manca, R. D. Moise, C. Hasse, Ekaterina Trifonova, W. Parker, Valerie Gibson, Patrizia De Simone, Shuaiyi Liu, Marie-Noelle Minard, Clara Gaspar, Massimiliano Fiorini, Miriam Calvo Gomez, Carla Marin Benito, Evgeny Gushchin, Ilaria Neri, Oliver Lupton, W. Huang, Stefano De Capua, Nigel Watson, Alexey Zhelezov, Elena Graverini, B.R. Gruberg Cazon, Amanda May Donohoe, Valeriia Lukashenko, Jean François Marchand, Boleslaw Pietrzyk, Anna Lupato, Carlos Abellán Beteta, Konstantin Belous, Marco Poli Lener, B. Spaan, Daniel Patrick O'Hanlon, Giacomo Vitali, Marco Santimaria, Daniel Decamp, Jairo Alexis Rodriguez Lopez, S. Ponce, Lucio Anderlini, Oscar De Aguiar Francisco, U. Marconi, C. Weisser, S. Tolk, Valery Zhukov, Konrad Klimaszewski, Eliane Epple, Louis Lenard Gerken, S. Ek-In, Adriano Lai, A. Guth, Yutong Li, G. Liu, Miriam Gandelman, S. Monteil, Frederic Teubert, Christopher Burr, Dario de Simone, Michael Schmelling, Paul Andre Günther, J. B. Zonneveld, R. Calabrese, Oleg Stenyakin, A. Szabelski, Anna Danilina, Jakub Ryzka, Timothy Evans, George Lafferty, Marcelo Soares, Patrick Koppenburg, Artur Ukleja, Jose Lopes, Jakub Moron, X. Lyu, Carmen Giugliano, A. Maevskiy, Paolo Gandini, Marcello Rotondo, D. Zhang, Manuel Schiller, Marcos Romero Lamas, S. Schulte, P. Ibis, W. Krupa, S. Cadeddu, Lei Zhang, Simon Stemmle, Katharina Müller, P. Stefko, Philipp Roloff, Pere Gironella Gironell, J. S. Butter, M. Marinangeli, Michael Williams, Tatiana Gaintseva, Lorena Dieste Maronas, I. Williams, Anton Philippov, O. Schneider, Rudolf Oldeman, Roman Litvinov, Roel Aaij, Vadym Denysenko, Vasily Kudryavtsev, C. H. Murphy, Christopher Parkes, N. I. Voropaev, Jialu Wang, Felipe Luan Souza De Almeida, P. Spradlin, Francesca Dordei, A. Carbone, Jan Maratas, Jakub Jacek Malczewski, C. Gu, S. Bhasin, A. Camboni, O. Kot, Yipeng Sun, Iaroslava Bezshyiko, Ivan Shchemerov, Edoardo Franzoso, T. Ovsiannikova, Arnaud Robert, Thomas Latham, C. Patrignani, I. Carli, Julian Alexander Boelhauve, P. Collins, F. Pisani, F. Ferrari, K. R. Mattioli, V. Belavin, Murdo Traill, Alessandro Bertolin, D. Gerick, M. W. Slater, Sevda Esen, Ulrik Egede, L. Sun, Andrey Ustyuzhanin, T. Maltsev, Sajan Easo, Bernardo Adeva, Cibran Santamarina Rios, A. Dendek, Svende Braun, Diego Martinez Santos, Alessandro Petrolini, G. J. Kunde, S. Zhang, Danila Saranin, J. G. Smeaton, Marco Adinolfi, Adlène Hicheur, Benedict Donald C Westhenry, Stefania Ricciardi, Jifeng Hu, A. Merli, V. Tisserand, P. Gorbounov, T. Pajero, Karol Hennessy, Nikolay Nikitin, Marie Bachmayer, Alexandru Grecu, Thomas Ackernley, Marco Pappagallo, F. Redi, J. Hu, H. Li, K. Rinnert, Francesco Dettori, Adam Benjamin Morris, Jacopo Cerasoli, Gary Robertson, Sergey Gromov, Adam Davis, V. Pugatch, M. Hilton, Miguel Ramos Pernas, M. Féo, C. A. Aidala, Gaia Lanfranchi, Lex Marinus Greeven, Bhagyashree Pagare, Guy Wilkinson, Louis Henry, R. Calladine, Hilbrand Steffen Kuindersma, Marianna Fontana, C. M. Costa Sobral, D. Brundu, Niels Tuning, L. E. Yeomans, Luciano Pappalardo, D. Lancierini, M. Mulder, H. Cai, Paul Seyfert, C. Chen, Stefan Schael, Olivier Leroy, Yilong Wang, A. Venkateswaran, Arthur Marius Hennequin, Alessio Piucci, E. Santovetti, Yasmine Amhis, M. Atzeni, E. Grauges, Conor Fitzpatrick, Maxim Borisyak, Philippe d'Argent, X. Liang, Nuria Valls Canudas, A. Vorobyev, Dorothea Vom Bruch, Huanhuan Liu, Kristian Alexander Zarebski, Mariusz Witek, Mark Tobin, Michael Alexander, Renato Quagliani, Dmitrii Ilin, Q. Xu, Yongsheng Gao, Yanting Fan, Aleksei Andreianov, Harry Cliff, Wander Baldini, Victor Renaudin, Iain Longstaff, Anthony Gavin Downes, Julien Cogan, Bruno Souza De Paula, Jing Wang, Kenenbek Arzymatov, Adrian Casais Vidal, Dmitry Popov, G. Cavallero, Simon Akar, Matteo Giovannetti, V. Romanovskiy, Philippe Charpentier, Tomasz Fiutowski, Patrick Robbe, Robert Currie, Federico Alessio, Minh Tâm Tran, Christoph Frei, B. Quintana, Rainer Schwemmer, Pietro Marino, M. S. Rangel, Joel Closier, Matthew Birch, Kayleigh Anne Thomson, G. Panshin, Daniele Manuzzi, H. Malygina, J. L. Cobbledick, Abbie Jane Chadwick, B. Audurier, E. Maurice, T. Lesiak, F. Fleuret, I. Kostiuk, T. Mombächer, A. Bay, Sandra Amato, J. D. Roth, P. Campana, Victor Egorychev, Mikhail Shapkin, U. Uwer, Jinlin Fu, Jolanta Brodzicka, Biljana Mitreska, Alexey Dzyuba, K. Heijhoff, Y. Zhang, Yang Li, J. Qin, Gerwin Meier, Alex Pearce, Serena Maccolini, Jörg Marks, C. A. Chavez Barajas, Maria Vieites Diaz, Andrea Contu, A. Rollings, Xiaokang Zhou, Viacheslav Duk, Clara Remon Alepuz, Marcin Chrzaszcz, J. Plews, A. Ossowska, Liliana Congedo, Antonio Romero Vidal, Pascal Perret, G. Tuci, Abhijit Mathad, Z. Ren, A. Loi, Tomasz Skwarnicki, Sebastian Bachmann, Andrew George Morris, Polina Kravchenko, Thomas Ruf, A. Xu, M. Poliakova, Antonio Fernandez Prieto, Ivan Belyaev, Jan-Marc Basels, A. Artamonov, F. Reiss, Alexey Boldyrev, Artem Ryzhikov, Franz Muheim, G. H. Lovell, H. Dijkstra, M. Martinelli, Mark Richard James Williams, Flavio Fontanelli, Mikhail Zavertyaev, G. Raven, Alexander Bondar, Miroslaw Firlej, E. Shmanin, A. Kondybayeva, Juan Martin Otalora Goicochea, Laurent Dufour, V. Coco, Wouter Hulsbergen, Shuangli Yang, Zhihong Shen, Niladribihari Sahoo, Roger Forty, Frederic Machefert, Sheldon Stone, Domenico Galli, Lingzhu Bian, N. Serra, Darya Savrina, Paras Naik, Zoltan Mathe, Xiaoxue Han, Pablo Vazquez Regueiro, Nicola Neri, P. Ciambrone, Alison Tully, Michal Kreps, S. Poslavskii, G. Alkhazov, C. Meaux, Wojciech Wislicki, Mikhail Hushchyn, Sergey Strokov, Marco Guarise, V. Chobanova, C. Betancourt, Federico Lazzari, D. Murray, Marie Helene Schune, Q. Han, Paolo Carniti, E. Govorkova, M. Xu, Clara Matteuzzi, Quentin Fuehring, J. V. Mead, P. Mackowiak, Claire Prouve, Neville Harnew, Robbert Erik Geertsema, Eduard Ursov, Evelina Gersabeck, Barbara Passalacqua, Stefania Vecchi, Edward Brendan Shields, Angel Fernando Campoverde Quezada, Nicola Skidmore, Leonid Kravchuk, Maik Becker, Ettore Zaffaroni, Vasyl Dobishuk, Themistocles Bowcock, Gabriele Simi, Lukas Witola, Alberto Lusiani, A. Kharisova, Preema Rennee Pais, Biplab Dey, Lino Ferreira Lopes, Joan Ruiz Vidal, Miriam Lucio Martinez, N. Meinert, J. J. Walsh, Xuhao Yuan, D. Hynds, Francesco Polci, Michal Kazimierz Mazurek, M. Brodski, Z. Yang, Antonio Pellegrino, Kazuyoshi Carvalho Akiba, Matteo Rama, E. Dall'Occo, Sara Elizabeth Mitchell, Jan Langer, Eduardo Rodrigues, Michal Dziewiecki, Ana Barbara Rodrigues, Paula Garcia Moreno, Manuel Franco Sevilla, M. McCann, R. Kopecna, D. Gerstel, F. Keizer, A. Gomes, Federico Betti, P. Billoir, Yu Zhang, Maria Aranzazu Oyanguren, Sergio Gomez Fernandez, Jussara De Miranda, Phoebe Meredith Hamilton, G. Wormser, Vladimir Chulikov, Alexander Berezhnoy, Lakshan Ram Madhan Mohan, V. Obraztsov, Yue Pan, J. Heuel, J. Bhom, T. H. Hancock, V. Balagura, Denis Derkach, Erica Polycarpo, Rafael Silva Coutinho, Resmi Pk, M. Szymanski, Peter Griffith, Fergus Wilson, Elie Aslanides, Maciej Wojciech Dudek, Eric Thomas, S. Eisenhardt, Burkhard Schmidt, A. Chubykin, Adalberto Sciubba, Mitesh Patel, J. M. Durham, S. Nieswand, G. J. Pomery, Tatsuya Nakada, Olaf Steinkamp, G. Chatzikonstantinidis, Sergei Popov, C. D'Ambrosio, M. W. Majewski, M. Zeng, Yangheng Zheng, G. Bencivenni, M. S. Rudolph, Arnau Brossa Gonzalo, M. Schellenberg, Paula Alvarez Cartelle, T. Kirn, D. Wiedner, Sook Hyun Lee, Marco Clemencic, L. Martinazzoli, Daniel Charles Craik, Anatoliy Dovbnya, Artur Ishteev, Cameron Thomas Dean, M. Gersabeck, A. Vagner, F. Baryshnikov, Maria Flavia Cicala, K. Heinicke, D. Bobulska, Benjamin Couturier, Mateusz Goncerz, Alberto dos Reis, Milosz Zdybal, G. Pietrzyk, Stephen Farry, S. Escher, Michel De Cian, V. S. Kirsebom, Silvia Ferreres Sole, Antonios Papanestis, Alessandro Cardini, Maarten Van Dijk, Jibo He, H. M. Wark, Paul Nathaniel Swallow, Silvia Gambetta, Timothy Gershon, Youen Kang, S. Blusk, Daniel Vieira, Saverio Mariani, Vukan Jevtic, Tara Shears, Vitaly Vorobyev, Basem Khanji, D. Marangotto, Thomas Blake, Chishuai Wang, Marek Idzik, Lars Eklund, M. Materok, Anton Poluektov, Lorenzo Sestini, Achim Vollhardt, M. G. Chapman, Rafel Manera Escalero, Leon David Carus, Ziad Ajaltouni, Dominik Stefan Mitzel, Barbara Sciascia, Liliet Calero Diaz, Guillermo Loustau, Thomas Hadavizadeh, Raymond Mountain, Markus Frank, Donal Hill, Scott Ely, Beatriz Garcia Plana, Gianluca Zunica, Alexander Leflat, Chung Nguyen-Mau, Karlis Dreimanis, Sophie Elizabeth Hollitt, Raja Nandakumar, Claudio Gotti, S. Aiola, Oscar Boente Garcia, Sebastian Neubert, Hossein Afsharnia, Dominik Müller, Daniel Lacarrere, Julian Lomba Castro, P. E. L. Clarke, David Websdale, Giulia Frau, Lishuang Ma, F. Archilli, Alexander Semennikov, W. Hu, Thomas Grammatico, S. Koliiev, Peter Svihra, S. Simone, Gregory Ciezarek, M. Veronesi, E. Gabriel, J. Sun, A. Beiter, Olivier Deschamps, Lei Li, Laura Promberger, Luis Alberto Granado Cardoso, Cynthia Nunez, Vinicius Franco Lima, Sergei Kholodenko, A. Konoplyannikov, Giuseppe Martellotti, B. Malecki, Wojciech Krzemien, Alessio Sarti, Thierry Gys, Alexandre Brea Rodriguez, Jeremy Dalseno, Oleksandr Zenaiev, Eleonora Luppi, Albert Bursche, L. Douglas, Donatella Lucchesi, Marilisa De Serio, Liupan An, M. E. Stramaglia, S. Maddrell-Mander, Petr Fedin, B. Batsukh, M. Bjørn, Carla Göbel, S. Cali, Sneha Malde, William Barter, Andrey Golutvin, F. Blanc, Jaap Velthuis, I. V. Gorelov, Giovanni Bassi, Lucas Meyer Garcia, T. Harrison, Yu Lu, K. Wyllie, Mikhail Mikhasenko, Andrea Bizzeti, Youhua Yang, Vincenzo Vagnoni, Giovanni Carboni, Mauro Piccini, A. Valassi, Piera Muzzetto, Luke George Scantlebury Smead, Jonas Nathanael Eschle, Guido Haefeli, Z. Xiang, Zhenzi Wang, Xabier Cid Vidal, Dylan Jaide White, Michela Garau, Marko Milovanovic, Christopher Jones, Naylya Sagidova, A. Alfonso Albero, B. Rachwal, Claudia Bertella, E. Ben-Haim, M. P. Blago, Kamil Leszek Fischer, Aleksandra Snoch, M. Wang, Paolo Durante, Maitreyee Mukherjee, Luis Miguel Garcia Martin, Ignacio Bediaga, Desmond Mzamo Shangase, Kyung Eun Kim, Martino Borsato, Lev Shekhtman, Carina Trippl, Lucia Grillo, Aleksandr Solovev, Xuesong Liu, Tabitha Halewood-leagas, J. P. Grabowski, Jingzhou Fan, H. Mu, Nikolay Bondar, Roland Bernet, Paul Soler, Marcel Merk, Massimiliano Ferro-Luzzi, Fidan Suljik, Sara Celani, Leandro De Paula, Tjeerd Ketel, Niko Neufeld, V. Placinta, Juan Mauricio, N. V. Raab, Emilie Bertholet, S. Petrucci, S. Zucchelli, Evangelos Leonidas Gkougkousis, Y. Yao, Zhihao Xu, Tengiz Kvaratskheliya, Cristina Sanchez Gras, Daniel Johnson, A. Gioventù, Tamaki Holly Mcgrath, D. Melnychuk, P. Kopciewicz, K. Petridis, Beat Jost, Marco Cattaneo, Agnieszka Oblakowska-Mucha, F. Kress, Stefan-Gabriel Chitic, Joseph David Shupperd, Felipe Andres Garcia Rosales, André Massafferri, A. Mauri, Oleg Maev, Luigi Del Buono, L. Xu, Martina Ferrillo, Matthew Needham, Carlos Vázquez Sierra, Giovanni Punzi, R. Newcombe, A. Battig, L. Shchutska, Eluned Smith, D. Pereima, A. Mödden, Ronan McNulty, Shantam Taneja, Matthew Kenzie, Zehua Xu, Daria Strekalina, Fionn Caitlin Ros Bishop, Juan Baptista Leite, K. Prasanth, Juan Jose Saborido Silva, Celestina Satriano, A. Seuthe, Thi Dung Nguyen, Krzysztof Swientek, Matthew James Tilley, Xavier Vilasis-Cardona, Nathanael Farley, F. Jiang, Tai-Hua Lin, Marina Artuso, Olga Madejczyk, D. Maisuzenko, Simone Capelli, Y. Luo, Ouail Kitouni, Johannes Albrecht, Malcolm John, Brian Meadows, Sophie Baker, F. Bedeschi, Roberta Cardinale, Roberta Santacesaria, Charlotte Barbara Van Hulse, I. Polyakov, Matthias Karacson, Xiaotao Huang, Elisabetta Spadaro Norella, Mark Wilkinson, Roland Waldi, B. G. Siddi, Oleg Yushchenko, Heinrich Schindler, Matthew Charles, Maksim Karpov, M. J. Bradley, Nathan Jurik, Zishuo Yang, Jianqiao Wang, Julián García Pardiñas, Biagio Saitta, H. Yin, Stanislav Luchuk, Mihai Straticiuc, S. Didenko, Gerco Onderwater, Christoph Langenbruch, Gianluigi Casse, D. Dutta, K. Ivshin, Daniel Joachim Unverzagt, W. Byczynski, Sara Sellam, Diego Alejandro Milanes, M. Andreotti, Sergey Barsuk, Ruiting Ma, T. Colombo, Oliver Lantwin, K. Gizdov, A. Sergi, G. Sarpis, Richard Lane, William Dean, Serhii Cholak, Andrew McNab, Pasquale Di Nezza, Giovanni Valenti, Davide Pinci, Patrick Owen, Michael Joseph Morello, Giampiero Mancinelli, M. Hecker, Vladimir Gligorov, M. Pili, Mauro Morandin, S. Belin, Philippe Ghez, W. Funk, Guanghua Gong, Hangyi Wu, Christopher John Parkinson, Lluis Garrido, Jennifer Clare Smallwood, Anatoly Butkevich, Minaugas Sarpis, Fernando Martinez Vidal, David Sanchez Gonzalo, Patricia Camargo Magalhaes, Michele Veltri, Alessia Satta, Sai-Juan Chen, Fedor Ratnikov, Marcin Kucharczyk, Florin Maciuc, Marco Petruzzo, Jacco de Vries, Maximilien Chefdeville, Luca Tomassetti, Marian Stahl, Jana Crkovská, A. Buonaura, F. Desse, Philip Ilten, Gloria Corti, V. Bellee, Rolf Lindner, Y. Gan, Stefano Perazzini, H.-P. Dembinski, Ivan Solovyev, Blake Leverington, D. Y. Tou, Fernanda Goncalves Abrantes, B. K. Jashal, V. Lisovskyi, Christophe Haen, Martinus van Beuzekom, E. Millard, Pascal Vincent, Lorenzo Capriotti, Nikita Kazeev, Jingyi Xu, Steffen Georg Weber, Rizwaan Adeeb Mohammed, A. Jawahery, Diego Torres Machado, H. Pullen, Renaud Le Gac, Jie Yu, Matteo Palutan, A. Pastore, Thomas Boettcher, M. Bartolini, R. A. Fini, Roberto Ribatti, A. Ene, Lorenzo Pica, A. Palano, Tomasz Szumlak, D. Berninghoff, Y. Zhou, M. Schubiger, Rafal Dominik Krawczyk, David Hutchcroft, R. I. Rabadan Trejo, Eva Vilella Figueras, M. Reboud, M. Saur, Igor Skiba, and Wenbin Qian

Subjects
Physics, Quantum chromodynamics, Particle physics, Multidisciplinary, Strangeness, 010502 geochemistry & geophysics, Quarkonium, Lambda, 01 natural sciences, Pentaquark, Luminosity, Excited state, High Energy Physics::Experiment, Invariant mass, 0105 earth and related environmental sciences
Abstract

First evidence of a structure in the $J/\psi{\Lambda}$ invariant mass distribution is obtained from an amplitude analysis of$\Xi_b^-{\rightarrow}J/\psi{\Lambda}K^-$ decays. The observed structure is consistent with being due to a charmonium pentaquark with strangeness with a significance of $3.1\sigma$ including systematic uncertainties and look-elsewhere effect. Its mass and width are determined to be $4458.8\pm2.9^{+4.7}_{-1.1}$ MeV and $17.3\pm6.5^{+8.0}_{-5.7}$ MeV, respectively, where the quoted uncertainties are statistical and systematic. The structure is also consistent with being due to two resonances. In addition, the narrow excited $\Xi^-$ states, $\Xi(1690)^-$ and $\Xi(1820)^-$, are seen for the first time in a $\Xi^-_b$ decay, and their masses and widths are measured with improved precision. The analysis is performed using $pp$ collision data corresponding to a total integrated luminosity of 9 fb$^{-1}$, collected with the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV.

Published
2021

36. Introduction to Special Relativity

Author

Becchi, Carlo Maria, D’Elia, Massimo, Cini, Michele, editor, Forte, Stefano, editor, Inguscio, Massimo, editor, Montagna, Guida, editor, Nicrosini, Oreste, editor, Pacini, Franco, editor, Peliti, Luca, editor, Rotondi, Alberto, editor, Becchi, Carlo Maria, and D’Elia, Massimo

Published
2010
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40. Top Physics at the LHC

Author

Dotti, Andrea, Carlino, Gianpaolo, editor, D’Ambrosio, Giancarlo, editor, Merola, Leonardo, editor, Paolucci, Pierluigi, editor, and Ricciardi, Giulia, editor

Published
2008
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42. The nature of the Λ(1405)

Author

Oset, E., Geng, L. S., Döring, M., Hammer, Hans-Werner, editor, Kleber, Vera, editor, Thoma, Ulrike, editor, and Schmieden, Hartmut, editor

Published
2008
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43. Recent BESII results

Author

Li, Weiguo, Hammer, Hans-Werner, editor, Kleber, Vera, editor, Thoma, Ulrike, editor, and Schmieden, Hartmut, editor

Published
2008
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44. The Baryons

Author

Povh, Bogdan, Rith, Klaus, Scholz, Christoph, Zetsche, Frank, Lavelle, Martin, Povh, Bogdan, Rith, Klaus, Scholz, Christoph, Zetsche, Frank, and Lavelle, Martin

Published
2008
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45. Circular Polarization of a γ-Quantum in the Radiative Decay $$ H\Rightarrow \overline{ff}\upgamma . $$ Part I

Author

S. K. Abdullayev and É. Sh. Omarova

Subjects
Condensed Matter::Quantum Gases, 010302 applied physics, Physics, 010308 nuclear & particles physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, General Physics and Astronomy, Function (mathematics), Fermion, 01 natural sciences, Helicity, Standard Model, 0103 physical sciences, Higgs boson, Invariant mass, Atomic physics, Quantum, Circular polarization
Abstract

The process of radiative decay of a Higgs boson into a fermion-antifermion pair $$ H\Rightarrow \overline{ff}\upgamma . $$ is investigated within the framework of the Standard Model. Taking into account the helicity of fermions and the circular polarization of a γ-quantum, an analytical expression for the decay width has been obtained. Circular polarization of the γ-quantum is examined in detail as a function of the angle θ and the invariant mass x of the fermion pair.

Published
2021

46. Structure Functions for the Exclusive π+ n and π0 p Channels of Electroproduction from Data Measured with the CLAS Detector

Author

V. V. Chesnokov, M. M. Davydov, B. S. Ishkhanov, V. I. Mokeev, A. A. Golubenko, E. L. Isupov, A. D. Bulgakov, and A. G. Nasrtdinov

Subjects
Physics, Transverse plane, Particle physics, Pion, Photon, Excited state, Hadron, Detector, General Physics and Astronomy, High Energy Physics::Experiment, Invariant mass, Nuclear Experiment, Nucleon
Abstract

A procedure is described for finding nonpolarized transverse, longitudinal, and polarized longitudinal-transverse and longitudinal-transverse structure functions derived from data on the differential cross sections of exclusive channels of π+n and π0p electroproduction measured with the CLAS detector. The measured cross sections cover the wide kinematic range of W < 1.7 GeV in terms of invariant mass of a finite hadronic system and photon virtuality in the range of Q2 < 5.0 GeV2. The exclusive structure functions obtained from a single pion production channel play an important role in studying the structure of excited nucleon states.

Published
2021

47. Drell-Yan q T resummation of fiducial power corrections at N3LL

Author

Frank J. Tackmann, Markus A. Ebert, Johannes K. L. Michel, and Iain W. Stewart

Subjects
Drell-Yan process, Nuclear Theory, lepton, higher-order, transverse momentum [resummation], Hadron, low [transverse momentum], momentum spectrum [transverse momentum], QC770-798, High Energy Physics - Experiment, transverse momentum: momentum spectrum, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), final-state interaction [radiation], structure function, scattering [p p], quantum electrodynamics, Invariant mass, Resummation, Physics, CMS, resummation: transverse momentum, Observable, Effective Field Theories, ATLAS, tensor, High Energy Physics - Phenomenology, radiation: final-state interaction, resummation, Production (computer science), p p: scattering, Nuclear and High Energy Physics, Particle physics, transverse momentum: low, FOS: Physical sciences, production [p p], hadronic, Nuclear Theory (nucl-th), Factorization, factorization, Nuclear and particle physics. Atomic energy. Radioactivity, quantum chromodynamics, recoil, Perturbative QCD, ddc:530, Order (ring theory), final state [lepton], lepton: final state, High Energy Physics::Experiment, Lepton
Abstract

Journal of high energy physics 04(4), 102 (2021). doi:10.1007/JHEP04(2021)102, We consider Drell-Yan production pp ��� V$^{*}$X ��� LX at small q$_{T}$ ��� Q, where q$_{T}$ and Q are the total transverse momentum and invariant mass of the leptonic final state L. Experimental measurements require fiducial cuts on L, which in general introduce enhanced, linear power corrections in q$_{T}$/Q. We show that they can be unambiguously predicted from factorization, and resummed to the same order as the leading-power contribution. For the fiducial q$_{T}$ spectrum, they constitute the complete linear power corrections. We thus obtain predictions for the fiducial q$_{T}$ spectrum to N$^{3}$LL and next-to-leading-power in q$_{T}$/Q. Matching to full NNLO ($ {\alpha}_s^2 $), we find that the linear power corrections are indeed the dominant ones, and once included by factorization, the remaining fixed-order corrections become almost negligible below q$_{T}$ ��� 40 GeV. We also discuss the implications for more complicated observables, and provide predictions for the fiducial ��$^{*}$ spectrum at N$^{3}$LL+NNLO. We find excellent agreement with ATLAS and CMS measurements of q$_{T}$ and ��$^{*}$. We also consider the $ {p}_T^{\mathrm{\ell}} $ spectrum. We show that it develops leptonic power corrections in q$_{T}$/(Q ��� 2$ {p}_T^{\mathrm{\ell}} $), which diverge near the Jacobian peak $ {p}_T^{\mathrm{\ell}} $ ��� Q/2 and must be kept to all powers to obtain a meaningful result there. Doing so, we obtain for the first time an analytically resummed result for the $ {p}_T^{\mathrm{\ell}} $ spectrum around the Jacobian peak at N$^{3}$LL+NNLO. Our method is based on performing a complete tensor decomposition for hadronic and leptonic tensors. We show that in practice this is equivalent to often-used recoil prescriptions, for which our results now provide rigorous, formal justification. Our tensor decomposition yields nine Lorentz-scalar hadronic structure functions, which for Z/��$^{*}$ ��� ������ or W ��� ����� directly map onto the commonly used angular coefficients, but also holds for arbitrary leptonic final states. In particular, for suitably defined Born-projected leptons it still yields a LO-like angular decomposition even when including QED final-state radiation. Finally, we also discuss the application to q$_{T}$ subtractions. Including the unambiguously predicted fiducial power corrections significantly improves their performance, and in particular makes them applicable near kinematic edges where they otherwise break down due to large leptonic power corrections., Published by SISSA, [Trieste]

Published
2021
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49. Measurement of the W Mass at LEP

Author

Roth, Stefan, Fujimori, A., editor, Kühn, J., editor, Müller, Th., editor, Steiner, F., editor, Trümper, J., editor, Varma, C., editor, Wölfle, P., editor, and Roth, Stefan

Published
2007
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50. W-Boson Pair Production

Author

Roth, Stefan, Fujimori, A., editor, Kühn, J., editor, Müller, Th., editor, Steiner, F., editor, Trümper, J., editor, Varma, C., editor, Wölfle, P., editor, and Roth, Stefan

Published
2007
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