15,597 Works

Flavour Violating Axions

Luca Di Luzio
I review the physics case for flavour violating axions. In particular, I argue that relaxing the assumption of the universality of the Peccei-Quinn current opens up new pathways, including: the relaxation of the Supernova bound on the axion mass, a possible connection with the Standard Model flavour puzzle and the experimental opportunity of discovering the axion via flavoured axion searches.

A highly granular SiPM-on-tile calorimeter prototype

Felix Sefkow & Frank Simon
18th International Conference on Calorimetry in Particle Physics (CALOR 2018), Eugene, OR, USA, 21 May 2018 - 25 May 2018; Journal of physics / Conference series Conference series [...] 1162, 012012 - (2019). doi:10.1088/1742-6596/1162/1/012012

The ILC as a natural SUSY discovery machine and precision microscope: from light higgsinos to tests of unification

Howard Baer, Mikael Berggren, Keisuke Fujii, Jenny List, Suvi-Leena Lehtinen, Tomohiko Tanabe & Jacqueline Yan
The requirement of electroweak naturalness in simple supersymmetric models implies the existence of a cluster of four light higgsinos with mass $\sim 100-300$\,GeV, the lighter the better. While such light compressed spectra may be challenging to observe at LHC, the International Linear $e^+e^-$ Collider (ILC) with $\sqrt{s}>2m_{\rm higgsino}$ would serve as both a SUSY discovery machine and a precision microscope. We study higgsino pair production signatures at the ILC based on full, \texttt{Geant4-}based simulation of...

Top-quark physics at the CLIC electron-positron linear collider

H. Abramowicz, N. Alipour Tehrani, D. Arominski, Y. Benhammou, M. Benoit, J.-J. Blaising, M. Boronat, Oleksandr Borysov, R. R. Bosley, I. Božović Jelisavčić, I. Boyko, S. Brass, E. Brondolin, P. Bruckman De Renstrom, M. Buckland, P. N. Burrows, M. Chefdeville, S. Chekanov, T. Coates, D. Dannheim, M. Demarteau, H. Denizli, G. Durieux, G. Eigen, K. Elsener … & A. Zhemchugov
Journal of high energy physics 2019(11), 3 (2019). doi:10.1007/JHEP11(2019)003

Beyond the Standard Model searches at HERA

Oleksii Turkot
XXIX International Symposium on Lepton Photon Interactions at High Energies, LP2019, Toronto, Canada, 5 Aug 2019 - 10 Aug 2019; Trieste : SISSA, Proceedings of Science 367, 367/077 (2019). doi:https://doi.org/10.22323/1.367.0077

Invisible and displaced dark matter signatures at Belle II

Michael Duerr, Torben Ferber, Christopher Hearty, Felix Kahlhoefer, Kai Schmidt-Hoberg & Patrick Tunney
Many dark matter models generically predict invisible and displaced signatures at Belle II, but even striking events may be missed by the currently implemented search programme because of inefficient trigger algorithms. Of particular interest are final states with a single photon accompanied by missing energy and a displaced pair of electrons, muons, or hadrons. We argue that a displaced vertex trigger will be essential to achieve optimal sensitivity at Belle II. To illustrate this point,...

Tunka-Rex: A radio antenna array for the Tunka experiment

F. G. Schröder, D. Besson, N. M. Budnev, O. A. Gress, A. Haungs, R. Hiller, Y. Kazarina, M. Kleifges, A. Konstantinov, E. E. Korosteleva, D. Kostunin, O. Krömer, L. A. Kuzmichev, R. R. Mirgazov, A. Pankov, V. V. Prosin, G. I. Rubtsov, C. Rühle, V. Savinov, J. Stockham, M. Stockham, E. Svetnitsky, R. Wischnewski & A. Zagorodnikov
5TH INTERNATIONAL WORKSHOP ON ACOUSTIC AND RADIO EEV NEUTRINO DETECTION ACTIVITIES: ARENA 2012, Erlangen, Germany; AIP conference proceedings 1535, 111 (2013). doi:10.1063/1.4807531

Spatial separation of pyrrole and pyrrole-water clusters

Melby Johny, Jolijn Onvlee, Thomas Kierspel, Helen Bieker, Sebastian Trippel & Jochen Küpper
Chemical physics letters 721, 149 - 152 (2019). doi:10.1016/j.cplett.2019.01.052

Electronic Structure of Aqueous $[Co(bpy)_{3}]^{2+/3+}$ Electron Mediators

Sreeju Sreekantan Nair Lalithambika, Ronny Golnak, Bernd Winter & Kaan Atak
Inorganic chemistry 58(8), 4731 - 4740 (2019). doi:10.1021/acs.inorgchem.9b00167

Search for an invisibly decaying $Z^{\prime}$ boson at Belle II in $e^+ e^- \to \mu^+ \mu^- (e^{\pm} \mu^{\mp})$ plus missing energy final states

I. Adachi, P. Ahlburg, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, T. Aziz, V. Babu, S. Baehr, P. Bambade, Sw. Banerjee, V. Bansal, M. Barrett, J. Baudot, J. Becker, P. K. Behera, J. V. Bennett, E. Bernieri, F. U. Bernlochner, M. Bertemes, M. Bessner … & V. I. Zhukova
Using data collected by the Belle II experiment during 2018 at the SuperKEKB collider, we perform the first searches for the invisible decay of a $Z^{\prime}$ in the process $e^+ e^- \to \mu^+ \mu^- Z^{\prime}$ and of a lepton-flavor-violating $Z^{\prime}$ in $e^+ e^- \to e^{\pm} \mu^{\mp} Z^{\prime}$. We do not find any excess of events and set 90$\%$ credibility level upper limits on the cross sections of these processes. We translate the former, in the...

Stress-controlled decomposition routes in cubic AlCrN films assessed by in-situ high-temperature high-energy grazing incidence transmission X-ray diffraction

Michael Meindlhumer, S. Klima, N. Jäger, Andreas Stark, H. Hruby, C. Mitterer, J. Keckes & R. Daniel
Scientific reports 9(1), 18027 (2019). doi:10.1038/s41598-019-54307-7

High-Repetition-Rate Seeding Schemes Using a Resonator-Amplifier Setup

Sven Ackermann, Bart Faatz, Gianluca Geloni, Vanessa Grattoni, Wolfgang Hillert, Christoph Lechner, Georgia Paraskaki, Svitozar Serkez & Takanori Tanikawa
39th International Free-Electron Laser Conference, FEL19, Hamburg, Germany, 26 Aug 2019 - 30 Aug 2019; JACoW Publishing, Geneva, Switzerland 222-225 (2019). doi:10.18429/JACOW-FEL2019-TUP073

Straightness Correction of Ballistic Trajectories

Vladimir Balandin, Winfried Decking, Nina Golubeva & Matthias Scholz
10th International Particle Accelerator Conference, IPAC'19, Melbourne, Australia, 19 May 2019 - 24 May 2019; JACoW Publishing, Geneva, Switzerland 101-103 (2019). doi:10.18429/JACOW-IPAC2019-MOPGW016

Photoemission and Degradation of Semiconductor Photocathode

Pengwei Huang, Houjun Qian, Yingchao Du, Wenhui Huang, Zhen Zhang & Chuanxiang Tang
Physical review accelerators and beams 22(12), 123403 (2019). doi:10.1103/PhysRevAccelBeams.22.123403

Investigating volume effects for N$_f$=2 twisted clover fermions at the physical point

Constantia Alexandrou, Simone Bacchio, Martha Constantinou, Dean Howarth, Colin Lauer, Kyriakos Hadjiyiannakou, Giannis Koutsou & Karl Jansen
The 36th Annual International Symposium on Lattice Field Theory, Michigan, USA, 22 Jul 2019 - 28 Jul 2019; PoS(LATTICE 2018)314 (2019).

FLAG Review 2019

S. Aoki, Y. Aoki, D. Becirevic, T. Blum, G. Colangelo, S. Collins, M. Della Morte, P. Dimopoulos, S. Dürr, H. Fukaya, M. Golterman, Steven Gottlieb, R. Gupta, S. Hashimoto, U. M. Heller, G. Herdoiza, R. Horsley, A. Jüttner, T. Kaneko, , E. Lunghi, R. Mawhinney, A. Nicholson, T. Onogi, C. Pena … & H. Wittig
We review lattice results related to pion, kaon, $D$-meson, $B$-meson, and nucleon physics with the aim of making them easily accessible to the nuclear and particle physics communities. More specifically, we report on the determination of the light-quark masses, the form factor $f_+(0)$ arising in the semileptonic $K \to \pi$ transition at zero momentum transfer, as well as the decay constant ratio $f_K/f_\pi$ and its consequences for the CKM matrix elements $V_{us}$ and $V_{ud}$. Furthermore,...

H.E.S.S. and Fermi-LAT observations of PSR B1259-63/LS 2883 during its 2014 and 2017 periastron passages

, H. Abdalla, R. Adam, F. Aharonian, F. Ait Benkhali, E. O. Angüner, M. Arakawa, C. Arcaro, C. Armand, H. Ashkar, M. Backes, V. Barbosa Martins, M. Barnard, Y. Becherini, D. Berge, K. Bernlöhr, R. Blackwell, M. Böttcher, C. Boisson, J. Bolmont, S. Bonnefoy, J. Bregeon, M. Breuhaus, F. Brun, P. Brun … & P. Bordas
Astronomy and astrophysics PSRB125, 16 (2019).

Science Case for a Wide Field-of-View Very-High-Energy Gamma-Ray Observatory in the Southern Hemisphere

A. Albert, R. Alfaro, H. Ashkar, C. Alvarez, J. Álvarez, J. C. Arteaga-Velázquez, H. A. Ayala Solares, R. Arceo, J. A. Bellido, S. BenZvi, T. Bretz, C. A. Brisbois, A. M. Brown, F. Brun, K. S. Caballero-Mora, A. Carosi, A. Carramiñana, S. Casanova, P. M. Chadwick, G. Cotter, S. Coutiño De León, P. Cristofari, S. Dasso, E. De La Fuente, B. L. Dingus … & H. Zhou
72 pp. (2019).

Metastable solidification pathways of undercooled eutectic $CoSi–CoSi_{2}$ alloys

Sangho Jeon, Matthias Kolbe, Victoria Kaban, Gabrielle String, Andre Cleaver, Ivan Kaban, Olga Shuleshova, Jianrong Gao & Douglas M. Matson
Acta materialia 176, 43 - 52 (2019). doi:10.1016/j.actamat.2019.06.048

Prospects for the characterization of the VHE emission from the Crab Nebula and Pulsar with the Cherenkov Telescope Array

Enrique Mestre, Emma De Oña Wilhelmi, Roberta Zanin, Diego F. Torres & Luigi Tibaldo
Monthly notices of the Royal Astronomical Society 492(1), 708 - 718 (2020). doi:10.1093/mnras/stz3421

Itinerant ferromagnetism of the Pd-terminated polar surface of $PdCoO_{2}$

Federico Mazzola, Veronika Sunko, Seunghyun Khim, Helge Rosner, Pallavi Kushwaha, Oliver J. Clark, Lewis Bawden, Igor Marković, Timur K. Kim, Moritz Hoesch, Andrew P. Mackenzie & Phil D. C. King
Proceedings of the National Academy of Sciences of the United States of America 115(51), 12956 - 12960 (2018). doi:10.1073/pnas.1811873115

Constraining the magnetic field in the EM170817 ejecta with H.E.S.S. observations

Stefan Ohm
36th International Cosmic Ray Conference, Madison, USA, 24 Jul 2019 - 1 Aug 2019; PoS(ICRC2019)756 (2019).

The Cherenkov Telescope Array view of the Galactic Center region

Aion Viana, Sofia Ventura, Daniele Gaggero, Dario Grasso, Dmitry Malyshev, Karl Kosack, Stefan Funk, Antonino D'Ai, Rafael Alves Batista, Rebecca Blackwell, Aleksandr Burtovoi, Patrizia A. Caraveo, Masha Chernyakova, Paolo Da Vela, Giovanni De Cesare, Elisabete M. De Gouveia Dal Pino, Emma De Oña Wilhelmi, Miroslav Filipovic, Michele Fiori, Ignacio A. Minaya, Juan Carlos Rodríguez-Ramírez, Gavin Rowell, Andrea Rugliancich, Olga Sergijenko, Luca Zampieri … & CTA Consortium
36th International Cosmic Ray Conference, Madison, Wisconsin, USA, 24 Jul 2019 - 1 Aug 2019; PoS(ICRC2019)817 (2019).

The H.E.S.S. experiment : current status and future prospects

Heike Prokoph &
36th International Cosmic Ray Conference, Madison, USA, 24 Jul 2019 - 1 Aug 2019; PoS(ICRC2019)656 (2019).

Resummed inclusive cross-section in ADD model at N$^3$LL+NNLO

Goutam Das, M. C. Kumar & Kajal Samanta
We present three loop soft-plus-virtual (SV) corrections to the spin-2 production at the Large Hadron Collider (LHC). For this calculation, we make use of the recently computed quark and gluon three loop form factors for the spin-2 production, the universal soft-collinear coefficients as well as the mass factorization kernels. The SV coefficients are presented up to next-to-next-to-next-to leading order (N$^3$LO). We also use these coefficients at three loops to compute the resummed prediction for inclusive...

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