scholarly journals Flavor and CP violations from sleptons at the muon collider

1998 ◽  
Author(s):  
Hsin-Chia Cheng
Keyword(s):  
Cp Violations ◽  
Muon Collider

scholarly journals Electroweak couplings of the Higgs boson at a multi-TeV muon collider

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Tao Han ◽  
Da Liu ◽  
Ian Low ◽  
Xing Wang
Keyword(s):  
Higgs Boson ◽  
Muon Collider

scholarly journals Measuring the quartic Higgs self-coupling at a multi-TeV muon collider

2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
M. Chiesa ◽  
F. Maltoni ◽  
L. Mantani ◽  
B. Mele ◽  
F. Piccinini ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Center Of Mass ◽  
Mass Energy ◽  
Simple Analysis ◽  
Proton Proton ◽  
Coupling Interaction ◽  
Center Of Mass Energy ◽  
Muon Collider ◽  
Better Than

Abstract Measuring the shape of the Higgs boson potential is of paramount importance, and will be a challenging task at current as well as future colliders. While the expectations for the measurement of the trilinear Higgs self-coupling are rather promising, an accurate measurement of the quartic self-coupling interaction is presently considered extremely challenging even at a future 100 TeV proton-proton collider. In this work we explore the sensitivity that a muon collider with a center of mass energy in the multi-TeV range and luminosities of the order of 1035cm−2s−1, as presently under discussion, might provide, thanks to a rather large three Higgs-boson production and to a limited background. By performing a first and simple analysis, we find a clear indication that a muon collider could provide a determination of the quartic Higgs self-coupling that is significantly better than what is currently considered attainable at other future colliders.

scholarly journals Hunting wino and higgsino dark matter at the muon collider with disappearing tracks

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Rodolfo Capdevilla ◽  
Federico Meloni ◽  
Rosa Simoniello ◽  
Jose Zurita
Keyword(s):  
Dark Matter ◽  
Simple Strategy ◽  
Physics Program ◽  
Daunting Task ◽  
Muon Collider ◽  
New States ◽  
Muon Colliders ◽  
Particle Decays ◽  
Electrically Charged

Abstract We study the capabilities of a muon collider experiment to detect disappearing tracks originating when a heavy and electrically charged long-lived particle decays via X+→ Y+Z0, where X+ and Z0 are two almost mass degenerate new states and Y+ is a charged Standard Model particle. The backgrounds induced by the in-flight decays of the muon beams (BIB) can create detector hit combinations that mimic long-lived particle signatures, making the search a daunting task. We design a simple strategy to tame the BIB, based on a detector-hit-level selection exploiting timing information and hit-to-hit correlations, followed by simple requirements on the quality of reconstructed tracks. Our strategy allows us to reduce the number of tracks from BIB to an average of 0.08 per event, hence being able to design a cut-and-count analysis that shows that it is possible to cover weak doublets and triplets with masses close to $$ \sqrt{s}/2 $$ s / 2 in the 0.1–10 ns range. In particular, this implies that a 10 TeV muon collider is able to probe thermal MSSM higgsinos and thermal MSSM winos, thus rivaling the FCC-hh in that respect, and further enlarging the physics program of the muon collider into the territory of WIMP dark matter and long-lived signatures. We also provide parton-to-reconstructed level efficiency maps, allowing an estimation of the coverage of disappearing tracks at muon colliders for arbitrary models.

scholarly journals Searching for the squark flavor mixing in CP violations of Bs -> K+ K- and K0 K0 decays

2014 ◽  
Vol 2014 (2) ◽  
pp. 23B04-0 ◽  
Author(s):  
A. Hayakawa ◽  
Y. Shimizu ◽  
M. Tanimoto ◽  
K. Yamamoto
Keyword(s):  
Cp Violations ◽  
Flavor Mixing

scholarly journals A SOLUTION TO THE STRONG CP PROBLEM TRANSFORMING THE THETA ANGLE TO THE KM CP-VIOLATING PHASE

2010 ◽  
Vol 25 (32) ◽  
pp. 5897-5911 ◽  
Author(s):  
JOSÉ BORDES ◽  
HONG-MO CHAN ◽  
SHEUNG TSUN TSOU
Keyword(s):  
Mass Matrix ◽  
Fermion Mass ◽  
Mass Hierarchy ◽  
Order Unity ◽  
Ckm Matrix ◽  
Cp Violations ◽  
Fermion Mass Matrix

It is shown that in the scheme with a rotating fermion mass matrix (i.e. one with a scale-dependent orientation in generation space) suggested earlier for explaining fermion mixing and mass hierarchy, the theta angle term in the QCD action of topological origin can be eliminated by chiral transformations, while giving still nonzero masses to all quarks. Instead, the effects of such transformations get transmitted by the rotation to the CKM matrix as the KM phase giving, for θ of order unity, a Jarlskog invariant typically of order 10-5, as experimentally observed. Strong and weak CP violations appear then as just two facets of the same phenomenon.

Prospects for high precision measurements on muonic atoms at the front end of a muon collider

1998 ◽  
Author(s):  
D. Kawall ◽  
M. G. Boshier ◽  
V. W. Hughes ◽  
K. Jungmann ◽  
W. Liu ◽  
...  
Keyword(s):  
High Precision ◽  
Precision Measurements ◽  
Muonic Atoms ◽  
Front End ◽  
Muon Collider

scholarly journals How valuable is polarization at a muon collider? A test case: determining the CP nature of a Higgs boson

2000 ◽  
Vol 583 (1-2) ◽  
pp. 49-75 ◽  
Author(s):  
Bohdan Grzadkowski ◽  
John F. Gunion ◽  
Jacek Pliszka
Keyword(s):  
Higgs Boson ◽  
Test Case ◽  
Muon Collider

scholarly journals The Higgs Factory muon collider superconducting magnets and their protection against beam decay radiation

2018 ◽  
Vol 13 (10) ◽  
pp. P10024-P10024 ◽  
Author(s):  
N.V. Mokhov ◽  
V.V. Kashikhin ◽  
S.I. Striganov ◽  
I.S. Tropin ◽  
A.V. Zlobin
Keyword(s):  
Superconducting Magnets ◽  
Muon Collider
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