# negative muon

## Definitions

• WordNet 3.6
• n negative muon an elementary particle with a negative charge and a half-life of 2 microsecond; decays to electron and neutrino and antineutrino
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## Usage

### In science:

For positive muons, the lifetime is the inverse of the muon decay rate, while for negative muons the lifetime is the inverse of the sum of the muon decay rate and the muon capture rate.
Muon Capture on Deuteron and 3He: A Personal Review
The lifetime difference thus determines the capture rate, assuming, according to the CPT theorem, the positive and negative muon decay rate identical.
Muon Capture on Deuteron and 3He: A Personal Review
K matrix is given by K = gV + 1 2 (gS )T , x = 2E M (E is the enmalisation is such that (cid:82) 1 ergy of the neutrino and M is the muon mass), and P+ (respectively, P− ) is the positive (respectively, negative) helicity pro jection operator.
Oscillation of Dirac and Majorana neutrinos from muon decay in the case of a general interaction
Thus these are largely muon neutrinos or antineutrinos. A separation can be made between the two by sweeping out the positively and negatively charged mesons in different directions.
Neutrinos at high energy accelerators
The results of the ﬁt which does not make use of the lepton universality assumption show a negative correlation of 21.0% (18.7%) between the W → τ ν τ and W → eν e (W → µν µ ) branching ratios, while between the electron and muon decay channels there is a positive correlation of 4.4%.
A Combination of Preliminary Electroweak Measurements and Constraints on the Standard Model
But can we steer negative muons? Short analysis gives a very encouraging answer.
Analytical theory of multipass crystal extraction
Let us say it simply: it is as easy to bend negatives at 64 µrad as it is to bend positives at 6.4 mrad—which is very easy indeed! Now let us recall that multiplicity factor greatly favors muons again, both positive and negative.
Analytical theory of multipass crystal extraction
After the LP01 conference was concluded, a new calculation of the π0 contribution 30,31 to the muon anomaly reached a very suprising conclusion: while previous calculations had found a negative sign, the new result, recently conﬁrmed by an independent computation 32 , found a positive sign.
Lepton Photon 2001 Concluding Remarks
We analyzed the muons coming from the direction of Cyg X-3 and Her X-1, searching for a modulated emission, with a negative result.
Search for cosmic ray sources using muons detected by the MACRO experiment
Furthermore a parameter set which survives the b → sγ bound generally leads a negative contribution to the muon g − 2.
Recent Muon g-2 Result in Deflected Anomaly-Mediated Supersymmetry Breaking
The results of the ﬁt which does not make use of the lepton universality assumption show a negative correlation of 19.1% (13.2%) between the W → τ ν τ and W → eν e (W → µν µ ) branching fractions, while between the electron and muon decay channels there is a positive correlation of 10.9%.
A Combination of Preliminary Electroweak Measurements and Constraints on the Standard Model
Columns 3 and 6 are the distances transversed in the Muon Chamber (in terms of nuclear interaction lengths) by positive and negative tracks, respectively.
Precision Measurements of the Timelike Electromagnetic Form Factors of the Pion, Kaon, and Proton
Columns 2 and 4 are the distances transversed in the Muon Chamber (in terms of nuclear interaction lengths) by positive and negative tracks, respectively.
Precision Measurements of the Timelike Electromagnetic Form Factors of the Pion, Kaon, and Proton
The kinematical domain accessible in COMPASS and its availability of positive and negative polarized muons gives it a ma jor opportunity to measure the different conﬁgurations of charge and spin of the beam, as explained by N. d’Hose.
Summary of the workshop DUBNA-SPIN 07
Therefore the functional dependence of the acceptance in | cos θ | fully cancels (if the acceptance for positive and negative muons is the same).
A simple event weighting technique for optimizing the measurement of the forward-backward asymmetry of Drell-Yan dilepton pairs at hadron colliders
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