Steve Geer OsC RAL 21 June, 2010 1

Muon Accelerator Program

MUON COLLIDER

& NEUTRINO FACTORY

R&D in the U.S.

The MAP Initiative

Steve Geer OsC RAL 21 June, 2010 2

• Muon Collider & Neutrino Factory R&D has been pursued in the U.S. since 1996 by the Neutrino Factory & Muon Collider Collaboration (NFMCC).

•The Muon Collider R&D activity was enhanced in 2006 by the addition of the Muon Collider Task Force (MCTF) at Fermilab.

•In October 2009 the DOE-OHEP leadership requested a new unified national organization (MAP) be put in place, and prepare a proposal for an enhanced R&D program:

-Motivated by recent progress, and an increased interest in a multi-TeV Muon Collider as a possible future facility at Fermilab

Letter from DOE-OHEP Leadership

Muon Accelerator ProgramMAP

Steve Geer OsC RAL 21 June, 2010 3

MAP Organization now in place

“Level 1”

“Level 0”

* L0, L1, L2 Interim assignments

“Level 2”

Steve Geer OsC RAL 21 June, 2010 4

MAP Proposal

● Submitted by Pier Oddone on behalf of the MAP collaboration, 1st March 2010.

● 214 MAP participants (at birth) from 14 institutions:

ANL, BNL, FNAL, Jlab, LBNL, ORNL, SNAL, Cornell, IIT, Princeton, UCB,

UCLA, UCR, U-Miss.

● Anticipate a DOE-OHEP review soon.

Steve Geer OsC RAL 21 June, 2010 5

MAP will pursue both Neutrino Factory & Muon Collider R&D

NEUTRINOFACTORY

MUONCOLLIDER

In present MC baseline design, Front End is same as for NF

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R&D Common to both NF & MC(from proton driver to initial cooling channel)

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• Front-End Design & Simulations- Pursued in the context of the IDS-NF- Includes site specific studies for NF/MC at FNAL, including using an upgraded Project X as the proton source (coordinator: Keith Gollwitzer)

• MERIT experiment (Great success – in final analysis phase)

• RF studies for cooling channel cavities operating in magnetic channels

-MuCool Test Area (MTA) program

• U.S. contributions to MICE (see talks tomorrow)

MuCool Test Area

Steve Geer OsC RAL 21 June, 2010 8

MUCOOL Test Area built at FNAL for ionization cooling component testing:

•5T magnet•RF power at 805MHz & 201MHz•LH2 handling capability•400MeV beam from linac

Muon Collider Decision Tree

Pier Oddone

0.5 TeV e+e-

3 TeV e+e-

3-4 TeV +-

Steve Geer OsC RAL 21 June, 2010 9

Muon Collider MotivationC

OS

T

PH

YS

ICS

If we can build a muon collider, it is an attractive multi-TeV lepton collider option because muons don’t radiate as readily as electrons (m / me ~ 207):

- COMPACT Fits on laboratory site- MULTI-PASS ACCELERATION Cost Effective- MULTIPASS COLLISIONS IN A RING (~1000 turns) Relaxed emittance requirements & hence relaxed tolerances

- NARROW ENERGY SPREAD Precision scans, kinematic constraints- TWO DETECTORS (2 IPs)-Tbunch ~ 10 s … (e.g. 4 TeV collider) Lots of time for readout Backgrounds don’t pile up- (m/me)2 = ~40000 Enhanced s-channel rates for Higgs-like particles

A 4 TeV Muon Collider wouldfit on the Fermilab Site

Steve Geer OsC RAL 21 June, 2010 10

Beam Energy Spread

Beamstrahlung in any e+e- collider

E/E 2

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MAP Goals

● Deliverables in 6-7 years:-Muon Collider Design Feasibility Report (FY16)- Hardware R&D results → technology choice- MC Cost range (FY16)- Also contributions to the IDS-NF RDR (FY14)

● Will address key R&D issues, including- Maximum RF gradients in magnetic field- Magnet designs for cooling, acceltn, collider- 6D cooling section prototype & bench test- Full start-to-end simulations based on technologies in hand, or achievable with a specified R&D programSteve Geer OsC RAL 21 June, 2010 12

Impact of the MAP Plan

Key component m

odels

NOWMAP PLAN

+ NFRDR

Muon Collider Development

Steve Geer OsC RAL 21 June, 2010 13

Evolution of Support

NFMCCNFMCC

+MCTF

InterimMAP

MAP

Last coupleof years

NOW(FY10)

FY11

~4 M$ ~9 M$ ~10 M$ ~15 M$ (requested)(~19 M$ enhanced plan)

First~10 years

Steve Geer OsC RAL 21 June, 2010 14

Physics, Detector & Background Studies

● In addition to MC accelerator R&D, a parallel but coordinated effort is foreseen on physics & detector studies:

-Machine-Detector Interface group within MAP will generate machine background files for, and “interface” with the physics-detector activity. - Physics-detector studies leader will participate in MAP “management council”.

● Detailed detector & Background studies from ~10 yrs ago gave encouraging results. A lot has happened since:

- New MC lattice design- A decade of detector development-Greater community expectations for detector performance

● New physics, detector, background studies begun:- Kick-off workshop at FNAL November 2009.- Rapid progress since then on shielding design (shielding cone angle reduced from 20deg to 10deg).-Active detector simulation group now being created.-Working towards an initial report ~mid-2011.

Steve Geer SPC FNAL 17 June, 2010 15

International Aspects

● Neutrino Factory R&D is pursued in an international framework: IDS-NF

- The MAP community is committed to making the required contributions to IDS-NF studies

● Muon Collider R&D is pursued mostly in the U.S.

- Making it more international would be a good thing- The MICE facility is potentially a wonderful asset for longer term Muon Collider R&D

● Had some good initial experience with joint Fermilab-UK accelerator R&D fellowships focused on muon accelerator R&D areas:

-The UK host has been Imperial College - Helps build R&D relationships in areas of common interest (e.g. MuCool RF R&D program, proton source issues, …)

Steve Geer OsC RAL 21 June, 2010 16

Summary

● There is a new U.S. organization (MAP). The proposed MAP plan is designed to:

-Continue support of the ongoing program (including U.S. commitments to MICE and the IDS-NF-Within the next 6-7 years find out whether a Muon Collider is feasible, and roughly what it would cost (cost range).

● The U.S. motivation for MAP is coupled to a muon-based vision for the long-term future of Fermilab.

● International collaboration on the R&D for these very ambitious but game-changing future accelerator facilities is very desirable

-Has been very good for the NF R&D program-Would be very healthy for Muon Collider R&DSteve Geer OsC RAL 21 June, 2010 17

ADDITIONAL SILDES

NFTo DUSEL

A Vision for the Future at FNAL

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