Recent content by Alkass

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    Simplified SUSY models with different mixing cases

    Hi Probably a bit technical, but here it is. I am trying to construct some simplfied SUSY models (that is, you only tune the masses of the core process, while all the rest are decoupled), and I would like to play with different mixing scenarios for the neutralino and charginos, so to get a...
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    Derivation of Ee in Inverse Compton Scattering

    Hi @Orodruin @BvU sorry for keep bugging you again, but any help would be highly appreciated
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    Derivation of Ee in Inverse Compton Scattering

    I think what I am not sure about, is how to derive the Ee given the fact that the the photon energy has to be corrected with the Doppler term and has been "boosted" by the gamma...
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    Derivation of Ee in Inverse Compton Scattering

    Hi Any hint for this ? Thanks again
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    Derivation of Ee in Inverse Compton Scattering

    Sorry, I just wanted to avoid redundancy as I already posted the link. What I have already in the reference frame of the e- for the photon E_0 = \gamma E_0^* (1- \frac{u}{c}cos\theta_0^*) \\ E_1 = \frac{E_0}{1+ \frac{E_0}{(m_e*c^2)}(1-cos\phi)} \\ E_1^*= \gamma E_1(1-...
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    Derivation of Ee in Inverse Compton Scattering

    Homework Statement In the inverse compton scattering, find the formula of the recoiled electron as a function of the incoming electron Homework Equations The energy of the incoming photon and electron are known. The Attempt at a Solution Starting from this...
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    Transforming Spherical Angles to Cartesian Coordinates for Beam Dynamics

    Yes, that is correct ie y'=dy/ds and x'=dx/ds as you care about the change of y/x on the direction of the movement ;-) So, when you say "outside of magnets" what do you mean ? and what about x' ? is there a similar approximation (and any reference would be great!) Thanks bunch!
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    Transforming Spherical Angles to Cartesian Coordinates for Beam Dynamics

    So, then I guess I need to calculate the actual derivative *not* just the ratio, right ?
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    Transforming Spherical Angles to Cartesian Coordinates for Beam Dynamics

    I guess you mean relation (95) ? And what happens to the dr ? for me I am starting with some energy / px, py,pz instead...
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    Transforming Spherical Angles to Cartesian Coordinates for Beam Dynamics

    Well, maybe I am missing something - The movement of the particles is along the z-axis (ie the reference obrit) and I need to calculate the y' = ds/dy and x'=ds/dx - So, the y' is actually the theta angle, but the phi angle accounts for the angle in the X-Y plane, while I would need the x' =...
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    Transforming Spherical Angles to Cartesian Coordinates for Beam Dynamics

    Hello I have this problem - From a generator, I get a compton scattering with the electrons theta and phi angles. where I having the following equations for a particle px = E_particle * sin (theta) * cos (phi); py = E_particle * sin (theta) * sin (phi); pz = E_particle * cos (theta)...
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    Propagation of charged particle inside a set of magnets

    Probably you missed that my library does not have it..so any other book suggestion ?
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    Propagation of charged particle inside a set of magnets

    something more recent? my library does not have it...
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    Propagation of charged particle inside a set of magnets

    Hi I am trying to find the equations of a charged particle inside a dipole & quadripole. Practically, I need to write a simulation program for it which assumes a beam passing through a dipole-quadripole-dipole which are setting around an arc. Is there some recommended literature ? Of course...
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    Whey new physics must lie around the TeV scale ?

    Hi I have been reading that we "believe" that new physics must be O(~1 TeV) and not higher and I am trying unsuccessfully to find some ref for this. What I do understand is that if we we assume the Standard Model is valid for scales Q<Λ , where Λ∼O(1TeV).At one-loop level, we get large...
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