high energy muon
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2021 ◽  
Vol 2021 (12) ◽  
Author(s):  
Tao Han ◽  
Wolfgang Kilian ◽  
Nils Kreher ◽  
Yang Ma ◽  
Jürgen Reuter ◽  
...  

Abstract We explore the sensitivity of directly testing the muon-Higgs coupling at a high-energy muon collider. This is strongly motivated if there exists new physics that is not aligned with the Standard Model Yukawa interactions which are responsible for the fermion mass generation. We illustrate a few such examples for physics beyond the Standard Model. With the accidentally small value of the muon Yukawa coupling and its subtle role in the high-energy production of multiple (vector and Higgs) bosons, we show that it is possible to measure the muon-Higgs coupling to an accuracy of ten percent for a 10 TeV muon collider and a few percent for a 30 TeV machine by utilizing the three boson production, potentially sensitive to a new physics scale about Λ ∼ 30 − 100 TeV.


2021 ◽  
Vol 16 (11) ◽  
pp. C11008
Author(s):  
V.Y. Dik ◽  
V.A. Allakhverdyan ◽  
A.D. Avrorin ◽  
A.V. Avrorin ◽  
V.M. Aynutdinov ◽  
...  

Abstract The high-energy muon neutrino events of the IceCube telescope, that are triggered as neutrino alerts in one of two probability ranks of astrophysical origin, “gold” and “bronze”, have been followed up by the Baikal-GVD in a fast quasi-online mode since September 2020. Search for correlations between alerts and GVD events reconstructed in two modes, muon-track and cascades (electromagnetic or hadronic showers), for the time windows ±1 h and ±12 h does not indicate statistically significant excess of the measured events over the expected number of background events. Upper limits on the neutrino fluence will be presented for each alert.


2021 ◽  
Vol 2021 (10) ◽  
Author(s):  
Pouya Asadi ◽  
Rodolfo Capdevilla ◽  
Cari Cesarotti ◽  
Samuel Homiller

Abstract A high energy muon collider can provide new and complementary discovery potential to the LHC or future hadron colliders. Leptoquarks are a motivated class of exotic new physics models, with distinct production channels at hadron and lepton machines. We study a vector leptoquark model at a muon collider with $$ \sqrt{s} $$ s = 3, 14 TeV within a set of both UV and phenomenologically motivated flavor scenarios. We compute which production mechanism has the greatest reach for various values of the leptoquark mass and the coupling between leptoquark and Standard Model fermions. We find that we can probe leptoquark masses up to an order of magnitude beyond $$ \sqrt{s} $$ s with perturbative couplings. Additionally, we can also probe regions of parameter space unavailable to flavor experiments. In particular, all of the parameter space of interest to explain recent low-energy anomalies in B meson decays would be covered even by a $$ \sqrt{s} $$ s = 3 TeV collider.


2021 ◽  
Vol 103 (7) ◽  
Author(s):  
Tao Han ◽  
Zhen Liu ◽  
Lian-Tao Wang ◽  
Xing Wang

2019 ◽  
Author(s):  
Jan Soedingrekso ◽  
Alexander Sandrock ◽  
Wolfgang Rhode

2019 ◽  
Author(s):  
Christian Dreisbach ◽  
Jan Friedrich ◽  
Martin Hoffmann ◽  
Alexander Inglessi ◽  
Eva Kabuß ◽  
...  

2018 ◽  
Vol 78 (11) ◽  
Author(s):  
C. Adolph ◽  
M. Aghasyan ◽  
R. Akhunzyanov ◽  
M. G. Alexeev ◽  
G. D. Alexeev ◽  
...  

2016 ◽  
Vol 116 ◽  
pp. 02001
Author(s):  
Evangelia Drakopoulou ◽  
Christos Markou ◽  
Ekaterini Tzamariudaki ◽  
Konstantinos Pikounis

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